Equipment and method for recycling waste materials at highway construction sites

Abstract

This invention relates to the field of waste recycling and reuse, and discloses a waste recycling device and method for highway construction sites, including a crushing box; it also includes a filtration and dust removal unit disposed within the crushing box; the filtration and dust removal unit, disposed within the crushing box, includes a drive assembly, a crushing assembly, a compaction assembly, a filter assembly, a dust removal assembly, and a switch assembly; the drive assembly drives the crushing assembly to move; when the unclogged rebar and rebar with concrete are intercepted by the filter assembly, the intercepted rebar and rebar with concrete enter the compaction assembly, the drive assembly drives the compaction assembly to rise and fall, the rising and falling compaction assembly squeezes the rebar and rebar with concrete, crushing the concrete adhering to the rebar, so that all the rebar no longer has concrete adhering to it, thereby obtaining complete rebar, which can then be uniformly collected, processed, and reused.

Description

Technical Field

[0001] This invention relates to the field of waste recycling and reuse, specifically to a waste recycling device and method for highway construction sites. Background Technology

[0002] Construction site waste refers to waste materials or residues generated during construction, decoration, demolition, and other construction processes. Proper management of waste can not only reduce costs and improve efficiency, but also reduce environmental pollution, which is in line with the requirements of sustainable development.

[0003] A construction waste recycling device disclosed in patent CN215087812U includes a base plate, a vertical plate on the top left of the base plate, a second vertical plate on the top of the first vertical plate, an electric push rod on the right front side of the second vertical plate, a connecting plate connected to the rear back of the electric push rod, a third vertical plate on the top of the connecting plate, an adjusting electric push rod on the right side of the third vertical plate, an impact drill connected to the bottom end of the adjusting electric push rod, a connecting baffle on the right side of the connecting plate, a sliding groove on the right side of the connecting baffle, a sliding support rod inside the sliding groove, an impact drill fixedly connected to the top end of the sliding support rod, and a second sliding groove on the right side of the vertical plate, with a supporting slider inside the cavity of the second sliding groove. This device has a simple structure and avoids safety hazards caused by manual operation.

[0004] In existing technology, the up-and-down movement of the impact drill can be controlled by adjusting the electric push rod to crush the waste material, avoiding the need for manual crushing. However, the waste material on site includes concrete blocks, concrete pipes, and other waste materials containing steel bars. Simply using the up-and-down crushing motion of the impact drill cannot completely remove the concrete block waste adhering to the steel bars. As a result, when recycling the waste steel bars, there is still concrete waste remaining on the steel bars, which requires secondary processing and wastes manpower and resources. Summary of the Invention

[0005] The purpose of this invention is to provide a waste recycling device and method for highway construction sites, and to solve the following technical problems.

[0006] The back-and-forth crushing with an impact drill cannot completely remove the concrete debris adhering to the steel bars. As a result, when recycling the scrap steel bars, there is still concrete debris left on them, requiring secondary processing and wasting manpower and resources.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] A waste recycling device for highway construction sites includes a crushing box; and a filtration and dust removal unit installed inside the crushing box.

[0009] The filtration and dust removal unit is disposed inside the crushing chamber and includes a drive assembly, a crushing assembly, a crushing assembly, a filtration assembly, a dust removal assembly, and a switch assembly; the drive assembly drives the crushing assembly to move; the drive assembly drives the crushing assembly to rise and fall; the drive assembly drives the filtration assembly to rotate; the drive assembly drives the dust removal assembly to rotate; and the drive assembly drives the switch assembly to rise and fall.

[0010] Furthermore, the drive assembly includes a drive motor, an eccentric shaft, an eccentric block, and a swaying barrel;

[0011] The crushing assembly includes a fixed rod, a crushing toothed plate, a fixed plate, a first connector, a first shaking plate, a second connector, a second shaking plate, a third connector, a third shaking plate, and a series rod;

[0012] The eccentric shaft is rotatably disposed inside the crushing box; the drive motor is fixedly disposed outside the crushing box and is connected to the eccentric shaft; the eccentric block is fixedly disposed on the eccentric shaft; and the swaying barrel is sleeved on the eccentric block.

