Equipment, methods and new materials for recycling and backfilling solid waste from early civil air defense projects

Abstract

The present invention discloses equipment, methods and new materials for recycling and backfilling of solid waste from early civil air defense projects, and relates to the technical field of backfill equipment, including a mixing tank, a backfill unit configured at the discharge end of the mixing tank extending to the interior of the solid waste from underground civil air defense projects; the backfill unit includes a backfill pipeline extending to the interior of the solid waste from underground civil air defense projects, the interior of the backfill pipeline includes at least one spiral blade for conveying solid waste slurry, the upper part of the spiral blade is configured with a drive unit for driving the spiral blade to rotate; an extendable component is configured at the bottom of the spiral blade, the extendable component is configured with a plurality of guide rods extending outward, the guide rods extend outward, and one end of the guide rods extending outward is configured with a vibrating component. When backfilling is performed, the present application extends the backfill pipeline to the interior of the solid waste from underground civil air defense projects, and the guide rods are extended outward by the extendable component, so that the guide rods drive the vibrating component to extend to the outside of the backfill pipeline, and vibration is performed during the backfilling process, so that the solid waste slurry can stably enter the gaps in the solid waste from civil air defense projects.

Description

Technical Field

[0001] The present invention relates to the technical field of comprehensive utilization of solid waste, and in particular to equipment, methods and new materials for recycling and backfilling solid waste from early civil air defense projects. Background Art

[0002] Early intervention in civil air defense projects is essential. First, structural safety. Due to their age, these structures are aging and damaged, posing a potential collapse hazard and posing a threat to the safety of above-ground buildings and surrounding personnel. Second, waterproofing and drainage issues are prominent. Due to their early construction, the waterproofing layers of these projects have been subjected to years of use and prolonged exposure to groundwater infiltration and soil pressure, accelerating the development of structural cracks, deformation, and damage, leading to groundwater leakage. Third, ventilation systems are outdated. Older ventilation equipment cannot ensure adequate air circulation, resulting in poor air quality and the accumulation of harmful gases. Furthermore, outdated ventilation ducts can corrode and become clogged, making them unable to provide sufficient fresh air in emergencies. Early civil air defense projects are often located in crowded areas. Despite effective measures to prevent intrusion, the risk of intrusion persists. Fourth, electrical equipment is aging. The aging wiring and equipment in electrical systems such as lighting and communications systems in these projects are prone to short circuits and leakage, potentially causing fires and other safety incidents.

[0003] Publication No. CN115259817B discloses a method for synergistically preparing foundation pit backfill using multiple solid wastes. The method includes the following steps: steel slag pretreatment, copper slag pretreatment, high-intensity magnetic separation, carbonaceous raw material pretreatment, calcium raw material pretreatment, vanadium tailings pretreatment, aluminum ash slag pretreatment, pressing and molding, high-temperature calcination, wet beneficiation, powder pretreatment, composite gypsum pretreatment, preparation of glutinous rice slurry, and preparation of foundation pit backfill. This method effectively utilizes the valuable metals in metallurgical solid waste, achieving the synergistic utilization of industrial, marine, and agricultural solid wastes, achieving energy conservation and environmental protection. It also "treats waste with waste," generating higher economic value from solid waste while also achieving green and sustainable development of the construction industry.

[0004] At present, when dealing with underground civil air defense projects, most of them are achieved through the following methods:

[0005] Direct backfill method, disadvantages: density control is difficult: if the compaction equipment or construction process is improper, it is easy to cause uneven fill density, and problems such as ground subsidence may occur later.

[0006] Concrete pouring backfill method, disadvantages: high cost: the concrete material itself is relatively expensive, and special equipment is required during the pouring process, such as concrete mixers, conveying pumps, etc. The construction cost is much higher than the direct filling method.

[0007] To this end, the present invention proposes a recycling backfilling device, a backfilling method and solid waste materials that can be used to treat the remains of early civil air defense projects by mixing solid waste and filling it into the solid waste of underground civil air defense projects. Summary of the Invention

[0008] One of the purposes of the present invention is to provide equipment, methods and new materials for recycling and backfilling solid waste from early civil air defense projects. By mixing solid waste materials to backfill solid waste from underground civil air defense projects, the recycled backfill materials can be balanced during the backfilling process to ensure stability after filling.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: early civil air defense project solid waste recycling and backfilling equipment, including a mixing tank for mixing recycled backfill materials, the recycled backfill materials enter the mixing tank for material mixing, and the mixing tank discharge end is equipped with a backfill unit extending into the interior of the underground civil air defense project solid waste;

[0010] The backfill unit includes a backfill pipeline extending into the solid waste of the underground civil air defense project, the backfill pipeline includes at least one spiral blade for conveying solid waste slurry, and a driving unit is configured on the upper part of the spiral blade for driving the spiral blade to rotate;

[0011] The extendable component is arranged at the bottom of the spiral blade. The extendable component is provided with a plurality of guide rods extending outwards. The guide rods extend outwards, and a vibration component is arranged at one end of the guide rods extending outwards.

