Building solid waste recycled aggregate preparation system and operation method

Abstract

The invention provides a building solid waste recycled aggregate preparation system and an operation method. Materials are fed into the intelligent jaw crusher through the feeding equipment to be preliminarily crushed, meanwhile, dust emission is reduced through the dust suction machine, and when the metal detector detects metal foreign matter, the hydraulic system controls the movable jaw to retreat to release the foreign matter. And crushed materials are conveyed into a magnetic separator through a conveying belt, and metal impurities are removed by utilizing a magnetic principle. And then the materials are fed into the intelligent cone crusher through the intelligent elevator for secondary crushing, and the metal detector detects again and removes metal foreign matters. After secondary iron removal, the materials are fed into the winnowing machine through the conveying belt and the intelligent elevator, and light substances are separated through wind power. And the winnowed materials are conveyed into the intelligent screening machine through the conveying belt and the intelligent elevator, and the materials with the required granularity are accurately screened. The production efficiency of the building solid waste recycled aggregate is improved, efficient, safe and environment-friendly building waste treatment and resource recovery are achieved, and remarkable social and economic benefits are achieved.

Description

Technical Field

[0001] The invention relates to the field of prefabricated concrete component construction, and in particular to a construction solid waste recycled aggregate preparation system and an operation method. Background Art

[0002] With the acceleration of urbanization, the construction industry has developed rapidly, and a large amount of construction solid waste has been generated. If these wastes are not handled properly, they will not only occupy land resources, but also cause serious pollution to the environment. Therefore, converting construction solid waste into reusable recycled aggregates is of great significance for resource recycling and environmental protection. The construction waste recycled aggregate pretreatment system is a technical system specially used to treat construction waste and convert it into reusable resources. Through a series of process flows, the system converts construction waste into recycled aggregates, which can be used to produce concrete, mortar or prepare building materials such as blocks, wall panels, and floor tiles.

[0003] At present, a certain amount of fine powder will be generated during the process of crushing, screening, strengthening and shaping. Excessive fine powder content will affect the strength and durability of recycled concrete. Wet sand washing machines are commonly used in China to remove fine powder, but there are problems such as high investment, large land occupation, high processing cost, and secondary pollution. In addition, during the operation of the jaw crusher, the material is in direct contact with the jaw plate, and the jaw plate is subjected to huge crushing pressure, especially for some materials with higher hardness. The strong force will cause the mounting bolts of the jaw plate to loosen due to vibration, thereby aggravating the wear of the jaw plate, and even falling off or breaking.

[0004] Therefore, how to propose an intelligent and digital construction solid waste recycled aggregate preparation system and operation method that can extend the service life of the jaw plate, reduce the generation of micropowder, more effectively separate light materials and metal impurities, and improve the production efficiency and economic benefits of construction solid waste recycled aggregate is a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] The object of the present invention is to provide a system and an operating method for preparing recycled aggregate from construction solid waste that solve the above-mentioned technical problems.

[0006] In order to solve the above technical problems, the present invention provides an operation method of a construction solid waste recycled aggregate preparation system, comprising the following steps:

[0007] Step 1: Feed the material into the jaw crusher through the feeding equipment for crushing. During crushing, the movable jaw plate moves left and right towards the fixed jaw plate and squeezes it to crush the stone sandwiched between them. If the metal detector detects metal, it will activate the hydraulic system to control the movable jaw plate to retreat and release the sandwiched foreign matter; the vacuum cleaner at the lower front wall of the frame sucks out the dust generated during crushing;

[0008] Step 2: The crushed materials are sent to the magnetic separator through the conveyor belt to remove metal impurities, and then sent to the cone crusher through the intelligent elevator. The eccentric sleeve is driven to rotate by the large and small gears. The cone shaft of the crusher generates eccentricity and performs a pendulum motion under the action of the eccentric sleeve, so that the surface of the moving cone lining is sometimes close to the surface of the fixed cone lining, and sometimes away from the surface of the fixed cone lining, so that the stone is continuously crushed in the crushing chamber. The crushed materials are discharged from the discharge port at the bottom of the cone crusher. When the metal detector on the feed hopper detects metal in the crushing place, it will activate the protection device, move the main shaft downward, and remove the metal;

[0009] Step 3: The crushed material is sent to the magnetic separator through a conveyor belt for secondary iron removal. After iron removal, the material is tested for iron content. If iron is still detected, the material will be sent back to the cone crusher for crushing again until it reaches the iron-free standard.

