Intelligent sorting system and sorting method for construction waste

Abstract

The invention provides an intelligent sorting system and method for construction waste, and belongs to the technical field of construction waste sorting. The system comprises a feeding machine, a spiral screen, a first conveying belt, a second conveying belt, a third conveying belt, an inclined sorting conveying belt, an electromagnetic iron remover, a bouncing screen, a fourth conveying belt, a fifth conveying belt, a bar screen, a sixth conveying belt, a seventh conveying belt, an eighth conveying belt, a flip-flow screen, a ninth conveying belt, a tenth conveying belt, a magnetic substance collecting area, a light substance collecting area, a visual auxiliary sorting room and a crushing transfer area. A finished product collecting area and a control device; according to the construction waste sorting system, through combination of multi-stage screening and intelligent sorting, efficient and accurate sorting of construction waste is achieved, it is guaranteed that the purity of concrete and tiles entering the crusher is high, the sorting efficiency is remarkably improved, and the labor cost is reduced.

Description

Technical Field

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

[0002] With the acceleration of my country's urbanization and the rapid development of the construction industry, the amount of construction waste generated has been increasing year by year. According to statistics, construction waste accounts for 30%-40% of municipal solid waste, primarily consisting of concrete blocks, bricks and tiles, wood, metal, and plastic. Traditional methods of disposing of construction waste, primarily through landfill and simple stacking, not only occupy significant land resources but also cause environmental pollution and waste resources. Currently, construction waste sorting typically involves screening out wood, metal, plastic, and lightly littered materials. The remaining concrete blocks and bricks are then crushed in crushers for reuse. Sorting technologies primarily include manual and mechanical sorting. Manual sorting is inefficient, costly, and poses safety risks. Traditional mechanical sorting has limited accuracy for separating complex components, particularly concrete blocks and bricks. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art and to provide an intelligent sorting system and a sorting method for construction waste.

[0004] The technical solutions adopted by the present invention are as follows: In the first aspect, the present application provides an intelligent sorting system for construction waste, including a loader, a spiral screen, a conveyor belt 1, a conveyor belt 2, a conveyor belt 3, an inclined sorting conveyor belt, an electromagnetic iron remover, a bouncing screen, a conveyor belt 4, a conveyor belt 5, a bar screen, a conveyor belt 6, a conveyor belt 7, a conveyor belt 8, a tension screen, a conveyor belt 9, a conveyor belt 10, a magnetic material collection area, a light material collection area, a visually assisted sorting room, a crushing transfer area, a finished product collection area, and a control device; The construction waste is transported to the spiral screen through the loader, and the spiral screen selects small material A, light material A and heavy material A. The electromagnetic iron remover absorbs and transfers the magnetic material in the small material A transported along the conveyor belt one to the magnetic material collection area. The light material A is transported to the inclined sorting conveyor belt through the conveyor belt two, and then transported to the light material collection area through the inclined sorting conveyor belt. The heavy material A is transported to the bouncing screen through the conveyor belt three and sorted into light material B, heavy material C and small material B. The light material B is transported to the light material collection area through the conveyor belt four; Small material A is conveyed to the bar screen via conveyor belt 1. The bar screen includes an upper screen, a lower screen, and an anti-blowing blower. The upper screen screens out fine material A and conveys it to conveyor belt 5 via conveyor belt 6. The lower screen screens out fine material B and conveys it to the finished product collection area via conveyor belt 7. The anti-blowing blower blows light material C in fine material A onto conveyor belt 8, and conveys it to the tension screen via conveyor belt 8 to separate coarse material A and fine material C. The coarse material A is conveyed to the light material collection area via conveyor belt 9, and the fine material C is conveyed to conveyor belt 5 via conveyor belt 10. Heavy material C, small material B, fine material A and fine material C are transported to the visually assisted sorting room via conveyor belt five, where plastic waste, wood waste and materials to be crushed are sorted out. The materials to be crushed are then transported to the crushing transfer area via conveyor belt five.