[0012] In one or more embodiments of the present invention, the driving unit includes a driving motor for driving the spiral blade to rotate and a telescopic part for changing the spiral blade. The telescopic part is installed at the output end of the driving motor and is driven to rotate by the driving motor. The telescopic end of the telescopic part is connected to the spiral blade, and the output end of the driving motor, the telescopic part and the spiral blade are coaxially arranged.

[0013] In one or more embodiments of the present invention, the telescopic member includes:

[0014] A connecting frame is fixed inside the backfill pipeline, a telescopic rod is arranged inside the connecting frame, the telescopic rod is fixed inside the connecting frame, a hydraulic pipe is installed outside the telescopic rod, and the hydraulic pipe extends toward the spiral blade;

[0015] The connecting plate is arranged between the connecting frame and the spiral blade. The end of the hydraulic pipe extending toward the spiral blade is fixed to the inner side of the connecting frame. A drive rod is arranged inside the hydraulic pipe. The drive rod extends to the inner side of the connecting plate, and the connecting plate can rotate relative to the drive rod.

[0016] In one or more embodiments of the present invention, the expandable component includes:

[0017] A mounting plate is disposed at the bottom of the spiral blade and moves synchronously with the spiral blade. A sleeve is provided on one side of the mounting plate and connected to the sleeve. A connector is provided at the bottom of the sleeve and can slide relative to the sleeve.

[0018] The guide rod is installed at the bottom of the connector, and a guide ring is configured on the inner side of the backfill pipeline. The guide rod extends to the inner side of the guide ring, and the guide ring is used to limit the swing angle of the guide rod.

[0019] In one or more embodiments of the present invention, a support spring is disposed on the outside of the connector to support the connector in returning to its original position. One end of the support spring is disposed on the outer wall of the connector, and the other end of the connector contacts the mounting plate.

[0020] The thrust of the solid waste slurry flow pushes the connector to swing, and the support spring is compressed by the connector. When the solid waste slurry does not flow, the support spring supports the connector to reset the connector.

[0021] In one or more embodiments of the present invention, the guide rod includes:

[0022] A rod body, one end of which is connected to a connecting piece and can swing relative to the connecting piece, the rod body extends to the outside of the backfill pipeline, and a swingable adjustment rod is configured at the end of the rod body extending outside the backfill pipeline, the adjustment rod can slide and rotate relative to the rod body, and the vibrating assembly is installed at both ends of the adjustment rod;

[0023] An arc-shaped rod is fixed at the middle of the rod body and extends to the inner side of the guide ring. The arc-shaped rod is used to limit the swing state of the rod body.

[0024] In one or more embodiments of the present invention, the adjusting rod includes:

[0025] A joist is mounted inside the rod body and is capable of sliding relative to the rod body, and at least two extension ends are configured inside the joist, and both extension ends are connected to the rotating wheel in the middle of the joist;

[0026] The cavity is opened inside the rod body, the frame extends into the cavity, and a support body is arranged inside the cavity to support the frame so that the frame pushes the cavity to move outward.

[0027] In one or more embodiments of the present invention, the connector includes:

[0028] A positioning rod extends into the interior of the sleeve and is capable of sliding relative to the sleeve. A swingable pressure plate is hingedly connected to the outside of the sleeve. A connecting tube is provided between the pressure plate and the positioning rod, and an insertion rod is provided between the pressure plate and the connecting tube. The insertion rod connects the pressure plate and changes the length of the pressure plate entering the connecting tube when the pressure plate swings.

[0029] The rod body is hinged to the positioning rod and can swing relative to the positioning rod.

[0030] The present application also provides a solid waste recycling and backfilling method, which is used for the above-mentioned early civil air defense project solid waste recycling and backfilling equipment, comprising the following steps:

[0031] Determine the type of solid waste from underground civil air defense projects and carry out backfill disposal according to the type of solid waste from underground civil air defense projects:

[0032] When a small area of ​​solid waste in an underground air defense project is in disrepair: coal gangue, construction waste, and fly ash are added to a mixing tank and stirred to form a toothpaste-like slurry with no critical flow rate. The driving unit drives the spiral blade to rotate so that the solid waste slurry enters the interior of the underground civil air defense project solid waste. At the same time, the extendable component extends outward and is vibrated by the vibrating component installed at the end of the guide rod;

[0033] When the solid waste of civil air defense projects is in disrepair on a large scale: Through partial underground exploration, explore the various technical parameters of the underground civil air defense projects and, in combination with the archived construction design drawings, stake out their location layout on the ground. According to the number and location of the filling body injection holes in the layout design, divide the reasonable filling sections, and insert the backfill pipeline into the solid waste of the underground civil air defense projects for segmented injection;

[0034] When the solid waste of civil air defense projects is in disrepair and cannot be accessed on a large scale: fill it with a high-efficiency stimulant, and use the drive unit to drive the spiral blade to rotate so that the solid waste slurry enters the interior of the underground solid waste of civil air defense projects. At the same time, the extendable component extends outward and is vibrated by the vibrating component installed at the end of the guide rod.

