Early civil air defense engineering solid waste cyclic utilization filling equipment, method and new material

Abstract

The invention discloses early-stage civil air defense engineering solid waste cyclic utilization filling equipment and method and a new material, and relates to the technical field of civil air defense building backfill, the early-stage civil air defense engineering solid waste cyclic utilization filling equipment comprises a primary disposal unit and further comprises a secondary disposal unit installed below the primary disposal unit; the primary treatment unit comprises a primary mixing kettle, a second motor and a primary treatment assembly, and the second motor drives the primary treatment assembly to rotate to primarily stir a mixture in the primary mixing kettle; the device has the advantages that the primary treatment unit and the secondary treatment unit are adopted for mixing mixed materials, the situation that the materials are not uniform is avoided, the mixing efficiency is improved, meanwhile, the mixed materials are mixed and stirred through two different stirring modes by the primary treatment unit and the secondary treatment unit, and the mixing efficiency is improved. The material flowability of the stirring area can be better adjusted, dead angles can be effectively avoided, the material flowability is improved, and the mixing effect is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of comprehensive utilization of solid waste, and in particular to a filling device, method and new material for recycling solid waste from early civil air defense projects. Background Art

[0002] It is necessary to deal with early civil air defense projects. Due to their long construction period, the structures of early civil air defense projects are aging and damaged, and there is a risk of collapse, posing a threat to the safety of ground buildings and surrounding personnel. Due to their early construction time, they have been affected by groundwater infiltration, soil pressure, etc. for a long time, and their structures may crack and deform, necessitating backfilling.

[0003] Existing backfilling methods include direct filling, concrete pouring backfilling and construction waste backfilling. The backfill body formed after concrete pouring has high strength and can withstand a large upper load. However, the concrete material itself is relatively expensive in the concrete pouring backfilling method, and special equipment such as concrete mixers and conveying pumps are required during the pouring process, resulting in high construction costs. Therefore, a slurry filling disposal method is used for filling.

[0004] Compared with concrete, filling slurry uses solid waste such as construction solid waste and coal gangue as aggregate to replace sand and stone in concrete, and adds fly ash to reduce the proportion of cement, which not only solves the problem of solid waste in construction projects but also reduces the cost of disposal materials;

[0005] The filling paste is a paste-like slurry with "no critical flow velocity and no need for dehydration" and good fluidity. With reasonable design, it solves problems such as poor concrete fluidity and poor working conditions of early civil air defense projects that caused the edges and upper corners to not be filled.

[0006] When preparing the filling slurry, it is necessary to use a mixing and stirring equipment to mix the raw materials of the filling slurry. For example, the publication number CN119388578A discloses a concrete mixing construction device for water conservancy project construction, which includes a base plate and a mixing barrel, the bottom of the base plate is fixedly connected to a support plate, the top of the support plate is fixedly connected to a screening box, the middle of the screening box is slidably connected to a screening box and a filter plate, the top of the base plate is provided with a vibration assembly for driving the filter plate to vibrate rapidly, and the middle of the mixing barrel is provided with a stirring assembly.

[0007] When the above-mentioned mixing construction device is used, the movable rod can conveniently drive the multiple mixing rollers to move when it rotates, and the multiple mixing rollers will drive the mixing blades to move at the same time when they move; thereby, the concrete can be conveniently mixed, and the concrete can be moved inside the mixing barrel under the action of the mixing blades, so that the concrete is not always in one position for mixing and mixing. However, the above-mentioned mixing construction device has a single mixing method and low mixing efficiency, which affects the construction efficiency.

[0008] Therefore, a new type of early civil air defense project solid waste recycling filling equipment can be used to solve the shortcomings of the existing technology. Summary of the invention

[0009] The purpose of the present invention is to solve the problems of single mixing and stirring mode and low mixing efficiency in the prior art, and to propose early civil air defense project solid waste recycling filling equipment.

[0010] In order to achieve the above object, the present invention adopts the following technical solutions:

[0011] The solid waste recycling and filling equipment of the early civil air defense project includes a primary disposal unit and a secondary disposal unit installed below the primary disposal unit;

[0012] The primary treatment unit comprises a primary mixing kettle, a second motor and a primary treatment component, wherein the second motor drives the primary treatment component to rotate to perform primary stirring on the mixture in the primary mixing kettle;

[0013] The secondary treatment unit includes a secondary mixing kettle, a first motor, two hollow rotating shafts, two spiral blades and multiple secondary stirring components. The first motor drives the hollow rotating shaft to rotate, driving the secondary stirring component to rotate and stir. After stirring, the first motor drives the spiral blades to rotate to bring out the slurry in the secondary mixing kettle.

[0014] Preferably, the primary treatment assembly comprises a rotating frame, the rotating frame is connected to the second motor driving end, two first stirring rods are fixedly mounted on the rotating frame, and two rotating shaft frames are rotatably mounted on the rotating frame, and two second stirring rods are fixedly mounted on the two rotating shaft frames;

[0015] Two first gear discs are fixedly installed in the primary mixing kettle, and a second gear disc is fixedly installed on each of the two rotating shaft frames. A chain is sleeved between the two first gear discs and the corresponding second gear discs.

