Highway reconstruction and expansion project solid waste recycling equipment

Abstract

This invention relates to the field of construction waste treatment technology, specifically to a solid waste recycling device for highway reconstruction and expansion projects. The device includes a mounting base, with multiple support columns fixedly connected to one side of the top of the mounting base. Each support column has a buffer leg fixedly connected to its top, and a top support column is fixedly connected to the top of each buffer leg. An asphalt heating and filtration structure is installed at the top of each top support column. A multi-stage crushing and recycling structure is installed on the other side of the top of the mounting base. The asphalt heating and filtration structure includes a heating box fixed to the top of the top support column. A mounting beam is fixedly connected to one side of the outer wall of the heating box, and limit sleeves are fixedly connected to both sides of the top of the mounting beam. The advantages of this invention are that, compared to traditional split-type processing equipment, this equipment eliminates the need for intermediate transfer and storage areas, reduces the overall footprint, has high adaptability, and offers better waste utilization of solid asphalt, making it more convenient to use.

Description

Technical Field

[0001] This invention relates to the field of construction waste treatment technology, specifically to a solid waste recycling device for highway reconstruction and expansion projects. Background Technology

[0002] Construction waste refers to waste generated during various construction, demolition, and renovation processes. This waste mainly includes waste bricks, waste concrete, waste mortar, waste metal, waste wood, waste plastics, waste glass, and waste ceramics. Construction waste is an important component of urban solid waste, and its treatment and disposal are of great significance for environmental protection and resource recycling. The construction and expansion of highways generate a significant amount of construction waste, such as asphalt concrete.

[0003] In the prior art, patent document CN223811304U discloses a sorting and recycling device for solid waste recycling of construction waste, which relates to the field of construction waste treatment technology. It includes a treatment box and an adjustment structure. An inlet is fixedly connected to the outer wall of the treatment box, and two slide rails are fixedly connected to the inner wall of the treatment box. A filter screen is slidably connected inside the slide rails. Several first rotating shafts are rotatably connected inside the treatment box. The device adjusts the spray angle of several nozzles through the adjustment structure, ensuring that the high-pressure water flow from the nozzles covers all surfaces of the construction waste, guaranteeing thorough and uniform cleaning of each part and improving overall cleaning efficiency. The device uses the cooperation of a first synchronous wheel, a second synchronous wheel, and a synchronous belt to drive the two second rotating shafts and cleaning brushes to rotate. The rotation of the cleaning brushes and the cooperation of the high-pressure water flow further clean the impurities on the surface of the construction waste, effectively removing soil and dust. However, the above-mentioned technical solutions require separate installation of asphalt heating and purification equipment for construction waste such as asphalt. The two sets of equipment operate separately, resulting in cumbersome transfer procedures and a large construction area. Furthermore, the crushing effect is poor, relying solely on single-stage crushing rollers, leading to uneven particle size, incomplete screening of large solid waste, and a low rate of qualified recycled aggregate. Moreover, the asphalt purity is low, with waste asphalt mixtures containing mud, sand, and gravel impurities. Traditional heating methods lack filtration and ventilation structures for impurity removal, resulting in high impurity content after asphalt purification, poor secondary paving performance, and easy material adhesion and blockage. Waste asphalt becomes highly viscous when heated, easily agglomerating after crushing. Ordinary processing lacks a dispersing and mixing structure, easily causing blockage at the discharge port. Therefore, this invention provides a solid waste recycling equipment for highway reconstruction and expansion projects to solve the problems mentioned in the background technology.

[0004] Summary of the Invention [A51] This invention addresses the technical problems existing in the prior art by providing a solid waste recycling equipment for highway reconstruction and expansion projects. This solves the problems of cumbersome transfer procedures, large construction area requirements, poor crushing effect, high impurity content after asphalt purification, poor secondary paving performance, and easy material adhesion and blockage. [A52] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A [A53] solid waste recycling equipment for highway reconstruction and expansion projects, including a mounting base, a plurality of support columns are fixedly connected to one side of the top of the mounting base, a buffer support foot is fixedly connected to the top of the plurality of [A54][A55] the buffer support foot is fixedly connected to the top of each [A56] the top of the buffer support foot is fixedly connected to the top support column, and an [A57] asphalt heating and filtering structure is provided at the top of the top support column; The top of the mounting base is provided with a multi-stage crushing and regeneration structure.

[0005] Based on the above technical solution, the present invention can be further improved as follows.

