A method for synergistic resource utilization of landfill leachate and fly ash

Abstract

The invention discloses a method for coordinated resource utilization of landfill leachate and fly ash, and relates to the technical field of hazardous chemical treatment. The method comprises a bucket elevator. The method provides a fly ash feeding hopper at the input end of the bucket elevator, and a fly ash conveying pipeline at the output end of the bucket elevator. The fly ash is conveyed to a liquid-ash combining mechanism by the bucket elevator. A leachate sealing tank is connected to the bottom end of the liquid-ash combining mechanism by a water pump, and the landfill leachate is pumped into the liquid-ash combining mechanism by the water pump. The fly ash pumped into the liquid-ash combining mechanism is fully fused with the leachate by the liquid-ash combining mechanism to form a raw material for brick making. The method utilizes the landfill leachate and fly ash to utilize waste materials, and fuses them to prepare raw materials for brick making, thereby turning waste into treasure, reducing the pressure of subsequent treatment of the landfill leachate and fly ash and the possible pollution risk to the environment, and also reducing the cost of raw materials for brick making, which is conducive to a new process in the field of hazardous chemical treatment.

Description

Technical Field

[0001] The invention relates to the technical field of hazardous chemical treatment, and more specifically to a method for coordinated resource utilization of landfill leachate and fly ash. Background Art

[0002] In modern society, garbage disposal is a key link in the sustainable development of cities. Garbage treatment plants are faced with the dual challenges of garbage leachate and fly ash treatment.

[0003] The composition of landfill leachate is complex, including a large amount of organic matter, heavy metals and ammonia nitrogen, etc. Traditional treatment methods are difficult to make it meet the requirements of emission management standards. In order to meet the standards, high treatment costs are required, including a large amount of chemical agents, energy and labor costs.

[0004] As a waste incineration product, fly ash contains potentially useful elements such as silicon, aluminum, and calcium that can be used to make building bricks, but it also carries harmful substances such as heavy metals and dioxins. If not handled properly, it will cause serious pollution to the environment. It is difficult to handle and the cost of handling it should not be underestimated.

[0005] At present, the recycling of garbage and waste has become a widely studied topic. Existing technologies attempt to combine fly ash after dioxin removal with leachate after sedimentation treatment for brick making, hoping to partially replace traditional brick making raw materials. However, the current method of mixing and stirring alone has poor fusion between the two and cannot give full play to their respective advantages. Fly ash is difficult to disperse evenly, and the effective ingredients in the leachate cannot fully react with the fly ash, resulting in unsatisfactory brick making results, which limits the large-scale application of this resource utilization approach.

[0006] Therefore, there is an urgent need for a method and device that can promote the full combination of fly ash and leachate, while reducing the treatment cost, effectively solving the environmental and cost problems faced when the two are treated separately, and improving the resource recovery rate. In view of this, we propose a method for the coordinated resource utilization of landfill leachate and fly ash. Summary of the invention

[0007] The object of the present invention is to provide a method for the coordinated resource utilization of landfill leachate and fly ash, so as to solve the technical problem that the existing fusion efficiency of leachate and fly ash is low.

[0008] To solve the above technical problems, the present invention provides the following technical solutions: a method for the coordinated resource utilization of landfill leachate and fly ash, the method comprising a device, the device comprising a bucket elevator, a fly ash inlet hopper is provided at the inlet end of the bucket elevator, a leachate sealing tank is provided on the side of the bucket elevator away from the fly ash inlet hopper, a supporting mechanism is provided on the leachate sealing tank, a liquid-ash combining mechanism is provided on the supporting mechanism, a water pump is provided at the bottom end of the liquid-ash combining mechanism, a water inlet end of the water pump is connected to the leachate sealing tank, a water outlet end of the water pump is connected to the liquid-ash combining mechanism, an input end of the liquid-ash combining mechanism is connected to the discharging end of the bucket elevator through a fly ash conveying pipeline, an ash raising mechanism is further provided inside the fly ash conveying pipeline, a discharging hopper is provided on the side of the leachate sealing tank away from the bucket elevator, and an output end of the liquid-ash combining mechanism is connected to the discharging hopper through a combined material conveying pipeline.

[0009] Preferably, the supporting mechanism includes a supporting rod, a bearing hanger and a carrier, the supporting rod is arranged at a position close to the front of the top of the leachate sealing tank, the bearing hanger is arranged at a position close to the back of the top of the leachate sealing tank, the carrier is arranged at an end of the bearing hanger close to the supporting rod, one end of the liquid-ash combining mechanism is connected to the supporting rod, and the other end of the liquid-ash combining mechanism is connected to the bearing hanger.

[0010] Preferably, the liquid ash combining mechanism includes a shell assembly, a forward and reverse driving assembly, a rotating and evenly spraying assembly and a fly ash scattering assembly, the shell assembly is arranged at the top of the support rod, one end of the forward and reverse driving assembly is arranged on the carrier, the other end of the forward and reverse driving assembly is arranged at the bottom end of the shell assembly, the top end of the rotating and evenly spraying assembly is rotatably suspended on the supporting hanging plate, the other end of the rotating and evenly spraying assembly is arranged on the shell assembly, and the fly ash scattering assembly is rotatably arranged inside the shell assembly.

[0011] Preferably, the shell assembly includes a fixed top shell, a through hole and a rotating chassis, the fixed top shell is fixedly connected to the top end of the support rod, the through hole is opened on the fixed top shell, the rotary spray assembly passes through the through hole and is rotatably connected to the supporting hanger plate, the fly ash scattering assembly is rotatably arranged inside the fixed top shell, the rotating chassis is fixedly connected to the bottom end of the fly ash scattering assembly, and the forward and reverse drive assembly is connected to the bottom end of the rotating chassis at one end away from the carrier.