[0016] Preferably, the primary mixing kettle is fixedly mounted on the upper part of the secondary mixing kettle, and an electrically controlled discharge assembly is mounted on the bottom of the primary mixing kettle for placing the mixture mixed in the primary mixing kettle into the secondary mixing kettle.

[0017] Preferably, a support frame is fixedly installed at the bottom of the secondary mixing kettle for supporting the secondary mixing kettle, the first motor is fixedly installed on the support frame, and a reduction gear set matched with the first motor is installed on the support frame for reducing the rotation speed of the first motor;

[0018] The two hollow rotating shafts are rotationally connected to the secondary mixing kettle, one of the hollow rotating shafts is fixedly connected to the reduction gear set, the two hollow rotating shafts are driven by a transmission gear cylinder, and the rotation directions of the two hollow rotating shafts are opposite;

[0019] The two spiral blades are fixedly connected to the corresponding hollow rotating shaft, and each of the secondary stirring components is rotationally connected to the corresponding hollow rotating shaft.

[0020] Preferably, an electric partition is fixedly installed inside the secondary mixing kettle, and the electric partition is installed between the spiral blade and the secondary stirring assembly to isolate the interior of the secondary mixing kettle into two cavities: a mixing chamber and a discharge chamber. The mixing chamber is used for mixing the mixture, and the discharge chamber is used to discharge the mixture from the secondary mixing kettle after mixing.

[0021] Preferably, the secondary stirring assembly comprises a hollow tube rotatably mounted on the side of the hollow rotating shaft, the hollow tube penetrates and extends into the interior of the hollow rotating shaft, a secondary stirring blade is fixedly mounted on one end of the hollow tube away from the hollow rotating shaft, and an angle adjustment mechanism matched with the hollow tube is mounted on the support frame;

[0022] A first frame is fixedly installed inside the hollow rotating shaft, a telescopic rod is slidably installed on the first frame, the telescopic rod passes through the hollow tube, and the telescopic rod and the hollow tube are rotatably connected, the telescopic end of the telescopic rod is freely telescopic in the hollow tube, and a driving mechanism is installed between the hollow tube and the telescopic end of the telescopic rod;

[0023] The telescopic rod is hollow in design, and a telescopic column is installed through the middle of the telescopic rod. The telescopic column and the telescopic rod are connected in a damped rotation manner. A secondary stirring rod is fixedly installed on the end of the telescopic column away from the first frame. A second bevel gear set is installed between the end of the telescopic column close to the first frame and the hollow rotating shaft. One of the bevel gears in the second bevel gear set is fixedly connected to the telescopic column. A second frame is fixedly installed inside the hollow rotating shaft, and the other bevel gear is fixedly connected to the second frame.

[0024] Preferably, the angle adjustment mechanism includes a third motor fixedly mounted on the support frame, a shaft body fixedly mounted on the driving end of the third motor, the shaft body extends into the interior of the hollow rotating shaft, and the shaft body and the hollow tube are connected to each other through a first bevel gear set that meshes with each other.

[0025] Preferably, the driving mechanism includes a sliding block slidably mounted on the inner wall of the hollow tube, a V-shaped groove is fixed on the telescopic end of the telescopic rod, a rotating column matching the V-shaped groove is rotatably mounted on the sliding block, and a buffer limit spring is fixedly mounted between the sliding block and the inner wall of the hollow tube.

[0026] The early filling method of civil air defense projects includes the following steps:

[0027] S1. Firstly, coal gangue, construction waste, discarded bricks, concrete blocks and tailings are made into uniform particles to form finished aggregate;

[0028] S2, then use an aggregate weighing scale to weigh a certain amount of aggregate, add the finished aggregate into the above-mentioned early civil air defense project solid waste recycling filling equipment, add a reasonable amount of fly ash to increase the liquid density while ensuring that there is no water seepage, and match the finished aggregate according to the specific gravity to achieve physical suspension of the aggregate;

[0029] S3. Subsequently, a proper amount of cement and activator are weighed by a micro powder scale, and the cement and activator are put into the early civil air defense project solid waste recycling filling equipment, and finally water is added into the early civil air defense project solid waste recycling filling equipment, and the aggregate, water, cement and activator mixture are stirred and mixed in the early civil air defense project solid waste recycling filling equipment to form a mixed slurry;

[0030] S4. After stirring and mixing for a certain period of time, the mixture is mixed evenly, and then the slurry formed by the mixture is sent to the interior of the civil air defense project through a pump.

[0031] The recycled filling material of solid waste from early civil air defense projects, such as the mixed slurry mentioned above, includes aggregate, binder and activator;

[0032] Aggregates are engineering solid waste, including coal gangue, construction waste, discarded bricks, concrete blocks and uniform particles after tailings are crushed;

[0033] Binder: Cement, used to improve the final setting strength and increase the safety factor after backfilling;

[0034] Activator: After combining with liquid, the liquid is transformed into aggregate with good integrity. Wherever water can flow, there is supporting strength, which guarantees the quality of backfill and ensures that the filling body does not shrink.