[0035] The present application also provides a solid waste backfill material for use in the above-mentioned solid waste recycling backfill method, comprising the following components:

[0036] Solid waste aggregate 60%-85%: coal gangue, particle size ≤10mm after crushing, 30%-50%, construction waste, particle size ≤5mm after crushing, 20%-40%, fly ash, particle size ≤0.075mm, 10%-20%;

[0037] Cementitious materials 5% to 15%: Portland cement: 5% to 10%, slag powder: replace part of the cement, replacement rate 20% to 40%;

[0038] Activator: 0.5% to 3%, including 0.3% to 1.5% chemical activation component and 0.2% to 1.5% mineral activation component;

[0039] Thickener 0.05% to 0.1%, retarder or quick-setting agent 0.01% to 0.1%;

[0040] Water 15% to 35%;

[0041] Water-cement ratio 0.8~1.2.

[0042] Through the above technical solution, the present invention has the following beneficial effects:

[0043] 1. When backfilling, the present application extends the backfill pipeline to the interior of the underground civil air defense project solid waste, and extends the guide rod outward through the extendible component, so that the guide rod drives the vibration component to extend to the outside of the backfill pipeline. During the backfilling process, vibration is performed to enable the solid waste slurry to stably enter the gaps of the civil air defense project solid waste, thereby ensuring the backfilling effect and the stability of the civil air defense project solid waste after backfilling.

[0044] 2. During the flow of solid waste slurry, the connector is controlled so that the connector can push the guide rod outward, causing the guide rod to move outward, and the vibration assembly is closer to the edge of the solid waste of the underground civil air defense project, so that the solid waste slurry can penetrate into the gap more stably during the vibration process, thereby improving the stability of the solid waste of the underground civil air defense project after filling.

[0045] 3. Due to the variable structure of solid waste in underground civil air defense projects, the adjusting rod is set to a rotatable connection mode. When the extensible component rotates with the spiral blade, the adjusting rod can be rotated when subjected to lateral force, thereby adjusting the position of the adjusting rod and avoiding interference of the solid waste in underground civil air defense projects on the adjusting rod.

[0046] 4. After the slurry is filled into the backfill area, it will interact with the surrounding medium. On the one hand, the cementitious material of the slurry will chemically react with certain components in the surrounding medium to enhance the adhesion between the slurry and the surrounding medium. On the other hand, the physical properties of the slurry will also affect its mechanical interaction with the surrounding medium. The slurry has a high density and can exert a certain pressure on the surrounding medium, making it more compact and reducing the porosity.

[0047] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 A perspective view of the present invention;

[0049] Figure 2 This is a schematic diagram of the split structure of the mixing tank and the backfill unit of the present invention;

[0050] Figure 3 is a schematic diagram of a backfill unit of the present invention;

[0051] Figure 4 is a cross-sectional view of the backfill pipeline of the present invention;

[0052] Figure 5 This is a disassembled diagram of the backfill pipeline of the present invention;

[0053] Figure 6 is a schematic diagram of a driving unit of the present invention;

[0054] Figure 7 is a cross-sectional view of the connecting frame of the present invention;

[0055] Figure 8 An exploded view of the drive unit of the present invention;

[0056] Figure 9 is a schematic diagram of an extendable component of the present invention;

[0057] Figure 10 is a cross-sectional view of the mounting plate of the present invention;

[0058] Figure 11 Schematic diagram of the support spring of the present invention;

[0059] Figure 12 is a cross-sectional view of the sleeve of the present invention;

[0060] Figure 13 This is a disassembled diagram of the expandable component of the present invention;

[0061] Figure 14 It is a schematic diagram of the guide rod structure of the present invention;

[0062] Figure 15 A cross-sectional view of a guide rod of the present invention;

[0063] Figure 16 An exploded view of the guide rod of the present invention;

[0064] Figure 17 It is a partial schematic diagram of the adjustment rod of the present invention.

[0065] In the figure: 1 mixing tank, 2 backfill unit;

[0066] 21 backfill pipeline, 22 spiral blade, 23 drive unit, 24 ductile component, 25 vibrating component;

[0067] 231 driving motor, 232 telescopic member: 321 connecting frame, 322 telescopic rod, 323 hydraulic pipe, 324 connecting plate, 325 driving rod;

[0068] 241 mounting plate, 242 sleeve, 243 connecting piece, 244 guide ring, 245 guide rod, 246 support spring;

[0069] 431 positioning rod, 432 pressing plate, 433 connecting pipe, 434 inserting rod;

[0070] 451 rod body, 452 adjustment rod, 453 curved rod;

[0071] 521 Frame, 522 Extension end, 523 Rotating wheel, 524 Cavity, 525 Support body. DETAILED DESCRIPTION

[0072] The following drawings illustrate various embodiments of the present invention. For clarity, many practical details are included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are optional. Furthermore, features from different embodiments may be interchangeably applicable, where practically possible.

