Demolition waste common line processing method and equipment

By dismantling the shared waste treatment methods and equipment, and using shared equipment to process concrete waste and ordinary demolition waste, and utilizing public crushing and sorting facilities, the problems of high investment, large land area, and high operating costs in existing technologies have been solved, achieving efficient and energy-saving waste treatment.

CN115770783BActive Publication Date: 2025-10-28BCEG RESOURCES RECYCLING CO LTD
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Patent Information

Application Number
CN202211491480.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-25
Publication Date
2025-10-28
Estimated Expiration
2042-11-25

AI Technical Summary

Technical Problem

In the current demolition waste disposal process, the separate processing of concrete waste and ordinary demolition waste results in high overall investment, large land area, and high operating costs.

Method used

The method and equipment for co-processing demolition waste are adopted. Concrete waste and general demolition waste are processed by sharing equipment. A common crushing and sorting mechanism is used, combined with visual recognition and color sorting technology, to separate and crush concrete waste and general demolition waste. A shared storage hopper is used for temporary storage of materials, and the processing sequence is optimized to save energy and land area.

Benefits of technology

It reduced the total cost and floor space of the equipment, improved processing efficiency, saved energy consumption, and achieved efficient co-line processing of concrete waste and ordinary demolition waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a method and equipment for co-processing demolition waste, relating to the technical field of construction waste treatment. In the method, during the concrete waste treatment process, the first undersize material obtained from the primary concrete screening can be temporarily stored in a first storage hopper, awaiting centralized processing during the general demolition waste treatment phase. This avoids separate processing of the first undersize material, saving energy. Similarly, during the general demolition waste treatment process, the concrete portion removed from the general demolition waste is temporarily stored in a second storage hopper, and processed together with the concrete waste during the general demolition waste treatment phase. This also avoids separate processing of the concrete portion, saving energy. Furthermore, the concrete waste treatment step and the general demolition waste treatment step utilize a shared crushing and sorting mechanism, thereby reducing the total cost of the production line and the equipment's footprint.
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Description

Technical Field

[0001] This invention relates to the field of construction waste treatment technology, and in particular to a method and equipment for the co-processing of demolition waste. Background Technology

[0002] Demolition waste generally refers to construction waste generated when demolishing dilapidated buildings. It includes broken bricks, (reinforced) concrete, cement mortar, fine slag, broken wood, glass shards, damaged tiles, scrap metal, waste plastics, and various related decorative materials, packaging materials, and other waste.

[0003] Demolition waste includes pure concrete blocks. Pure concrete blocks are a special type of demolition waste, characterized by their simple composition and low impurity content. They generally contain little or no lightweight materials and a small amount of slag. The recycled aggregate obtained after processing pure concrete blocks is called recycled concrete aggregate, which has a high market value. Given the characteristics of the raw materials and recycled aggregate of pure concrete blocks, current urban demolition waste disposal processes separate pure concrete demolition waste from ordinary demolition waste; the two are generally not processed on the same production line.

[0004] Currently, the disposal of demolition waste typically involves two processing lines. This process is characterized by high overall investment, large land area requirements, and high operating costs. Summary of the Invention

[0005] The purpose of this invention is to provide a method and equipment for the co-processing of demolition waste, so as to alleviate the technical problems of high overall investment, large land area and high operating costs when concrete waste and ordinary demolition waste are processed separately in the existing demolition waste processing process.

[0006] In a first aspect, the present invention provides a method for co-processing demolition waste, which simultaneously processes concrete waste or ordinary demolition waste using a co-processing equipment for demolition waste, including a concrete waste processing step and an ordinary demolition waste processing step, wherein one of the concrete waste processing step and the ordinary demolition waste processing step is performed before the other, wherein the concrete waste processing step includes:

[0007] Step SA1. Perform primary concrete screening on the concrete waste to obtain the first oversize material and the first undersize material with a particle size in the range of 0-30mm; and temporarily store the first undersize material in the first storage hopper;

[0008] Step SA2. The material on the first sieve is crushed once, and the crushed material is graded and screened to obtain the portion that meets the first particle size range and the portion that meets the second particle size range;

[0009] Step SA3. The portion that meets the first particle size range is subjected to secondary crushing using a common crushing mechanism;

[0010] Step SA4. Use a common sorting mechanism to screen the product that has undergone secondary crushing in step SA3 and the portion that meets the second particle size range in step SA2, thereby obtaining multiple groups of concrete aggregates with different particle size ranges.