[0035] The mixing ratio of the aggregate, the binder and the water is 2-3:1:0.4-0.6, and the content of the binder is 10%-15% of the total mass of the aggregate, the binder and the water mixture.

[0036] Compared with the prior art, the present invention has the following advantages:

[0037] 1. When mixing mixed materials, the filling and disposal equipment of the civil air defense project adopts the primary disposal unit and the secondary disposal unit to mix the mixed materials, which greatly improves the mixing uniformity of the mixed materials and improves the mixing efficiency of the mixed materials, thereby speeding up the filling speed of the civil air defense project.

[0038] 2. When the filling and disposal equipment of the air defense project is mixing the mixed materials, a first stirring rod that revolves and a second stirring rod that revolves and rotates simultaneously are used to stir and mix the mixed materials in the primary mixing kettle, so that the mixed materials are mixed more thoroughly and the probability of agglomeration of the mixed materials is reduced.

[0039] 3. When the filling and disposal equipment of the air defense project is mixing the mixed materials, a secondary stirring component is used to stir the mixed materials in the secondary mixing kettle for the second time. The angle of the secondary stirring blade on the secondary disposal component can be changed dynamically, which not only has the function of pushing the material to move and unload, but also has the function of rotation and stirring. The secondary stirring rod on the secondary stirring blade can change its shape according to the speed difference between the third motor and the first motor. It retracts into the secondary stirring blade when pushing the mixed materials to move. When stirring, it rotates relative to the secondary stirring blade to further improve the uniformity of mixing.

[0040] In summary, the present invention adopts a primary treatment unit and a secondary treatment unit to mix the mixed materials, avoid uneven materials, and improve mixing efficiency. At the same time, the primary treatment unit and the secondary treatment unit mix and stir the mixed materials through two different stirring methods, which can better adjust the material fluidity in the stirring zone, effectively avoid dead corners, and improve the fluidity of the materials, thereby enhancing the mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0042] Figure 1 This is a schematic diagram of the structure of the early civil air defense project solid waste recycling filling equipment proposed by the present invention;

[0043] Figure 2 for Figure 1 Detailed schematic diagram of the structure after being rotated to a certain angle;

[0044] Figure 3 for Figure 1 Detailed schematic diagram of the enlarged structure of the primary treatment unit;

[0045] Figure 4 for Figure 3 Detailed schematic diagram of the structure after being rotated to a certain angle;

[0046] Figure 5 for Figure 4 Detailed schematic diagram of the structure after removing the primary mixing kettle and rotating it at a certain angle;

[0047] Figure 6 for Figure 5A detailed diagram showing the structure of the first treatment component after it has been rotated to a certain angle;

[0048] Figure 7 for Figure 2 Enlarged structural schematic detail diagram of the secondary disposal unit;

[0049] Figure 8 for Figure 7 A schematic detailed diagram of the structure after removing the secondary mixing kettle;

[0050] Fig. 9 for Figure 8 A detailed schematic diagram of the enlarged structure of the medium hybrid propulsion assembly;

[0051] Fig.10 for Fig. 9 A schematic detailed view of the plan structure along one of the angles;

[0052] Fig.11 for Fig.10 Detailed schematic diagram of the three-dimensional structure along the AA section;

[0053] Fig.12 for Fig.11 A schematic detailed diagram of the enlarged structure of part B;

[0054] Fig.13 for Fig.12 A detailed diagram of the enlarged structure of the secondary stirring blade and its surrounding parts;

[0055] Fig.14 for Fig.13 Detailed diagram of the structure after removing the shaft body;

[0056] Fig.15 for Fig.14 A schematic detailed view of the plan structure along one of the angles;

[0057] Fig.16 for Fig.15 Detailed schematic diagram of the three-dimensional structure along the CC section;

[0058] Fig.17 for Fig.16 The enlarged structural schematic detail diagram of the D part;

[0059] Fig.18 for Fig.17 Detailed diagram of the structure after the middle telescopic rod, sliding block and buffer limit spring are rotated to a certain angle.

[0060] In the figure: 1 a primary treatment unit, 2 a secondary treatment unit, 3 a support frame, 4 a primary mixing kettle, 5 a secondary mixing kettle, 6 a first motor, 7 a reduction gear set, 8 a second motor, 9 a reducer, 10 an electronically controlled discharge assembly, 11 a primary treatment assembly, 12 a rotating frame, 13 a first toothed disc, 14 a second toothed disc, 15 a first stirring rod, 16 a rotating shaft frame, 17 a second stirring rod, 18 a third motor, 19 a transmission gear cylinder, 20 a hollow rotating shaft, 21 a spiral blade, 22 a secondary stirring assembly, 23 a secondary stirring blade, 24 a hollow tube, 25 a secondary stirring rod, 26 a telescopic rod, 27 a shaft body, 28 a first bevel gear set, 29 a second bevel gear set, 30 a sliding block, 31 a buffer limit spring, 32 a V-shaped groove, 33 a rotating column, 34 a first frame, and 35 a second frame. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] Example 1: Reference Figure 1-Figure 6 , an early civil air defense project solid waste recycling filling equipment, used for the preparation of the above-mentioned slurry (the finished product after the mixed materials are mixed is slurry), including a primary disposal unit 1, and also including a secondary disposal unit 2 installed below the primary disposal unit 1;

[0063] The primary treatment unit 1 includes a primary mixing kettle 4 , a second motor 8 and a primary treatment component 11 . The second motor 8 drives the primary treatment component 11 to rotate to perform primary stirring on the mixture in the primary mixing kettle 4 .