[0073] Unless otherwise defined, all terms used herein (including technical and scientific terms) have their ordinary meanings as understood by those skilled in the art. Furthermore, the definitions of the aforementioned terms in commonly used dictionaries should be interpreted in the context of this specification as consistent with the meanings in the art relevant to the present invention. Unless otherwise explicitly defined, these terms should not be interpreted as having idealized or overly formal meanings.

[0074] The following explains the relationships and terms used in this application:

[0075] Parallel: The parallel defined in this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism, allowing for situations where the two sides are not absolutely parallel due to factors such as assembly tolerance, design tolerance, and the influence of structural flatness. Small angle errors are allowed. For example, within an assembly error range of 10 degrees, it can be understood as a parallel relationship.

[0076] Vertical: The vertical defined in this application is not limited to an absolute vertical intersection relationship (angle of 90 degrees). It allows for non-absolute vertical intersection relationships caused by factors such as assembly tolerance, design tolerance, and structural flatness. It allows for errors in a small angle range. For example, the assembly error range of 80 to 100 degrees can be understood as a vertical relationship.

[0077] Floor: The floor defined in this application is not limited to a specific material or location. It only needs to be a platform for supporting the application, and it can be stacked, tilted, and have varying flatness. For example, cement floors, tile floors, work platforms, etc. can all be interpreted as floors.

[0078] The above explanation does not fully include the relationship definitions given in this application, but only represents part of it.

[0079] The present invention provides a device for recycling and backfilling solid waste from early civil air defense projects, which is used for backfilling solid waste from underground civil air defense projects. A variety of solid wastes are mixed as solid waste backfill materials, and vibration is performed during the filling process to ensure the filling effect of the recycled backfill materials flowing into the gaps in the solid waste of the civil air defense projects. Since the particle size of the solid waste materials is different, there is a large gap between them and concrete. The early civil air defense projects have been left for a long time. During the filling process, relying solely on the fluidity of the solid waste slurry itself is not enough to fill the gaps well.

[0080] See Figure 1-5 As shown, in one embodiment, the backfill disposal equipment includes a mixing tank 1 for mixing and recycling backfill materials. The recycled backfill materials enter the mixing tank 1 for material mixing. The discharging end of the mixing tank 1 is equipped with a backfill unit 2 extending into the solid waste of the underground civil air defense project.

[0081] The backfill unit 2 includes a backfill pipeline 21 extending into the solid waste of the underground civil air defense project. The backfill pipeline 21 includes at least one spiral blade 22 for conveying solid waste slurry. A driving unit 23 is configured on the upper part of the spiral blade 22 for driving the spiral blade 22 to rotate.

[0082] The extendable component 24 is disposed at the bottom of the spiral blade 22 . The extendable component 24 is configured with a plurality of guide rods 245 extending outward. The guide rods 245 extend outward, and a vibrating component 25 is configured at one end of the guide rods 245 extending outward.

[0083] In one feasible method, during the backfilling process, the driving unit 23 is used to drive the spiral blade 22 to rotate, and the solid waste slurry inside the mixing tank 1 is transported to the solid waste inside the underground civil air defense project. During the rotation of the spiral blade 22, the extensible component 24 rotates synchronously with the spiral blade 22, thereby driving the vibration component 25 to extend to different positions of the solid waste of the underground civil air defense project to vibrate the solid waste slurry.

[0084] The plurality of guide rods 245 are configured to be movable individually, and to expand and contract according to the shape of the solid waste of the underground civil air defense project during the rotation of the extensible component 24, so as to adapt to different shapes of the solid waste of the underground civil air defense project. The solid waste slurry flows during the rotation of the spiral blade 22, and the power of the solid waste slurry flow is used to change the expansion and contraction state of the guide rod 245, thereby adjusting the extension position of the guide rod 245.

[0085] The movement of the vibration component 25 can facilitate the extension of the solid waste slurry into the gaps of the solid waste of the underground civil air defense project, so as to ensure the filling effect of the solid waste slurry in the solid waste of the underground civil air defense project. There are multiple gaps in the solid waste of the underground civil air defense project, and the gaps cannot be filled well by the flow of the solid waste slurry itself. However, using the vibration component 25 to vibrate along the edge of the solid waste of the underground civil air defense project can better fill the gaps.

[0086] See Figure 2-5 As shown, in one embodiment, the driving unit 23 includes a driving motor 231 for driving the spiral blade 22 to rotate and a telescopic member 232 for changing the spiral blade 22. The telescopic member 232 is installed at the output end of the driving motor 231 and is driven to rotate by the driving motor 231. The telescopic end of the telescopic member 232 is connected to the spiral blade 22. The output end of the driving motor 231, the telescopic member 232 and the spiral blade 22 are coaxially arranged.