[0010] Step 4: The materials are sent into the winnowing machine through the conveyor belt and the intelligent elevator. The internal steel plate of the winnowing machine slows down the material descent speed and disperses the materials, separating the light materials from the materials. After separation, the materials flow out from the bottom of the separator, and the light materials are transported to the collector through the separator pipeline;

[0011] Step 5: The materials after winnowing are sent to the intelligent screening machine through the conveyor belt and the intelligent elevator. The materials are subjected to the vibration force on the screen surface. Smaller particles fall through the screen holes, while larger particles remain on the screen surface and are discharged from the discharge port. The impeller inside the discharge port rotates to speed up the discharge of materials.

[0012] Step 6: In the whole process, the circuit system is responsible for controlling the operation of each device, and the dust collection system is responsible for collecting and processing the dust generated during the crushing process.

[0013] The beneficial effects of the present invention are:

[0014] 1) Intelligent jaw crusher reduces dust emission through vacuum cleaner to protect the environment; metal detector improves safety and prevents metal foreign objects from damaging the equipment; hydraulic system controls the movable jaw to retreat to release foreign objects and reduce equipment damage. As a primary crushing equipment, it effectively reduces the particle size of materials, lays the foundation for subsequent processing, and protects the environment and equipment at the same time. By adding a protective plate, the service life of the jaw plate is extended, the maintenance cost is reduced, and the economic benefits are improved.

[0015] 2) The gravity sensing device of the intelligent elevator automatically controls the lifting and lowering, improves the material transportation efficiency, and reduces manual operation. As an automated link in material transportation, it improves the automation level and efficiency of the entire system.

[0016] 3) The new cone crusher effectively reduces dust generation and increases the service life of the cone.

[0017] 4) The intelligent air separator effectively separates light materials such as plastics and wood chips, improving the purity of aggregates; the intelligent switch controls the material flow rate and optimizes the separation effect. The safety of the motor is protected by adding a filter.

[0018] 5) The intelligent screening machine uses vibration force and screen hole design to accurately screen materials of the required particle size; the intelligent switch and impeller design prevents blockage and improves discharge efficiency. It ensures the consistency and quality of the final product particle size and improves the output efficiency of the entire system.

[0019] 6) The whole system improves the production efficiency of recycled aggregates from construction solid waste through intelligent control and automated operation. The dust emission is reduced through the vacuum cleaner and dust collection system, which meets environmental protection requirements. The use of metal detectors and protective devices reduces the damage caused by metal foreign matter to the equipment and improves the safety of operation. It achieves efficient, safe and environmentally friendly construction waste treatment and resource recycling, with significant social and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of the intelligent jaw crusher of the present invention;

[0021] Figure 2 This is a structural diagram of the intelligent elevator of the present invention;

[0022] Figure 3 The present invention is a cone crusher structure diagram;

[0023] Figure 4 It is the structural diagram of the air separator of the present invention;

[0024] Figure 5 This is a structural diagram of the intelligent screening machine of the present invention;

[0025] Figure 6 This is a structural diagram of the cinch ring connector of the present invention;

[0026] Figure 7 It is a top view of the screen and the arc-shaped funnel of the present invention;

[0027] Figure 8 It is a flow chart of the present invention.