[0064] The primary treatment assembly 11 includes a rotating frame 12, which is connected to the driving end of the second motor 8, and two first stirring rods 15 are fixedly installed on the rotating frame 12, and two rotating shaft frames 16 are rotatably installed on the rotating frame 12, and two second stirring rods 17 are fixedly installed on the two rotating shaft frames 16;

[0065] Two first gear discs 13 are fixedly installed in the primary mixing kettle 4 , and two second gear discs 14 are fixedly installed on the two rotating shaft frames 16 . A chain is sleeved between the two first gear discs 13 and the corresponding second gear discs 14 .

[0066] A reducer 9 is installed between the driving end of the second motor 8 and the rotating frame 12 to slow down the rotation speed of the rotating frame 12 to avoid splashing of the mixed material or centrifugal slurrying due to excessive rotation speed, which can improve the mixing efficiency to a certain extent.

[0067] The driving end of the second motor 8 rotates and is transmitted to the rotating frame 12 through the reducer 9, driving the rotating frame 12 to rotate. The rotation of the rotating frame 12 drives the first stirring rod 15 to revolve around the driving shaft of the second motor 8, and revolves and stirs the mixed material in the primary mixing kettle 4;

[0068] When the rotating frame 12 rotates, it will drive the rotating shaft frame 16 and the second stirring rod 17 to revolve around the driving shaft of the second motor 8. Under the action of the first gear plate 13, the second gear plate 14 and the chain, the rotating shaft frame 16 will be driven to rotate around the axis of the second gear plate 14, so that the second stirring rod 17 rotates and stirs at the same time as it revolves, thereby improving the stirring efficiency and making the mixed materials in the primary mixing kettle 4 more evenly mixed (because the first gear plate 13 is fixed and the second gear plate 14 revolves around the first gear plate 13, the chain will restrict the second gear plate 14, and as the second gear plate 14 revolves, the chain will drive the second gear plate 14 to rotate).

[0069] The bottom of the first stirring rod 15 adopts an inclined flap, which can flip the mixed material at the bottom of the primary mixing kettle 4 upwards to make the mixing more uniform.

[0070] Embodiment 2: This embodiment is different from the embodiment 1 in that: Figure 1-Figure 2 , Figure 4 , Figure 7-Figure 18 The secondary treatment unit 2 includes a secondary mixing kettle 5, a first motor 6, two hollow rotating shafts 20, two spiral blades 21 and a plurality of secondary stirring components 22. The first motor 6 drives the hollow rotating shaft 20 to rotate, driving the secondary stirring component 22 to rotate and stir. After stirring, the first motor 6 drives the spiral blades 21 to rotate to bring out the slurry in the secondary mixing kettle 5.

[0071] A support frame 3 is fixedly installed at the bottom of the secondary mixing kettle 5 for supporting the secondary mixing kettle 5. The first motor 6 is fixedly installed on the support frame 3. A reduction gear set 7 matched with the first motor 6 is installed on the support frame 3 for reducing the rotation speed of the first motor 6.

[0072] The two hollow rotating shafts 20 are both rotatably connected to the secondary mixing kettle 5, one of the hollow rotating shafts 20 is fixedly connected to the reduction gear set 7, and the two hollow rotating shafts 20 are transmitted through the transmission gear cylinder 19, and the rotation directions of the two hollow rotating shafts 20 are opposite;

[0073] The two spiral blades 21 are fixedly connected to the corresponding hollow rotating shaft 20 , and each secondary stirring component 22 is rotationally connected to the corresponding hollow rotating shaft 20 .

[0074] The primary mixing kettle 4 is fixedly installed on the upper part of the secondary mixing kettle 5 , and an electric control discharge assembly 10 is installed at the bottom of the primary mixing kettle 4 for placing the mixture mixed in the primary mixing kettle 4 into the secondary mixing kettle 5 .

[0075] The mixed material after the primary treatment unit 1 mixing will fall into the secondary mixing kettle 5 through the electronically controlled discharge component 10, then the electronically controlled discharge component 10 is closed, the first motor 6 is started, the driving end of the first motor 6 will be decelerated through the reduction gear set 7, and drive the hollow rotating shaft 20 fixedly connected to the reduction gear set 7 to rotate, the hollow rotating shaft 20 will drive another hollow rotating shaft 20 to rotate through the transmission gear cylinder 19, the two hollow rotating shafts 20 have opposite rotation directions, and the spiral directions of the spiral blades 21 on the two hollow rotating shafts 20 are also opposite, the hollow rotating shaft 20 will drive the spiral blades 21 to rotate, and bring the mixed mixed material out of the secondary mixing kettle 5.