[0087] In one feasible method, the driving motor 231 rotates to drive the telescopic member 232 to rotate, thereby causing the spiral blade 22 to rotate synchronously. When the backfill pipeline 21 has not entered the solid waste of the underground civil defense project, the expandable component is stored inside the backfill pipeline 21. During the hole opening process, there is no need to open a larger hole, thereby avoiding interference with the stability of the underground cavity.

[0088] See Figure 6-8 As shown, in one embodiment, the telescopic member 232 includes:

[0089] A connecting frame 321 is fixed inside the backfill pipeline 21. A telescopic rod 322 is disposed inside the connecting frame 321. The telescopic rod 322 is fixed inside the connecting frame 321. A hydraulic pipe 323 is installed outside the telescopic rod 322. The hydraulic pipe 323 extends toward the spiral blade 22.

[0090] The connecting disk 324 is arranged between the connecting frame 321 and the spiral blade 22. The end of the hydraulic pipe 323 extending toward the spiral blade 22 is fixed to the inner side of the connecting frame 321, and a drive rod 325 is arranged inside the hydraulic pipe 323. The drive rod 325 extends to the inner side of the connecting disk 324, and the connecting disk 324 can rotate relative to the drive rod 325.

[0091] In one practicable embodiment, the driving rod 325 extends to one end of the connecting disk 324 and is configured with a ball bearing to connect to the connecting disk 324. The connecting disk 324 is configured with an annular groove, and the ball bearing extends into the annular groove and contacts the annular groove, so that the connecting disk 324 can rotate. The middle part of the connecting disk 324 extends toward the output end of the driving motor 231 and is connected to the output end, and the connecting disk 324 can slide relative to the output end of the driving motor 231.

[0092] Optionally, the telescopic member 232 is a hydraulic telescopic assembly, which is installed at the output end of the drive motor 231 and driven to rotate by the drive motor 231, thereby utilizing the hydraulic telescopic assembly to drive the spiral blade 22 to rotate, thereby realizing the transportation of solid waste slurry.

[0093] The middle part of the backfill pipeline 21 is connected to the mixing tank 1. During the flow of the solid waste slurry, the flow of the solid waste slurry itself and the rotation of the spiral blade 22 prevent the solid waste slurry from flowing toward the telescopic part 232 when entering the backfill pipeline 21, thereby protecting the telescopic part 232.

[0094] See Figure 9-10 as well as Figure 13-14 As shown, in one embodiment, the expandable component 24 includes:

[0095] A mounting plate 241 is disposed at the bottom of the spiral blade 22. The mounting plate 241 moves synchronously with the spiral blade 22. A sleeve 242 is provided on one side of the mounting plate 241 and connected to the sleeve 242. A connector 243 is provided at the bottom of the sleeve 242. The connector 243 can slide relative to the sleeve 242.

[0096] The guide rod 245 is installed at the bottom of the connector 243 , and a guide ring 244 is disposed inside the backfill pipeline 21 . The guide rod 245 extends to the inside of the guide ring 244 . The guide ring 244 is used to limit the swing angle of the guide rod 245 .

[0097] In one feasible method, the guide rod 245 is restricted by a guide ring 244, and the guide ring 244 can be used to guide the guide rod 245, that is, when the connecting piece 243 extends to the bottom, the guide rod 245 is adjusted to different angles. Adjusting the guide rod 245 to different angles can determine different expansion ranges of the guide rod 245, and adjust it according to the shape of the solid waste in the underground civil defense project.

[0098] The outward extension of the connecting member 243 is achieved through the flow of solid waste slurry, and the contour of the outward movement of the guide rod 245 is limited by the edge state inside the solid waste of the underground civil air defense project, so as to ensure that the guide rod 245 can contact the edge of the solid waste of the underground civil air defense project.

[0099] See Figure 9-12 As shown, in one embodiment, a support spring 246 is disposed on the outside of the connecting member 243 to support the connecting member 243 in returning to its original position. One end of the support spring 246 is disposed on the outer wall of the connecting member 243, and the other end of the connecting member 243 contacts the mounting plate 241.

[0100] The thrust of the solid waste slurry flow pushes the connecting member 243 to swing, and the support spring 246 is compressed by the connecting member 243. When the solid waste slurry does not flow, the support spring 246 supports the connecting member 243 to restore the connecting member 243.

[0101] In one feasible manner, the connector 243 is reset by setting a support spring 246. In order to support the connectors 243 separately, each connector 243 can be reset separately when each connector 243 expands outward separately. The support spring 246 is set to an S shape, that is, each support spring 246 supports the connector 243.