[0011] The routine demolition waste disposal steps include:

[0012] Step SB1. Separate the ordinary demolition waste to remove the concrete portion; and temporarily store the concrete portion in the second storage hopper; when proceeding to step SA2, crush the concrete portion together with the material on the first screen.

[0013] Step SB2. The ordinary demolition waste with the concrete removed is crushed once, and the light and metallic materials in the crushed products are removed to obtain the first product;

[0014] Step SB3. The first product is subjected to secondary crushing using a common crushing mechanism; and when there is material undersize in the first storage hopper, the first product and the material undersize are subjected to secondary crushing using the common crushing mechanism; thereby obtaining the second product.

[0015] Step SB4. Use a common sorting mechanism to screen the products that have undergone secondary crushing in step SB3, thereby obtaining brick and concrete aggregates with different particle size ranges.

[0016] Furthermore, the first storage hopper and the second storage hopper are a common storage hopper;

[0017] The following steps are included before the concrete waste disposal and general demolition waste disposal steps:

[0018] To determine whether the product stored in the public storage hopper is the first screen undersize material or concrete;

[0019] When the product stored in the public storage hopper is the first screened material, ordinary demolition waste treatment is carried out first, starting from step SB3, and the product inventory in the public storage hopper is monitored in real time. When the inventory is zero, ordinary demolition waste treatment is carried out according to steps SB1-SB4.

[0020] When the product stored in the public storage hopper is concrete, concrete waste treatment is carried out first. The concrete in the public storage hopper is first crushed, and the crushed material is graded and screened to obtain the part that meets the first particle size range and the part that meets the second particle size range. The product inventory in the public storage hopper is monitored in real time. When the inventory is zero, concrete waste treatment is carried out according to steps SA1-SA4.

[0021] Furthermore, in step SB1, the step of separating ordinary demolition waste specifically involves: using a visual recognition system to identify the concrete portion in the ordinary demolition waste, and then using a robotic arm to grab the concrete portion.

[0022] Furthermore, step SB4 specifically includes:

[0023] Step SB41. Use a common sorting mechanism to screen the product that underwent secondary crushing in step SB3;

[0024] Step SB42. Perform air separation on the screened product to remove impurities and light substances;

[0025] Step SB43. Perform color sorting on the product after air separation to separate brick and concrete by utilizing the color difference between the two, and obtain brick aggregate and concrete aggregate.

[0026] Furthermore, step SB2 specifically includes:

[0027] Step SB21. Crush the ordinary demolition debris from the concrete removal section once;

[0028] Step SB22. Remove light materials from the crushed products by manual sorting;

[0029] Step SB23. Remove the metallic substances using a magnetic separation mechanism to obtain the first product.

[0030] Secondly, the present invention provides a device for removing shared waste lines, used to implement the above-mentioned method for removing shared waste lines.

[0031] Furthermore, it includes: a screening mechanism, a concrete crushing mechanism, a grading screening mechanism, a first storage hopper, a common crushing mechanism, a common sorting mechanism, a selective material flow separation device, a second storage hopper, a waste crushing mechanism, and a sorting mechanism;

[0032] The screening mechanism is used to perform primary concrete screening on concrete waste, thereby obtaining the first oversize material and the first undersize material with a particle size in the range of 0-30mm.

[0033] The first storage hopper is used to temporarily store the first screened material;

[0034] The concrete crushing mechanism is used to crush the material on the first screen and / or the concrete portion in the second storage hopper in one step.