[0006] Furthermore, the asphalt heating and filtering structure includes a heating box fixed to the top of the top support column. An installation beam is fixedly connected to one side of the outer wall of the heating box. Two limiting sleeves [A61][A62] are symmetrically fixedly connected to the top of the installation beam [A60]. A limiting rod is slidably connected to the inner wall of each of the two limiting sleeves. A hydraulic pump [A63][A64] is fixedly connected to the center of the top of the installation beam. The output end of the hydraulic pump passes through one side of the outer wall of the heating box through a fixing frame [A65][A66]. An internal pusher plate is fixedly connected to the output end of the hydraulic pump.

[0007] Furthermore, controllers are fixedly connected to both sides of the outer wall of the heating box, and at least one ventilation fan [A69][A70] is fixedly connected to one side of the outer wall adjacent to each controller [A67][A68]. At least one ventilation fan passes through the ventilation openings to the other two sides of the outer wall of the heating box.

[0008] Furthermore, an inner box is fixedly connected inside the heating box [A71][A72]. Mounting bases are fixedly connected to both sides of the inner box [A73][A74], and the internal pusher plate is located in the inner box [A75]. Multiple heating coils [A76] penetrate through the outer walls of the two mounting bases. Multiple heating sections are installed at equal intervals on the outer walls of the multiple heating coils. One end of each heating section [A77] is fixedly connected to the outer wall of the inner box.

[0009] Furthermore, the top of the inner box is provided with a top mounting seat, and the top of the top mounting seat is fixedly connected to the feed inlet [A78][A79], and the bottom of the inner box is fixedly installed with a bottom asphalt outlet [A80][A81], and the bottom of the bottom asphalt outlet is fixedly connected to an asphalt tank.

[0010] The beneficial effects of adopting the above-mentioned further scheme are as follows: the mounting base is a single thickened steel plate base, with multiple sets of support columns vertically fixed on one side of the base. The top of the support columns is equipped with buffer feet, which have built-in shock-absorbing spring structures to absorb high-frequency vibrations generated during crushing and heating operations, reduce equipment noise, and prevent structural loosening and cracking. The top support column is equipped with an asphalt heating and filtering structure for heating and purifying waste asphalt mixtures. On the other side of the mounting base, a multi-stage crushing and recycling structure is arranged to realize road solid waste crushing and screening, with left and right sections operating separately without interference. The integrated structure significantly reduces the construction footprint. A crossbeam is fixedly installed on the outside of the heating box as the mounting base for the hydraulic mechanism. A limiting sleeve is symmetrically arranged at the top of the crossbeam, with a limiting rod slidingly inserted inside the limiting sleeve to ensure the linear movement of the pusher plate and prevent deviation and jamming. A hydraulic pump is fixed at the center of the crossbeam, and the output end of the hydraulic pump is inserted into the heating box through a fixing frame, with the end fixed to the internal pusher plate. The hydraulic telescopic movement drives the internal pusher plate to move and push the asphalt material, accelerating the melting and permeation filtration of asphalt, while cleaning the waste material adhering to the inner wall of the box to avoid material residue and clumping. The heating chamber has symmetrically fixed controllers on both sides for manual adjustment of heating temperature and operation time. Each controller is equipped with two ventilation fans, and the four fans are symmetrically arranged to form a convection ventilation duct. The fans align with the ventilation openings on the side walls of the heating chamber, penetrating and connecting to the interior of the chamber. During operation, this accelerates the circulation of hot air inside the chamber, reducing the surface temperature. An inner chamber is fixedly nested within the heating chamber, with an internal pusher plate sliding against the inner wall to compress the waste asphalt mixture. This also pushes the melted asphalt solid waste to subsequent crushing processes. Multiple heating coils are horizontally fixed through mounting bases. Heating sections are evenly spaced on the outer wall of the coils, conforming to the outer wall of the inner chamber for circumferential heating, eliminating heating dead zones and ensuring uniform heating of the material. A top mounting base is fixed at the top of the inner chamber for sealing the feed inlet. A bottom asphalt outlet is located at the bottom of the inner chamber, where the molten and filtered liquid asphalt automatically flows downwards. The outlet connects to an asphalt tank for storage.

