Solid waste in-situ collection and recovery device based on municipal hole opening demolition construction and construction process thereof

Abstract

The application discloses a kind of solid waste in situ collection and recovery device and construction technology based on municipal hole opening breaking construction, it is related to municipal public facilities operation and maintenance technical field, the device includes the load-bearing frame of top open, setting in load-bearing frame and top open and stay barrel and the extension wing of annular array distribution, the extension wing can be retracted and set in load-bearing frame top, one end extends towards the open part of stay barrel, the other end of the extension wing is located below hole opening, filter device is arranged in the stay barrel, the filter device will stay barrel internal space be divided into the stay cavity located above and the filtrate cavity located below.Solid waste in situ collection and recovery construction technology includes: load-bearing frame is hung and fixed below hole opening, extension wing covers hole opening, guides waste to slide into stay barrel and separates, takes out device and handles solid waste.The device and construction technology can efficiently recover breaking object and prevent falling into well and affect municipal public pipeline function.

Description

Technical Field

[0001] This invention relates to the field of municipal utility operation and maintenance technology, and more specifically, to a solid waste in-situ collection and recycling device and its construction process based on municipal tunnel opening demolition construction. Background Technology

[0002] Construction projects and urban maintenance often involve work at openings near the manholes, posing risks of waste pollution and personnel safety when working inside. During the maintenance and repair of municipal drainage networks or underground pipelines for electricity and communications, it is sometimes necessary to dismantle or replace the manhole frame and surrounding structure. In this case, the manhole opening is completely open, and during the demolition and flushing process around the opening, debris can easily fall into the manhole, sometimes damaging pipelines or affecting the functionality of the municipal network. Afterwards, it requires considerable effort to remove the solid debris from the manhole. Current methods for collecting solid debris mostly involve bolting multiple bolts into the manhole's inner wall and sealing the manhole with plates and filter cloth to prevent debris from falling in. While this method achieves solid-liquid separation and solid waste retention, after the work at the manhole opening is completed, workers must enter the manhole to manually remove the solid waste and dismantle the interception device. Therefore, current municipal manhole demolition work presents the following problems: 1. Low construction efficiency, complex process, limited installation space inside the well, and time-consuming and labor-intensive recycling and cleaning process; 2. Current interception devices are set up on-site according to the specific dimensions of each individual well, requiring separate setup and design for each unit. This results in high material consumption, inability to reuse the entire device, low adaptability, and high construction costs. Furthermore, this interception device mainly recovers large solids, while liquids and fine particles are easily lost and fall into the well, resulting in a low overall recovery rate. 3. High safety risks: The installation of interception devices and solid waste recycling operations must be carried out inside the well, which poses risks of suffocation in the confined space, poison gas injury, and falls.

[0003] Therefore, there is an urgent need to propose a new technical solution to solve this problem. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a device and construction process for in-situ collection and recycling of solid waste based on municipal tunnel opening demolition construction.

[0005] The technical solution of this invention is: A solid waste in-situ collection and recycling device based on municipal tunnel opening demolition construction includes a top-open load-bearing frame, a retention bin set inside the load-bearing frame and also open at the top, and several extension wings arranged in a circular array. The extension wings are retractable and set on the top of the load-bearing frame. The projection of one side edge of the extension wing onto the upper plane of the load-bearing frame is always inside the upper opening of the load-bearing frame. The load-bearing frame is suspended below the tunnel opening. The end of the extension wing away from the retention bin is located below the tunnel opening. The retention bin is equipped with a filter device for solid-liquid separation.

[0006] The present invention is further configured such that the retention bucket adopts a bucket body without holes around the circumference, and the wastewater containing solid impurities generated during construction is filtered by a filtration device and then collected and recycled.

[0007] The present invention is further configured such that the outer peripheral wall or bottom of the indwelling bucket is provided with a filter hole for the waste liquid to flow out.