[0028] Among them: 1. Intelligent jaw crusher; 2. Magnetic separator; 3. Intelligent elevator; 4. Intelligent cone crusher; 5. Lifting belt; 6. Air separator; 7. Intelligent screening machine; 8. Feeding equipment; 9. Eccentric shaft; 10. Working mechanism; 11. First flywheel; 12. Frame; 13. Toggle plate; 14. Hydraulic system; 15. Spring; 16. Movable jaw plate; 17. Upper guard plate; 18. Protective plate; 19. Groove; 20. Movable jaw guard plate; 21. Fixed jaw plate; 22. Longitudinal plate; 23. Vacuum cleaner; 24. Bolt; 25. Outer rib plate; 26. Horizontal plate; 27. Gasket; 28. Conveyor belt; 29. ​​Crawler track; 30. Crawler wheel; 31. Dust cover; 32. Lifting platform; 33. Gravity sensing device; 34. Spray ; 35. Pressure cap; 36. Support sleeve; 37. Adjustment sleeve; 38. Energy accumulator; 39. Main shaft; 40. Gear; 41. Transmission shaft; 42. Second flywheel; 43. Eccentric sleeve; 44. Main shaft bushing; 45. Moving cone; 46. Moving cone lining; 47. Fixed cone lining; 48. Metal detector; 49. Feed hopper; 50. Hydraulic adjustment motor; 51. Tooth shape; 52. Adjustment cap; 53. Sawtooth thread; 54. Metal detector; 55. Fan; 56. Suspension chain; 57. Fan blade; 58. Casing; 59. Impeller; 60. Exhaust pipe; 61. Separator; 62. Superstructure; 63. First round steel pipe; 64. Conical steel pipe; 65. Second round steel pipe; 66. First intelligent switch; 67 .round steel ring; 68. support frame; 69. round steel column; 70. collector; 71. pipeline; 72. filter; 73. steel pipe; 74. funnel-shaped steel pipe; 75. motor; 76. steel plate; 77. feed port; 78. funnel; 79. round funnel; 80. second intelligent switch; 81. dust cover; 82. filter; 83. fixing; 84. clamping ring connector; 85. new clamping ring; 86. frame; 87. intelligent robot arm; 88. sensor; 89. discharge port; 90. small impeller; 91. screen; 92.; 93. arc; 94. shock-absorbing spring; 95. upper weight; 96. vibration motor; 97. lower weight; 98. machine base; 99.; 100. fan-shaped funnel; 101. polygon ; 102. Pull rod; 103. Take-up device; 104. Drive sleeve; 105. Small motor; 106. Front wall of the frame; 107. Rear wall of the frame; 108. Lower guard plate; 109. Side wall of the frame; 110. Tooth profile; 111. Slot; 112. Frame; 113. Fixed cone; 114. Crushing chamber; 115. Protective plate; 116. Protective plate; 117. Shaft; 118. Movable part; 119. Fixed part; 120. Rod; 121. Hole; 122. Bolt; 123. First steel plate; 124. Protrusion; 125. Second steel plate; 126. Groove; 127. Scalloped edge; 128. Rounded rectangle; 129. Hole; 130. Rod; 131. Sensor; 131. Sensor 2. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0030] Those skilled in the art should understand that, in the disclosure of the present invention, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0031] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0032] like Figure 1-Figure 8 The present invention provides an operation method of a construction solid waste recycled aggregate preparation system, comprising the following steps:

[0033] Step 1: The material is evenly fed into the jaw crusher 1 for crushing through the feeding device 8. During crushing, the movable jaw plate 16 moves left and right toward the fixed jaw plate 21 and squeezes to form pressure to crush the stone sandwiched therebetween. If the metal detector 54 detects metal, the hydraulic system 14 will be activated to control the movable jaw 16 to retreat and release the clamped foreign matter. The vacuum cleaner 23 at the lower part of the front wall 106 of the frame will suck out the dust generated during crushing.

[0034] Step 2: The crushed material is sent to the magnetic separator 2 through the conveyor belt 28, and the metal impurities therein are removed by the magnetic principle. Then, the material is evenly sent to the cone crusher 4 through the intelligent elevator 3, and the eccentric sleeve 43 is driven to rotate by the large and small gears 40. The crusher cone shaft 39 generates an eccentric distance and performs a swinging motion under the action of the eccentric sleeve 43, so that the surface of the movable cone lining 46 is sometimes close to the surface of the fixed cone lining 47, and sometimes away from the surface of the fixed cone lining 47, so that the stone is continuously squeezed, broken and impacted in the crushing chamber 114 and crushed. The crushed material is discharged from the discharge port at the bottom of the crusher under the action of its own weight. When the metal detector 48 on the feed hopper 49 detects metal at the crushing site, it will activate the protection device to move the main shaft 39 downward to remove the metal.

[0035] Among them, the main shaft 39, large and small gears 40 and the like are synchronously arranged at the hydraulic lifting device, and the main shaft 39, large and small gears 40 and the like are controlled by the hydraulic lifting device to synchronously lift and lower the structures to ensure the discharge of the metal.

[0036] Step 3: The crushed material is sent to the magnetic separator 2 through the conveyor belt 28 for secondary iron removal. After the iron removal, the material is tested for iron content. If iron is still detected, the material will be sent back to the cone crusher 4 for crushing again until it reaches the iron-free standard.