[0011] Furthermore, the multi-stage crushing and regeneration structure includes a guide pipe fixed to one side of the outer wall of the heating box, [A82][A83] the other end of the guide pipe away from the heating box [A84][A85] is fixedly connected to a crushing box [A86][A87], and one end of the guide pipe passes through the heating box and communicates with the inner box, at least one [A88][A89] blowing fan is fixedly connected to one side of the outer wall of the crushing box, and a blocking box is fixedly connected to the other side of the outer wall of the crushing box, and a collecting box is fixedly connected to the bottom end of the blocking box.

[0012] Furthermore, a drive motor is installed at the top of the mounting base on one side of the crushing box, and a transmission gear set is installed at the output end of the drive motor. The transmission gear set is installed on one side of the outer wall of the crushing box through a limiting rod 2. A meshing gear set is installed on one side of the output end of the drive motor on the transmission gear set. The meshing gear set has two bottom crushing rollers that mesh with each other [A92][A93] and are coaxially fixed [A90][A91].

[0013] Furthermore, a bevel gear set is connected to one side of the outer wall of the first transmission gear set. The outer wall of the first bevel gear set is fixed to one side of the outer wall of the crushing box [A94][A95] by the second mounting seat. The bottom end of the first bevel gear set is meshed with a second bevel gear set. One side of the second bevel gear set is connected to a transmission wheel set by a rotating rod. One side of the transmission wheel set is installed on the other side of the outer wall of the crushing box (3) [A96] by a mounting rod. One side of the transmission wheel set is connected to the second transmission gear set.

[0014] Furthermore, one side of the outer wall of the second transmission gear set is connected to the second meshing gear set via a drive rod. The second meshing gear set has two coaxially fixed stirring rods [A97], which are located inside the crushing box [A98][A99]. Both the second transmission gear set and the second meshing gear set are located inside the transmission box on one side of the outer wall of the crushing box [A100][A101].

[0015] Furthermore, a bottom discharge box is fixedly connected to the bottom end of the crushing box, and multiple meshing teeth are installed inside the bottom discharge box [A102][A103], each of the multiple meshing teeth corresponding to the bottom crushing roller.

[0016] The beneficial effects of the above-mentioned further scheme are as follows: the side wall of the heating box is connected to the guide pipe, and the internal pusher plate can push the hard waste residue after heating and separation into the crushing box for continuous crushing processing; a blowing fan is installed on one side of the crushing box, and a high-speed airflow blows away light impurities and dust; a blocking box is installed on the other side to prevent large particles of aggregate from overflowing, thus achieving separation of light and heavy materials; the lower end of the blocking box is connected to the collection box to collect fine-sized recycled aggregate; a drive motor is fixed at the upper end of the mounting base, and the output end of the motor is connected to the first transmission gear set, which is fixed to the outer wall of the crushing box by the second limit rod to ensure the coaxiality of the gear transmission and prevent transmission deviation; the output end of the motor is synchronously equipped with the first meshing gear set, and the power is transmitted to the bottom crushing roller; the two bottom crushing rollers are hinged to each other and rotate in opposite directions to form a squeezing and shearing crushing zone, which strongly squeezes and crushes the waste material; the outer side of the first transmission gear set meshes with the first transmission bevel gear set, realizing the reversal of horizontal power transmission to the vertical direction; the first bevel gear set is fixed to the outer wall of the heating box by the second mounting base, and the lower end of the first bevel gear set meshes with the first bevel gear set. Second, the transmission direction is reversed again; the rotating rod drives the transmission wheel set to rotate, and the transmission wheel set is positioned and fixed by the mounting rod; the end of the wheel set is connected to the second transmission gear set to complete the step-by-step power transmission and provide power to the upper stirring mechanism. The outer side of the second transmission gear set is connected to the second meshing gear set via a drive rod. All gears are enclosed and housed inside the transmission box to prevent dust and slag from getting stuck and to avoid sand and gravel impurities from jamming the gears. Two stirring rods are installed on the inner side of the second meshing gear set, and the stirring rods extend into the crushing box; the stirring rods rotate continuously to break up lumpy materials. The waste residue adhering to the inner wall of the crushing box is scraped off to improve the uniformity of crushing and reduce clogging. The bottom of the crushing box is fixed with a discharge box as the discharge channel for finished aggregate, which centrally guides the crushed recycled sand and gravel. The discharge box is densely packed with multiple sets of meshing teeth. The teeth are made of high-strength wear-resistant alloy material. The meshing teeth correspond one-to-one with the position of the crushing roller at the bottom. After the material is squeezed by the roller, it falls between the meshing teeth and is meshed and ground again to reduce the particle size and ensure uniform crushing particle size, which meets the standards for use as aggregate in highway subgrade and subbase.