[0008] The present invention is further configured such that the filtration device divides the internal space of the indwelling bucket into an upper indwelling chamber and a lower filtrate chamber, and a drain pipe is connected to the indwelling bucket at the filtrate chamber. The drain pipe can be connected to a pump body for negative pressure suction of the liquid in the filtrate chamber.

[0009] The present invention is further configured such that the extended wing includes a skeleton and a wing membrane covering the skeleton, the skeleton constituting a support structure for the extended wing, and in the extended wing deployed state, the projection of the skeleton is located within the wing membrane, and the projection of the wing membrane on the horizontal plane completely covers the projection of the opening boundary.

[0010] The invention is further configured such that the frame is hinged to the top of the load-bearing frame, so that the extension wing can be extended outward or retracted inward. In the extended state, the end of the extension wing away from the retention bucket abuts against the well wall inside the cave.

[0011] The invention is further configured such that, in the fully extended state, there is a gap between the end of the extended wing away from the retention bucket and the inner wall of the opening, and a movable limiting member is provided at the top of the load-bearing frame near the frame of the extended wing to limit the maximum extension angle of the extended wing.

[0012] The present invention is further configured such that the skeleton is provided with multiple or multiple groups, and a single group, multiple groups or multiple groups of skeletons can be connected to and covered by the same wing membrane.

[0013] The present invention is further configured such that the skeleton is detachably connected to the top of the load-bearing frame.

[0014] The invention is further configured to include a suspension assembly for suspending the load-bearing frame below the opening. The suspension assembly includes a suspension member, a sling, and a rigging. The suspension member is located at the opening. The top end of the sling is sleeved on the suspension member via a rigging, and the bottom end is connected to the load-bearing frame. The length of the sling is adjustable.

[0015] The invention is further configured such that the number of the suspension components is set to multiple and they are independently fixed to the opening in pairs or groups, with a gap between adjacent suspension components.

[0016] The invention is further configured such that the suspension member is a single unit and is fixed across the opening.

[0017] The technical solution of this invention is also a construction process based on the demolition of municipal openings, including: Step 1: Hoist the load-bearing frame below the opening so that the indwelling bucket is located inside the load-bearing frame. Extend the extended wings, which are arranged in a ring at the top of the load-bearing frame, to the inside of the opening of the indwelling bucket, so that several extended wings are spread outward and the outer edge of the wing membrane is located outside the boundary of the opening. Step 2: During the opening demolition and cleaning operation, the solid-liquid mixture that fell into the opening landed on the upper surface of the extension wing and slid into the retention bucket; Step 3: The solid-liquid mixture is filtered and collected in the retention bucket through a filter device. Solid impurities are trapped in the retention chamber by the filter device, while liquid passes through the filter device into the filtrate chamber and can be discharged through the holes or collected for recycling. Step 4: After construction is completed, retract the extension wing inward, lift the entire device out of the opening, clean the waste trapped in the retention bucket, and recycle the device or transfer it to the next working face.

[0018] The beneficial technical effects of this invention are: The load-bearing frame is suspended below the opening via a suspension assembly. Combined with deployable extension wings, this forms a flexible protective receiving surface covering the opening, efficiently receiving, separating, and recycling demolition waste. Furthermore, it solves safety issues for construction workers entering the well, such as suffocation in enclosed spaces, toxic gas injuries, and falls. Simultaneously, the device is fixed to the ground across the suspension assembly, allowing for quick installation and removal without the need for bolts to the opening wall, thus avoiding damage to the original opening structure and significantly improving construction efficiency.

[0019] The solid-liquid mixture falling into the retention tank is automatically separated through a built-in filter screen. Solid impurities are trapped in the retention chamber, while the liquid seeps into the filtrate chamber and is discharged through the filter holes, avoiding the hassle of manual retrieval afterward. Combined with negative pressure suction from the pump, liquid discharge is accelerated, improving the proactive nature of wastewater treatment.