[0037] Step 4: The material is then sent into the air separator 6 through the conveyor belt 28 and the intelligent elevator 3. The first intelligent switch 66 at the entrance of the air separator 6 will control the material flow rate. The internal steel plate 76 slows down the material descent speed and disperses the material, and effectively uses wind power to separate light materials such as plastics and wood chips from the material. After separation, the material flows out from the lower part of the separator 61, and the light material is transported to the collector 70 through the pipeline on the right side of the separator 61. This step helps to improve the purity of the aggregate.

[0038] The first intelligent switch 66 is connected to the fan blade 57 to control the rotation speed of the fan blade 57, thereby controlling the material flow rate through the wind speed.

[0039] Step 5: The air-selected material is evenly fed into the intelligent screening machine 7 through the conveyor belt 28 and the intelligent elevator 3. The speed at which the material enters the interior is controlled by the second intelligent switch 80 of the feed port 77 to prevent blockage. The material is subjected to the vibration force on the screen surface 91. Smaller particles fall through the screen holes 101, while larger particles remain on the screen surface and are discharged from the discharge port 89. The impeller 90 inside the discharge port 89 rotates to speed up the discharge of the material and prevent the material from being blocked at the discharge port 89.

[0040] A gate is movably arranged at the feed port 77, and a second intelligent switch 80 is connected to the gate to control the opening and closing size of the gate, thereby controlling the speed at which the material enters the interior.

[0041] Step 6: In the whole process, the circuit system is responsible for controlling the operation of each device to ensure the automation and efficiency of the process. The dust collection system is responsible for collecting and processing the dust generated during the crushing process to protect the environment and meet environmental protection requirements.

[0042] The present invention also discloses a system for preparing recycled aggregate from construction solid waste, such as Figure 1As shown, the intelligent jaw crusher 1 includes a frame 12, a working mechanism 10, a first flywheel 11, an adjustment device 14, and a tensioning device 103. The frame 12 is composed of a frame front wall 106, a frame side wall 109, and a frame rear wall 107; the frame front wall 106 is composed of a longitudinal plate 22 and an outer rib plate 25, a dust collector 23 is installed at the lower part of the frame front wall 106, the frame side wall 109 is composed of an upper side guard plate 17 and a lower side guard plate 108, and a sensor 131 is installed inside the frame side wall 109. When the intelligent sensor 131 monitors that the dust concentration exceeds the standard, the dust collector 23 will be automatically started;

[0043] The working mechanism 10 includes a fixed jaw plate 21 and a movable jaw plate 16, the surface of the jaw plate is toothed 110, and the fixed jaw plate 21 is fixed on the front wall 106 of the frame. The movable jaw plate 16 is installed on the movable jaw body, which is suspended on the frame 12 by means of the eccentric shaft 9 and the bearing, and the lower part is supported on the toggle plate 13 and is hinged with the toggle plate 13. Both sides of the fixed jaw plate 21 and the movable jaw plate 16 have a slot 111, and the protection plate 18 is installed on the fixed jaw plate 21 and the movable jaw plate 16 through the slot 111. The upper part of the movable jaw body is connected to a wedge block, and the upper part of the wedge block is connected to the movable jaw guard plate 20. A metal detector 54 is installed above the crushing chamber of the movable jaw body. When the metal detector 54 detects an unbreakable object, the movable jaw plate 16 will automatically retreat.

[0044] The tensioning device 103 comprises a pull rod 102, a spring 15 and an adjusting nut. One end of the pull rod 102 is hinged to the earring at the bottom of the movable jaw body, and the other end passes through the lug of the rear wall 107 of the frame and is tensioned by the spring 15 and the nut.

[0045] like Figure 2 , Figure 3 As shown, an intelligent cone crusher is used for secondary crushing; the intelligent elevator includes a lifting belt 5, a lifting platform 32, and a gravity sensing device 33 behind the lifting belt 5. When the gravity sensing device 33 detects that the lifting platform 32 reaches a specified weight, it will automatically rise.

[0046] The intelligent cone crusher 4 includes a frame 112, a moving cone 45, a fixed cone 113, an eccentric shaft sleeve 43, and a hydraulic system 38; the intelligent cone crusher guides the material into the crushing chamber 114 through a feed hopper 49, a metal detector 48 is installed inside the feed hopper 49, when the metal detector 48 detects metal, the main shaft 39 will be automatically moved down, a sprayer 34 is installed on the upper part of the feed hopper 49, when the sensor 132 monitors that the dust concentration exceeds the standard, the sprayer 34 will be automatically started. The fixed cone liner 47 is connected to the adjustment sleeve 37, and the adjustment sleeve 37 and the support sleeve 36 are connected through a sawtooth thread 53.