[0102] See Figure 14-17 As shown, in one embodiment, the guide rod 245 includes:

[0103] A rod 451 has one end connected to the connector 243 and is capable of swinging relative to the connector 243. The rod 451 extends toward the outside of the backfill pipeline 21. A swingable adjustment rod 452 is disposed at one end of the rod 451 extending toward the outside of the backfill pipeline 21. The adjustment rod 452 is capable of sliding and rotating relative to the rod 451. The vibrating assembly 25 is mounted at both ends of the adjustment rod 452.

[0104] The arc-shaped rod 453 is fixed to the middle of the rod body 451 and extends to the inner side of the guide ring 244 . The arc-shaped rod 453 is used to limit the swing state of the rod body 451 .

[0105] In one feasible method, the arc rod 453 is set to limit the swinging state of the rod body 451. In order to further limit the arc rod 453, the arc rod 453 is connected to the sleeve 242 through an auxiliary rod, and the two ends of the auxiliary rod are hinged to the sleeve 242 and the arc rod 453, so that both the arc rod 453 and the auxiliary rod can swing.

[0106] A guide groove is configured on the inner side of the rod body 451, and both ends of the adjusting rod 452 extend to the inner side of the guide groove and can slide inside the guide groove. A positioning protrusion supported by a positioning spring is configured inside the adjusting rod 452. The positioning protrusion is adapted to the guide groove, and when the adjusting rod 452 is subjected to a lateral force, the positioning protrusion is compressed, so that the adjusting rod 452 can rotate relative to the rod body 451.

[0107] The adjusting rod 452 is provided with at least two extension ends 522 for installing the vibrating assembly 25. When the adjusting rod 452 contacts the edge of the solid waste of the underground civil air defense project and cannot slide in the guide groove to change the position of the adjusting rod 452, the adjusting rod 452 rotates so that the other extension end 522 contacts the edge of the solid waste of the underground civil air defense project.

[0108] See Figure 14-17 As shown, in one embodiment, the adjustment rod 452 includes:

[0109] A frame 521 is mounted inside the rod 451 and is capable of sliding relative to the rod 451. The frame 521 is internally provided with at least two extension ends 522, each of which is connected to a rotating wheel 523 in the middle of the frame 521.

[0110] The cavity 524 is opened inside the rod body 451, and the frame 521 extends into the cavity 524. The support body 525 is configured inside the cavity 524 to support the frame 521 so that the frame 521 pushes the cavity 524 to move outward.

[0111] In one practicable manner, the positioning protrusion is configured as a wedge block, and the positioning protrusion is configured in the direction of rotation of the spiral blade 22, that is, when the spiral blade 22 rotates, the extension end 522 is subjected to force, and the inclined surface of the positioning protrusion will be squeezed by the guide groove and the frame 521, so that the extension end 522 is disconnected from the guide groove and the frame 521, and the extension end 522 can rotate.

[0112] Optionally, the support body 525 is a filling medium, which supports the frame 521 through the pressure of the filling medium. When the adjusting rod 452 contracts, the frame 521 squeezes the filling medium, and the pressure of the filling medium increases. When the adjusting rod 452 extends outward, the adjusting rod 452 is pushed outward by the pressure of the filling medium.

[0113] Alternatively, the support body 525 is a spring, which is located inside the cavity 524 to support the frame 521 . When the frame 521 contracts, the spring is squeezed, and the spring pushes the frame 521 outward.

[0114] In another embodiment, a roller (not shown in the figure) is configured on the end of the extension end 522 away from the rotating wheel 523. The roller contacts the edge of the solid waste of the underground civil defense project and can rotate relative to the extension end 522 to avoid wear of the adjustment rod 452.

[0115] In the adjusting rod 452 , the frame 521 slides relative to the guide groove, and the rotating wheel 523 rotates relative to the frame 521 and the rod body 451 .

[0116] See Figure 10-12 As shown, in one embodiment, the connecting member 243 includes:

[0117] A positioning rod 431 extends into the interior of the sleeve 242 and is capable of sliding relative to the sleeve 242. A swingable pressure plate 432 is hingedly connected to the outside of the sleeve 242. A connecting tube 433 is provided between the pressure plate 432 and the positioning rod 431. An insertion rod 434 is provided between the pressure plate 432 and the connecting tube 433. The insertion rod 434 connects the pressure plate 432 and changes the length of the pressure plate 432 that enters the connecting tube 433 when the pressure plate 432 swings.

[0118] The rod body 451 is hinged to the positioning rod 431 and can swing relative to the positioning rod 431 .

[0119] In one feasible method, by setting a swingable pressure plate 432, the length of the insertion rod 434 extending into the connecting tube 433 can be controlled, and the connecting tube 433 is filled with a medium. When the insertion rod 434 moves into the connecting tube 433, the medium inside the connecting tube 433 is pushed to push the positioning rod 431 outward, thereby changing the position of the rod body 451.