[0012] Preferably, the forward and reverse driving assembly includes a servo motor, a gear A and a gear B. The servo motor is arranged on the carrier, the gear A is fixedly sleeved on the output end of the servo motor, the gear B is fixedly sleeved on the bottom end of the rotary spraying assembly, one side of the gear A is meshedly connected to the gear B, and the other side of the gear A is meshedly connected to the bottom end of the fly ash scattering assembly.

[0013] Preferably, the rotary spray assembly includes a rotating nozzle and a rotary sleeve, the top end of the rotating nozzle passes through the through hole and is rotatably connected to the supporting hanger plate, the gear B is fixedly sleeved on the bottom end of the rotating nozzle, and the rotary sleeve is fixedly sleeved on the outer wall of the rotating nozzle.

[0014] Preferably, a rotating shaft is provided at the top of the rotating nozzle, one end of the rotating shaft is fixedly connected to the top of the rotating nozzle, the other end of the rotating shaft passes through the through hole and is rotatably connected to the supporting hanger plate, the outer wall of the rotating nozzle is provided with mounting grooves in a circular shape with equal intervals, the rotating sleeve is sleeved on the mounting groove, and the outer wall of the rotating nozzle is also provided with a plurality of nozzles in a circular shape with equal intervals.

[0015] Preferably, an adapting groove is provided on the rotating sleeve, and the adapting groove is fixedly sleeved on the mounting groove. The rotating sleeve is also provided with maze grooves at equal intervals in a circular shape. The water outlet end of the water pump is rotatably connected to the bottom end of the rotating nozzle, and the water pump, the rotating nozzle, the nozzle and the maze groove are connected.

[0016] Preferably, the fly ash scattering assembly includes a rotating ring, a connecting column, scattering blades and an engaging gear column. The rotating ring is rotatably arranged on the inner wall of the fixed top shell, the connecting column is fixedly connected between the two rotating rings, the scattering blades are arranged on the inner wall of the rotating ring in a ring shape with equal spacing, the engaging gear column is arranged at the bottom end of the rotating ring in a ring shape with equal spacing, and the engaging gear column is meshingly connected to the gear A.

[0017] Preferably, the ash raising mechanism comprises a motor, a rotating column, a hemispherical top cover, a fixed inner cover, a fixed sleeve column, a convex groove, a fitting connecting block, an ash raising block and a sliding column, the motor is arranged at the bottom end of the fly ash conveying pipeline, the rotating column is connected to the motor output end, the hemispherical top cover is connected to the end of the rotating column away from the motor, the fixed sleeve column is fixedly arranged on the inner bottom wall of the fly ash conveying pipeline, the fixed inner cover is fixedly arranged on the top end of the fixed sleeve column, the convex grooves are arranged on the outer wall of the fixed inner cover in an annular manner with equal intervals, the fitting connecting blocks are connected to the inner wall of the fixed inner cover in an annular manner with equal intervals, the ash raising block is rotatably connected to the hemispherical top cover in an annular manner with equal intervals, one end of the sliding column is symmetrically fixedly connected to the inner end of the ash raising block, and the other end of the sliding column is slidably arranged between the convex groove and the fitting connecting block.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention arranges a fly ash feeding hopper at the input end of a bucket elevator, arranges a fly ash conveying pipeline at the output end of the bucket elevator, conveys the fly ash to a liquid-ash combining mechanism through the bucket elevator, connects a leachate sealing tank at the bottom of the liquid-ash combining mechanism through a water pump, pumps the garbage leachate into the liquid-ash combining mechanism through the water pump, and fully fuses the fly ash and leachate pumped into the liquid-ash combining mechanism through the liquid-ash combining mechanism to form a raw material for brick making. The present invention utilizes the garbage leachate and fly ash to utilize the waste materials, fuses them to prepare raw materials for brick making, turns waste into treasure, reduces the pressure of subsequent treatment of the garbage leachate and fly ash and the possible pollution risk to the environment, and also reduces the cost of raw materials for brick making, which is conducive to a new process in the field of hazardous chemical treatment.

[0020] 2. In the present invention, the forward and reverse driving components are used to drive the uniform rotation spray component and the fly ash scattering component to rotate in opposite directions. The fly ash scattering component will evenly scatter the sucked fly ash in the shell component, and the uniform rotation spray component will rotate and spray the garbage leachate concentrate sucked by the water pump, so that the garbage leachate concentrate and the evenly scattered fly ash will have sufficient collision and even fusion, and the two can be in multi-angle and all-round contact in a larger spatial range, thereby achieving more uniform and sufficient fusion, which greatly ensures the uniformity of the component mixing of the brick-making raw materials, is conducive to the stable development of the subsequent brick-making process and the improvement of the quality of the finished bricks.

[0021] 3. In the present invention, the servo motor is driven to drive the gear A to rotate, the gear A meshes to drive the gear B to rotate, the gear B drives the rotating nozzle to rotate, the rotating nozzle drives the rotating shaft to penetrate through the through hole and rotate on the bearing hanger plate, the bottom end of the rotating nozzle is connected to the leachate sealing tank through the water pump, the adapting groove of the rotating sleeve and the mounting groove of the rotating nozzle are adapted to each other, so that when the rotating nozzle rotates, the rotating sleeve is driven to rotate synchronously, the leachate is pumped into the rotating nozzle through the water pump, sprayed into the curvature groove of the rotating sleeve through the nozzle, and then rotated and thrown out through the curvature groove, so that the leachate can be more dispersed in the process of throwing out. , evenly distributed in the corresponding space, avoiding the situation of excessive or insufficient local leachate spraying, ensuring the uniform spraying of the leachate in the entire area, and better contact with the fly ash. Because it is in the form of rotating swing, it will increase the chances of collision and blending between the leachate and fly ash. Compared with simple linear spraying, it is more helpful to break up the possible agglomeration between the materials, so that the leachate can fully wrap the fly ash particles, etc., greatly improving the quality and effect of the mixing of the two, thereby ensuring the uniformity of the composition of the brick-making raw materials, and laying the foundation for the subsequent production of high-quality bricks.