[0047] The movable cone 45 is connected to the eccentric sleeve 43 through the main shaft 39, and a crushing chamber 114 is formed between the movable cone 45 and the fixed cone liner 47 fixed on the frame. The surface of the fixed cone liner 47 presents a tooth shape 51, and a protective plate 116 is installed on the surface, and epoxy resin is applied between the fixed cone liner 47 and the protective plate 116. The pressure cap 35 is connected to the movable cone liner 46 through bolts, and the protective plate 115 is installed on the surface of the movable cone liner 46. Epoxy resin is applied between the movable cone liner 46 and the protective plate 115. The lower part of the eccentric sleeve 43 is installed with large and small gears 40 through bolts and is connected to the main shaft 39. The large and small gears 40 are connected to the transmission shaft 41 through the transmission sleeve 104, and the other end of the transmission shaft 41 is connected to the second flywheel 42.

[0048] The fixed cone 113 is connected to the feed hopper 49 by bolts, and the fixed cone 113 is connected to the fixed cone liner 47 by wedges and backing glue. The surface of the fixed cone liner 47 is toothed, and a crushing chamber 114 is formed with the moving cone 45.

[0049] like Figure 2 , Figure 4 As shown, the air separator includes a fan 55, an exhaust pipe 60, a support frame 68, a separator 61, and a waste collector 70. The fan 55 is connected to the separator 61 through the exhaust pipe 60, a filter screen 82 is installed in the exhaust pipe 60, the separator 61 is connected to the collector 70 through a pipeline, the upper part of the collector 70 is connected to the fan 55 through the pipeline 71, and a filter screen 72 is arranged inside the collector 70. The fan 55 includes a housing 58, a motor 75, an impeller 59 and a suspension chain 56. The housing 58 is connected to the motor 75 through the suspension chain 56, and the motor 75 is connected to the impeller 59 through the shaft 117. The support frame 68 includes a circular steel ring 67 and a circular steel column 69. The circular steel ring 67 and the circular steel column 69 are connected by welding, and a base plate is welded to the bottom of the circular steel column 69.

[0050] The separator 61 includes an upper structure 62 and a second circular steel pipe 65. The upper structure 62 is composed of a first circular steel pipe 63 and a conical steel pipe 64. Steel plates 76 are distributed in a height direction in the second circular steel pipe 65. A first intelligent switch 66 is provided at the connection between the upper structure 62 and the second circular steel pipe 65.

[0051] The waste collector 70 includes an upper structure and a lower structure. The upper structure adopts a circular steel pipe 73 , and the lower structure adopts a funnel-shaped steel pipe 74 . The connection between the upper structure and the lower structure is welded, and a filter screen 72 is arranged inside the circular steel pipe 73 .

[0052] like Figure 2 , Figure 5As shown, the intelligent screening machine 7 includes a feed port 77, a frame 86, a vibration motor 96, a new type of clamping ring 85, a shock-absorbing spring 94 and a screen 91. The lower part of the feed port 77 is connected to the dust cover 81, and the dust cover 81 is connected to the frame 86 through the new type of clamping ring 85; a sensor 88 and an intelligent robotic arm 87 are installed in the frame 86. When the sensor 88 detects that the hole 129 is blocked, the intelligent robotic arm 87 will extend and push the material on the upper side of the hole 129 to automatically clear the hole. The vibration motor 96 is located at the bottom of the intelligent screening machine 7, and the upper and lower parts of the vibration motor 96 are respectively connected to the upper weight 95 and the lower weight 97; the spring 94 is connected to the base 98 through a fixing bolt; the holes of the screen 91 are arranged to be a polygon 101. The corner of the discharge port 89 of the intelligent screening machine 7 is set to be an arc 93, holes 129 are reserved on both sides of the discharge port 89, a small impeller 90 is installed inside through a rod 130, and a small motor 105 is placed above the discharge port 89 and connected to the rod 130.