[0005] In some embodiments, one end of the inclined sorting conveyor belt is located above conveyor belt three and below the exit end of conveyor belt two. The light material A is discharged along the inclined sorting conveyor belt to the light material collection area, and at the same time, the heavy material B mixed in the light material A falls to conveyor belt three.

[0006] In some embodiments, a negative pressure blower is further included, which sucks up the fine light matter in the fine material C on the conveyor belt 10 and discharges it to the light matter collection area.

[0007] In some embodiments, a foam blower is further included, and the fine material B passes through the foam blower via the conveyor belt 7, blowing the foam particles to the foam collection area.

[0008] In some embodiments, the visually assisted sorting room includes a first visual detector, a manual sorting position, a marking conveyor belt and several marking light modules. The marking conveyor belt and conveyor belt five are synchronized in speed. The manual sorting position includes a manual area, a wood collection area and a plastic collection area. The first visual detector is used to visually identify plastic waste and wood waste on conveyor belt five, and the marking light module is used to mark the identified plastic waste and wood waste.

[0009] In some embodiments, a second visual detector is further included, wherein the second visual detector is used to verify the recognition result of the first visual detector.

[0010] In a second aspect, the present application provides a sorting method applied to the intelligent construction waste sorting system, comprising the following steps: Step S1: Based on the sorting range of the sorter, the first visual detector obtains a first visual inspection area of the same area on the conveyor belt 5; Step S2: identifying plastic waste and wood waste within a first visual detection area using a first visual detector, and generating corresponding first location points; Step S3: marking the first location point using a marking light module, wherein the marking light module emits a first color of light to mark plastic waste and emits a second color of light to mark wood waste; Step S4: Control the marking conveyor belt and the conveyor belt five to synchronize their speeds so that the light and the corresponding first position point move synchronously; Step S5: The sorter quickly locates the plastic waste and wood waste based on the light and puts them into the corresponding collection area.

[0011] In some embodiments, the steps include: The second visual detection device obtains a second visual detection area on the conveyor belt 5 with the same area as the first visual detection area; Based on the first position point, verifying the recognition result of the first visual detector by using the second visual detector; If the recognition results are the same, the original light mark is maintained; If the recognition results are different, the marking light module emits a light of a third color to mark the first position point.

[0012] In some embodiments, the steps include: The area outside the first position point in the second visual detection area is identified by the second visual detector. If plastic waste and wood waste are identified, a corresponding second position point is generated, and the marking light module emits a fourth color light for marking.

[0013] In some embodiments, a manual check position is set, the first color is blue, which is used to mark plastic waste, the second color is green, which is used to mark wood waste, the third color is red, which is used to mark the first position point with different identification results, and the fourth color is yellow, which is used to mark the second position point. The sorter sorts the materials at the blue light source and green light source position points, and the manual check position sorts the materials at the yellow light source and red light source position points.

[0014] The present invention has the following beneficial effects: Through a combination of multi-stage screening and intelligent sorting, it achieves efficient and accurate sorting of construction waste. A spiral screen initially separates light materials (plastics, wood, foam, and paper) from heavy materials (concrete and bricks and tiles). An electromagnetic iron remover automatically recovers metals. A bouncing screen and bar screen further separate fine particles. A backblower and a relaxation screen are combined to remove residual light impurities. Finally, a visually assisted sorting room accurately identifies foreign materials such as plastic and wood, ensuring the purity of concrete and bricks entering the crusher. This significantly improves sorting efficiency and reduces labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying any creative work, other drawings obtained based on these drawings still fall within the scope of the present invention.

[0016] Figure 1 Schematic diagram of the intelligent sorting system for construction waste in the present invention; Figure 2 Schematic diagram of the rod screen in the present invention; Figure 3 Schematic diagram of the screening plate of the rod screen in the present invention; Figure 4 Schematic diagram of the visually assisted sorting room in the present invention Figure 1 ; Figure 5 Schematic diagram of the visually assisted sorting room in the present invention Figure 2 ; Figure 6 This is a flow chart of the sorting method of the intelligent sorting system for construction waste in the present invention; Figure 7 This is a logic diagram of the sorting method of the intelligent sorting system for construction waste in the present invention. DETAILED DESCRIPTION

[0017] The following description provides specific application scenarios and requirements for this specification, with the goal of enabling those skilled in the art to make and use the contents of this specification. Various modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of this specification. Therefore, this specification is not limited to the embodiments shown, but is intended to be accorded the broadest scope consistent with the claims.