[0022] 4. In the present invention, the servo motor is driven to drive the gear A to rotate, and the gear A is meshed with the meshing tooth column, so that the meshing tooth column drives the rotating ring to rotate on the inner wall of the fixed top shell, and the rotating ring drives the connecting column at the top to rotate, and the connecting column drives another group of rotating rings at its top to rotate, and the rotating ring drives the scattering blades arranged in a circular shape with equal intervals on its inner wall to rotate. When the scattering blades rotate, suction is generated to suck the fly ash raised by the ash raising mechanism into the fly ash conveying pipeline, and the fly ash is fully mixed with the leachate and discharged from the combined material conveying pipeline. During the rotation process, the scattering blades can not only suck in the fly ash, but also the rotating action can further scatter the sucked fly ash in the space, thereby increasing the contact area and contact opportunity between the fly ash and the leachate, allowing the leachate to better wrap the fly ash particles, making the material mixing more delicate and uniform, which helps to reduce the problem of uneven quality of finished bricks caused by uneven mixing, and improve the overall consistency and quality standards of the product.

[0023] 5. In the present invention, the rotating column is driven to rotate by a driving motor, and the rotating column drives the hemispherical top cover to rotate. The rotation of the hemispherical top cover causes the ash-raising block and the sliding column inserted on the outer wall of the hemispherical top cover to rotate accordingly. When the sliding column slides into the inverted V-shaped gap formed by the convex groove of the fixed inner cover and the matching connecting block, the sliding column slides and turns in the gap, driving the ash-raising block to turn on the outer wall of the hemispherical top cover. When the ash-raising block turns over, the fly ash deposited at the bottom of the fly ash conveying pipeline is lifted up, which is convenient for the fly ash scattering component to inhale. The deposited fly ash is often easy to accumulate and agglomerate, which is difficult to be automatically The fly ash can flow naturally to participate in the subsequent processes, and the flipping action of the ash-raising block can break the accumulation of fly ash, make it loose again and be lifted up, ensuring that the fly ash can continuously and stably enter the subsequent treatment process, avoiding the interruption or uneven supply of materials due to fly ash deposition. The deposited fly ash is actively lifted and transported to the subsequent links through the ash-raising mechanism, which improves the efficiency and quality of fly ash participation in mixing, helps to improve the quality of finished bricks, and reduce quality defects in bricks due to uneven distribution of fly ash. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention from a viewing angle;

[0025] Figure 2 It is a schematic structural diagram of the overall present invention from another perspective;

[0026] Figure 3 It is a schematic diagram of the structure of the leachate sealing tank, the supporting mechanism, the water pump, the liquid-ash combining mechanism and the combined product conveying pipeline of the present invention;

[0027] Figure 4 It is a cross-sectional structural schematic diagram of the fly ash conveying pipeline and the liquid ash combining mechanism of the present invention;

[0028] Figure 5 It is a schematic diagram of the bottom structure of the liquid-ash combining mechanism of the present invention;

[0029] Figure 6 It is a schematic diagram of the split structure of the liquid-ash combining mechanism of the present invention;

[0030] Figure 7 It is a schematic cross-sectional view of the structure of the rotary spraying assembly of the present invention;

[0031] Figure 8 It is a schematic diagram of the cross-sectional structure of the rotating nozzle of the present invention;

[0032] Fig. 9 It is a schematic diagram of the structure of the fly ash scattering assembly of the present invention;

[0033] Fig.10 It is a schematic diagram of the motion state of the rotary spraying assembly and the fly ash scattering assembly of the present invention;

[0034] Fig.11 It is a cross-sectional view of the fly ash conveying pipeline and a schematic diagram of the structure of the ash raising mechanism of the present invention;

[0035] Fig.12 It is a partial cross-sectional structural schematic diagram of the dust raising mechanism of the present invention;

[0036] Fig.13 It is a schematic diagram of the split structure of the dust raising mechanism of the present invention.

[0037] Description of the numbers in the figure:

[0038] 1. Bucket elevator; 2. Fly ash inlet hopper; 3. Leachate sealing tank; 4. Support mechanism; 5. Liquid-ash combination mechanism; 6. Water pump; 7. Fly ash conveying pipeline; 8. Ash raising mechanism; 9. Combined material conveying pipeline; 10. Discharge hopper;

[0039] 401, support rod; 402, load-bearing hanging plate; 403, carrier;

[0040] 501, housing assembly; 502, forward and reverse driving assembly; 503, rotary spraying assembly; 504, fly ash scattering assembly;

[0041] 5011, fixed top shell; 5012, through hole; 5013, rotating bottom plate;

[0042] 5021, servo motor; 5022, gear A; 5023, gear B;

[0043] 5031, rotating nozzle; 5032, rotating sleeve; 5033, rotating shaft; 5034, mounting groove; 5035, nozzle; 5036, adapter groove; 5037, curved groove;

[0044] 5041, rotating ring; 5042, connecting column; 5043, scattering blades; 5044, meshing gear column;