[0020] The extension wing adopts a frame and membrane structure and is designed to be retractable. It unfolds to cover the opening during construction and retracts for easy removal after construction. Through the height adjustment of the suspension components, the unfolding angle adjustment of the extension wing, and the adjustable length of the suspension components, the device can flexibly adapt to openings of different sizes and shapes, making it highly versatile.

[0021] The device has a simple structure, mainly composed of a load-bearing frame, a retention bin, and an extension wing. It has a low cost, and the wing membrane is made of flexible material, which is easy to replace and clean. The retention bin is set up independently, which is convenient for dumping solid waste.

[0022] The construction process of combining the in-situ collection and recycling device at the tunnel entrance can improve construction efficiency, achieve the goal of clearing materials and cleaning the site after the work is completed, effectively improve the energy-saving and environmental protection goals of construction, and eliminate multiple safety risks of traditional tunnel entrance operations. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the fully deployed working state of the present invention; Figure 2 This is a schematic diagram of the working state of the wall-contacting device of the present invention; Figure 3 This is a structural schematic diagram of the load-bearing frame according to Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the load-bearing frame in Embodiment 2 of the present invention; Figure 5 This is a schematic diagram of the receiving bucket according to Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the receiving bucket according to Embodiment 2 of the present invention; Figure 7 This is a schematic diagram of the receiving bucket according to Embodiment 3 of the present invention; Figure 8 This is a schematic diagram of the construction process of the present invention.

[0024] In the diagram, 1. Suspension component; 2. Load-bearing frame; 21. Grid bottom; 22. Annular frame top; 23. Support rib; 24. Fixed limiting component; 3. Indwelling bucket; 31. Lifting ring; 32. Filter device; 33. Indwelling chamber; 34. Filtration chamber; 4. Extension wing; 41. Frame; 42. Wing membrane; 43. Movable limiting component; 44. Limiting ring; 45. Elastic buckle; 5. Lifting cable; 51. Lock; 6. Sling; 7. Drainage pipe; 71. Pump body; 8. Rigging; 9. Well wall. Detailed Implementation

[0025] In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] Example 1, as Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 8 As shown.

[0027] A solid waste in-situ collection and recycling device based on municipal tunnel opening demolition construction includes a load-bearing frame 2, a retention bucket 3, several extension wings 4, and a suspension assembly.

[0028] The suspension assembly of this device consists of a suspension member 1, slings 6, and rigging 8. The suspension member 1 can be a single piece, made of galvanized threaded steel or round steel with a diameter of not less than Φ20mm, possessing sufficient bending strength, and spanning across the opening. The suspension member 1 can also be a two- or three-section sleeve structure, with stepless or graded length adjustment between 1.2 meters and 2.0 meters via pin holes or screw adjustments to accommodate common opening widths. Rigging 8 is typically made of round steel with a diameter of not less than Φ6mm, bent at the end into a closed or locking loop. The upper end of the sling 6 is fastened to rigging 8, allowing it to loosely fit onto the suspension member 1 and slide easily along the axial direction of the suspension member 1, facilitating precise adjustment of the lateral position of the load-bearing frame 2 during installation. The lower end of the sling 6 can be directly tied to the top of the load-bearing frame 2, or it can be hooked to a hanging ring on the load-bearing frame 2. Typically, a device is equipped with 3-4 slings 6 to evenly distribute the weight.