[0053] The clamping ring 85 includes a fixing part 119 and a movable part 118, and the fixing part 119 and the movable part 118 are connected through a rod 120 of the movable part 118. A hole 121 is left at one end of the rod 120, and a bolt 122 fixes the rod 120 between two first steel plates 123 through the hole 121. The other end of the rod 120 has a protrusion 124. The fixing part 119 is composed of two second steel plates 125, and the second steel plate 125 has two grooves 126. The entrance of the groove 126 is two fan-shaped edges 127, and the interior is a rounded rectangle 128; the two second steel plates 125 are respectively connected to the dust cover 81 and the frame 86, and the dust cover 81 and the frame 86 are connected by the protrusions 124 of the rod 120 that are respectively snapped into the grooves 126 of the two second steel plates 125.

[0054] Preferably, the protection plate is made of steel with excellent energy-absorbing properties, including but not limited to Q355 steel, Q345 steel, Q235 steel and Q390 steel.

[0055] Preferably, the protection plate and the jaw plate are bonded by epoxy resin so that the protection plate and the jaw plate are tightly attached to each other without any gap. The slots on both sides of the jaw plate are rectangular in shape, and 2 cm is left at the bottom to hold the protection plate.

[0056] Preferably, the outer side plate is L-shaped, formed by welding a horizontal plate and a vertical plate, and connected to the longitudinal plate by bolts and welding.

[0057] Preferably, the gravity sensing device is installed at the lowest level of the elevator. The lifting platform will automatically stop every time it rises 10 nm, and will automatically rise when the gravity sensing device detects that the gravity reaches 50 kg.

[0058] As a preferred embodiment, the moving cone liner is bonded to the moving cone by epoxy resin to ensure a close connection between the crushing wall and the moving cone and prevent materials from entering the gap between the crushing wall and the moving cone.

[0059] As a preferred option: the feed inlet and outlet corners of the smart screening machine are set to be arc-shaped, two rod holes are reserved on both sides of the discharge port, three small impellers are installed inside through the rods, and a small motor is placed above the discharge port to control the rotation of the impeller, speed up the discharge speed, and prevent the discharge port from being blocked.

[0060] Preferably, the holes of the screen are arranged in a hexagonal shape, which helps the material to pass through and prevents the material from getting stuck in the holes.

[0061] As a preference: a hole is reserved in the steel plate of the collar connector, the steel plate and the collar are connected by welding, the middle of the bolt should be smooth, the rod is round, and steel with excellent energy dissipation characteristics is used, including but not limited to Q355 steel, Q345 steel, Q235 steel and Q390 steel. The protruding part of the rod is cylindrical, the steel plate of the fixing is connected to the other end of the collar by welding, and the steel plate has two grooves, the entrance of the groove is two fan-shaped edges, and the inside is a rounded rectangle.

[0062] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. The operating method of the construction solid waste recycled aggregate preparation system is characterized by: The following steps are involved: Step 1: The material is fed into the jaw crusher (1) through the feeding device (8) for crushing. During crushing, the movable jaw plate (16) moves left and right towards the fixed jaw plate (21) and squeezes the stone material sandwiched therebetween. If the metal detector (54) detects metal, the hydraulic system (14) is activated to control the movable jaw plate (16) to retreat and release the sandwiched foreign matter. The dust collector (23) at the lower part of the front wall (106) of the frame sucks out the dust generated during crushing. Step 2: The crushed material is sent to the magnetic separator (2) through the conveyor belt (28) to remove metal impurities, and then sent to the cone crusher (4) through the intelligent elevator (3). The eccentric sleeve (43) is driven to rotate by the large and small gears (40). Under the action of the eccentric sleeve (43), the crusher cone shaft (39) generates an eccentricity and performs a swinging motion, so that the surface of the movable cone lining (46) is sometimes close to the surface of the fixed cone lining (47) and sometimes away from the surface of the fixed cone lining (47), so that the stone is continuously crushed in the crushing chamber (114). The crushed material is discharged from the discharge port at the bottom of the cone crusher (4). When the metal detector (48) on the feed hopper (49) detects metal at the crushing place, the protection device will be activated to move the main shaft (39) downward to remove the metal; Step 3: The crushed material is sent to the magnetic separator (2) through a conveyor belt (28) for secondary iron removal. After the iron removal, the material is tested for iron content. If iron is still detected, the material will be sent back to the cone crusher (4) for re-crushing until it reaches the iron-free standard. Step 4: The material is sent into the air separator (6) through the conveyor belt (28) and the intelligent elevator (3). The internal steel plate (76) of the air separator (6) slows down the material descent speed and disperses the material, separating the light material from the material. After separation, the material flows out from the lower part of the separator (61), and the light material is transported to the collector (70) through the pipeline of the separator (61); Step 5: The selected materials are sent to the intelligent screening machine (7) through the conveyor belt (28) and the intelligent elevator (3). The materials are subjected to the vibration force on the screen surface (91). Smaller particles fall through the screen holes (101), while larger particles remain on the screen surface and are discharged from the discharge port (89). The impeller (90) inside the discharge port (89) rotates to accelerate the discharge of the materials. Step 6: In the whole process, the circuit system is responsible for controlling the operation of each device, and the dust collection system is responsible for collecting and processing the dust generated during the crushing process.