[0045] 801, motor; 802, rotating column; 803, hemispherical top cover; 804, fixed inner cover; 805, fixed sleeve column; 806, convex groove; 807, fitting connecting block; 808, dust raising block; 809, sliding column. DETAILED DESCRIPTION

[0046] like Figures 1 to 13 As shown, the present invention relates to a method for coordinated resource utilization of landfill leachate and fly ash, and the method is implemented based on a device, which is characterized in that it includes a bucket elevator 1, a fly ash feeding hopper 2 is provided at the feeding end of the bucket elevator 1, a leachate sealing tank 3 is provided on the side of the bucket elevator 1 away from the fly ash feeding hopper 2, a supporting mechanism 4 is provided on the leachate sealing tank 3, a liquid-ash combining mechanism 5 is provided on the supporting mechanism 4, a water pump 6 is provided at the bottom end of the liquid-ash combining mechanism 5, the water inlet end of the water pump 6 is connected to the leachate sealing tank 3, the water outlet end of the water pump 6 is connected to the liquid-ash combining mechanism 5, the input end of the liquid-ash combining mechanism 5 is connected to the discharging end of the bucket elevator 1 through a fly ash conveying pipeline 7, an ash raising mechanism 8 is further provided inside the fly ash conveying pipeline 7, a discharging hopper 10 is provided on the side of the leachate sealing tank 3 away from the bucket elevator 1, and the output end of the liquid-ash combining mechanism 5 is connected to the discharging hopper 10 through a binder conveying pipeline 9. The present invention arranges a fly ash feeding hopper 2 at the input end of a bucket elevator 1, arranges a fly ash conveying pipeline 7 at the output end of the bucket elevator 1, conveys the fly ash to a liquid-ash combining mechanism 5 through the bucket elevator 1, connects a leachate sealing tank 3 to the bottom end of the liquid-ash combining mechanism 5 through a water pump 6, pumps the garbage leachate into the liquid-ash combining mechanism 5 through the water pump 6, and fully fuses the fly ash and leachate pumped into the liquid-ash combining mechanism 5 through the liquid-ash combining mechanism 5 to form a raw material for brick making. The present invention utilizes the garbage leachate and fly ash to utilize the waste materials, fuses them to prepare raw materials for brick making, turns waste into treasure, reduces the pressure of subsequent treatment of the garbage leachate and fly ash and the possible pollution risk to the environment, and also reduces the cost of raw materials for brick making, which is conducive to new progress in the field of hazardous chemical treatment.

[0047] In the embodiment of the present invention, the support mechanism 4 includes a support rod 401, a bearing hanger plate 402 and a carrier 403. The support rod 401 is arranged at the top of the leachate sealed tank 3 near the front, the bearing hanger plate 402 is arranged at the top of the leachate sealed tank 3 near the back, and the carrier 403 is arranged at the end of the bearing hanger plate 402 near the support rod 401. One end of the liquid-ash combination mechanism 5 is connected to the support rod 401, and the other end of the liquid-ash combination mechanism 5 is connected to the bearing hanger plate 402. In the present invention, three support rods 401 and one bearing hanger plate 402 are arranged at the top of the leachate sealed tank 3 to support the liquid-ash combination mechanism 5, wherein the three support rods 401 are fixedly arranged in a triangular shape in front of the top of the leachate sealed tank 3, and the carrier 403 is fixedly arranged on the bearing hanger plate 402 to carry the driving components of the liquid-ash combination mechanism 5.

[0048] In an embodiment of the present invention, the liquid ash combining mechanism 5 includes a shell assembly 501, a forward and reverse driving assembly 502, a rotating and spraying assembly 503 and a fly ash scattering assembly 504. The shell assembly 501 is arranged at the top of the support rod 401, one end of the forward and reverse driving assembly 502 is arranged on the carrier 403, and the other end of the forward and reverse driving assembly 502 is arranged at the bottom of the shell assembly 501. The top of the rotating and spraying assembly 503 is rotatably suspended on the supporting hanging plate 402, and the other end of the rotating and spraying assembly 503 is arranged on the shell assembly 501, and the fly ash scattering assembly 504 is rotatably arranged inside the shell assembly 501. In the present invention, the forward and reverse driving components 502 drive the uniform rotation spray component 503 and the fly ash scattering component 504 to rotate in opposite directions. The fly ash scattering component 504 evenly scatters the sucked fly ash in the shell component 501, and the uniform rotation spray component 503 rotates and sprays the garbage leachate concentrate sucked by the water pump 6, so that the garbage leachate concentrate and the evenly scattered fly ash have sufficient collision and are evenly fused. The two can be in multi-angle and all-round contact in a larger spatial range, thereby achieving more uniform and sufficient fusion, which greatly ensures the uniformity and consistency of the component mixing of the brick-making raw materials, is conducive to the stable development of the subsequent brick-making process and the improvement of the quality of the finished bricks.

[0049] In an embodiment of the present invention, the shell assembly 501 includes a fixed top shell 5011, a through hole 5012 and a rotating chassis 5013. The fixed top shell 5011 is fixedly connected to the top of the support rod 401. The through hole 5012 is opened on the fixed top shell 5011. The rotary spray assembly 503 passes through the through hole 5012 and is rotatably connected to the supporting suspension plate 402. The fly ash scattering assembly 504 is rotatably arranged inside the fixed top shell 5011. The rotating chassis 5013 is fixedly connected to the bottom end of the fly ash scattering assembly 504. The end of the forward and reverse drive assembly 502 away from the carrier 403 is connected to the bottom end of the rotating chassis 5013.