[0013] The fixed rod is fixedly installed inside the crushing box; the crushing tooth plate is rotatably installed on the fixed rod; the fixed plate is fixedly installed inside the crushing box; the third connector is fixedly installed on the crushing tooth plate; the third shaking plate is rotatably installed on the third connector; the second connector is fixedly installed on the crushing box; the second shaking plate is rotatably installed on the second connector; the first connector is fixedly installed on the shaking barrel; the first shaking plate is rotatably installed on the first connector; the connecting rod is fixedly installed at one end of the second shaking plate; the other ends of the first shaking plate and the third shaking plate are both rotatably installed on the connecting rod.

[0014] Furthermore, the drive assembly also includes a second pulley, a belt, a first pulley, and a vibration shaft;

[0015] The filtration assembly includes a vibrating block, a vibrating rod, a filter plate, and a top block;

[0016] The second rotating wheel is fixedly mounted at one end of the eccentric shaft; the vibrating shaft is rotatably mounted inside the crushing chamber; the first rotating wheel is fixedly mounted at one end of the vibrating shaft; the belt is sleeved on the first rotating wheel and the second rotating wheel; four vibrating blocks are provided and symmetrically fixedly mounted inside the crushing chamber; the vibrating rod is slidably mounted on the vibrating blocks; the filter plate is fixedly mounted on the top of the vibrating rod; and two top blocks are provided and symmetrically fixedly mounted on the vibrating shaft.

[0017] Furthermore, the drive assembly also includes a driven rod, a worm gear, a fixed block, a half-tooth gear, and a lifting gear plate;

[0018] The compaction assembly includes a compaction box, a mounting rod, and a compaction block;

[0019] The driven rod is rotatably disposed inside the crushing chamber; the worm gear is fixedly disposed in the middle of the driven rod; the vibrating shaft has a worm-shaped thread in the middle, and the worm gear meshes with the worm-shaped thread on the vibrating shaft; the half-tooth gear is fixedly disposed at one end of the driven rod; the crushing chamber is fixedly disposed at one end of the crushing chamber; two mounting rods are provided and symmetrically slidably disposed on the crushing chamber; the crushing block is fixedly disposed at the top of the mounting rod; the lifting tooth plate is fixedly disposed at the bottom of the crushing block, and the lifting tooth plate meshes with the half-tooth gear; the fixed block is fixedly disposed at the top of the crushing chamber, and the driven rod passes through the fixed block.

[0020] Furthermore, the dust removal assembly includes a connecting bucket, a dust collection box, a water inlet, a water outlet, and fan blades;

[0021] The connecting bucket is fixedly installed on one side of the crushing box; the dust removal box is fixedly installed at the other end of the connecting bucket; the water inlet is fixedly installed on the top of the dust removal box; the water outlet is fixedly installed at the bottom of the dust removal box; and the fan blade is fixedly installed at one end of the vibration shaft.

[0022] Furthermore, the switch assembly includes a connecting plate, a lifting plate, a limiting post, a water spray plate, a switch plate, and a switch block;

[0023] The connecting plate is fixedly installed on the top of the mounting rod; the lifting plate is fixedly installed on the top of the connecting plate; the water spraying plate is fixedly installed inside the dust removal box; the switch block is fixedly installed on the top of the water spraying plate; four limiting posts are provided and fixedly installed at the four corners of the top of the water spraying plate; the switch plate is slidably installed on the limiting posts; and the other end of the lifting plate is fixedly connected to the switch plate.

[0024] Furthermore, a limiting rod is fixedly connected to one end of the crushing tooth plate; the limiting rod passes through the crushing box; a limiting spring is sleeved on the limiting rod; and the two ends of the limiting spring are fixedly connected to the crushing box and the limiting rod, respectively.

[0025] Furthermore, a vibration spring is sleeved on the vibration rod; the two ends of the vibration spring are fixedly connected to the vibration block and the vibration rod, respectively.

[0026] A method for recycling waste materials at highway construction sites, comprising the following steps:

[0027] S1: Concrete blocks, concrete pipes and other construction waste are put into the crushing box, and then the crushing tooth plate crushes the concrete blocks, concrete pipes and other construction waste into fine aggregate. The crushed fine aggregate will fall onto the filter plate, and the filter plate will separate the steel bars and fine aggregate.

[0028] S2: The separated steel bars and steel bars with concrete blocks will enter the compaction box. The steel bars with concrete blocks will be crushed again by the compaction blocks and then discharged from the compaction box to obtain complete steel bars.

[0029] S3: During the screening process, the dust generated during screening is absorbed by the fan blades inside the dust collector, and then water is poured into the dust collector through the water inlet to suppress the spread of dust.