[0029] The core of the main unit for bearing and collecting materials is the load-bearing frame 2 and the retention bucket 3. The load-bearing frame 2 is the load-bearing skeleton of the entire device. It is made of round steel or threaded steel welded together to form a sturdy metal grid frame structure. After calculation and testing, its overall load-bearing capacity is not less than 200 kg, which is sufficient to withstand heavy tools or blocks that are accidentally dropped. Its structure is specifically divided into three parts: First, the grid bottom 21, which is usually made of a circular steel bar outer ring and steel bars welded together in a grid shape. The side length of the mesh can be 5-10 cm, which reduces the weight and ensures the bottom permeability; Second, the circular frame top 22, which is a complete steel bar ring. The diameter of the ring of the frame top 22 is greater than or equal to the diameter of the circular steel bar outer ring of the grid bottom; Third, the vertical support bars 23, usually 8-24 in number, are evenly distributed and connected to the circular steel bar outer ring of the grid bottom 21 and the circular frame top 22, so that the circular frame top 22 becomes a rigid ring structure at the top of the load-bearing frame 2; The height of the vertical support bars 23 determines the depth of the recess, which is generally designed to be 30-70 cm; The grid bottom 21, the ring frame top 22 and the support bars 23 together form a "frame" type recess with an open top. The retention tank 3 is placed in the receiving recess of the load-bearing frame 2. The retention tank 3 is equipped with a filter screen, which divides the internal space of the retention tank 3 into an upper retention chamber and a lower filtrate chamber. A liquid flow hole is opened at the bottom of the tank or the lowest point of the outer wall. This liquid flow hole can discharge the filtered wastewater from the tank by gravity overflow. A drain interface with a valve can also be installed at the filter hole. This interface is connected to a pressure-resistant transparent PVC hose as a drain pipe 7. The other end of the drain pipe 7 is connected to a portable manual diaphragm pump or a small electric submersible pump 71. The pump body 71 is placed on the ground outside the wellhead and uses negative pressure suction to discharge the wastewater. Its outlet can be connected to a sewage collection tanker or a temporary sedimentation tank to avoid environmental pollution. The upper edge of the retention tank 3 is rolled outward and lined with round steel to form a reinforcing edge. Two flip-up lifting rings 31 are symmetrically set on the top for easy lifting and transportation with hooks. The outer diameter of the indwelling bucket 3 is slightly smaller than the inner diameter of the recess that the load-bearing frame 2 accommodates, so it can be easily put in and taken out. Its height is usually slightly lower than the height of the support rib 23, ensuring that it is completely within the protection of the "load-bearing frame".

[0030] Multiple extension wings 4 are arranged in a ring array at the top of the load-bearing frame 2, their number typically matching the number of vertical support ribs 23. Each extension wing 4 comprises a steel frame 41 welded together and a PVC-coated fiber cloth, or wing membrane 42, sewn onto all the frames 41. The center of the inner arc edge of the frame 41 is hinged to both sides of the support ribs 23 of the ring top 22 via a pair of high-strength circular rings, allowing it to rotate freely within a certain angle range along the vertical plane around the hinge point, much like a door. A crucial physical limiting device—a movable limiting element 43—is located at the hinge point. This is typically a short steel bar welded to the inner side of the frame 41 near the hinge point. As the frame 41 unfolds outward, the movable limiting element 43 rotates until one side abuts against the support rib 23, mechanically preventing the frame 41 from unfolding further. By designing the welding angle of the movable limiting element, the maximum tilt angle of the receiving surface can be precisely limited to an optimal value between 15° and 120°, ensuring that waste can slide off smoothly while avoiding over-expansion that could lead to structural instability. The wing membrane 42 is made of high-strength PVC-coated fiber cloth or waterproof Oxford cloth and is firmly fixed to the upper surface of the frame 41 using straps, stitching, or hook and loop fasteners. The radial dimension of the wing membrane 42 is slightly larger than that of the frame 41, and its inner edge extends by an additional section (about 5-30 cm) to form a flexible guide tongue. When the device is installed, this guide tongue hangs down naturally and extends into the mouth of the retention bucket 3 inside the load-bearing frame 2, ensuring that all slipping objects are guided into the retention bucket 3 without exception. In the extended wing 4 state, the projection of the wing membrane on the horizontal plane completely covers the horizontal projection of the opening. Its coverage area can catch waste falling from any position of the opening and prevent waste from leaking out from the gap between the edge of the wing membrane and the inner peripheral wall of the opening, further ensuring the catch-up effect.