[0018] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "longitudinal", "transverse", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe this application and its embodiments, and are not intended to limit the indicated devices, elements or components to a specific orientation, or to be constructed and operated in a specific orientation.

[0019] It should be noted that the terms "first", "second" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components and should not be understood as limitations on the embodiments of the present application.

[0020] It should be noted that the terms "installed," "set," "provided with," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; or internal communication between two devices, elements, or components.

[0021] It should be noted that the terms "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in this application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example" is intended to present related concepts in a concrete way, meaning that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the above words in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] Regarding the drawings of this application, it should be clearly understood that the drawings are for illustration and description purposes only and are not intended to limit the scope of this specification. It should also be understood that the drawings are not necessarily drawn to scale.

[0024] like Figures 1 to 5 As shown, this specification provides an intelligent sorting system for construction waste, including a loader 1, a spiral screen 2, a conveyor belt 1 3, a conveyor belt 2 4, a conveyor belt 3 5, an inclined sorting conveyor belt 6, an electromagnetic iron remover 7, a bouncing screen 8, a conveyor belt 4 9, a conveyor belt 5 10, a rod screen 11, a conveyor belt 6 12, a conveyor belt 7 13, a conveyor belt 8 14, a relaxation screen 15, a conveyor belt 9 16, a conveyor belt 17, a magnetic material collection area 18, a light material collection area 19, a visually assisted sorting room 20, a crushing transfer area 21, a finished product collection area 22 and a control device; it should be understood that the loader 1 adopts a loading device commonly used in the art, such as a chain feeder, each conveyor belt adopts a conveying device commonly used in the art, such as a belt conveyor, and each collection area is a storage container or storage space.

[0025] The construction waste is transported to the spiral screen 2 through the loader 1, and the spiral screen 2 sorts out small matter A, light matter A and heavy matter A. The spiral screen 2 is a screening device commonly used in this technical field, generally including a number of spiral rods arranged in parallel. When the construction waste passes through the spiral screen, the small matter A will fall from the gap between adjacent spiral rods, the heavy matter A will move in the opposite direction along the axial direction of the spiral rod, and the light matter A will move in the opposite direction along the rotation of the spiral rod, so that the three substances are sorted out.

[0026] It can be understood that small matter A generally refers to construction waste that can pass through the gap between adjacent spiral rods, light matter A generally refers to various light parabolic objects, such as plastic, paper, foam, etc., which are larger than small matter A, and heavy matter A generally refers to stones, concrete blocks, etc., which are heavier than light matter A and larger in size than small matter A.

[0027] The electromagnetic iron remover 7 is arranged on the conveying path of the conveyor belt 3, and can adsorb and transfer the magnetic material in the small material A transported along the conveyor belt 3 to the magnetic material collection area 18, so that the magnetic material can be screened out and collected. The electromagnetic iron remover 7 can refer to the self-unloading iron remover in the prior art and will not be described in detail here.

[0028] It can be understood that the magnetic material refers to metal materials that can be adsorbed by the electromagnetic iron remover 7, such as steel bars, iron blocks, etc.

[0029] The light material A is transported to the inclined sorting conveyor belt 6 through the conveyor belt 2 4, and then transported to the light material collection area 19 through the inclined sorting conveyor belt 6. Specifically, one end of the inclined sorting conveyor belt 6 is located above the conveyor belt 3 5 and below the outlet end of the conveyor belt 2 4. The light material A is discharged to the light material collection area 19 along the inclined sorting conveyor belt 6. At the same time, the heavy material B mixed in the light material A falls onto the conveyor belt 3 5. The inclined sorting conveyor belt 6 adopts an angle-adjustable conveying device in this technical field. Preferably, anti-slip grooves are provided on the conveying surface to facilitate better conveying of the light material A, and the heavy material B mixed in the light material A will fall onto the conveyor belt 3 5 under the action of its own gravity.