[0030] The beneficial effects of this invention are:

[0031] (1) The crushing component is driven by the drive component to work. The working crushing component will crush the waste concrete blocks and concrete pipes, and crush the whole concrete blocks and concrete pipes into a certain degree of fine aggregate. These crushed fine aggregates can be processed into recycled materials. Then, the recycled materials can be used for backfilling of some ditch and pond silt areas, backfilling of construction areas such as secondary roadbeds, etc., to reuse resources and avoid waste of stone materials.

[0032] (2) The filter component is driven by the drive component to work. The filter component will first separate the crushed concrete and steel bars, and the steel bars and steel bars with concrete will be blocked above the filter component. Then the concrete fragments are collected by the filter component. This can quickly distinguish between concrete fragments and steel bars, and the corresponding processing tasks can be formulated according to the classification.

[0033] (3) When the unpassed steel bars and steel bars with concrete are intercepted by the filter component, the intercepted steel bars and steel bars with concrete will enter the compaction component. The drive component will drive the compaction component to rise and fall. The rising and falling compaction component will squeeze the steel bars and steel bars with concrete, so that the concrete adhering to the steel bars will be squeezed and broken, so that no concrete is adhering to all the steel bars, thus obtaining complete steel bars. Then the steel bars can be collected and processed uniformly for reuse.

[0034] (4) When the filter assembly screens concrete and steel bars, a large amount of dust will be generated. In order to avoid the dust from affecting the environment and causing environmental pollution, the dust removal assembly is driven to rotate by the drive assembly. The rotating dust removal assembly will extract the generated dust, and then the extracted dust will be suppressed by spraying water to prevent the dust from overflowing and causing pollution to the surrounding environment.

[0035] (5) When the dust removal component extracts dust, the switch component will switch on and off repeatedly, allowing water to flow out intermittently to suppress dust. This setting is to avoid the waste of water resources caused by continuous water flow. Also, the continuous water curtain will affect the dust extraction effect, causing dust to accumulate on the edge of the dust removal component, thus preventing the dust from mixing with the water flow to achieve the removal effect, and causing the dust to drift into the filter component and cause pollution. Attached Figure Description

[0036] The invention will now be further described with reference to the accompanying drawings.

[0037] Figure 1 This is a top perspective view of the waste recycling equipment of the present invention;

[0038] Figure 2 This is a cross-sectional view of the crushing box in this invention;

[0039] Figure 3 This is a longitudinal cross-sectional view of the crushing box in this invention;

[0040] Figure 4 This is a perspective view of the crushing component in this invention;

[0041] Figure 5 This is a perspective view of the filtering component in this invention;

[0042] Figure 6 This is a perspective view of the rolling component in this invention;

[0043] Figure 7 This is a perspective view of the dust removal component in this invention;

[0044] Figure 8 This is a perspective view of the switching assembly in this invention;

[0045] Figure 9 This is a bottom-view perspective view of the waste recycling equipment of the present invention.

[0046] Figure Descriptions: 1. Crushing box; 2. First impeller; 3. Belt; 4. Second impeller; 5. Drive motor; 6. Dust collector; 7. Lifting plate; 8. Connecting plate; 9. Limiting rod; 10. Limiting spring; 11. Mounting rod; 12. Crushing block; 13. Lifting toothed plate; 14. Half-tooth gear; 15. Water inlet; 16. Water outlet; 17. Driven rod; 18. Fixing block; 19. Crushing toothed plate; 20. Switch plate; 21. Switch block; 22. Fan blade; 23. Connecting barrel; 24. Vibrating shaft; 25. Worm gear; 26. Top block; 27. 1. Filter plate; 28. Eccentric shaft; 29. ​​Eccentric block; 30. Shaking barrel; 31. Fixed rod; 32. First connector; 33. First shaking plate; 34. Second connector; 35. Second shaking plate; 36. Connecting rod; 37. Third shaking plate; 38. Vibrating block; 39. Vibrating spring; 40. Vibrating rod; 41. Third connector; 42. Limiting column; 43. Compaction box; 44. Fixed plate; 45. Sprinkler plate; 46. Crushing assembly; 47. Filter assembly; 48. Compaction assembly; 49. Dust removal assembly; 50. Switch assembly. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Please see Figures 1-9 As shown, the present invention is a waste recycling device for highway construction sites, including a crushing box 1; and also includes a filtration and dust removal unit installed inside the crushing box 1;

[0049] The filtration and dust removal unit is installed inside the crushing box 1 and includes a drive assembly, a crushing assembly 46, a crushing assembly 48, a filter assembly 47, a dust removal assembly 49, and a switch assembly 50. The drive assembly drives the crushing assembly 46 to move; the drive assembly drives the crushing assembly 48 to rise and fall; the drive assembly drives the filter assembly 47 to rotate; the drive assembly drives the dust removal assembly 49 to rotate; and the drive assembly drives the switch assembly 50 to rise and fall.