[0031] To enable rapid deployment and recovery, a limiting ring 44 with an inner diameter of approximately Φ6mm is welded to the outer arc end of each frame 41. A flexible lifting cable 5 passes sequentially through the limiting rings 44 on all the extension wings. The two ends of the lifting cable 5 converge after passing through and extend upwards into an opening to form the operating end. An adjustment and locking mechanism is installed on the operating end; in this embodiment, a locking latch 51 is used in conjunction with a bolt. During deployment, the bolt of the locking latch 51 is loosened, and the operating end of the lifting cable 5 is slowly released downwards. Each extension wing begins to swing outwards and unfold under its own weight or a slight external force until it is locked by the moving limiting member 43. At this point, the lifting cable 5 is tightened, the locking latch 51 is slid to a position close to the limiting ring 44, and then the bolt is tightened to lock the slack section of the lifting cable 5. The lifting cable 5 then transforms from a "control cable" into a "locking clamp," preventing the extension wings from accidentally springing back and closing when impacted by debris. During the retraction operation, after construction is completed, loosen the bolts and lift the operating end of the lifting cable 5 upwards. The lifting cable 5 will pull the outer ends of all the extension wings 4 towards the center, minimizing the radial projection size of the device and facilitating its removal from the opening. The workflow of this embodiment one completely corresponds to the aforementioned method steps. The various units of the device work together to achieve efficient and safe protection and waste collection in general opening scenarios.

[0032] A construction technique for in-situ collection and recycling of solid waste based on municipal tunnel opening demolition, such as... Figure 8 As shown, it includes: Step 1: Device Installation. Adjust the length of the suspension component 1 according to the width of the opening, and fix the suspension component 1 horizontally across the ground on both sides of the opening. Secure the upper end of the sling 6 to the suspension component 1 using the rigging 8, allowing for appropriate adjustment to select the optimal bearing point, ensuring the load-bearing frame 2 is suspended horizontally at the center of the opening. Connect the lower end of the sling 6 to the annular top 22 of the load-bearing frame 2 via a locking buckle, thus suspending the load-bearing frame 2 directly below the opening. Place the retention bucket 3 into the receiving recess of the load-bearing frame 2, ensuring its stable placement. Then, extend each extension wing 4 outwards. When the cross-sectional area of ​​the extension wing 4 at its maximum extension angle is smaller than the dimensions inside the well, its limiting component 43 restricts further extension; when the cross-sectional area of ​​the extension wing 4 at its maximum extension angle is larger than the dimensions inside the well, the outer peripheral wall of the extension wing 4 contacts the inner wall of the well, using the inner wall of the well to restrict further extension and ensure the extension wing 4 is tightly attached to the inner wall of the well. At this point, the wing membrane 42 of each extension wing 4 forms an inclined receiving surface, covering the annular area below the opening, and the inner edge of each wing membrane 42 extends to the open portion of the retention container 3. The end of the extension wing 4 furthest from the retention container 3 is in close contact with the inner wall of the opening, ensuring that waste does not leak from the edge. Check the deployment status of each extension wing 4, and make minor adjustments if necessary to ensure complete coverage.

[0033] Step Two: During the opening demolition and cleaning operation, the solid-liquid mixture that falls into the opening will land on the upper surface of the extension wing 4 and slide into the retention bucket 3. For small particles that cannot fall naturally, one or a combination of the following two methods will be used to get them into the retention bucket 3: Air sweeping method: Use a blower or compressed air spray gun to blow the fine particles scattered on the surface around the hole into the hole, so that they fall onto the extension wing 4 and slide along the wing membrane 42 into the retention chamber 33 of the retention bucket 3.