[0017] The beneficial effects of this invention are: [A104] 1) This invention compactly integrates the asphalt heating and purification chamber with the multi-stage crushing and regeneration mechanism on the same device, realizing automatic conveying of heated waste into the crushing box without manual transfer or external conveying equipment, and the solid waste processing process is smooth and continuous; the entire device is supported by the mounting base, and all transmission components and material collection components are attached to the outside and bottom of the box, without external redundant supports, resulting in extremely high space utilization. Compared with traditional split processing equipment, this equipment eliminates the intermediate transfer and stacking area, reduces the overall footprint, and has high adaptability.

[0018] 2) This invention achieves uniform heating of the inner box in all directions without dead angles through multiple sets of surrounding heating coils and heating sections, avoiding the problems of local high-temperature carbonization and local low-temperature incomplete melting; combined with the hydraulic pump to horizontally push the internal push plate, the asphalt mixture in the molten state is physically squeezed and filtered to accelerate the penetration and separation of liquid asphalt [A105], while ventilation fans are symmetrically arranged on both sides to form a convection air duct [A106][A107]. The purified asphalt has a low impurity content and can be directly reused in the surface paving of highways.

[0019] 3) This invention features a dual crushing process: primary compression crushing and secondary fine grinding [A108][A109]. Two sets of counter-rotating bottom crushing rollers powerfully shear, compress, and coarsely crush the falling material, rapidly breaking down large solid waste. Combined with high-density alloy meshing teeth for interlocking fine grinding, this further compresses the aggregate particle size [A110]. Furthermore, a continuously rotating stirring rod breaks up agglomerated materials, scrapes away adhering waste residue from the inner wall of the crushing chamber, and improves crushing uniformity, eliminating blockages at their source. The dual crushing mode ensures distinct crushing stages, preventing the mixing of large and small particles [A111]. The resulting recycled aggregate has a regular particle shape, high hardness, and reasonable gradation, fully meeting the standards for use as backfill aggregate in highway subgrade and water-stabilized layer backfills. This significantly improves the utilization rate of recycled aggregate. 4) This invention addresses the problems of asphalt solid waste being prone to sticking when heated and clumping when crushed. A high-speed rotating stirring rod is installed inside the crushing box to continuously scrape off the waste residue adhering to the inner wall of the box and actively break up the clumps of the mixture to prevent material compaction and blockage at the discharge point. At the same time, blowing fans are symmetrically arranged on the outside of the crushing box, which, together with the material blocking box on the other side, form a directional wind separation duct. The difference in gravity is used to separate light dust, fine impurities and fine aggregates, so as to realize the automatic diversion and collection of impurities, dust and finished aggregates. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention from another angle [A112]; Figure 3 This is a schematic diagram of the connection structure of the material blocking box of the present invention; Figure 4 This is a schematic diagram of the crushing box connection structure of the present invention [A113]; Figure 5 This is a schematic diagram of the internal structure of the crushing chamber of the present invention; Figure 6 This is a schematic diagram of the material guide tube connection structure of the present invention; Figure 7 Here are schematic diagrams of the internal structure of the heating box of the present invention [A114][A115]; Figure 8 This is a schematic diagram of the connection structure of the crushing box of the present invention.

[0021] The attached diagram lists the components represented by each number as follows: 1. Mounting base; 11. Support column; 12. Buffer support leg; 13. Top support column; 14. Heating box; 15. Mounting crossbeam; 16. Limiting rod one; 17. Hydraulic pump; 18. Limiting sleeve; 19. Fixing frame; 110. Controller; 111. Ventilation fan; 112. Ventilation opening; 113. Inner box; 114. Internal push plate; 115. Top mounting seat; 116. Inlet; 117. Mounting seat one; 118. Heating coil; 119. Heating section; 120. Bottom asphalt outlet; 121. Asphalt box; 2. Guide pipe 3. Crushing box; 4. Blowing fan; 41. Material blocking box; 42. Collection box; 5. Drive motor; 51. Transmission gear set one; 52. Meshing gear set one; 53. Bottom crushing roller; 54. Limiting rod two; 55. Bevel gear set one; 56. Mounting base two; 57. Bevel gear set two; 58. Rotating rod; 59. Transmission wheel set; 510. Mounting rod; 511. Transmission gear set two; 512. Drive rod; 513. Meshing gear set two; 514. Stirring rod; 515. Transmission box; 516. Bottom discharge box; 517. Meshing teeth.