[0030] It can be understood that the heavy material B generally refers to stones, concrete blocks, etc. mixed in the light material A, and its weight is greater than the light material A.

[0031] The heavy material A is transported to the bouncing screen 8 through the conveyor belt three 5, and is sorted into light material B, heavy material C and small material B. The bouncing screen 8 is a screening device commonly used in this field and will not be described in detail here. The heavy material A enters the bouncing screen 8, and the heavier material rolls backward onto the conveyor belt five 10. The small material B falls from the gap and also falls onto the conveyor belt five 10. The light material B moves forward and falls onto the conveyor belt four 9, and is transported to the light material collection area 19 through the conveyor belt four 9.

[0032] It can be understood that small matter B generally refers to construction waste that can bounce through the gaps between the screening plates in the screen 8, light matter B generally refers to various light parabolic objects, such as plastic, paper, foam, etc., which are larger than small matter B, and heavy matter C generally refers to stones, concrete blocks, etc., which are heavier than light matter B and larger in size than small matter B.

[0033] Small material A is transported to the bar screen 11 through the conveyor belt 3. Figure 2 and Figure 3 As shown, the bar screen 11 includes an upper screen 110, a lower screen 111 and an anti-blowing blower 112. The upper screen 110 screens out fine material A and transports it to the conveyor belt 5 10 through the conveyor belt 6 12. The lower screen 111 screens out fine material B and transports it to the finished product collection area 22 through the conveyor belt 7 13. The anti-blowing blower 112 blows the light material C in the fine material A onto the conveyor belt 8 14. Specifically, the upper screen 110 and the lower screen 111 are spaced apart in the upper and lower parts, and the front end is higher than the rear end and is tilted. The small material A is transported to the front end of the upper screen 110 through the conveyor belt 13. The bar screen 11 includes a plurality of screening plates 1100 arranged in parallel. The screening plates 1100 are generally trapezoidal plates, thereby forming a filtering gap with a wide front end and a narrow rear end. Preferably, the filtering gap of the lower screen 111 is smaller than the filtering gap of the upper screen 110, and channel one is provided at the rear end of the upper screen 110 and the lower screen 111. Channel one is divided into channel two and channel three below, channel one and channel two are connected, and an opening is provided between channel three and channel two, and the anti-blowing machine 112 is aligned with the opening.

[0034] The material screened by the upper screen 110 falls onto the lower screen 111, and then is screened by the lower screen 111 and falls onto the conveyor belt seven 13. The material above the upper screen 110 falls into channel one along the upper screen 110, and then falls onto the conveyor belt six 12 through channel two. During this process, the back-blowing machine 112 blows the light matter C in the material to the opening along channel three and falls onto the conveyor belt eight 14. The material above the lower screen 111 falls into channel three along the lower screen 111, and then falls onto the conveyor belt eight 14 through channel three.

[0035] It can be understood that the rod screen 11 can remove dirt blocks on the surface of small objects A, such as dirt blocks on the surface of plastic bottles.

[0036] It should be understood that the rod screen 11 is a screening device commonly used in the art, and the remaining structures will not be described in detail here.

[0037] The light material C is conveyed to the loose screen 15 via the conveyor belt eight 14. The loose screen 15 is a screening device commonly used in this field and will not be described in detail here. The light material C is sorted into coarse material A and fine material C by the loose screen 15. The coarse material A is conveyed to the light material collection area 19 via the conveyor belt nine 16, and the fine material C is conveyed to the conveyor belt five 10 via the conveyor belt ten 17. The heavy material C, small material B, fine material A and fine material C are conveyed to the visually assisted sorting room 20 via the conveyor belt five 10 to sort out plastic waste, wood waste and materials to be crushed. The materials to be crushed are conveyed to the crushing transfer area 21 via the conveyor belt five 10. After that, the materials to be crushed only need to be transferred to the crusher for crushing.