[0034] Water flushing method: Use a high-pressure water gun or hose to flush the surface of the hole, flushing fine particles into the hole with the water flow. The solid-liquid mixture falls into the retention bucket 3 together. This method is particularly suitable for scenarios where subsequent flushing operations are required, and can complete solid waste collection and preliminary cleaning in one go.

[0035] Step 3: Solid-liquid separation. The solid-liquid mixture falling into the retention chamber 33 is separated by gravity. The liquid portion passes through the filter screen 32 and enters the filtrate chamber 34, while the solid impurities are retained in the retention chamber 33 by the filter screen 32. The liquid entering the filtrate chamber 34 is continuously discharged through the filter holes by its own weight, flowing to a designated drainage system or collection container. If a large amount of liquid is generated during construction and the overflow rate is insufficient, the filter hole 35 can be connected to the pump body 71 through the drain pipe 7. The pump body 71 can be started to perform negative pressure suction, quickly emptying the filtrate chamber 34 and preventing liquid from overflowing from the top of the retention tank 3. During collection, the accumulation of solid impurities in the retention chamber 33 can be observed periodically. When it reaches approximately 80% of its capacity, the retention tank 3 can be removed using the lifting ring 31 and replaced with an empty retention tank 3 to ensure continuous operation. The replaced retention tank 3 can be used to dispose of solid impurities nearby or for centralized treatment.

[0036] Step Four: Device Retrieval. After all the opening demolition and surface cleaning work is completed, and it is confirmed that the device is no longer needed, the retrieval operation is carried out. First, operate the lifting cable 5 to retract each extension wing 4 inward, so that the frame 41 drives the wing membrane 42 to fold close to the top of the indwelling tank 3. Then, disconnect the connection between the lifting cable 6 and the suspension component 1, or directly lift the entire device out of the opening and place it on the ground using the lifting cable 6. Separate the load-bearing frame 2 from the indwelling tank 3, remove the indwelling tank 3, clean the solid debris trapped in the indwelling cavity 33, and rinse all parts of the device with clean water to remove residual dirt. Gather all parts and prepare for use.

[0037] Example 2, as Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 8 As shown.

[0038] The difference from Embodiment 1 is that a pair of elastic clamps 45 are welded to the center of the inner arc edge of the frame 41. The core of this mounting base is a high-strength engineering plastic or metal "C"-shaped elastic clamp 45. The inner wall of the elastic clamp 45 may have anti-slip serrations, and its natural "C"-shaped opening has an inner diameter slightly smaller than the outer diameter of the reinforcing bar of the annular frame top 22 on the load-bearing frame 2. Using the elastic clamp 45, the frame 41 is detachably connected to the top of the load-bearing frame 2. During on-site installation, the operator slightly widens the opening of the elastic clamp 45 by hand and then forcefully inserts it into the corresponding position on the annular frame top 22; or the "C"-shaped opening of the elastic clamp 45 is pressed against the annular frame top 22 to insert it. Due to the elastic recovery force of the elastic clamp 45 material, it can "hold" the annular frame top 22, forming a reliable connection. To further prevent detachment under severe impact, mating holes can be designed on both sides of the opening of the elastic clamp 45, into which a quick-release pin can be inserted or a wing screw can be screwed in for secondary locking. This design offers several advantages: First, it achieves ultimate convenience in transportation and storage. The extension wing 4 can be detached and stacked separately from the load-bearing frame 2 and the storage bucket 3, greatly reducing the space occupied during transportation and in warehouses, making it particularly suitable for carrying in narrow city alleys or vehicle trunks. Second, it enables efficient maintenance and replacement. If the wing membrane 42 is scratched by a sharp object or severely contaminated, only the extension wing 4 needs to be removed for replacement or cleaning, eliminating the need to bring the bulky entire device back to the workshop, saving significant time and labor costs. Third, it provides configuration flexibility, allowing for quick replacement with different sizes or curvatures for openings of special dimensions or shapes. The extension wing module can be modified, and the number of components can be increased or decreased to achieve a more refined adaptation. In this example, in order to limit the maximum unfolding angle of the extension wing 4, a fixed limiting member 44 extending outward at an angle can be welded to the top of the load-bearing frame 2. The cross section of the fixed limiting member 44 can be annular, and the top of the load-bearing frame 2 and the fixed limiting member 44 can be funnel-shaped. Alternatively, the fixed limiting member 44 can be a single column, and multiple fixed limiting members can be arranged in a ring array on the top of the load-bearing frame 2. When the extension wing 4 is fully unfolded, the frame 41 abuts against the fixed limiting member 44, and the fixed limiting member 44 provides support to the frame 41 to limit its maximum opening and closing angle.