[0022] Detailed Implementation [A116] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0023] The present invention provides the following preferred embodiments. like Figure 1-8 As shown, a [A117] highway reconstruction and expansion project solid waste recycling equipment includes a mounting base 1. Multiple support columns 11 are fixedly connected to one side of the top of the mounting base 1. Multiple [A118][A119] support columns 11 are fixedly connected to the top of each of the support columns 11. Each [A120] buffer support column 12 is fixedly connected to the top of the top of each [A121] top of the top support column 13. An [A122][A123] asphalt heating and filtering structure is provided at the top of the top of the top support column 13. A multi-stage crushing and regeneration structure is provided on the other side of the top of the mounting base 1.

[0024] The asphalt heating and filtering structure includes a heating box 14 fixed to the top of the top support column 13. A mounting beam 15 is fixedly connected to one side of the outer wall of the heating box 14. Two limiting sleeves [A125][A126] 18 are symmetrically fixedly connected to the top of the mounting beam 15. Limiting rods 16 are slidably connected to the inner walls of the two limiting sleeves 18. A hydraulic pump 17 [A127][A128] is fixedly connected to the center of the top of the mounting beam 15. The output end of the hydraulic pump 17 passes through one side of the outer wall of the heating box 14 through a fixing frame 19 [A129][A130]. ​​An internal pusher plate 114 is fixedly connected to the output end of the hydraulic pump 17.

[0025] Controllers 110 are fixedly connected to both sides of the outer wall of the heating box 14. At least one ventilation fan 111 is fixedly connected to one side of the outer wall of each controller 110 [A131][A132]. At least one ventilation fan 111 passes through the ventilation openings 112 to the other two sides of the outer wall of the heating box 14.

[0026] An inner box 113 is fixedly connected inside the heating box 14 [A135][A136]. Mounting bases 117 are fixedly connected to both sides of the inner box 113 [A137][A138], and the internal pusher plate 114 is located in the inner box [A139] 113. Multiple heating coils 118 penetrate through the outer walls of the two mounting bases 117 [A140]. Multiple heating sections 119 are installed at equal intervals on the outer walls of the multiple heating coils 118. One end of each heating section 119 [A141] is fixedly connected to the outer wall of the inner box 113.

[0027] The top of the inner box 113 is provided with a top mounting seat 115, and the top of the top mounting seat 115 is fixedly connected to the feed inlet 116 [A142][A143], and the bottom of the inner box 113 is fixedly installed with a bottom asphalt outlet 120 [A144][A145], and the bottom of the bottom asphalt outlet 120 is fixedly connected to an asphalt tank 121.

[0028] The mounting base 1 is a thickened steel plate base. Multiple sets of support columns 11 are vertically fixed on one side of the base. The top of the support column 11 is equipped with a buffer foot 12. The buffer foot 12 has a built-in shock-absorbing spring structure, which can absorb the vibration generated during material transmission, reduce equipment noise, and prevent structural loosening and cracking. The top support column 13 is equipped with an asphalt heating and filtration structure for heating and purifying waste asphalt mixture. On the other side of the mounting base 1, a multi-stage crushing and recycling structure is arranged to realize road solid waste crushing and screening. The left and right sections can operate separately without interference. The integrated structure greatly reduces the construction footprint. A crossbeam 15 is fixedly installed on the outside of the heating box 14. The top of the crossbeam is symmetrically arranged with a limiting sleeve 18. The limiting sleeve 18 has a sliding limit rod 16 inside to ensure the linear movement of the pusher plate and prevent deviation and jamming. A hydraulic pump 17 [A146] is fixed at the top of the crossbeam. The output end of the hydraulic pump 17 is inserted into the heating box 14 through a fixing frame 19. The end is fixed with an internal pusher plate 114. The hydraulic extension and retraction drive the internal pusher plate 114 to move and push the asphalt material, accelerating the melting and permeation filtration of asphalt. Controllers 110 are symmetrically fixed on both sides of the heating box 14 for manual adjustment of heating temperature and working time. Two ventilation fans 111 are mounted around each controller 110, and the four ventilation fans 111 are symmetrically arranged to form a convection ventilation duct. The ventilation fans 111 are aligned with the ventilation openings 112 on the side wall of the heating box 14, penetrating [A147] and connecting to the inside of the box. During operation, the circulation of hot air inside the box is accelerated, reducing the surface temperature of the box [A148][A149]. An inner box 113 is fixedly nested inside the heating box 14. The internal pusher plate 114 slides against the inner wall of the inner box 113, squeezing the waste asphalt mixture inside, and can also remove asphalt. The solid waste after melting is pushed to the subsequent process for crushing. Multiple sets of heating coils 118 are horizontally fixed through the mounting base 117. Heating sections 119 are arranged at equal intervals on the outer wall of the coils. The heating sections 119 fit against the outer wall of the inner box 113, providing circumferential heating without any dead corners, ensuring uniform heating of the material. The top mounting base 115 is fixed at the upper end of the inner box 113 for sealing the connection of the feed inlet 116 [A150][A151]. The bottom end of the inner box 113 has a bottom asphalt outlet 120, which automatically guides the melted and filtered liquid asphalt downwards. The lower end of the outlet is connected to the asphalt box 121, which is used to collect the liquid asphalt [A152].