[0050] First, waste concrete blocks or excess concrete pipes from the construction area are sent to the crushing box 1. The crushing component 46 is driven by the drive component to work. The working crushing component 46 crushes the waste concrete blocks and concrete pipes, breaking them into fine aggregates of a certain degree. These crushed fine aggregates can be processed into recycled materials. The recycled materials can then be used for backfilling in some ditch and pond silt areas, backfilling in secondary roadbeds and other construction areas, thus reusing resources and avoiding waste of stone materials.

[0051] Because some concrete blocks and concrete pipes contain reinforcing bars, some concrete will stick to the reinforcing bars during crushing and leak directly from the crushing component 46. This results in incomplete separation of the reinforcing bars and concrete. Therefore, the driving component first drives the filtering component 47 to work. The filtering component 47 will first separate the crushed concrete and reinforcing bars, blocking the reinforcing bars and reinforcing bars with concrete above the filtering component 47. Then, the concrete fragments are collected centrally by the filtering component 47. This can quickly separate concrete fragments and reinforcing bars, and corresponding processing tasks can be formulated according to the classification.

[0052] When the unpassed steel bars and steel bars with concrete are intercepted by the filter component 47, the intercepted steel bars and steel bars with concrete will enter the compaction component 48. The drive component will drive the compaction component 48 to rise and fall. The rising and falling compaction component 48 will squeeze the steel bars and steel bars with concrete, crushing the concrete adhering to the steel bars, so that no concrete is adhering to all the steel bars, thus obtaining complete steel bars, which can then be collected, processed and reused in a unified manner.

[0053] When the filter component 47 screens concrete and steel bars, it generates a large amount of dust. To prevent the dust from affecting the environment and causing pollution, the dust removal component 49 is driven to rotate by the drive component. The rotating dust removal component 49 will extract the generated dust, and then water will be sprayed to suppress the extracted dust, so that the dust will not overflow and cause pollution to the surrounding environment.

[0054] When the dust removal component 49 extracts dust, the switching component 50 will repeatedly switch on and off, allowing water to flow out intermittently to suppress dust. This setting is to avoid wasting water resources due to continuous water flow. Also, a continuous water curtain will affect the dust extraction effect, causing dust to accumulate at the edge of the dust removal component 49, thus preventing the dust from mixing with the water to achieve the desired removal effect, and causing the dust to drift into the filter component 47 and cause pollution.

[0055] Please see Figure 2 , Figure 3 and Figure 4 As shown, the drive assembly includes a drive motor 5, an eccentric shaft 28, an eccentric block 29, and a swaying barrel 30;

[0056] The crushing assembly 46 includes a fixed rod 31, a crushing toothed plate 19, a fixed plate 44, a first connector 32, a first shaking plate 33, a second connector 34, a second shaking plate 35, a third connector 41, a third shaking plate 37, and a connecting rod 36.

[0057] The eccentric shaft 28 is rotatably mounted inside the crushing box 1; the drive motor 5 is fixedly mounted on the outside of the crushing box 1 and is connected to the eccentric shaft 28; the eccentric block 29 is fixedly mounted on the eccentric shaft 28; and the swaying bucket 30 is sleeved on the eccentric block 29.

[0058] A fixed rod 31 is fixedly installed inside the crushing box 1; a crushing toothed plate 19 is rotatably installed on the fixed rod 31; a fixed plate 44 is fixedly installed inside the crushing box 1; a third connector 41 is fixedly installed on the crushing toothed plate 19; a third shaking plate 37 is rotatably installed on the third connector 41; a second connector 34 is fixedly installed in the crushing box 1; a second shaking plate 35 is rotatably installed on the second connector 34; a first connector 32 is fixedly installed on the shaking barrel 30; a first shaking plate 33 is rotatably installed on the first connector 32; a connecting rod 36 is fixedly installed at one end of the second shaking plate 35; the other ends of the first shaking plate 33 and the third shaking plate 37 are both rotatably installed on the connecting rod 36.