[0120] Among them, multiple positioning cavities are set on the inner side of the sleeve 242, the positioning rod 431 extends into the inside of the positioning cavity, the connecting tube 433 is connected to the positioning cavity, and one side of the pressure plate 432 is supported by the support spring 246, so that the pressure plate 432 is reset when the pressure plate 432 is not under force.

[0121] The present application also provides a solid waste recycling and backfilling method, which is used for the above-mentioned early civil air defense project solid waste recycling and backfilling equipment, comprising the following steps:

[0122] Determine the type of solid waste from underground civil air defense projects and carry out backfill disposal according to the type of solid waste from underground civil air defense projects:

[0123] When a small area of ​​solid waste from an underground air defense project is in disrepair: coal gangue, construction waste, and fly ash are added to a mixing tank 1 and stirred and mixed to form a toothpaste-like slurry with no critical flow rate. The driving unit 23 drives the spiral blade 22 to rotate so that the solid waste slurry enters the interior of the underground solid waste from the underground air defense project. At the same time, the extendable component 24 extends outward and is vibrated by the vibrating component 25 installed at the end of the guide rod 245;

[0124] When the solid waste of the civil air defense project is in disrepair on a large scale: through partial underground exploration, the technical parameters of the underground civil air defense project are explored and its location layout is laid out on the ground in combination with the archived construction design drawings. According to the number and position of the filling body injection holes in the layout design, reasonable filling sections are divided and the backfill pipeline 21 is inserted into the solid waste of the underground civil air defense project for segmented injection;

[0125] When the solid waste of civil air defense projects is in disrepair and cannot be accessed on a large scale: it is filled with a high-efficiency stimulant, and the spiral blade 22 is driven by the driving unit 23 to rotate so that the solid waste slurry enters the interior of the underground civil air defense project solid waste. At the same time, the extendable component 24 extends outward and is vibrated by the vibration component 25 installed at the end of the guide rod 245.

[0126] The present application also provides a solid waste backfill material for use in the above-mentioned solid waste recycling backfill method, comprising the following components:

[0127] Solid waste aggregate 60%-85%: coal gangue, particle size ≤10mm after crushing, 30%-50%, construction waste, particle size ≤5mm after crushing, 20%-40%, fly ash, particle size ≤0.075mm, 10%-20%;

[0128] Cementitious materials 5% to 15%: Portland cement: 5% to 10%, slag powder: replace part of the cement, replacement rate 20% to 40%;

[0129] Activator: 0.5% to 3%, including 0.3% to 1.5% chemical activation component and 0.2% to 1.5% mineral activation component;

[0130] Thickener 0.05% to 0.1%, retarder or quick-setting agent 0.01% to 0.1%;

[0131] Water 15% to 35%;

[0132] Water-cement ratio 0.8~1.2.

[0133] Although the present invention is disclosed in conjunction with the above embodiments, it is not intended to limit the present invention. Anyone familiar with this technology can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the definition of the attached claims.

Claims

1. An early civil air defense project solid waste recycling and backfilling equipment, comprising a mixing tank (1) for mixing recycled backfill materials, wherein the recycled backfill materials enter the mixing tank (1) for material mixing, and a backfill unit (2) is configured at the discharge end of the mixing tank (1) and extends into the interior of the underground civil air defense project solid waste, characterized in that: The backfill unit (2) includes a backfill pipeline (21) extending into the interior of the solid waste of the underground civil air defense project. The backfill pipeline (21) includes at least one spiral blade (22) for conveying solid waste slurry. A driving unit (23) is configured on the upper portion of the spiral blade (22) for driving the spiral blade (22) to rotate. An extendable component (24) is disposed at the bottom of the spiral blade (22), and the extendable component (24) is configured with a plurality of guide rods (245) extending outward, wherein the guide rods (245) extend outward, and a vibrating component (25) is configured at one end of the guide rods (245) extending outward; The driving unit (23) includes a driving motor (231) for driving the spiral blade (22) to rotate and a telescopic member (232) for changing the telescopic length of the spiral blade (22). The telescopic member (232) is mounted on the output end of the driving motor (231) and is driven to rotate by the driving motor (231). The telescopic end of the telescopic member (232) is connected to the spiral blade (22). The output end of the driving motor (231), the telescopic member (232) and the spiral blade (22) are coaxially arranged. The telescopic member (232) comprises: A connecting frame (321) is fixed inside the backfill pipeline (21), a telescopic rod (322) is arranged inside the connecting frame (321), the telescopic rod (322) is fixed inside the connecting frame (321), a hydraulic pipe (323) is installed outside the telescopic rod (322), and the hydraulic pipe (323) extends toward the spiral blade (22); A connecting disk (324) is provided between the connecting frame (321) and the spiral blade (22); a hydraulic pipe (323) is fixed to the inner wall of the connecting frame (321); a driving rod (325) is provided inside the hydraulic pipe (323); the driving rod (325) extends to the inner side of the connecting disk (324); and the connecting disk (324) is capable of rotating relative to the driving rod (325); The extendable component (24) includes: A mounting plate (241) is disposed at the bottom of the spiral blade (22). The mounting plate (241) and the spiral blade (22) move synchronously. A sleeve (242) is provided on one side of the mounting plate (241) and is connected to the sleeve (242). A connecting piece (243) is provided at the bottom of the sleeve (242). The connecting piece (243) can slide relative to the sleeve (242). The guide rod (245) is installed at the bottom of the connecting piece (243), and a guide ring (244) is configured inside the backfill pipeline (21). The guide rod (245) extends to the inside of the guide ring (244). The guide ring (244) is used to limit the swing angle of the guide rod (245).