[0029] The multi-stage crushing and recycling structure includes a guide pipe 2 fixed to one side of the outer wall of the heating box 14. [A153][A154] The other end of the guide pipe 2 away from the heating box 14 is fixedly connected to the crushing box 3. [A157][A158] One end of the guide pipe 2 passes through the heating box 14 and is connected to the inner box 113. At least one [A159][A160] blowing fan 4 is fixedly connected to one side of the outer wall of the crushing box 3. A blocking box 41 is fixedly connected to the other side of the outer wall of the crushing box 3. A collection box 42 is fixedly connected to the bottom end of the blocking box 41.

[0030] The top of the mounting base 1 is located on one side of the crushing box 3 and a drive motor 5 is installed. The output end of the drive motor 5 is equipped with a transmission gear set 51. The transmission gear set 51 is installed on one side of the outer wall of the crushing box 3 through a limiting rod 54. The output end of the drive motor 5 is located on one side of the transmission gear set 51 and a meshing gear set 52 is installed. The meshing gear set 52 is coaxially fixed [A161][A162] and has two bottom crushing rollers 53 that mesh with each other [A163][A164].

[0031] A bevel gear set 55 is connected to one side of the outer wall of the first transmission gear set 51. The outer wall of the first bevel gear set 55 is fixed to one side of the outer wall of the crushing box 3 [A165][A166] by the second mounting seat 56. The bottom end of the first bevel gear set 55 is meshed with the second bevel gear set 57. One side of the second bevel gear set 57 is connected to the transmission wheel set 59 by the rotating rod 58. One side of the transmission wheel set 59 is installed on the other side of the outer wall of the crushing box 3 [A167] by the mounting rod 510. The second transmission gear set 511 is connected to one side of the transmission wheel set 59.

[0032] One side of the outer wall of the second transmission gear set 511 is connected to the second meshing gear set 513 via the drive rod 512. The second meshing gear set 513 is coaxially fixed [A168] and has two agitator rods 514. The agitator rods 514 are located inside the crushing box 3 [A169][A170]. The second transmission gear set 511 and the second meshing gear set 513 are both located in the transmission box 515 on one side of the outer wall of the crushing box 3 [A171][A172].

[0033] The bottom end of the crushing box 3 is fixedly connected to the bottom discharge box 516. The bottom discharge box 516 has multiple meshing teeth 517 installed inside [A173][A174], and the multiple meshing teeth 517 correspond to the bottom crushing roller 53.