[0059] The eccentric shaft 28 is driven to rotate by the drive motor 5. The rotating eccentric shaft 28 drives the eccentric block 29 to rotate. The rotation of the eccentric block 29 is an eccentric motion, which causes the swaying barrel 30 fitted on it to make an irregular up-and-down motion. This causes the first connector 32 and the first swaying plate 33 to lift or press down the connecting rod 36, so that the second connector 34, the second swaying plate 35, the third connector 41 and the third swaying plate 37 are sometimes bent and sometimes horizontal. This reciprocating change causes the crushing toothed plate 19 to rotate back and forth on the fixed rod 31. The inner side of the crushing box 1 opposite to the crushing toothed plate 19 is also set with teeth. In this way, hard materials such as concrete blocks and concrete pipes put into the crushing box 1 are crushed into fine aggregates.

[0060] Please see Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the drive assembly also includes a second rotating wheel 4, a belt 3, a first rotating wheel 2, and a vibration shaft 24;

[0061] The filter assembly 47 includes a vibrating block 38, a vibrating rod 40, a filter plate 27, and a top block 26;

[0062] The second rotating wheel 4 is fixedly mounted at one end of the eccentric shaft 28; the vibrating shaft 24 is rotatably mounted inside the crushing box 1; the first rotating wheel 2 is fixedly mounted at one end of the vibrating shaft 24; the belt 3 is sleeved on the first rotating wheel 2 and the second rotating wheel 4; four vibrating blocks 38 are provided and symmetrically fixedly mounted inside the crushing box 1; the vibrating rod 40 is slidably mounted on the vibrating blocks 38; the filter plate 27 is fixedly mounted on the top of the vibrating rod 40; and two top blocks 26 are provided and symmetrically fixedly mounted on the vibrating shaft 24.

[0063] The rotation of the eccentric shaft 28 drives the second rotating wheel 4 to rotate, which in turn drives the belt 3 to rotate, thereby driving the first rotating wheel 2 to rotate. The rotation of the first rotating wheel 2 causes the vibrating shaft 24 to rotate, which in turn drives the two top blocks 26 to rotate. The rotating top blocks 26 move upward with the filter plate 27. The upward movement of the filter plate 27 also causes the bottom vibrating rod 40 to slide on the vibrating block 38. When the top blocks 26 are no longer in contact with the filter plate 27, the filter plate 27 will fall downward due to gravity, thereby contacting the vibrating block 38 and causing it to collide and generate vibration. This allows the broken concrete block located at the top of the filter plate 27 to pass through quickly, while the reinforcing steel is trapped above the filter plate 27, thus achieving the effect of separating the broken concrete block from the reinforcing steel.

[0064] Please see Figure 1 , Figure 2 , Figure 6 and Figure 9 As shown, the drive assembly also includes a driven rod 17, a worm gear 25, a fixed block 18, a half-tooth gear 14, and a lifting gear plate 13;

[0065] The compaction assembly 48 includes a compaction box 43, a mounting rod 11, and a compaction block 12;

[0066] The driven rod 17 is rotatably mounted inside the crushing box 1; the worm gear 25 is fixedly mounted in the middle of the driven rod 17; the vibrating shaft 24 has a worm-shaped thread in the middle, and the worm gear 25 meshes with the worm-shaped thread on the vibrating shaft 24; the half-tooth gear 14 is fixedly mounted at one end of the driven rod 17; the crushing box 43 is fixedly mounted at one end of the crushing box 1; there are two mounting rods 11, which are symmetrically slidably mounted on the crushing box 43; the crushing block 12 is fixedly mounted at the top of the mounting rod 11; the lifting tooth plate 13 is fixedly mounted at the bottom of the crushing block 12, and the lifting tooth plate 13 meshes with the half-tooth gear 14; the fixing block 18 is fixedly mounted at the top of the crushing box 43, and the driven rod 17 passes through the fixing block 18.