[0035] The grading and screening mechanism is used to grade and screen the first crushed material after crushing to obtain a portion that meets the first particle size range and a portion that meets the second particle size range.

[0036] The common crushing mechanism can perform secondary crushing on the portion that meets the first particle size range.

[0037] The common sorting mechanism can screen the products crushed by the common crushing mechanism and the portion that meets the second particle size range, thereby obtaining multiple groups of concrete aggregates with different particle size ranges.

[0038] The selective material flow separation device is used to separate ordinary demolition waste and remove the concrete portion from it.

[0039] The second storage hopper is used to store the concrete portion;

[0040] The waste crushing mechanism is used to crush ordinary demolition waste, from which the concrete has been removed, in one step.

[0041] The sorting mechanism is used to remove light and metallic substances from the crushed products, thereby obtaining the first product;

[0042] The common crushing mechanism is capable of performing secondary crushing on the first product and / or the first undersize material;

[0043] The public sorting mechanism can screen the second product to obtain brick and concrete aggregates with different particle size ranges.

[0044] Furthermore, the selective material flow separation device includes a conveyor belt, a vision recognition system, and a robotic arm. The conveyor belt is used to transport ordinary demolition waste, the vision recognition system identifies the concrete portion in the ordinary demolition waste, and the robotic arm grabs the concrete portion.

[0045] Furthermore, the first and second storage hoppers are a common storage hopper, and a color sorting mechanism is provided inside the common storage hopper. The color sorting mechanism is used to identify whether the product stored in the common storage hopper is the first screen undersize material or the concrete part.

[0046] Furthermore, the common storage hopper includes a rectangular tube with openings at the top and bottom. The inlets of the concrete crushing mechanism and the common crushing mechanism are arranged side by side below the lower opening of the rectangular tube. The rectangular tube includes a first side wall, a second side wall, a third side wall, and a fourth side wall connected end to end.

[0047] A baffle is hinged between the second sidewall and the fourth sidewall. The baffle has two rotating shafts on both sides that are rotatably connected to the second sidewall and the fourth sidewall. The rotating shafts are located at the middle position in the length direction of the baffle, and a driving mechanism is connected to the rotating shafts.

[0048] The length of the baffle is equal to the length of the diagonal of the second sidewall; the baffle has a first state and a second state. In the first state, the baffle is parallel to one diagonal of the second sidewall; in the second state, the baffle is parallel to the other diagonal of the second sidewall; so that when the baffle switches from the first state to the first open state, the material in the common storage hopper can be introduced into the concrete crushing mechanism, and when the baffle switches from the second state to the second open state, the material in the common storage hopper can be introduced into the common crushing mechanism.

[0049] In the demolition waste co-processing method provided in this invention embodiment, when processing demolition waste, concrete waste can be processed first, followed by ordinary demolition waste, or the reverse order can be used. During the concrete waste processing, the first undersize material obtained from the primary concrete screening can be temporarily stored in the first storage hopper, awaiting centralized processing during the ordinary demolition waste processing, thereby avoiding separate processing of the first undersize material and saving energy. Similarly, during the ordinary demolition waste processing, the concrete portion removed from the ordinary demolition waste is temporarily stored in the second storage hopper, and processed together with the concrete waste during the concrete waste processing, again avoiding separate processing of the concrete portion and saving energy. Furthermore, the concrete waste processing step and the ordinary demolition waste processing step employ a common crushing mechanism and a common sorting mechanism, thereby reducing the total cost of the production line and the floor space occupied by the equipment. Attached Figure Description

[0050] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0051] Figure 1 A flowchart illustrating the dismantling of a waste co-processing equipment provided in an embodiment of the present invention;

[0052] Figure 2 This is a schematic diagram of the common storage hopper of the waste co-processing equipment being dismantled and divided by a first state, as provided in an embodiment of the present invention.