[0039] The other parts of this embodiment, such as the suspension unit, the load-bearing frame 2, the retention bucket 3, and the control method of the lifting cable 5, are the same as those in Embodiment 1. The only difference in the construction process is the addition of the "installation of the extension wing" step in step one and the "disassembly of the extension wing" step in step four.

[0040] Example 3, as Figure 7As shown, the difference from Embodiment 1 is that the retention bucket 3 is a collection bucket without holes around its circumference. The collection bucket can be made of transparent material. Several annular grooves are arranged in an axial array on the inner circumferential wall of the retention bucket 3. The filter device is an elastic filter screen, which can be detachably installed in the annular grooves inside the retention bucket 3 by fitting. The solid waste mixture generated during construction is filtered by the filter device and collected in the bucket. The difference in the construction process in step four is that the retention bucket 3 is taken out, all the collected waste is poured into the garbage pit, the filter device is removed, and the precipitated solid particles in the filtrate chamber are also poured out, thus completing the cleaning of the retention bucket 3 for the next use.

[0041] Example 4, as Figure 2 As shown, the difference from Embodiment 1 is that the number of suspension components 1 is set to multiple, specifically two symmetrically arranged at the opening, or more than two, grouped and distributed in a circular array at the opening. Adjacent suspension components 1 are independently set with a gap, and the cross-section of the suspension component 1 is L-shaped, and the end can be implanted at the opening by means of expansion screws; specifically, the end of the suspension component 1 can be set on the ground outside the opening, and the other end can extend to the top of the opening.

[0042] The above embodiments can be freely combined to form high-end models that meet different needs.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A device for in-situ collection and recycling of solid waste during municipal tunnel opening demolition construction, characterized in that: It includes a top-open load-bearing frame (2), a retention bucket (3) set inside the load-bearing frame (2) and also open at the top, and several extension wings (4) arranged in a circular array. The extension wings (4) can be retracted and set on the top of the load-bearing frame (2). The projection of one side edge of the extension wing (4) onto the upper plane of the load-bearing frame (2) is always inside the upper opening of the load-bearing frame (2). The load-bearing frame (2) is suspended below the opening. The end of the extension wing (4) away from the retention bucket (3) is located below the opening. The retention bucket (3) is equipped with a filter device (32) for solid-liquid separation.

2. The solid waste in-situ collection and recycling device based on municipal tunnel demolition construction as described in claim 1, characterized in that: The retention bucket (3) has a bucket body without holes around the bucket. Wastewater containing solid impurities generated during construction is filtered by a filtration device (32) and then collected in a centralized manner.

3. The solid waste in-situ collection and recycling device based on municipal tunnel opening demolition construction as described in claim 1, characterized in that: The outer peripheral wall or bottom of the retention bucket (3) is provided with a filter hole for the waste liquid to flow out.

4. The solid waste in-situ collection and recycling device based on municipal tunnel opening demolition construction as described in claim 1, characterized in that: The filtration device (32) divides the internal space of the indwelling bucket (3) into an upper indwelling chamber (33) and a lower filtrate chamber (34). A drain pipe (7) is connected to the indwelling bucket (3) at the filtrate chamber (34). The drain pipe (7) can be connected to a pump body (71) for negative pressure suction of the liquid in the filtrate chamber (34).