[0076] An electric partition is fixedly installed inside the secondary mixing kettle 5, and the electric partition is installed between the spiral blade 21 and the secondary stirring assembly 22, which isolates the inside of the secondary mixing kettle 5 into two cavities: a mixing chamber and a discharge chamber. The mixing chamber is used for mixing the mixed materials, and the discharge chamber is used for discharging the mixed materials from the secondary mixing kettle 5 after mixing.

[0077] The secondary stirring assembly 22 includes a hollow tube 24 rotatably mounted on the side of the hollow rotating shaft 20, the hollow tube 24 penetrates and extends into the interior of the hollow rotating shaft 20, a secondary stirring blade 23 is fixedly mounted on one end of the hollow tube 24 away from the hollow rotating shaft 20, and an angle adjustment mechanism matched with the hollow tube 24 is installed on the support frame 3;

[0078] The angle adjustment mechanism includes a third motor 18 fixedly mounted on the support frame 3, a shaft 27 fixedly mounted on the driving end of the third motor 18, the shaft 27 extends into the hollow rotating shaft 20, and the shaft 27 and the hollow tube 24 are connected by a first bevel gear set 28 that meshes with each other.

[0079] A secondary stirring rod 25 is fixedly installed on the end of the telescopic column away from the first frame 34, and a second bevel gear set 29 is installed between the end of the telescopic column close to the first frame 34 and the hollow rotating shaft 20. One of the bevel gears in the second bevel gear set 29 is fixedly connected to the telescopic column, and a second frame 35 is fixedly installed inside the hollow rotating shaft 20, and another bevel gear is fixedly connected to the second frame 35.

[0080] The third motor 18 drives the shaft body 27 to rotate. First, when the rotation speed of the shaft body 27 is consistent with the rotation speed of the hollow rotating shaft 20, the first bevel gear set 28 will not be triggered to drive the hollow tube 24 to rotate. At this time, the hollow tube 24 remains stable (in the initial state, the secondary stirring blade 23 on the hollow tube 24 is designed to be inclined). At this time, the rotation of the hollow rotating shaft 20 will drive the inclined secondary stirring blade 23 to rotate. Since the secondary stirring blade 23 is inclined, when the secondary stirring blade 23 rotates around the hollow rotating shaft 20, it will push the side of the mixed material box in the secondary mixing kettle 5 close to the spiral blade 21 for unloading; second, when there is a speed difference between the rotation speed of the shaft body 27 and the hollow rotating shaft 20, the first bevel gear set 28 is triggered to drive the hollow tube 24 and the secondary stirring blade 23 to rotate around the axis of the hollow tube 24 for stirring. At this time, the secondary stirring blade 23 not only revolves around the hollow rotating shaft, but also rotates around the central axis of the hollow tube 24.

[0081] A first frame 34 is fixedly installed inside the hollow rotating shaft 20, and a telescopic rod 26 is slidably installed on the first frame 34. The telescopic rod 26 penetrates the hollow tube 24, and the telescopic rod 26 and the hollow tube 24 are rotatably connected. The telescopic end of the telescopic rod 26 can freely extend and retract in the hollow tube 24, and a driving mechanism is installed between the hollow tube 24 and the telescopic end of the telescopic rod 26;

[0082] The driving mechanism includes a sliding block 30 slidably mounted on the inner wall of the hollow tube 24, a V-shaped groove 32 is fixedly provided on the telescopic end of the telescopic rod 26, a rotating column 33 is rotatably mounted on the sliding block 30 and matched with the V-shaped groove 32, a buffer limit spring 31 is fixedly mounted between the sliding block 30 and the inner wall of the hollow tube 24, and the limit buffer spring 31 is 0.1 cm long. Its main function is to provide a buffer time for the meshing when the second bevel gear set 29 is meshed, so as to avoid a large degree of wear on the second bevel gear set 29.

[0083] The telescopic rod 26 is hollow in design, and a telescopic column is installed through the middle of the telescopic rod 26 . The telescopic column and the telescopic rod 26 are connected by a damping rotation. The damping rotation connection is to ensure that the telescopic column will not be rotated by the secondary stirring blade 23 .

[0084] When there is a differential speed between the shaft body 27 and the hollow rotating shaft 20, the hollow tube 24 rotates while the telescopic rod 26 does not rotate, so that a relative displacement occurs between the hollow tube 24 and the telescopic end of the telescopic rod 26. The relative displacement will drive the telescopic end of the telescopic rod 26 to move through the rotating column 33 and the V-shaped groove 32, thereby driving the telescopic end of the telescopic column to move. The movement of the telescopic end of the telescopic column will drive the bevel gear on the second bevel gear set 29 to move to the side close to the other bevel gear until the second bevel gear set 29 is meshed. At this time, the shaft body 27 will drive the telescopic column to rotate through the second bevel gear set 29, thereby driving the secondary stirring rod 25 to rotate.