[0038] This sorting system achieves efficient and accurate sorting of construction waste through a combination of multi-stage screening and intelligent sorting. A spiral screen initially separates light materials (plastics, wood, foam, and paper) from heavy materials (concrete and bricks and tiles). An electromagnetic iron remover automatically recovers metals. A bouncing screen and bar screen further separate fine particles. A backblower and a relaxation screen remove residual light impurities. Finally, a visually assisted sorting room accurately identifies foreign materials such as plastic and wood, ensuring the purity of concrete and bricks entering the crusher. This significantly improves sorting efficiency and reduces labor costs.

[0039] In some embodiments, a negative pressure blower 23 is further included to suck up the fine, light material from the fine material C on conveyor belt 17 and discharge it to the light material collection area 19, further removing the light material, which is smaller, light parabolic material. Optionally, conveyor belt 17 is higher than conveyor belt 29 9, and a U-shaped negative pressure duct is provided, with one end located above conveyor belt 17 and the other end located above conveyor belt 29 9. The negative pressure blower 23 is positioned on the side of the negative pressure duct near conveyor belt 29 9. Thus, the negative pressure blower 23 sucks up the fine, light material from the fine material C on conveyor belt 17 and transfers it to conveyor belt 29 9.

[0040] In some embodiments, a foam blower 24 is further included. Fine material B passes through the foam blower 24 on the conveyor belt 13, blowing foam particles to the foam collection area 25, effectively removing foam particles from the fine material B. Optionally, a box is provided on the conveyor belt 13, through which the conveyor belt 13 passes. The inlet and outlet of the box are provided with flexible sealing sheets. The foam blower 24 is provided on one side of the box, and a conveying pipe is provided on the other side of the box, which is connected to the foam collection area 25.

[0041] In some embodiments, as Figure 4 and Figure 5As shown, the visually assisted sorting room 20 includes a first visual detector 26, a manual sorting station 27, a marking conveyor belt 28, and several marking light modules 29. The marking conveyor belt 28 is synchronized with the speed of conveyor belt 5 10 and is arranged parallel to and above conveyor belt 5 10. The manual sorting station 27 includes a manual area 270, a wood collection area 271, and a plastic collection area 272. The wood collection area 271 and the plastic collection area 272 include delivery pipes and storage spaces located below the visually assisted sorting room 20 and connected to the corresponding delivery pipes. The first visual detector 26 is used to visually identify plastic and wood waste on conveyor belt 5 10, and the marking light modules 29 are used to mark the identified plastic and wood waste. Considering both cost and sorting efficiency, the combination of visual recognition and manual sorting is the most cost-effective. It not only improves sorting efficiency and accuracy, but also avoids the difficulty of the robot arm in grasping or sucking irregular materials.

[0042] Among them, the marking light module 29 includes a flexible substrate and a plurality of light generators arrayed on the flexible substrate. The light emitter can be a semiconductor laser module, which can emit lasers of multiple colors. Several marking light modules 29 are sequentially covered on the marking conveyor belt 28 along the conveying direction of the marking conveyor belt 28 through the flexible substrate, so that the marking light module 29 can be transported along the marking conveyor belt 28.

[0043] Furthermore, a second visual detector 30 is included. The second visual detector 30 is used to verify the recognition result of the first visual detector 26, which can effectively improve the recognition accuracy.

[0044] The first visual detector 26 and the second visual detector 30 are CCD visual cameras.

[0045] like Figure 6 and Figure 7 As shown, this specification also provides a sorting method applied to the intelligent sorting system for construction waste, comprising the following steps: Step S1: Based on the sorting range of the sorter, the first visual detector 26 obtains a first visual inspection area 31 of the same area on the conveyor belt 5 10; wherein the sorting range is the area that the sorter can sort at the workstation, generally configured as a square block, and the first visual inspection area 31 is an identical square block.