5. The solid waste in-situ collection and recycling device based on municipal tunnel demolition construction as described in claim 1, characterized in that: The extended wing (4) includes a frame (41) and a wing membrane (42) covering the frame (41). The frame (41) constitutes the support structure of the extended wing (4). When the extended wing (4) is deployed, the projection of the frame (41) is located inside the wing membrane (42), and the projection of the wing membrane (42) on the horizontal plane completely covers the projection of the opening boundary.

6. The solid waste in-situ collection and recycling device based on municipal tunnel demolition construction as described in claim 5, characterized in that: The frame (41) is hinged to the top of the load-bearing frame (2), so that the extension wing (4) can be extended outward or retracted inward. In the extended state, the end of the extension wing (4) away from the retention bucket (3) abuts against the inner wall of the hole.

7. The solid waste in-situ collection and recycling device based on municipal tunnel demolition construction as described in claim 5, characterized in that: When the extension wing (4) is fully extended, there is a gap between the end of the extension wing (4) away from the retention bucket (3) and the well wall (9) inside the opening. The top of the load-bearing frame (2) near the frame (41) of the extension wing (4) is provided with a moving limiter to limit the maximum extension angle of the extension wing (4).

8. The solid waste in-situ collection and recycling device based on municipal tunnel opening demolition construction as described in claim 5, characterized in that: The skeleton (41) is provided in multiple or multiple groups, and a single group, multiple groups or multiple groups of skeletons (41) can be connected to and covered by the same wing membrane (42).

9. The solid waste in-situ collection and recycling device based on municipal tunnel opening demolition construction as described in claim 5, characterized in that: The frame (41) is detachably connected to the top of the load-bearing frame (2).

10. The solid waste in-situ collection and recycling device based on municipal tunnel opening demolition construction as described in claim 1, characterized in that: It also includes a suspension assembly for suspending the load-bearing frame (2) below the opening. The suspension assembly includes a suspension member (1), a sling (6), and a rigging (8). The suspension member (1) is located at the opening. The top end of the sling (6) is sleeved on the suspension member (1) through the rigging (8), and the bottom end is connected to the load-bearing frame (2). The length of the sling (6) is adjustable.

11. The solid waste in-situ collection and recycling device based on municipal tunnel opening demolition construction as described in claim 10, characterized in that: The number of the suspension components (1) is set to multiple and they are independently fixed to the opening in pairs or groups, with a gap between adjacent suspension components (1).

12. The solid waste in-situ collection and recycling device based on municipal tunnel opening demolition construction as described in claim 10, characterized in that: The suspension component (1) is a single unit and is fixed across the opening.

13. A construction process based on the demolition of municipal tunnel entrances, used in the application of the solid-liquid separation device according to any one of the claims, characterized in that: Step 1: Hang the load-bearing frame (2) below the opening so that the retention bucket (3) is located inside the load-bearing frame (2), and extend the inner side of the extension wing (4) membrane of the extension wing (4) arrayed in a ring on the top of the retention bucket (3) to the inner side of the opening of the retention bucket (3), so that several extension wings (4) unfold outward, and the outer edge boundary of the wing membrane (42) is located outside the boundary of the opening; Step 2: During the opening demolition and cleaning operation, the solid-liquid mixture that fell into the opening landed on the upper surface of the extension wing (4) and slid into the retention bucket (3); Step 3: The solid-liquid mixture is filtered and collected in the retention bucket (3) by the filter device (32). The solid impurities are trapped in the retention chamber (33) by the filter device (32), and the liquid passes through the filter device (32) into the filtrate chamber (34), which can be discharged through the holes or collected for recycling. Step 4: After the construction is completed, the extension wing (4) is folded inward, the entire device is lifted out of the opening, the waste trapped in the retention bucket (3) is cleaned up, and the device is recycled or transferred to the next working face.

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