[0053] Figure 3 This is a schematic diagram of the common storage hopper of the waste co-processing equipment being dismantled and divided by a second state, as provided in an embodiment of the present invention.

[0054] Figure 4 This is a schematic diagram of a selective material flow separation device for dismantling waste co-processing equipment provided in an embodiment of the present invention.

[0055] Icons: 1-First sidewall; 2-Second sidewall; 3-Third sidewall; 4-Baffle; 5-Concrete crushing mechanism; 6-Common crushing mechanism; 7-Conveyor belt; 8-Photoelectric sensor; 9-Vision recognition system; 10-Robot arm. Detailed Implementation

[0056] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] like Figures 1-4 As shown in the embodiment of the present invention, the method for co-processing demolition waste provides that processes concrete waste or ordinary demolition waste simultaneously using a co-processing equipment for demolition waste. In the prior art, ordinary demolition waste and concrete waste are separated before entering the plant, and this process will not be described in detail.

[0058] The shared-line treatment method for demolition waste includes a concrete waste treatment step and a general demolition waste treatment step. One of these two steps must be performed before the other; that is, when processing demolition waste, concrete waste can be processed first, followed by general demolition waste, or vice versa. However, because a single piece of equipment is used, only one type of waste can be processed at a time.

[0059] The concrete waste treatment steps include:

[0060] Step SA1. Perform primary concrete screening on the concrete waste to obtain the first oversize material and the first undersize material with a particle size in the range of 0-30mm; and temporarily store the first undersize material in the first storage hopper.

[0061] The first sieve material in the 0-30mm range contains some impurities, including some small-diameter concrete particles. Because these concrete particles are small, they can be recycled by processing them together with ordinary demolition waste.

[0062] Step SA2. Crush the material on the first sieve once, and then classify and screen the crushed material to obtain the portion that meets the first particle size range and the portion that meets the second particle size range.

[0063] In this step, the material on the first sieve can be crushed to a particle size of less than 150 mm, wherein the first particle size range can be 31.5-150 mm and the second particle size range can be 0-31.5 mm.

[0064] Step SA3. The portion that meets the first particle size range is subjected to secondary crushing using the common crushing mechanism 6.

[0065] Only the portion within the first particle size range undergoes secondary grinding to further reduce the particle size to below 40 mm, preferably within the range of 0-31.5 mm. The portion within the second particle size range already meets the particle size requirements of this step and does not require secondary grinding; it is directly fed into the common sorting mechanism.

[0066] Step SA4. Use a common sorting mechanism to screen the product that has undergone secondary crushing in step SA3 and the portion that meets the second particle size range in step SA2, thereby obtaining multiple groups of concrete aggregates with different particle size ranges.

[0067] Public sorting facilities can separate materials into three categories: coarse, medium, and fine, and store them in concrete aggregate bins. The classification standards based on particle size can be: coarse: 10mm-31.5mm, medium: 5mm-10mm, fine: 0-5mm; or coarse: 15mm-31.5mm, medium: 7mm-10mm, fine: 0-7mm.

[0068] The routine demolition waste disposal steps include:

[0069] Step SB1. Separate the ordinary demolition waste to remove the concrete portion; and temporarily store the concrete portion in the second storage hopper; when proceeding to step SA2, crush the concrete portion together with the material on the first screen.

[0070] A selective material flow separation device can be used to separate the concrete portion. This device includes a vision recognition system 9, a conveyor belt 7, a photoelectric sensor 8, and a robotic arm 10. The conveyor belt 7 moves the ordinary demolition waste forward. When the photoelectric sensor 8 detects the arrival of the waste, the vision recognition system 9 is activated to identify the concrete portion within the ordinary demolition waste. The robotic arm 10 then picks up the concrete portion. The basic principle of the vision recognition system 9 is to acquire images, identify color blocks in the image, and find the portion that matches the color of concrete, thus selecting the concrete. Since the concrete portion in the ordinary demolition waste is relatively small and processing it separately would be time-consuming and labor-intensive, it can be temporarily stored in a second storage hopper and processed together with the concrete waste during the concrete waste disposal process.