[0067] The vibrating shaft 24 is located between the two top blocks 26 and has a worm-like thread at one end. When the vibrating shaft 24 rotates, the turbine on the driven rod 17 engages with the worm-like thread, thereby driving the driven rod 17 to rotate. The rotating driven rod 17 causes the half-tooth gear 14 to rotate, and the rotating half-tooth gear 14 engages with the lifting tooth plate 13, causing the lifting tooth plate 13 to move upward with the mounting rod 11 and the crushing block 12. When the half-tooth gear 14 is not engaged with the lifting tooth plate 13, the mounting rod 11 and the crushing block 12 will fall rapidly downward due to their own gravity. This is designed so that when the filtered and separated steel bars slide freely into the crushing box 43 (the filter plate 27 is set with a certain slope), the steel bars with concrete blocks will also enter the crushing box 43. Therefore, the rapidly falling crushing block 12 crushes the steel bars with concrete blocks, breaking and separating the concrete blocks on the steel bars, thereby obtaining a batch of clean steel bars without concrete covering.

[0068] Please see Figure 3 and Figure 7 As shown, the dust removal assembly 49 includes a connecting bucket 23, a dust removal box 6, a water inlet 15, a water outlet 16, and a fan blade 22;

[0069] The connecting bucket 23 is fixedly installed on one side of the crushing box 1; the dust removal box 6 is fixedly installed at the other end of the connecting bucket 23; the water inlet 15 is fixedly installed on the top of the dust removal box 6; the water outlet 16 is fixedly installed at the bottom of the dust removal box 6; and the fan blade 22 is fixedly installed at one end of the vibration shaft 24.

[0070] The vibration shaft 24 rotates, driving the fan blade 22 to rotate. The side of the crushing box 1 near the fan blade 22 has holes. When the fan blade 22 rotates, it absorbs the dust sieved by the filter plate 27 and sucks the generated dust into the dust collector 6. Then, water is poured into the dust collector 6 through the water inlet 15 to suppress the sucked-in dust. Then, the wastewater mixed with dust and water is discharged from the dust collector 6 through the water outlet 16.

[0071] Please see Figure 1 , Figure 3 , Figure 8 and Figure 9 As shown, the switch assembly 50 includes a connecting plate 8, a lifting plate 7, a limiting post 42, a water spray plate 45, a switch plate 20, and a switch block 21;

[0072] The connecting plate 8 is fixedly installed on the top of the mounting rod 11; the lifting plate 7 is fixedly installed on the top of the connecting plate 8; the water spray plate 45 is fixedly installed inside the dust collection box 6; the switch block 21 is fixedly installed on the top of the water spray plate 45; four limiting posts 42 are provided and fixedly installed at the four corners of the top of the water spray plate 45; the switch plate 20 is slidably installed on the limiting posts 42; and the other end of the lifting plate 7 is fixedly connected to the switch plate 20.

[0073] When the mounting rod 11 and the compaction block 12 move upward, the connecting plate 8 and the lifting plate 7 also move upward. The upward-moving lifting plate 7 lifts the switch plate 20 upward, thus separating it from the switch block 21 of the sprinkler plate 45 to form a channel, allowing water to be sprayed into the dust collection box 6. When the mounting rod 11 and the compaction block 12 move downward, the switch plate 20 is also moved downward, thus aligning with the switch block 21 and preventing water from passing through the sprinkler plate 45. The limiting post 42 on the sprinkler plate 45 is to allow the switch plate 20 to move vertically up and down.

[0074] Please see Figure 1 , Figure 2 , Figure 4 and Figure 9 As shown, a limiting rod 9 is fixedly connected to one end of the crushing tooth plate 19; the limiting rod 9 passes through the crushing box 1; a limiting spring 10 is sleeved on the limiting rod 9; the two ends of the limiting spring 10 are fixedly connected to the crushing box 1 and the limiting rod 9 respectively.

[0075] The purpose of setting a limiting rod 9 and a limiting spring 10 at one end of the crushing tooth plate 19 is to ensure that the crushing tooth plate 19 has extensibility after the concrete block or concrete pipe enters the crushing box 1, so that the crushing tooth plate 19 will not get stuck due to structural limitations.

[0076] Please see Figure 2 and Figure 5 As shown, a vibration spring 39 is sleeved on the vibration rod 40; the two ends of the vibration spring 39 are fixedly connected to the vibration block 38 and the vibration rod 40, respectively.

[0077] The vibration spring 39 is sleeved on the vibration rod 40 so that the vibration spring 39 can quickly pull back the filter plate 27, making the filter plate 27 descend faster, thereby achieving a better vibration effect.