[0050] In an embodiment of the present invention, the forward and reverse driving component 502 includes a servo motor 5021, a gear A5022 and a gear B5023. The servo motor 5021 is arranged on the carrier 403, the gear A5022 is fixedly sleeved on the output end of the servo motor 5021, the gear B5023 is fixedly sleeved on the bottom end of the uniform rotation spraying component 503, one side of the gear A5022 is meshedly connected to the gear B5023, and the other side of the gear A5022 is meshedly connected to the bottom end of the fly ash scattering component 504.

[0051] In the present invention, the servo motor 5021 is driven to drive the gear A5022 to rotate, the gear A5022 is engaged to drive the gear B5023 to rotate, the gear B5023 drives the uniform rotation spraying assembly 503 to rotate on the load-bearing hanging plate 402, and the other side of the gear A5022 is engaged with the fly ash scattering assembly 504 to drive the fly ash scattering assembly 504 to rotate. Since the gear A5022 is engaged with the gear B5023, the gear A5022 and the gear B5023 rotate in opposite directions, and the gear A5022 drives the fly ash scattering assembly 504 to rotate in the same direction. Therefore, the uniform rotation spraying assembly 503 and the fly ash scattering assembly 504 rotate in opposite directions.

[0052] As another embodiment of the present invention, the rotary spray assembly 503 includes a rotating nozzle 5031 and a rotary sleeve 5032. The top of the rotating nozzle 5031 passes through a through hole 5012 and is rotatably connected to the supporting hanger 402. The gear B5023 is fixedly mounted on the bottom end of the rotating nozzle 5031, and the rotary sleeve 5032 is fixedly mounted on the outer wall of the rotating nozzle 5031.

[0053] As another embodiment of the present invention, a rotating shaft 5033 is provided at the top of the rotating nozzle 5031, one end of the rotating shaft 5033 is fixedly connected to the top of the rotating nozzle 5031, and the other end of the rotating shaft 5033 passes through a through hole 5012 and is rotatably connected to the supporting hanging plate 402. The outer wall of the rotating nozzle 5031 is provided with mounting grooves 5034 at equal intervals in a circular shape, and a rotating sleeve 5032 is sleeved on the mounting groove 5034. The outer wall of the rotating nozzle 5031 is also provided with a plurality of nozzles 5035 at equal intervals in a circular shape.

[0054] An adapting groove 5036 is provided on the rotating sleeve 5032, and the adapting groove 5036 is fixedly sleeved on the mounting groove 5034. The rotating sleeve 5032 is also provided with maze grooves 5037 in a circular shape with equal intervals. The water outlet end of the water pump 6 is rotatably connected to the bottom end of the rotating nozzle 5031, and the water pump 6, the rotating nozzle 5031, the nozzle 5035 and the maze groove 5037 are connected.

[0055] In the present invention, the servo motor 5021 is driven to drive the gear A5022 to rotate, the gear A5022 is meshed to drive the gear B5023 to rotate, the gear B5023 drives the rotating nozzle 5031 to rotate, the rotating nozzle 5031 drives the rotating shaft 5033 to penetrate through the through hole 5012 and rotate on the bearing hanger 402, the bottom end of the rotating nozzle 5031 is connected to the leachate sealing tank 3 through the water pump 6, the adapting groove 5036 of the rotating sleeve 5032 and the mounting groove 5034 of the rotating nozzle 5031 are adapted to each other, so that when the rotating nozzle 5031 rotates, the rotating sleeve 5032 is driven to rotate synchronously, and the leachate is pumped into the rotating nozzle 5031 through the water pump 6 and sprayed into the rotating sleeve 5031 through the nozzle 5035. The tortuous groove 5037 of 32 is then rotated and thrown out through the tortuous groove 5037, so that the leachate can be distributed in the corresponding space in a relatively dispersed and uniform state during the throwing process, avoiding the situation where the local leachate is sprayed too much or too little, ensuring that the leachate is evenly sprayed in the whole area and can better contact with the fly ash. Due to the form of rotating throwing, the chances of collision and blending between the leachate and the fly ash are increased. Compared with simple linear spraying, it is more helpful to break the possible agglomeration between the materials, so that the leachate can fully wrap the fly ash particles, etc., greatly improving the quality and effect of the mixing of the two, thereby ensuring the uniformity of the composition of the brick-making raw materials, and laying the foundation for the subsequent production of high-quality bricks.

[0056] As another embodiment of the present invention, the fly ash scattering assembly 504 includes a rotating ring 5041, a connecting column 5042, scattering blades 5043 and an engaging gear column 5044. The rotating ring 5041 is rotatably arranged on the inner wall of the fixed top shell 5011, the connecting column 5042 is fixedly connected between the two rotating rings 5041, the scattering blades 5043 are arranged on the inner wall of the rotating ring 5041 in a ring shape with equal intervals, the engaging gear column 5044 is arranged at the bottom end of the rotating ring 5041 in a ring shape with equal intervals, and the engaging gear column 5044 is meshedly connected to the gear A5022.

[0057] In the present invention, the servo motor 5021 is driven to drive the gear A5022 to rotate, and the gear A5022 is meshed with the meshing tooth column 5044, so that the meshing tooth column 5044 drives the rotating ring 5041 to rotate on the inner wall of the fixed top shell 5011, and the rotating ring 5041 drives the connecting column 5042 at the top to rotate, and the connecting column 5042 drives another group of rotating rings 5041 at the top to rotate, and the rotating ring 5041 drives the scattering blades 5043 arranged in a circular shape with equal spacing on the inner wall thereof to rotate, and when the scattering blades 5043 rotate, suction is generated. The fly ash raised by the ash raising mechanism 8 in the fly ash conveying pipeline 7 is sucked in, fully mixed with the leachate and then discharged from the combined material conveying pipeline 9. During the rotation process, the scattering blades 5043 can not only suck in the fly ash, but also further scatter the sucked fly ash in the space due to their rotating action, thereby increasing the contact area and contact opportunity between the fly ash and the leachate, allowing the leachate to better wrap the fly ash particles, making the material mixing more delicate and uniform, helping to reduce the problem of uneven quality of finished bricks due to uneven mixing, and improving the overall consistency and quality standards of the products.