[0071] Before step SB1, the following steps can be performed: pre-screening of ordinary demolition waste to remove reduced soil with a particle size <10mm as early as possible. The material remaining on the screen is fed to a selective material flow separator;

[0072] Step SB2. The ordinary demolition waste with the concrete removed is crushed once, and the light and metallic materials in the crushed products are removed to obtain the first product.

[0073] In this step, the ordinary demolition waste from removing the concrete part can be crushed first; then, light materials such as foam, plastic bags, and woven bags can be removed from the crushed products by manual sorting; finally, metal materials can be removed by magnetic separation mechanism to obtain the first product.

[0074] Step SB3. The first product is subjected to secondary crushing using the common crushing mechanism 6; and when the first undersize material is present in the first storage hopper, the first product and the first undersize material are subjected to secondary crushing using the common crushing mechanism 6; thereby obtaining the second product.

[0075] When the first hopper contains the first screened material, the first product and the first screened material are subjected to secondary crushing using the common crushing mechanism 6; thereby obtaining the second product, which can save energy.

[0076] Step SB4. Use a common sorting mechanism to screen the products that have undergone secondary crushing in step SB3, thereby obtaining brick and concrete aggregates with different particle size ranges.

[0077] The products that have undergone secondary crushing in step SB3 are screened using a public sorting mechanism to obtain brick and concrete aggregates with different particle size ranges. Then, the screened products are air-separated to remove light materials. The air-separated products are then color-separated, using a principle similar to the visual recognition system 9, to separate the brick and concrete by utilizing the color difference between them, thus obtaining brick and concrete aggregates with different particle size ranges.

[0078] The first and second storage hoppers are a common storage hopper. Before the concrete waste treatment step and the ordinary demolition waste treatment step, the following steps are included: detecting whether the product stored in the common storage hopper is the first undersize material or the concrete portion; when the product stored in the common storage hopper is the first undersize material, ordinary demolition waste treatment is performed first, starting from step SB3, and the product quantity in the common storage hopper is monitored in real time. When the quantity is zero, ordinary demolition waste treatment is performed according to steps SB1-SB4; when the product stored in the common storage hopper is the concrete portion, concrete waste treatment is performed first, and the concrete portion in the common storage hopper is first crushed, and the crushed first crushed material is graded and screened to obtain the portion that meets the first particle size range and the portion that meets the second particle size range; and the product quantity in the common storage hopper is monitored in real time. When the quantity is zero, concrete waste treatment is performed according to steps SA1-SA4.

[0079] To further reduce equipment costs and floor space, the first and second storage hoppers are combined into a single common storage hopper. At any given time, the common storage hopper contains only either concrete or the first screened material. A color sorting mechanism within the common storage hopper identifies whether the product is the first screened material or concrete. When the product in the common storage hopper is the first screened material, ordinary demolition waste processing is performed first, starting with step SB3, consuming the first screened material in the common storage hopper. The amount of first screened material in the common storage hopper is monitored in real time. When the amount is zero, ordinary demolition waste processing is performed according to steps SB1-SB4, at which point concrete is gradually poured into the common storage hopper. Conversely, when the product in the common storage hopper is concrete, concrete waste processing is performed first, and the concrete in the common storage hopper is first crushed to gradually empty the common storage hopper. The crushed material is then graded and screened to obtain portions that meet the first particle size range and portions that meet the second particle size range. The amount of concrete remaining in the common storage hopper is monitored in real time. When the amount reaches zero, concrete waste is processed according to steps SA1-SA4, and the common storage hopper is refilled with the first-screened material. This process is repeated continuously, allowing the storage of both types of materials in a single common storage hopper, reducing floor space and equipment costs.

[0080] This invention provides a device for removing shared waste lines, used to implement the above-described method for removing shared waste lines.