[0034] The heating box 14 is connected to the material guide pipe 2 on its side wall. The internal pusher plate 114 can push the hard waste residue after heating and separation into the crushing box 3 for continuous crushing of the waste residue. A blowing fan 4 is installed on one side of the crushing box 3, and a high-speed airflow blows away light impurities and dust. A blocking box 41 is installed on the other side to prevent large particles of aggregate from overflowing, thus achieving separation of light and heavy materials [A175]. The lower end of the blocking box 41 is connected to the collection box 42 to collect small-sized recycled aggregate. The upper end of the mounting base 1 is fixed with a drive motor 5. The output end of the motor is connected to the first transmission gear set 51 and is connected to the second limit rod 54 [A175]. [6] Installed on the outer wall of the crushing box 3 to prevent transmission deviation, the motor output end is synchronously equipped with meshing gear set 52, and the power is transmitted to the bottom crushing roller 53; the two bottom crushing rollers 53 mesh with each other and rotate in opposite directions to form a squeezing and shearing crushing zone, which strongly squeezes and crushes the waste material. The outer side of the transmission gear set 51 meshes with the transmission bevel gear set 55 to realize the reversal of horizontal power transmission to the vertical direction; the bevel gear set 55 is installed on the outer wall of the crushing box 3 [A178] through the mounting base 2 56 [A177], and the lower end of the bevel gear set 55 meshes with the bevel gear set 2 57, and the direction is reversed again. Transmission; the transmission wheel set 59 is driven to rotate by the rotating rod 58, and the transmission wheel set 59 is positioned and installed by the mounting rod 510; the end of the wheel set is connected to the transmission gear set 2 511 to complete the step-by-step transmission of power and provide power to the upper stirring mechanism. The outer side of the transmission gear set 2 511 is connected to the meshing gear set 2 513 through the drive rod 512. [A179] The gears are enclosed and stored inside the transmission box 515 to prevent dust and slag, and to prevent sand and gravel impurities from jamming the gears. Two stirring rods 514 are installed on the inner side of the meshing gear set 2 513, and the stirring rods 514 extend into the crushing box 3; the material is crushed through During the process, the stirring rod 514 continuously rotates to break up the lumpy material, scrape off the waste residue adhering to the inner wall of the box, improve the crushing uniformity, and reduce clogging. The bottom discharge box 516 is fixed at the bottom of the crushing box 3 as the aggregate discharge channel to centrally guide the crushed recycled sand and gravel [A180][A181]. The discharge box is densely packed with multiple sets of meshing teeth 517. The teeth are made of high-strength wear-resistant alloy material. The meshing teeth 517 correspond one-to-one with the position of the bottom crushing roller 53 above. After the material is squeezed by the roller, it falls between the meshing teeth and is meshed and ground again to reduce the particle size [A182].

[0035] The working principle of this invention is as follows: When this device is in use, the controller 110 is activated to adjust the heating power. The heating coil 118, together with the heating section 119, heats the inner box 113 from all directions, and the waste asphalt melts upon heating. At the same time, the hydraulic pump 17 is activated. Under the guidance of the limiting sleeve 18 and the limiting rod 16, the internal pusher plate 114 is pushed to move and squeeze the material, accelerating the permeation and filtration of liquid asphalt [A183]. The molten asphalt flows into the asphalt tank 121 for storage through the bottom asphalt outlet 120. The ventilation fan 111 runs through [A184] to connect the inside of the tank. During the operation, the circulation of hot air inside the tank is accelerated, reducing the surface temperature of the tank. After heating and separation, the hard waste residue is introduced into the crushing box 3 through the internal pusher plate 114 and the guide pipe 2. The drive motor 5 is started, and the power is transmitted to the bottom crushing roller 53 through the transmission gear set 51 and the meshing gear set 52. The two rollers rotate in opposite directions to squeeze and crush the waste residue. At the same time, the power is transmitted through the wheel set in stages to drive the stirring rod 514 to rotate at high speed [A185] to break up the agglomerated material. During the crushing process, the blowing fan 4 generates a directional airflow to blow light dust and fine impurities into the blocking box 41. The fine aggregate settles into the collection box 42, which makes the utilization of solid waste more complete.

[0036] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A solid waste recycling device for highway reconstruction and expansion projects, characterized in that, Includes a mounting base (1), on one side of the top of the mounting base (1) are fixedly connected multiple support columns (11), and the top of each of the multiple support columns (11) is fixedly connected to a buffer leg (12), and the top of each buffer leg (12) is fixedly connected to a top support column (13), and the top of the top support column (13) is provided with an asphalt heating and filtering structure [A2][A3] at the top [A1]. The mounting base (1) has a multi-stage crushing and regeneration structure on the other side of its top.

2. The solid waste recycling equipment for highway reconstruction and expansion projects according to claim 1, characterized in that, The asphalt heating and filtering structure includes a heating box (14) fixed to the top of the top support column (13). A mounting beam (15) is fixedly connected to one side of the outer wall of the heating box (14). Two limiting sleeves (18) (A5][A6] are symmetrically fixedly connected to the top of the mounting beam (15). The inner walls of the two limiting sleeves (18) are slidably connected to a limiting rod (16). A hydraulic pump (17) (A7][A8) is fixedly connected to the center of the top of the mounting beam (15). The output end of the hydraulic pump (17) passes through the outer wall of one side of the heating box (14) through a fixing frame (19) (A9][A10). An internal pusher plate (114) is fixedly connected to the output end of the hydraulic pump (17).