[0085] Since the V-shaped groove 32 has two parts, two symmetrical V-shapes are formed on the telescopic end of the telescopic rod 26, so the rotating column 33 will reciprocate along the V-shaped groove 32 at the telescopic end of the telescopic rod 26, so that the second bevel gear set 29 is intermittently engaged and the secondary stirring rod 25 is intermittently rotated.

[0086] The early filling method of civil air defense projects includes the following steps:

[0087] S1. Firstly, coal gangue, construction waste, discarded bricks, concrete blocks and tailings are made into uniform particles to form finished aggregate;

[0088] S2. Then, a quantitative aggregate is weighed using an aggregate weighing scale, and the finished aggregate is added into the above-mentioned early civil air defense project solid waste recycling filling equipment, and a reasonable amount of fly ash is added to increase the liquid density while ensuring that no water seepage occurs, and the finished aggregate is matched according to the specific gravity to achieve physical suspension of the aggregate;

[0089] S3. Subsequently, a proper amount of cement and activator are weighed by a micro powder scale, and the cement and activator are put into the early civil air defense project solid waste recycling filling equipment, and finally water is added into the early civil air defense project solid waste recycling filling equipment, and the aggregate, water, cement and activator mixture are stirred and mixed in the early civil air defense project solid waste recycling filling equipment to form a mixed slurry;

[0090] S4. After stirring and mixing for a certain period of time, the mixture is mixed evenly, and then the slurry formed by the mixture is sent to the interior of the civil air defense project through a pump.

[0091] The solid waste recycling filling materials of early civil air defense projects, such as the mixed slurry mentioned above, include aggregate, binder and activator;

[0092] Aggregates are engineering solid waste, including coal gangue, construction waste, discarded bricks, concrete blocks and uniform particles after tailings are crushed;

[0093] Binder: Cement, used to improve the final setting strength and increase the safety factor after backfilling;

[0094] Activator: After combining with liquid, the liquid is transformed into aggregate with good integrity. Wherever water can flow, there is supporting strength, which guarantees the quality of backfill and ensures that the filling body does not shrink.

[0095] The mixing ratio of the aggregate, the binder and the water is 2-3:1:0.4-0.6, and the content of the binder is 10%-15% of the total mass of the aggregate, the binder and the water mixture.

[0096] Use solid waste (coal gangue, construction waste, discarded bricks, concrete blocks, tailings, etc.) to crush and process into uniform particles as finished aggregate, add a reasonable amount of fly ash to increase the liquid density while ensuring no water seepage, and mix the finished aggregate according to the specific gravity to make the aggregate physically suspended and achieve the best fluidity. After adding fly ash, the liquid does not seep water, and the backfill material can utilize fluidity to fill the entire backfill space, solving the problems of early internal cleaning, exploration, structural assessment, and support setting of early civil air defense projects, reducing the workload in the early stage, and avoiding unknown safety hazards when people enter.

[0097] Add a reasonable amount of binder (cement, activator, etc.) to ensure the final setting strength and increase the safety factor after backfilling. From an environmental protection perspective, although the backfill material cannot completely replace the original rock and soil characteristics, it will not pollute the environment after solidification.

[0098] The filling material has a very fast solidification time and can complete the filling of the underground space in a short time, thereby improving production efficiency;

[0099] The filling material has low cost of use and has the advantages of high compressive strength and high durability, which can reduce the scrap rate during the disposal process and improve the overall economic benefits of the filling area;

[0100] The filling material has the following advantages: first, the filling body has uniform density, good quality stability, and beautiful appearance, which is conducive to subsequent construction and renovation; second, it has good integrity and good waterproof performance after solidification; third, it reduces costs while ensuring strength; fourth, it has good fluidity, simple construction, and low difficulty; fifth, the filling system is simple.

[0101] The specific operation steps of this device are as follows:

[0102] A certain amount of aggregate, cement and activator are weighed and put into the primary mixing kettle 4, and then the second motor 8 is started. The driving end of the second motor 8 rotates and is transmitted to the rotating frame 12 through the reducer 9, driving the rotating frame 12 to rotate. The rotation of the rotating frame 12 drives the first stirring rod 15 to revolve around the driving shaft of the second motor 8, and the mixed material in the primary mixing kettle 4 is revolved and stirred;

[0103] When the rotating frame 12 rotates, it will drive the rotating shaft frame 16 and the second stirring rod 17 to revolve around the driving shaft of the second motor 8. Under the action of the first gear plate 13, the second gear plate 14 and the chain, the rotating shaft frame 16 will be driven to rotate around the axis of the second gear plate 14, so that the second stirring rod 17 revolves and rotates while stirring, thereby improving the stirring efficiency and making the mixed materials in the primary mixing kettle 4 mixed more evenly.