[0058] As another embodiment of the present invention, the ash raising mechanism 8 includes a motor 801, a rotating column 802, a hemispherical top cover 803, a fixed inner cover 804, a fixed sleeve column 805, a convex groove 806, a fitting block 807, an ash raising block 808 and a sliding column 809. The motor 801 is arranged at the bottom end of the fly ash conveying pipeline 7, the rotating column 802 is connected to the output end of the motor 801, the hemispherical top cover 803 is connected to the end of the rotating column 802 away from the motor 801, and the fixed sleeve column 805 is fixedly arranged at the fly ash conveying pipeline 7. On the inner bottom wall of the pipeline 7, the fixed inner cover 804 is fixedly arranged on the top of the fixed sleeve column 805, the convex grooves 806 are arranged in a circular shape with equal intervals on the outer wall of the fixed inner cover 804, the matching connecting blocks 807 are connected to the inner wall of the fixed inner cover 804 in a circular shape with equal intervals, the dust raising block 808 is rotatably connected to the hemispherical top cover 803 in a circular shape with equal intervals, one end of the sliding column 809 is symmetrically fixedly connected to the inner end of the dust raising block 808, and the other end of the sliding column 809 is slidably arranged between the convex groove 806 and the matching connecting block 807.

[0059] In the present invention, the rotating column 802 is driven to rotate by the driving motor 801, and the rotating column 802 drives the hemispherical top cover 803 to rotate. The rotation of the hemispherical top cover 803 causes the ash-raising block 808 and the sliding column 809 inserted on the outer wall thereof to rotate accordingly. When the sliding column 809 slides into the inverted V-shaped gap formed by the convex groove 806 of the fixed inner cover 804 and the fitting connecting block 807, the sliding column 809 slides and turns in the gap, driving the ash-raising block 808 to turn over on the outer wall of the hemispherical top cover 803. When the ash-raising block 808 turns over, the fly ash deposited at the bottom of the fly ash conveying pipeline 7 is raised, which is convenient for the fly ash scattering component 5 04 Inhalation. The deposited fly ash is often easy to accumulate and clump, and it is difficult to flow naturally to participate in the subsequent process. With the help of the flipping action of the ash-raising block 808, the accumulation state of the fly ash can be broken, and it can be loosened again and lifted up, ensuring that the fly ash can continuously and stably enter the subsequent processing flow, avoiding the interruption or uneven supply of materials due to fly ash deposition. The ash-raising mechanism 8 actively lifts the deposited fly ash and transports it to the subsequent links, which improves the efficiency and quality of fly ash participation in mixing, helps to improve the quality of finished bricks, and reduces quality defects in the brick body due to uneven distribution of fly ash.

[0060] Working principle: This embodiment provides a method for the coordinated resource utilization of landfill leachate and fly ash, comprising the following steps:

[0061] S1, raw material preparation operation;

[0062] Pour the fly ash raw material mixed with waste incineration fly ash, light-burned magnesium, sepiolite powder, coal gangue powder and sodium silicate into the fly ash hopper 2;

[0063] S2, fly ash and leachate transportation operations;

[0064] S2.1, fly ash transportation;

[0065] The bucket elevator 1 lifts the fly ash raw material into the fly ash conveying pipeline 7, and the driving motor 801 drives the rotating column 802 to rotate, and the rotating column 802 drives the hemispherical top cover 803 to rotate. The rotation of the hemispherical top cover 803 causes the ash-raising block 808 and the sliding column 809 inserted on the outer wall thereof to rotate accordingly. When the sliding column 809 slides into the inverted V-shaped gap formed by the convex groove 806 of the fixed inner cover 804 and the fitting connecting block 807, the sliding column 809 slides and turns in the gap, driving the ash-raising block 808 to turn on the outer wall of the hemispherical top cover 803. When the ash-raising block 808 turns over, the fly ash deposited at the bottom of the fly ash conveying pipeline 7 is lifted up, so that the fly ash scattering component 504 can be sucked in.

[0066] S2.2, leachate transportation;

[0067] Connect the leachate sealing tank 3 via the water pump 6, and pump the garbage leachate into the rotating nozzle 5031 via the water pump 6;

[0068] S3, deep mixing operation of fly ash and leachate;

[0069] The servo motor 5021 is driven to rotate the gear A5022, the gear A5022 is meshed to drive the gear B5023 to rotate, the gear B5023 drives the rotating nozzle 5031 to rotate, the rotating nozzle 5031 drives the rotating shaft 5033 to pass through the through hole 5012 and rotate on the load-bearing hanging plate 402, the bottom end of the rotating nozzle 5031 is connected to the leachate sealing tank 3 through the water pump 6, the adapting groove 5036 of the rotating sleeve 5032 and the mounting groove 5034 of the rotating nozzle 5031 are adapted to each other, so that when the rotating nozzle 5031 rotates, the rotating sleeve 5032 is driven to rotate synchronously, and the leachate is pumped into the rotating nozzle 5031 through the water pump 6 and sprayed into the tortuous groove of the rotating sleeve 5032 through the nozzle 5035. 5037, and then rotated and thrown out through the curved groove 5037; at the same time, the servo motor 5021 drives the gear A5022 to rotate, and the gear A5022 meshes with the meshing tooth column 5044, so that the meshing tooth column 5044 drives the rotating ring 5041 to rotate on the inner wall of the fixed top shell 5011, and the rotating ring 5041 drives the connecting column 5042 at the top to rotate, and the connecting column 5042 drives another group of rotating rings 5041 at the top to rotate, and the rotating ring 5041 drives the scattering blades 5043 arranged in a circular shape with equal spacing on the inner wall thereof to rotate. When the scattering blades 5043 rotate, suction is generated to suck the fly ash raised by the ash raising mechanism 8 into the fly ash conveying pipeline 7, and the fly ash is fully mixed with the leachate and discharged from the combined material conveying pipeline 9;