2. The early civil air defense project solid waste recycling and backfilling equipment according to claim 1 is characterized in that: A support spring (246) is disposed outside the connecting member (243) to support the returning of the connecting member (243), one end of the support spring (246) is disposed on the outer wall of the connecting member (243), and the other end of the support spring (246) contacts the mounting plate (241); The thrust of the solid waste slurry flow pushes the connecting member (243) to swing, and the supporting spring (246) is compressed by the connecting member (243). When the solid waste slurry does not flow, the supporting spring (246) supports the connecting member (243) to reset the connecting member (243).

3. The early civil air defense project solid waste recycling and backfilling equipment according to claim 2 is characterized in that: The guide rod (245) comprises: A rod body (451) is connected to the connecting member (243) at one end and is capable of swinging relative to the connecting member (243). The rod body (451) extends toward the outside of the backfill pipeline (21). A swingable adjustment rod (452) is disposed at one end of the rod body (451) extending to the outside of the backfill pipeline (21). The adjustment rod (452) is capable of sliding and rotating relative to the rod body (451). The vibrating assembly (25) is mounted at both ends of the adjustment rod (452). The arc-shaped rod (453) is fixed to the middle of the rod body (451) and extends to the inner side of the guide ring (244). The arc-shaped rod (453) is used to limit the swing state of the rod body (451).

4. The early civil air defense project solid waste recycling and backfilling equipment according to claim 3 is characterized in that: The adjusting rod (452) includes: A profile frame (521) is installed inside the rod body (451) and is capable of sliding relative to the rod body (451). The profile frame (521) is internally provided with at least two extension ends (522), and the extension ends (522) are both connected to a rotating wheel (523) in the middle of the profile frame (521); The cavity (524) is opened inside the rod body (451), and the frame (521) extends into the cavity (524). The support body (525) is configured inside the cavity (524) to support the frame (521) so that the frame (521) pushes the extension end (522) to move outward.

5. The early civil air defense project solid waste recycling and backfilling equipment according to claim 4 is characterized in that: The connecting piece (243) comprises: A positioning rod (431) extends into the interior of the sleeve (242) and is capable of sliding relative to the sleeve (242); a swingable pressing plate (432) is hingedly connected to the outside of the sleeve (242); a connecting tube (433) is provided between the pressing plate (432) and the positioning rod (431); and an inserting rod (434) is provided between the pressing plate (432) and the connecting tube (433); the inserting rod (434) is connected to the pressing plate (432) and changes the length of the inserting rod entering the connecting tube (433) when the pressing plate (432) swings; The rod body (451) is hinged to the positioning rod (431) and can swing relative to the positioning rod (431).

6. A solid waste recycling and backfilling method, using the early civil air defense project solid waste recycling and backfilling equipment as described in any one of claims 1 to 5, characterized in that: The following steps are involved: Determine the type of solid waste from underground civil air defense projects and carry out backfill disposal according to the type of solid waste from underground civil air defense projects: When a small area of ​​solid waste of an underground air defense project is in disrepair: coal gangue, construction waste, and fly ash are added to a mixing tank (1) and stirred to form a toothpaste-like slurry with no critical flow rate. The driving unit (23) drives the spiral blade (22) to rotate so that the solid waste slurry enters the interior of the underground solid waste of the underground air defense project. At the same time, the extendable component (24) extends outward and is vibrated by the vibrating component (25) installed at the end of the guide rod (245); When the solid waste of civil air defense project is in disrepair on a large scale: through partial underground exploration, explore the various technical parameters of the underground civil air defense project and combine the archived construction design drawings to lay out its location layout on the ground, divide the reasonable filling section according to the number and position of the filling body injection holes in the layout design, insert the backfill pipeline (21) into the solid waste of the underground civil air defense project for segmented injection; When the solid waste of the civil air defense project is in disrepair and cannot be accessed on a large scale: filling is carried out by using a high-efficiency stimulant, and the spiral blade (22) is driven to rotate by the driving unit (23) so that the solid waste slurry enters the interior of the solid waste of the underground civil air defense project. At the same time, the extendable component (24) extends outward and is vibrated by the vibrating component (25) installed at the end of the guide rod (245).

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