[0081] The specific equipment includes: a screening mechanism, a concrete crushing mechanism 5, a grading screening mechanism, a first storage hopper, a common crushing mechanism 6, a common sorting mechanism, a selective material flow separation device, a second storage hopper, a waste crushing mechanism, and a sorting mechanism;

[0082] During concrete waste processing, the screening mechanism performs primary concrete screening to obtain a first-screen oversize and a first-screen undersize with a particle size range of 0-30mm. The first-screen undersize is transported to a first storage hopper for temporary storage. The first-screen oversize is then transported to a concrete crushing mechanism 5. If there is concrete in the second storage hopper, this concrete is also transported to the concrete crushing mechanism 5, which performs a primary crushing of the first-screen oversize and the concrete in the second storage hopper. The product after primary crushing is transported to a grading and screening mechanism, which grades and screens the crushed material to obtain portions that meet the first particle size range and portions that meet the second particle size range. A common crushing mechanism 6 performs secondary crushing on the portion that meets the first particle size range. A common sorting mechanism screens the product from the common crushing mechanism 6 and the portion that meets the second particle size range, thereby obtaining multiple sets of concrete aggregates with different particle size ranges.

[0083] In the process of handling ordinary demolition waste, the selective material flow separation device is used to separate the ordinary demolition waste and remove the concrete portion. The removed concrete portion is transported to a second storage hopper, which is used to store the concrete portion. The waste crushing mechanism is used to crush the ordinary demolition waste after removing the concrete portion. The sorting mechanism is used to remove light and metallic substances from the crushed products, thereby obtaining a first product. The common crushing mechanism 6 can perform secondary crushing on the first product and / or the first undersize material. The common sorting mechanism can screen the second product, thereby obtaining brick and concrete aggregates with different particle size ranges. The specific implementation steps of the above equipment correspond to the steps in the method.

[0084] The first and second storage hoppers are a common storage hopper. A color sorting mechanism is installed inside the common storage hopper. The color sorting mechanism is used to identify whether the product stored in the common storage hopper is the first screen undersize material or the concrete part.

[0085] Color sorting systems can identify and differentiate the colors of bricks and concrete, thus allowing them to hold and release different types of waste at different disposal sites.

[0086] The common storage hopper includes a rectangular tube with openings at the top and bottom. The inlets of the concrete crushing mechanism 5 and the common crushing mechanism 6 are arranged side by side below the lower opening of the rectangular tube. The rectangular tube includes a first side wall 1, a second side wall 2, a third side wall 3, and a fourth side wall connected end to end. A baffle 4 is hinged between the second side wall 2 and the fourth side wall. The baffle 4 has rotating shafts on both sides that are rotatably connected to the second side wall 2 and the fourth side wall. The rotating shafts are located at the middle position along the length of the baffle 4, and a driving mechanism is connected to the rotating shafts. The length of the baffle 4 is equal to the length of the diagonal of the second side wall 2; the baffle 4 has a first state and a second state. In the first state, the baffle 4 is parallel to one diagonal of the second side wall 2; in the second state, the baffle 4 is parallel to the other diagonal of the second side wall 2; so that when the baffle 4 switches from the first state to the first open state, the material in the common storage hopper can be introduced into the concrete crushing mechanism 5, and when the baffle 4 switches from the second state to the second open state, the material in the common storage hopper can be introduced into the common crushing mechanism 6.

[0087] For example, the rectangular tube is vertical, and the concrete crushing mechanism 5 is located to the left of the common crushing mechanism 6. From top to bottom, the baffle 4 can be tilted to the left, with the baffle 4 abutting against the bottom edge of the first side wall 1, which is the first state. The first side wall 1, part of the second side, part of the fourth side wall, and the baffle 4 form a holding space that can hold concrete. When it is necessary to output concrete, the baffle 4 can be rotated using the drive mechanism to increase the distance between the baffle 4 and the bottom edge of the first side wall 1, causing the concrete to fall. The material enters the concrete crushing mechanism 5. After complete dumping, the baffle 4 continues to rotate, bringing it into contact with the bottom edge of the third side wall 3. From top to bottom, the baffle 4 tilts to the right. The third side wall 3, part of the second side wall, part of the fourth side wall, and the baffle 4 form a holding space capable of holding the first screened material. When it is necessary to discharge the first screened material, the drive mechanism can be used to rotate the baffle 4, increasing the distance between the baffle 4 and the bottom edge of the third side wall 3, allowing the first screened material to fall into the common storage hopper. During this process, the baffle 4 not only functions as a valve but also as a guide after opening.