[0046] Step S2: identifying plastic waste and wood waste in the first visual detection area 31 through the first visual detector 26 and generating corresponding first position points; Regarding the identification of plastic waste and wood waste, reference can be made to effective identification methods in the prior art. For example, the identification method includes the following steps: The first visual detector 26 collects the RGB image and the near-infrared spectrum image of the construction waste pile in the first visual detection area 31; Morphological filtering and histogram equalization are used to denoise and enhance the contrast of the image; The target area is extracted by HSV color space segmentation, and the fragment outline is located by combining edge detection algorithm; Extract multi-dimensional features of the target area, including: i. Color features: RGB channel mean variance, H component histogram kurtosis; ii. Texture features: Contrast and homogeneity indicators of the gray-level co-occurrence matrix; specifically, a fusion algorithm of local binary pattern (LBP) and histogram of oriented gradients (HOG) is used, with an 8×8 pixel grid and 16 directional gradient statistics.

[0047] iii. Spectral characteristics: Slope of the reflectivity curve in the near-infrared band of 700-1000nm. Generally, the reflectivity increase of plastic materials in the 850-950nm band is greater than 12% / 100nm; the reflectivity increase of wood materials in the same band is less than 5% / 100nm.

[0048] iv. Surface gloss: quantified based on the area ratio of the specular reflection spot; It should be understood that the features used for identification are not limited thereto, and reasonable features can be obtained for identification based on the actual situation of the construction waste.

[0049] Input the feature vector into a pre-trained visual recognition model and output the classification result. For example, the ResNet-18 network is used for plastics and the random forest classifier is used for wood. Regarding generating the first position point, reference may be made to a position generation method in the prior art. Exemplarily, the position generation method includes the following steps: The first visual detection area 31 is divided into a number of unit grids based on the number of light generators in each marking light module 29, the light emitter is located at the center of each unit grid, and a first position point is configured for each unit grid; for example 、 、 … Of course, it is also possible to first divide the first visual detection area 31 into a number of unit grids, and configure a light generator for each unit grid.

[0050] The first visual detector 26 identifies the plastic waste and wood waste in each unit grid, and outputs the first position point of the corresponding unit grid and the corresponding type of waste in the unit grid according to the identification result, so there is no need to introduce precise coordinate calculation.

[0051] Step S3: Mark the first location point through the marking light module 29, wherein the marking light module 29 emits a first color of light to mark plastic waste and a second color of light to mark wood waste; that is, based on the corresponding type of waste in the unit grid, the corresponding light generator of the unit grid emits corresponding light.

[0052] Generally, plastic waste can be marked with a blue light source and wood waste with a green light source.

[0053] For example, when the first visual detector 26 recognizes If there is wood waste in the unit grid, The light generator corresponding to the unit grid emits green light.

[0054] For example, when the first visual detector 26 recognizes If there are both wood waste and plastic waste in the unit grid, The light generator corresponding to the unit grid emits green light and blue light at the same time.

[0055] It can be understood that each semiconductor laser module corresponds to an area of a unit area in the first visual inspection area 31. The more semiconductor laser modules there are, the higher the sorting efficiency of the sorter.

[0056] Step S4: Control the marking conveyor belt 28 and the conveyor belt 5 10 to move synchronously so that the light and the corresponding first position point move synchronously; Step S5: The sorter quickly locates the plastic waste and wood waste based on the light and puts them into the corresponding collection area. Preferably, the delivery pipes of the wood collection area 271 and the plastic collection area 272 can be set to corresponding colors.

[0057] In some embodiments, the steps include: The second visual detection area 30 acquires a second visual detection area 32 on the conveyor belt 5 10 that is the same area as the first visual detection area 31; Based on the first position point, the recognition result of the first visual detector 26 is verified by the second visual detector 30; the first position point is directly verified to narrow the recognition area.

[0058] If the recognition results are the same, the original light mark is maintained; If the recognition results are different, the marking light module 29 emits a third color to mark the first position point.

[0059] With this arrangement, the first visual detector 26 and the second visual detector 30 form a cross-verification, and the disputed area is calibrated by a third color, which reduces the misjudgment rate compared with a single detection system. The third color is generally red, which is more eye-catching.