3. The solid waste recycling equipment for highway reconstruction and expansion projects according to claim 2, characterized in that, Both sides of the outer wall of the heating box (14) are fixedly connected to controllers (110), and at least one ventilation fan (111) is fixedly connected to one side of the outer wall of each controller (110) [A11][A12]. At least one ventilation fan (111) passes through the ventilation opening (112) on the other two sides of the outer wall of the heating box (14).

4. The solid waste recycling equipment for highway reconstruction and expansion projects according to claim 2, characterized in that, The heating box (14) has an inner box (113) fixedly connected inside [A15][A16]. The inner box (113) has mounting bases (117) fixedly connected on both sides [A17][A18]. The inner pusher plate (114) is located in the inner box [A19] (113). Multiple heating coils (118) are penetrated through the outer walls of the two mounting bases (117) [A20]. Multiple heating sections (119) are installed at equal intervals on the outer walls of the multiple heating coils (118). One end of the multiple heating sections (119) is fixedly connected to the outer wall of the inner box (113) [A21].

5. The solid waste recycling equipment for highway reconstruction and expansion projects according to claim 4, characterized in that, The top of the inner box (113) is provided with a top mounting seat (115), and the top of the top mounting seat (115) is fixedly connected to the feed inlet (116) [A22][A23]. The bottom of the inner box (113) is fixedly installed with a bottom asphalt outlet (120) [A24][A25], and the bottom of the bottom asphalt outlet (120) is fixedly connected to an asphalt tank (121) [A26][A27][A28].

6. The solid waste recycling equipment for highway reconstruction and expansion projects according to claim 1, characterized in that, The multi-stage crushing and regeneration structure includes a guide pipe (2) fixed to one side of the outer wall of the heating box (14). [A29][A30] The other end of the guide pipe (2) away from the heating box (14) is fixedly connected to the crushing box (3). [A31][A32] One end of the guide pipe (2) passes through the heating box (14) and is connected to the inner box (113). At least one [A35][A36] blowing fan (4) is fixedly connected to one side of the outer wall of the crushing box (3). A blocking box (41) is fixedly connected to the other side of the outer wall of the crushing box (3). A collection box (42) is fixedly connected to the bottom end of the blocking box (41).

7. The solid waste recycling equipment for highway reconstruction and expansion projects according to claim 1, characterized in that, The top of the mounting base (1) is located on one side of the crushing box (3) and a drive motor (5) is installed. The output end of the drive motor (5) is equipped with a transmission gear set (51). The transmission gear set (51) is installed on one side of the outer wall of the crushing box (3) through a limiting rod (54). The output end of the drive motor (5) is located on one side of the transmission gear set (51) and a meshing gear set (52) is installed. The meshing gear set (52) is coaxially fixed [A37][A38] with two bottom crushing rollers (53) that mesh with each other [A39][A40].

8. The solid waste recycling equipment for highway reconstruction and expansion projects according to claim 7, characterized in that, One side of the outer wall of the first transmission gear set (51) is connected to the first bevel gear set (55). The outer wall of the first bevel gear set (55) is fixed to one side of the outer wall of the crushing box (3) [A41][A42] by the second mounting seat (56). The bottom end of the first bevel gear set (55) is meshed with the second bevel gear set (57). One side of the second bevel gear set (57) is connected to the transmission wheel set (59) by the rotating rod (58). One side of the transmission wheel set (59) is installed on the other side of the outer wall of the crushing box (3) [A43] by the mounting rod (510). One side of the transmission wheel set (59) is connected to the second transmission gear set (511).

9. A solid waste recycling equipment for highway reconstruction and expansion projects according to claim 8, characterized in that, The outer wall of the second transmission gear set (511) is connected to the second meshing gear set (513) via a drive rod (512). The second meshing gear set (513) is coaxially fixed with two stirring rods (514). The stirring rods (514) are located inside the crushing box (3). The second transmission gear set (511) and the second meshing gear set (513) are both located in the transmission box (515) on the outer wall of the crushing box (3).

10. A solid waste recycling equipment for highway reconstruction and expansion projects according to claim 6, characterized in that, The bottom end of the crushing box (3) is fixedly connected to a bottom discharge box (516). The bottom discharge box (516) has multiple meshing teeth (517) installed inside [A49][A50], and the multiple meshing teeth (517) correspond to the bottom crushing roller (53).

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