[0088] 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 it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for dismantling and disposing of shared waste disposal lines, characterized in that, At the same time, concrete waste or ordinary demolition waste is processed using a shared demolition waste processing equipment, including a concrete waste processing step and an ordinary demolition waste processing step, wherein one of the concrete waste processing step and the ordinary demolition waste processing step is performed before the other. The concrete waste processing step includes: Step SA1. Perform primary concrete screening on the concrete waste to obtain the first oversize material and the first undersize material with a particle size in the range of 0-30mm; and temporarily store the first undersize material in the first storage hopper; Step SA2. The material on the first sieve is crushed once, and the crushed material is graded and screened to obtain the portion that meets the first particle size range and the portion that meets the second particle size range; Step SA3. The portion that meets the first particle size range is subjected to secondary crushing using a common crushing mechanism (6); Step SA4. Use a common sorting mechanism to screen the product that has undergone secondary crushing in step SA3 and the portion that meets the second particle size range in step SA2, thereby obtaining multiple groups of concrete aggregates with different particle size ranges. The routine demolition waste disposal steps include: Step SB1. Separate the ordinary demolition waste to remove the concrete portion; and temporarily store the concrete portion in the second storage hopper; when proceeding to step SA2, crush the concrete portion together with the material on the first screen. Step SB2. The ordinary demolition waste with the concrete removed is crushed once, and the light and metallic materials in the crushed products are removed to obtain the first product; Step SB3. The first product is subjected to secondary crushing using a common crushing mechanism (6); and when the first undersize material is present in the first storage hopper, the first product and the first undersize material are subjected to secondary crushing using the common crushing mechanism (6); thereby obtaining the second product. Step SB4. Use a common sorting mechanism to screen the products that have undergone secondary crushing in step SB3, thereby obtaining brick and concrete aggregates with different particle size ranges; The first and second storage hoppers are a common storage hopper; The following steps are included before the concrete waste disposal and general demolition waste disposal steps: To determine whether the product stored in the public storage hopper is the first screen undersize material or concrete; When the product stored in the public storage hopper is the first screened material, ordinary demolition waste treatment is carried out first, starting from step SB3, and the product inventory in the public storage hopper is monitored in real time. When the inventory is zero, ordinary demolition waste treatment is carried out according to steps SB1-SB4. When the product stored in the public storage hopper is concrete, concrete waste treatment is carried out first. The concrete in the public storage hopper is first crushed, and the crushed material is graded and screened to obtain the part that meets the first particle size range and the part that meets the second particle size range. The product inventory in the public storage hopper is monitored in real time. When the inventory is zero, concrete waste treatment is carried out according to steps SA1-SA4.

2. The method for dismantling and treating shared waste lines according to claim 1, characterized in that, In step SB1, the specific steps for separating ordinary demolition waste are as follows: using a visual recognition system (9) to identify the concrete part in the ordinary demolition waste, and then using a robotic arm (10) to grab the concrete part.

3. The method for dismantling and treating shared waste lines according to claim 1, characterized in that, Step SB4 specifically includes: Step SB41. Use a common sorting mechanism to screen the product that underwent secondary crushing in step SB3; Step SB42. Perform air separation on the screened product to remove impurities and light substances; Step SB43. Perform color sorting on the product after air separation to separate brick and concrete by utilizing the color difference between the two, and obtain brick aggregate and concrete aggregate.