[0070] S4, forming and curing operations;

[0071] The mixed brick material is discharged into the discharge hopper 10 through the combination conveying pipeline 9, waiting for subsequent molding.

[0072] The ratio of waste incineration fly ash, light-burned magnesium, sepiolite powder, coal gangue powder and sodium silicate in the present invention is:

[0073] Waste incineration fly ash: 100 parts;

[0074] Light-burned magnesium: 5-15 parts;

[0075] Sepiolite powder: 5-15 parts;

[0076] Gangue powder: 5~15 parts;

[0077] Sodium silicate: 2.5~12.5 parts;

[0078] When the proportion of the mixed powders is 100 parts, the proportion of the leachate is 20-40 parts.

[0079] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A method for the coordinated resource utilization of landfill leachate and fly ash, the method is implemented based on a device, the device is characterized in that: The invention comprises a bucket elevator (1), wherein a fly ash inlet hopper (2) is provided at the inlet end of the bucket elevator (1), a leachate sealing tank (3) is provided on the side of the bucket elevator (1) away from the fly ash inlet hopper (2), a support mechanism (4) is provided on the leachate sealing tank (3), a liquid-ash combining mechanism (5) is provided on the support mechanism (4), a water pump (6) is provided at the bottom end of the liquid-ash combining mechanism (5), a water inlet end of the water pump (6) is connected to the leachate sealing tank (3), and the leachate sealing tank (3) is provided with a support mechanism (4). The water outlet of the water pump (6) is connected to the liquid-ash combination mechanism (5), the input end of the liquid-ash combination mechanism (5) is connected to the discharge end of the bucket elevator (1) via a fly ash conveying pipeline (7), an ash raising mechanism (8) is also provided inside the fly ash conveying pipeline (7), a discharge hopper (10) is provided on the side of the leachate sealing tank (3) away from the bucket elevator (1), and the output end of the liquid-ash combination mechanism (5) is connected to the discharge hopper (10) via a combined material conveying pipeline (9); The method comprises the following steps: Step 1: Raw material preparation operation; Mix the raw materials according to the proportion, namely 100 parts of waste incineration fly ash, 10 parts of light-burned magnesia, 10 parts of sepiolite powder, 10 parts of coal gangue powder and 7.5 parts of sodium silicate, and then pour the mixed fly ash raw materials into the fly ash hopper (2); Step 2: fly ash and leachate transportation operation; Fly ash transportation: The bucket elevator (1) delivers 100 portions of prepared fly ash raw materials to the fly ash transportation pipeline (7), and drives the ash raising mechanism (8) to raise the fly ash deposited at the bottom of the fly ash transportation pipeline (7) to facilitate the inhalation of the liquid ash combining mechanism (5); Leachate transportation: when the weight of the mixed powder is 100 parts, the leachate is mixed at a ratio of 30 parts and pumped from the leachate sealing tank (3) to the liquid-ash combining mechanism (5) via a water pump (6); Step 3: deep mixing of fly ash and leachate; The liquid-ash combining mechanism (5) is driven to generate suction to suck in the lifted-off ash, which is then fully mixed with the leachate and discharged from the combined material conveying pipeline (9); Step 4: Forming and curing operations; The mixed brick material is discharged into the discharge hopper (10) through the combined material conveying pipeline (9) to wait for subsequent molding; The liquid-ash combining mechanism (5) comprises a shell assembly (501), a forward and reverse driving assembly (502), a rotating and spraying assembly (503) and a fly ash scattering assembly (504); the rotating and spraying assembly (503) comprises a rotating nozzle (5031) and a rotating and spraying sleeve (5032); the rotating and spraying sleeve (5032) is fixedly sleeved on the outer wall of the rotating nozzle (5031); the outer wall of the rotating nozzle (5031) is also provided with a plurality of nozzles (5035) at equal intervals in the form of a ring; the rotating and spraying sleeve (5032) is also provided with a maze groove (5037) at equal intervals in the form of a ring; the water pump (6), the rotating nozzle (5031), the nozzles (5035) and the maze groove (5037) are connected; The forward and reverse driving component (502) drives the uniform rotation spray component (503) and the fly ash scattering component (504) to rotate in opposite directions. The fly ash scattering component (504) evenly scatters the sucked fly ash in the shell component (501), and the uniform rotation spray component (503) rotates and sprays the garbage leachate raw liquid sucked by the water pump (6), so that the garbage leachate raw liquid and the evenly scattered fly ash fully collide with each other.

2. The method for synergistic resource utilization of landfill leachate and fly ash according to claim 1, characterized in that: The support mechanism (4) comprises a support rod (401), a bearing hanger plate (402) and a carrier (403); the support rod (401) is arranged at a position close to the front of the top of the leachate sealing tank (3); the bearing hanger plate (402) is arranged at a position close to the back of the top of the leachate sealing tank (3); the carrier (403) is arranged at one end of the bearing hanger plate (402) close to the support rod (401); one end of the liquid-ash combining mechanism (5) is connected to the support rod (401); and the other end of the liquid-ash combining mechanism (5) is connected to the bearing hanger plate (402).