[0060] In some embodiments, the steps include: The second visual detector 30 is used to identify the area outside the first position point in the second visual detection area 32, that is, to identify the unmarked unit grid. If plastic waste and wood waste are identified, the corresponding second position point is generated, and the marking light module 29 emits a fourth color of light for marking, thereby avoiding missed recognition by the first visual detector 26.

[0061] For example, the second visual detection area 32 identifies There is plastic waste in the cell grid. The light generator corresponding to the unit grid emits yellow light.

[0062] If the red light source or the yellow light source appears multiple times within a certain period of time, it means that the first visual detector 26 and the second visual detector 30 may be faulty.

[0063] In some embodiments, a manual check position 33 is set, and the manual check position 33 also includes a manual area 270, a wood collection area 271 and a plastic collection area 272. The first color is blue, which is used to mark plastic waste, the second color is green, which is used to mark wood waste, the third color is red, which is used to mark the first position point with different recognition results, and the fourth color is yellow, which is used to mark the second position point. The sorter sorts the materials at the blue light source and green light source position points, and the verifier sorts the materials at the yellow light source and red light source position points, thereby further improving the sorting efficiency.

[0064] Furthermore, a selection button and a third visual detector are set at the manual verification position 33. The selection button includes three buttons: plastic, wood, and non-plastic / wood. The third visual detector is used to identify the location where the verifier picks up the material. Combined with the button pressed by the verifier, and the recognition results of the first visual detector 26 and the second visual detector 30 at the same location, the visual detector that makes an incorrect judgment is recorded.

[0065] Set a cycle, count the number of errors of each visual detector within the cycle, optimize the visual recognition model, and then count the number of errors of each visual detector within the cycle to determine the optimization effect.

[0066] In summary, after reading this detailed disclosure, those skilled in the art will appreciate that the foregoing detailed disclosure may be presented by way of example only and may not be limiting. Although not expressly stated herein, those skilled in the art will understand that the present application requires various reasonable changes, improvements, and modifications to the embodiments. Such changes, improvements, and modifications are intended to be proposed by the present application and are within the spirit and scope of the exemplary embodiments of the present application.

[0067] Furthermore, it should be understood that in the foregoing descriptions of the embodiments of this application, in order to facilitate understanding of a feature and to simplify this application, this application combines various features into a single embodiment, figure, or description thereof. However, this does not mean that the combination of these features is required. When reading this application, it is entirely possible for a person skilled in the art to label some of the devices as separate embodiments. In other words, the embodiments of this application can also be understood as the integration of multiple sub-embodiments. This also applies when the content of each sub-embodiment is less than all the features of a single aforementioned disclosed embodiment.

[0068] Finally, it should be understood that the embodiments of the application disclosed herein are illustrations of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Therefore, the embodiments disclosed in the present application are merely examples and not limitations. Those skilled in the art can adopt alternative configurations based on the embodiments in the present application to implement the applications in the present application. Therefore, the embodiments of the present application are not limited to the embodiments precisely described in the application.

Claims

1. Intelligent sorting system for construction waste, characterized by: It includes a loader, a spiral screen, conveyor belt 1, conveyor belt 2, conveyor belt 3, an inclined sorting conveyor belt, an electromagnetic iron remover, a bouncing screen, conveyor belt 4, conveyor belt 5, a bar screen, conveyor belt 6, conveyor belt 7, conveyor belt 8, a tension screen, conveyor belt 9, conveyor belt 10, a magnetic material collection area, a light material collection area, a visually assisted sorting room, a crushing transfer area, a finished product collection area, and a control device; The construction waste is transported to the spiral screen through the loader, and the spiral screen selects small material A, light material A and heavy material A. The electromagnetic iron remover absorbs and transfers the magnetic material in the small material A transported along the conveyor belt one to the magnetic material collection area. The light material A is transported to the inclined sorting conveyor belt through the conveyor belt two, and then transported to the light material collection area through the inclined sorting conveyor belt. The heavy material A is transported to the bouncing screen through the conveyor belt three and sorted into light material B, heavy material C and small material B. The light material B is transported to the light material collection area through the conveyor belt four; Small material A is conveyed to the bar screen via conveyor belt 1. The bar screen includes an upper screen, a lower screen, and an anti-blowing blower. The upper screen screens out fine material A and conveys it to conveyor belt 5 via conveyor belt 6. The lower screen screens out fine material B and conveys it to the finished product collection area via conveyor belt 7. The anti-blowing blower blows light material C in fine material A onto conveyor belt 8, and conveys it to the tension screen via conveyor belt 8 to separate coarse material A and fine material C. The coarse material A is conveyed to the light material collection area via conveyor belt 9, and the fine material C is conveyed to conveyor belt 5 via conveyor belt 10. Heavy material C, small material B, fine material A and fine material C are transported to the visually assisted sorting room via conveyor belt five, where plastic waste, wood waste and materials to be crushed are sorted out. The materials to be crushed are then transported to the crushing transfer area via conveyor belt five.