[0104] After the mixing in the primary mixing kettle 4 is completed, the electronically controlled discharge component 10 is opened to put the mixed material in the primary mixing kettle 4 into the secondary mixing kettle 5, and then the electronically controlled discharge component 10 is closed;

[0105] Then, the first motor 6 is started, and the driving end of the first motor 6 is decelerated by the reduction gear set 7, driving the hollow rotating shaft 20 fixedly connected to the reduction gear set 7 to rotate, and the hollow rotating shaft 20 drives another hollow rotating shaft 20 to rotate through the transmission gear cylinder 19 (the electric control partition is closed at this time), and at the same time, the third motor 18 is started:

[0106] 1. When the rotation speed of the shaft body 27 is consistent with the rotation speed of the hollow rotating shaft 20, the first bevel gear set 28 will not trigger the hollow tube 24 to rotate. At this time, the hollow tube 24 remains stable (in the initial state, the secondary stirring blade 23 on the hollow tube 24 is designed to be inclined). At this time, the rotation of the hollow rotating shaft 20 will drive the inclined secondary stirring blade 23 to rotate. Since the secondary stirring blade 23 is inclined, the secondary stirring blade 23 will push the side of the mixed material box in the secondary mixing kettle 5 close to the spiral blade 21 when rotating around the hollow rotating shaft 20 for unloading;

[0107] 2. When there is a speed difference between the rotation speed of the shaft body 27 and the hollow rotating shaft 20, the first bevel gear set 28 is triggered to drive the hollow tube 24 and the secondary stirring blade 23 to rotate around the axis of the hollow tube 24 to stir. At this time, the secondary stirring blade 23 not only revolves around the hollow rotating shaft, but also rotates around the central axis of the hollow tube 24.

[0108] When there is a differential speed between the shaft body 27 and the hollow rotating shaft 20, the hollow tube 24 rotates while the telescopic rod 26 does not rotate, so that a relative displacement occurs between the hollow tube 24 and the telescopic end of the telescopic rod 26. The relative displacement will drive the telescopic end of the telescopic rod 26 to move through the rotating column 33 and the V-shaped groove 32, thereby driving the telescopic end of the telescopic column to move. The movement of the telescopic end of the telescopic column will drive the bevel gear on the second bevel gear set 29 to move to the side close to the other bevel gear until the second bevel gear set 29 is meshed. At this time, the shaft body 27 will drive the telescopic column to rotate through the second bevel gear set 29, thereby driving the secondary stirring rod 25 to rotate.

[0109] Since the V-shaped groove 32 has two parts, two symmetrical V-shapes are formed on the telescopic end of the telescopic rod 26, so the rotating column 33 will reciprocate along the V-shaped groove 32 at the telescopic end of the telescopic rod 26, so that the second bevel gear set 29 is intermittently engaged and the secondary stirring rod 25 is intermittently rotated.

[0110] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An early civil air defense project solid waste recycling and filling device, comprising a primary disposal unit (1), characterized in that: It also includes a secondary treatment unit (2) installed below the primary treatment unit (1); The primary treatment unit (1) comprises a primary mixing kettle (4), a second motor (8) and a primary treatment component (11), wherein the second motor (8) drives the primary treatment component (11) to rotate to perform primary stirring on the mixture in the primary mixing kettle (4); The secondary treatment unit (2) comprises a secondary mixing kettle (5), a first motor (6), two hollow rotating shafts (20), two spiral blades (21) and a plurality of secondary stirring components (22). The first motor (6) drives the hollow rotating shaft (20) to rotate, thereby driving the secondary stirring components (22) to rotate and stir. After stirring, the first motor (6) drives the spiral blades (21) to rotate to bring out the slurry in the secondary mixing kettle (5).

2. The early civil air defense project solid waste recycling filling equipment according to claim 1 is characterized in that: The primary treatment assembly (11) comprises a rotating frame (12), the rotating frame (12) being connected to the driving end of the second motor (8), two first stirring rods (15) being fixedly mounted on the rotating frame (12), and two rotating shaft frames (16) being rotatably mounted on the rotating frame (12), and two second stirring rods (17) being fixedly mounted on the two rotating shaft frames (16); Two first toothed discs (13) are fixedly installed in the primary mixing kettle (4), a second toothed disc (14) is fixedly installed on each of the two rotating shaft frames (16), and a chain is sleeved between each of the two first toothed discs (13) and the corresponding second toothed disc (14).

3. The early civil air defense project solid waste recycling filling equipment according to claim 1 is characterized in that: The primary mixing kettle (4) is fixedly mounted on the upper part of the secondary mixing kettle (5), and an electric-controlled discharge assembly (10) is mounted at the bottom of the primary mixing kettle (4) for placing the mixture mixed in the primary mixing kettle (4) into the secondary mixing kettle (5).

4. The early civil air defense project solid waste recycling filling equipment according to claim 1 is characterized in that: A support frame (3) is fixedly mounted on the bottom of the secondary mixing kettle (5) for supporting the secondary mixing kettle (5); the first motor (6) is fixedly mounted on the support frame (3); a reduction gear set (7) matched with the first motor (6) is mounted on the support frame (3) for reducing the rotation speed of the first motor (6); The two hollow rotating shafts (20) are both rotatably connected to the secondary mixing kettle (5), one of the hollow rotating shafts (20) is fixedly connected to the reduction gear set (7), the two hollow rotating shafts (20) are transmitted via a transmission gear cylinder (19), and the rotation directions of the two hollow rotating shafts (20) are opposite; The two spiral blades (21) are fixedly connected to the corresponding hollow rotating shaft (20), and each of the secondary stirring components (22) is rotationally connected to the corresponding hollow rotating shaft (20).