3. The method for synergistic resource utilization of landfill leachate and fly ash according to claim 2, characterized in that: The liquid-ash combining mechanism (5) comprises a shell component (501), a forward and reverse driving component (502), a rotating and spraying component (503) and a fly ash scattering component (504); the shell component (501) is arranged at the top end of the support rod (401); one end of the forward and reverse driving component (502) is arranged on the carrier (403); the other end of the forward and reverse driving component (502) is arranged at the bottom end of the shell component (501); the top end of the rotating and spraying component (503) is rotatably suspended on the supporting suspension plate (402); the other end of the rotating and spraying component (503) is arranged on the shell component (501); and the fly ash scattering component (504) is rotatably arranged inside the shell component (501).

4. The method for synergistic resource utilization of landfill leachate and fly ash according to claim 3 is characterized in that: The shell assembly (501) comprises a fixed top shell (5011), a through hole (5012) and a rotating chassis (5013); the fixed top shell (5011) is fixedly connected to the top end of the support rod (401); the through hole (5012) is opened on the fixed top shell (5011); the rotary spray assembly (503) passes through the through hole (5012) and is rotatably connected to the supporting hanging plate (402); the fly ash scattering assembly (504) is rotatably arranged inside the fixed top shell (5011); the rotating chassis (5013) is fixedly connected to the bottom end of the fly ash scattering assembly (504); and the end of the forward and reverse driving assembly (502) away from the carrier (403) is connected to the bottom end of the rotating chassis (5013).

5. The method for synergistic resource utilization of landfill leachate and fly ash according to claim 4, characterized in that: The forward and reverse driving component (502) comprises a servo motor (5021), a gear A (5022) and a gear B (5023); the servo motor (5021) is arranged on the carrier (403); the gear A (5022) is fixedly sleeved on the output end of the servo motor (5021); the gear B (5023) is fixedly sleeved on the bottom end of the rotary spraying component (503); one side of the gear A (5022) is meshingly connected to the gear B (5023); and the other side of the gear A (5022) is meshingly connected to the bottom end of the fly ash scattering component (504).

6. The method for synergistic resource utilization of landfill leachate and fly ash according to claim 5, characterized in that: The top end of the rotating nozzle (5031) passes through the through hole (5012) and is rotatably connected to the supporting hanging plate (402), and the gear B (5023) is fixedly sleeved on the bottom end of the rotating nozzle (5031).

7. The method for synergistic resource utilization of landfill leachate and fly ash according to claim 6, characterized in that: A rotating shaft (5033) is provided at the top of the rotating nozzle (5031), one end of the rotating shaft (5033) is fixedly connected to the top of the rotating nozzle (5031), and the other end of the rotating shaft (5033) passes through the through hole (5012) and is rotatably connected to the supporting hanging plate (402). The outer wall of the rotating nozzle (5031) is provided with mounting grooves (5034) at equal intervals in a circular shape, and the rotating sleeve (5032) is sleeved on the mounting groove (5034).

8. The method for synergistic resource utilization of landfill leachate and fly ash according to claim 7, characterized in that: An adapting groove (5036) is provided on the rotating sleeve (5032), and the adapting groove (5036) is fixedly sleeved on the mounting groove (5034). The water outlet end of the water pump (6) is rotatably connected to the bottom end of the rotating nozzle (5031).

9. The method for synergistic resource utilization of landfill leachate and fly ash according to claim 8, characterized in that: The fly ash scattering assembly (504) comprises a rotating ring (5041), a connecting column (5042), scattering blades (5043) and a meshing tooth column (5044); the rotating ring (5041) is rotatably arranged on the inner wall of the fixed top shell (5011); the connecting column (5042) is fixedly connected between the two rotating rings (5041); the scattering blades (5043) are arranged on the inner wall of the rotating ring (5041) in a ring shape with equal intervals; the meshing tooth column (5044) is arranged at the bottom end of the rotating ring (5041) in a ring shape with equal intervals; and the meshing tooth column (5044) is meshingly connected to the gear A (5022).

10. A method for the coordinated resource utilization of landfill leachate and fly ash according to claim 9, wherein the ash-raising mechanism (8) comprises a motor (801), a rotating column (802), a hemispherical top cover (803), a fixed inner cover (804), a fixed sleeve column (805), a convex groove (806), a fitting block (807), an ash-raising block (808) and a sliding column (809), wherein the motor (801) is arranged at the bottom end of the fly ash conveying pipeline (7), the rotating column (802) is connected to the output end of the motor (801), the hemispherical top cover (803) is connected to the end of the rotating column (802) away from the motor (801), and the fixed sleeve column (805) is connected to the output end of the motor (801). 05) is fixedly arranged on the inner bottom wall of the fly ash conveying pipeline (7), the fixed inner cover (804) is fixedly arranged on the top of the fixed sleeve column (805), the convex groove (806) is opened on the outer wall of the fixed inner cover (804) in a circular shape with equal intervals, the fitting block (807) is connected to the inner wall of the fixed inner cover (804) in a circular shape with equal intervals, the ash-raising block (808) is rotatably connected to the hemispherical top cover (803) in a circular shape with equal intervals, one end of the sliding column (809) is symmetrically fixedly connected to the inner end of the ash-raising block (808), and the other end of the sliding column (809) is slidably arranged between the convex groove (806) and the fitting block (807).

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