2. The intelligent construction waste sorting system according to claim 1 is characterized in that: One end of the inclined sorting conveyor belt is located above conveyor belt three and below the outlet end of conveyor belt two. Light material A is discharged to the light material collection area along the inclined sorting conveyor belt, and at the same time, heavy material B mixed in the light material A falls to conveyor belt three.

3. The intelligent construction waste sorting system according to claim 1 is characterized in that: It also includes a negative pressure fan, which sucks up the fine light matter in the fine material C on the conveyor belt 10 and discharges it to the light matter collection area.

4. The intelligent construction waste sorting system according to claim 1 is characterized in that: It also includes a foam blower, and the fine material B passes through the foam blower via the conveyor belt 7, and the foam particles are blown to the foam collection area.

5. The intelligent construction waste sorting system according to claim 1 is characterized in that: The visually assisted sorting room includes a first visual detector, a manual sorting position, a marking conveyor belt and several marking light modules. The marking conveyor belt and conveyor belt five are synchronized in speed. The manual sorting position includes a manual area, a wood collection area and a plastic collection area. The first visual detector is used to visually identify plastic waste and wood waste on conveyor belt five, and the marking light module is used to mark the identified plastic waste and wood waste.

6. The intelligent construction waste sorting system according to claim 5 is characterized in that: The system further includes a second visual detector, which is used to verify the recognition result of the first visual detector.

7. The sorting method applied to the intelligent sorting system for construction waste according to claim 5 or 6 is characterized in that: The following steps are involved: Step S1: Based on the sorting range of the sorter, the first visual detector obtains a first visual inspection area of the same area on the conveyor belt 5; Step S2: identifying plastic waste and wood waste within a first visual detection area using a first visual detector, and generating corresponding first location points; Step S3: marking the first location point using a marking light module, wherein the marking light module emits a first color of light to mark plastic waste and emits a second color of light to mark wood waste; Step S4: Control the marking conveyor belt and the conveyor belt five to synchronize their speeds so that the light and the corresponding first position point move synchronously; Step S5: The sorter quickly locates the plastic waste and wood waste based on the light and puts them into the corresponding collection area.

8. The sorting method of the intelligent construction waste sorting system according to claim 7, characterized in that: The following steps are involved: The second visual detection device obtains a second visual detection area on the conveyor belt 5 with the same area as the first visual detection area; Based on the first position point, verifying the recognition result of the first visual detector by using the second visual detector; If the recognition results are the same, the original light mark is maintained; If the recognition results are different, the marking light module emits a light of a third color to mark the first position point.

9. The sorting method of the intelligent construction waste sorting system according to claim 8, characterized in that: The following steps are involved: The area outside the first position point in the second visual detection area is identified by the second visual detector. If plastic waste and wood waste are identified, a corresponding second position point is generated, and the marking light module emits a fourth color light for marking.

10. The sorting method of the intelligent sorting system for construction waste according to claim 9, characterized in that: A manual check position is set, the first color is blue, which is used to mark plastic waste, the second color is green, which is used to mark wood waste, the third color is red, which is used to mark the first position point with different recognition results, and the fourth color is yellow, which is used to mark the second position point. The sorter sorts the materials at the blue light source and green light source position points, and the manual check position sorts the materials at the yellow light source and red light source position points.

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