5. The early civil air defense project solid waste recycling filling equipment according to claim 4 is characterized in that: An electric partition is fixedly installed inside the secondary mixing kettle (5), and the electric partition is installed between the spiral blade (21) and the secondary stirring component (22), isolating the inside of the secondary mixing kettle (5) into two cavities, a mixing chamber and a discharge chamber. The mixing chamber is used for mixing the mixed materials, and the discharge chamber is used for discharging the mixed materials from the secondary mixing kettle (5) after mixing.

6. The early civil air defense project solid waste recycling filling equipment according to claim 4 is characterized in that: The secondary stirring assembly (22) comprises a hollow tube (24) rotatably mounted on the side of the hollow rotating shaft (20), the hollow tube (24) penetrates and extends into the interior of the hollow rotating shaft (20), a secondary stirring blade (23) is fixedly mounted on one end of the hollow tube (24) away from the hollow rotating shaft (20), and an angle adjustment mechanism matched with the hollow tube (24) is mounted on the support frame (3); A first frame (34) is fixedly installed inside the hollow rotating shaft (20), a telescopic rod (26) is slidably installed on the first frame (34), the telescopic rod (26) passes through the hollow tube (24), and the telescopic rod (26) and the hollow tube (24) are rotatably connected, the telescopic end of the telescopic rod (26) is freely telescopic in the hollow tube (24), and a driving mechanism is installed between the hollow tube (24) and the telescopic end of the telescopic rod (26); The telescopic rod (26) is of hollow design, and a telescopic column is installed through the middle of the telescopic rod (26). The telescopic column and the telescopic rod (26) are connected in a damped rotational manner. A secondary stirring rod (25) is fixedly installed at one end of the telescopic column away from the first frame (34). A second bevel gear set (29) is installed between one end of the telescopic column close to the first frame (34) and the hollow rotating shaft (20). One bevel gear of the second bevel gear set (29) is fixedly connected to the telescopic column. A second frame (35) is fixedly installed inside the hollow rotating shaft (20), and another bevel gear is fixedly connected to the second frame (35).

7. The early civil air defense project solid waste recycling filling equipment according to claim 6 is characterized in that: The angle adjustment mechanism comprises a third motor (18) fixedly mounted on the support frame (3); a shaft (27) is fixedly mounted on the driving end of the third motor (18); the shaft (27) extends into the interior of the hollow rotating shaft (20); the shaft (27) and the hollow tube (24) are connected and rotated via a first bevel gear set (28) that meshes with each other.

8. The early civil air defense project solid waste recycling filling equipment according to claim 6 is characterized in that: The driving mechanism comprises a sliding block (30) slidably mounted on the inner wall of the hollow tube (24); a V-shaped groove (32) is fixedly provided on the telescopic end of the telescopic rod (26); a rotating column (33) matching the V-shaped groove (32) is rotatably mounted on the sliding block (30); and a buffer limit spring (31) is fixedly mounted between the sliding block (30) and the inner wall of the hollow tube (24).

9. Early filling method for civil air defense projects, characterized in that: The following steps are involved: S1. Firstly, coal gangue, construction waste, discarded bricks, concrete blocks and tailings are made into uniform particles to form finished aggregate; S2, then use an aggregate weighing scale to weigh a certain amount of aggregate, add the finished aggregate into the early civil air defense project solid waste recycling filling equipment as claimed in claim 1, add a reasonable amount of fly ash to increase the liquid density while ensuring that there is no water seepage, and match the finished aggregate according to the specific gravity to achieve physical suspension of the aggregate; S3. Subsequently, a proper amount of cement and activator are weighed by a micro powder scale, and the cement and activator are put into the early civil air defense project solid waste recycling filling equipment, and finally water is added into the early civil air defense project solid waste recycling filling equipment, and the aggregate, water, cement and activator mixture are stirred and mixed in the early civil air defense project solid waste recycling filling equipment to form a mixed slurry; S4. After stirring and mixing for a certain period of time, the mixture is mixed evenly, and then the slurry formed by the mixture is sent to the interior of the civil air defense project through a pump.

10. The recycled filling material of solid waste from early civil air defense projects, the mixed slurry as claimed in claim 9, comprising aggregate, characterized in that: It also includes a binder and an activator; Aggregates are engineering solid waste, including coal gangue, construction waste, discarded bricks, concrete blocks and uniform particles after tailings are crushed; Binder: Cement, used to improve the final setting strength and increase the safety factor after backfilling; Activator: After combining with liquid, the liquid is transformed into aggregate with good integrity. Wherever water can flow, there is supporting strength, which guarantees the quality of backfill and ensures that the filling body does not shrink. The mixing ratio of the aggregate, the binder and the water is 2-3:1:0.4-0.6, and the content of the binder is 10%-15% of the total mass of the aggregate, the binder and the water mixture.

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