4. The method for dismantling and treating shared waste lines according to claim 1, characterized in that, Step SB2 specifically includes: Step SB21. Crush the ordinary demolition debris from the concrete removal section once; Step SB22. Remove light materials from the crushed products by manual sorting; Step SB23. Remove the metallic substances using a magnetic separation mechanism to obtain the first product.

5. A device for dismantling waste collection lines, characterized in that, Used to implement the method for handling dismantling waste along the same line as described in any one of claims 1-4.

6. The equipment for dismantling waste distribution lines according to claim 5, characterized in that, include: Screening mechanism, concrete crushing mechanism (5), grading screening mechanism, first storage hopper, public crushing mechanism (6), public sorting mechanism, selective material flow separation device, second storage hopper, garbage crushing mechanism, sorting mechanism; The screening mechanism is used to perform primary concrete screening on concrete waste, thereby obtaining the first oversize material and the first undersize material with a particle size in the range of 0-30mm. The first storage hopper is used to temporarily store the first screened material; The concrete crushing mechanism (5) is used to crush the material on the first screen and / or the concrete portion in the second storage hopper in one step. The grading and screening mechanism is used to grade and screen the first crushed material after crushing to obtain a portion that meets the first particle size range and a portion that meets the second particle size range. The common crushing mechanism (6) is capable of performing secondary crushing on the portion that meets the first particle size range; The common sorting mechanism can screen the products crushed by the common crushing mechanism (6) and the portion that meets the second particle size range, thereby obtaining multiple groups of concrete aggregates with different particle size ranges. The selective material flow separation device is used to separate ordinary demolition waste and remove the concrete portion from it. The second storage hopper is used to store the concrete portion; The waste crushing mechanism is used to crush ordinary demolition waste, from which the concrete has been removed, in one step. The sorting mechanism is used to remove light and metallic substances from the crushed products, thereby obtaining the first product; The common crushing mechanism (6) can also perform secondary crushing on the first product and / or the first undersize material; The public sorting mechanism can also screen the second product to obtain brick and concrete aggregates with different particle size ranges.

7. The equipment for dismantling waste distribution lines according to claim 6, characterized in that, The selective material flow separation device includes a conveyor belt (7), a vision recognition system (9), and a robot (10). The conveyor belt (7) is used to transport ordinary demolition waste, the vision recognition system (9) identifies the concrete portion in the ordinary demolition waste, and the robot (10) grabs the concrete portion.

8. The equipment for dismantling waste distribution lines according to claim 6, characterized in that, The first and second storage hoppers are a common storage hopper. A color sorting mechanism is installed inside the common storage hopper. The color sorting mechanism is used to identify whether the product stored in the common storage hopper is the first screen undersize material or the concrete part.

9. The equipment for dismantling waste distribution lines according to claim 8, characterized in that, The common storage hopper includes a rectangular tube with openings at the top and bottom. The feed inlets of the concrete crushing mechanism (5) and the common crushing mechanism (6) are arranged side by side below the lower opening of the rectangular tube. The rectangular tube includes a first side wall (1), a second side wall (2), a third side wall (3), and a fourth side wall connected end to end. A baffle (4) is hinged between the second sidewall (2) and the fourth sidewall. The baffle (4) has a rotating shaft on both sides that is rotatably connected to the second sidewall (2) and the fourth sidewall. The rotating shaft is located at the middle position in the length direction of the baffle (4). A driving mechanism is connected to the rotating shaft. The length of the baffle (4) is equal to the length of the diagonal of the second side wall (2); the baffle (4) has a first state and a second state. In the first state, the baffle (4) is parallel to one diagonal of the second side wall (2); in the second state, the baffle (4) is parallel to the other diagonal of the second side wall (2); so that when the baffle (4) switches from the first state to the first open state, the material in the common storage hopper can be introduced into the concrete crushing mechanism (5), and when the baffle (4) switches from the second state to the second open state, the material in the common storage hopper can be introduced into the common crushing mechanism (6).

Citation Information

Patent Citations

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