2. The operating method of the construction solid waste recycled aggregate preparation system according to claim 1, characterized in that: The intelligent jaw crusher (1) comprises a frame (12), a working mechanism (10), a first flywheel (11), an adjustment device (14), and a tensioning device (103); the frame (12) comprises a frame front wall (106), a frame side wall (109), and a frame rear wall (107); the frame front wall (106) comprises a longitudinal plate (22) and an outer rib plate (25); a dust collector (23) is installed at the lower part of the frame front wall (106); the frame side wall (109) comprises an upper side guard plate (17) and a lower side guard plate (108); a sensor (131) is installed inside the frame side wall (109); when the dust concentration monitored by the intelligent sensor (131) exceeds a standard, the dust collector (23) is started.

3. The operating method of the construction solid waste recycled aggregate preparation system according to claim 2, characterized in that: The working mechanism (10) comprises a fixed jaw plate (21) and a movable jaw plate (16), the surface of the jaw plate is in a tooth shape (110), the fixed jaw plate (21) is fixed on the front wall (106) of the frame; the movable jaw plate (16) is mounted on the movable jaw body, the movable jaw body is suspended on the frame (12) by means of an eccentric shaft (9) and a bearing, the lower part of the movable jaw body is supported on the toggle plate (13) and is hinged to the toggle plate (13), both sides of the fixed jaw plate (21) and the movable jaw plate (16) are provided with a slot (111), and the protective plate (18) is mounted on the fixed jaw plate through the slot (111). The movable jaw plate (21) and the movable jaw plate (16) are connected to the upper part of the movable jaw body; the upper part of the wedge block is connected to the movable jaw guard plate (20); a metal detector (54) is installed above the crushing chamber of the movable jaw body; when the metal detector (54) detects an unbreakable object, the movable jaw plate (16) is retracted; the tensioning device (103) includes a pull rod (102), a spring (15) and an adjusting nut; one end of the pull rod (102) is hinged to the earring at the bottom of the movable jaw body, and the other end passes through the lug of the rear wall (107) of the frame and is tensioned by the spring (15) and the nut.

4. The operating method of the construction solid waste recycled aggregate preparation system according to claim 1, characterized in that: The intelligent elevator comprises an elevator belt (5), an elevator platform (32), and a gravity sensing device (33) behind the elevator belt (5). When the gravity sensing device (33) detects that the lifting platform (32) reaches a specified weight, the elevator belt (32) rises. The intelligent cone crusher (4) comprises a frame (112), a moving cone (45), a fixed cone (113), an eccentric shaft sleeve (43), and a hydraulic system (38). The intelligent cone crusher guides materials into a crushing chamber (114) through a feeding hopper (49). A metal detector (48) is installed inside the feeding hopper (49). When the metal detector (48) detects metal, the main shaft (39) is moved downward. A sprayer (34) is installed on the upper part of the feeding hopper (49). When the dust concentration monitored by the sensor (132) exceeds the standard, the sprayer (34) is started. The fixed cone liner (47) is connected to the adjustment sleeve (37), and the adjustment sleeve (37) and the support sleeve (36) are connected through a sawtooth thread (53).

5. The operating method of the construction solid waste recycled aggregate preparation system according to claim 4, characterized in that: The movable cone (45) is connected to the eccentric sleeve (43) through the main shaft (39), and a crushing chamber (114) is formed between the movable cone (45) and a fixed cone liner (47) fixed on the frame; the surface of the fixed cone liner (47) presents a tooth shape (51), and a protective plate (116) is installed on the surface of the fixed cone liner (47), and epoxy resin is applied between the fixed cone liner (47) and the protective plate (116). The pressure cap (35) is connected to the movable cone liner (46) through bolts, and the protective plate (116) is installed on the surface of the movable cone liner (46). 15), epoxy resin is applied between the moving cone liner (46) and the protection plate (115), and the lower part of the eccentric sleeve (43) is equipped with large and small gears (40) by bolts and connected to the main shaft (39); the large and small gears (40) are connected to the transmission shaft (41) through the transmission sleeve (104), and the other end of the transmission shaft (41) is connected to the second flywheel (42); the fixed cone (113) and the feeding hopper (49) are connected to each other, and the fixed cone (113) and the fixed cone liner (47) are connected by a wedge block and a backing glue.

6. The operating method of the construction solid waste recycled aggregate preparation system according to claim 1, characterized in that: The air separator comprises a fan (55), an exhaust pipe (60), a support frame (68), a separator (61), and a waste collector (70). The fan (55) is connected to the separator (61) via the exhaust pipe (60). A filter screen (82) is installed in the exhaust pipe (60). The separator (61) is connected to the waste collector (70) via a pipeline. The upper part of the waste collector (70) is connected to the fan (55) via the pipeline (71). A filter screen is installed inside the waste collector (70). (72); the fan (55) includes a housing (58), a motor (75), an impeller (59) and a suspension chain (56); the housing (58) and the motor (75) are connected via the suspension chain (56); the motor (75) and the impeller (59) are connected via a shaft (117); the support frame (68) includes a circular steel ring (67) and a circular steel column (69); the circular steel ring (67) and the circular steel column (69) are connected; the bottom of the circular steel column (69) is connected to a base plate.

7. The operating method of the construction solid waste recycled aggregate preparation system according to claim 6, characterized in that: The separator (61) comprises an upper structure (62) and a second circular steel pipe (65), wherein the upper structure (62) comprises a first circular steel pipe (63) and a conical steel pipe (64), and a steel plate (76) is distributed obliquely in the height direction in the second circular steel pipe (65); the waste collector (70) comprises an upper structure and a lower structure, wherein the upper structure adopts a circular steel pipe (73), and the lower structure adopts a funnel-shaped steel pipe (74), and a filter screen (72) is arranged inside the circular steel pipe (73).

8. The operating method of the construction solid waste recycled aggregate preparation system according to claim 1, characterized in that: The intelligent screening machine (7) comprises a feed port (77), a frame (86), a vibration motor (96), a new type of collar (85), a shock absorbing spring (94) and a screen (91). The lower part of the feed port (77) is connected to a dust cover (81), and the dust cover (81) is connected to the frame (86) through the collar (85). A sensor (88) and an intelligent mechanical arm (87) are installed in the frame (86). When the sensor (88) detects that the hole (129) is blocked, the intelligent mechanical arm (87) will extend and push the material on the upper side of the hole (129) to automatically clear the hole, and the vibration will cause the hole (129) to be blocked. The motor (96) is located at the bottom of the intelligent screening machine (7), and the upper and lower parts of the vibration motor (96) are respectively connected to the upper weight (95) and the lower weight (97); the spring (94) is connected to the machine base (98); the holes of the screen (91) are arranged to be polygonal (101); the corner of the discharge port (89) of the intelligent screening machine (7) is arranged to be arc-shaped (93), holes (129) are reserved on both sides of the discharge port (89), a small impeller (90) is installed inside through a rod (130), and a small motor (105) is placed above the discharge port (89) and connected to the rod (130).

9. The operating method of the construction solid waste recycled aggregate preparation system according to claim 8, characterized in that: The clamping ring (85) includes a fixed part (119) and a movable part (118). The fixed part (119) and the movable part (118) are connected via a rod (120) of the movable part (118). A hole (121) is left at one end of the rod (120). A bolt (122) passes through the hole (121) to fix the rod (120) between two first steel plates (123). The other end of the rod (120) has a protrusion (124). The fixed part (119) includes two A second steel plate (125) is provided, wherein the second steel plate (125) has two grooves (126), the entrance of the groove (126) is two fan-shaped edges (127), and the interior is a rounded rectangle (128); the two second steel plates (125) are respectively connected to the dust cover (81) and the frame (86), and the dust cover (81) and the frame (86) are connected by the protrusions (124) of the rod (120) being respectively clamped into the grooves (126) of the two second steel plates (125).

10. A system for preparing recycled aggregate from construction solid waste, characterized in that: The operating method of the construction solid waste recycled aggregate preparation system according to any one of claims 1 to 9 is operated and used.

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