[0078] Please see Figures 1 to 9 As shown, a method for recycling waste materials at a highway construction site includes the following steps:

[0079] S1: Concrete blocks, concrete pipes and other construction waste are put into the crushing box 1, and then the crushing tooth plate 19 crushes the concrete blocks, concrete pipes and other construction waste into fine aggregate. The crushed fine aggregate will fall onto the filter plate 27, and the filter plate 27 separates the steel bars and fine aggregate.

[0080] S2: The separated steel bars and the steel bars with concrete blocks will enter the compaction box 43. The steel bars with concrete blocks will be crushed again by the compaction block 12 and then discharged from the compaction box 43 to obtain complete steel bars.

[0081] S3: During the screening process, the dust generated during screening is absorbed by the fan blades 22 inside the dust collector 6, and then water is poured into the dust collector 6 through the water inlet 15 to suppress the spread of dust.

[0082] The working principle of this invention is as follows: First, waste concrete blocks or excess concrete pipes and other construction waste materials in the construction area are sent to the crushing box 1. The crushing component 46 is driven by the drive component to work. The working crushing component 46 will crush the waste concrete blocks and concrete pipes, breaking them into fine aggregates of a certain degree. These crushed fine aggregates can be processed into recycled materials. Then, the recycled materials can be used for backfilling of silt areas in ditches and ponds, backfilling of subgrade roadbeds and other construction areas, so as to reuse resources and avoid the waste of stone materials.

[0083] Because some concrete blocks and concrete pipes contain reinforcing bars, some concrete will stick to the reinforcing bars during crushing and leak directly from the crushing component 46. This results in incomplete separation of the reinforcing bars and concrete. Therefore, the driving component first drives the filtering component 47 to work. The filtering component 47 will first separate the crushed concrete and reinforcing bars, blocking the reinforcing bars and reinforcing bars with concrete above the filtering component 47. Then, the concrete fragments are collected centrally by the filtering component 47. This can quickly separate concrete fragments and reinforcing bars, and corresponding processing tasks can be formulated according to the classification.

[0084] When the unpassed steel bars and steel bars with concrete are intercepted by the filter component 47, the intercepted steel bars and steel bars with concrete will enter the compaction component 48. The drive component will drive the compaction component 48 to rise and fall. The rising and falling compaction component 48 will squeeze the steel bars and steel bars with concrete, crushing the concrete adhering to the steel bars, so that no concrete is adhering to all the steel bars, thus obtaining complete steel bars, which can then be collected, processed and reused in a unified manner.

[0085] When the filter component 47 screens concrete and steel bars, it generates a large amount of dust. To prevent the dust from affecting the environment and causing pollution, the dust removal component 49 is driven to rotate by the drive component. The rotating dust removal component 49 will extract the generated dust, and then water will be sprayed to suppress the extracted dust, so that the dust will not overflow and cause pollution to the surrounding environment.

[0086] When the dust removal component 49 extracts dust, the switching component 50 will repeatedly switch on and off, allowing water to flow out intermittently to suppress dust. This setting is to avoid wasting water resources due to continuous water flow. Also, a continuous water curtain will affect the dust extraction effect, causing dust to accumulate at the edge of the dust removal component 49, thus preventing the dust from mixing with the water to achieve the desired removal effect, and causing the dust to drift into the filter component 47 and cause pollution.

[0087] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A highway construction site waste recycling plant comprising a crushing box (1); characterized in that, The filter dust removal unit is arranged in the crushing box (1) and comprises a driving assembly, a crushing assembly (46), a rolling assembly (48), a filtering assembly (47), a dust removal assembly (49) and a switching assembly (50). The driving assembly drives the crushing assembly (46) to move, drives the rolling assembly (48) to lift and lower, drives the filtering assembly (47) to rotate, drives the dust removal assembly (49) to rotate and drives the switching assembly (50) to lift and lower. The driving assembly comprises a driving motor (5), an eccentric shaft (28), an eccentric block (29) and a swinging barrel (30). The crushing assembly (46) comprises a fixed rod (31), a crushing tooth plate (19), a fixed plate (44), a first connector (32), a first swinging plate (33), a second connector (34), a second swinging plate (35), a third connector (41), a third swinging plate (37) and a series connection rod (36). The eccentric shaft (28) is rotatably arranged in the crushing box (1), the driving motor (5) is fixedly arranged outside the crushing box (1) and communicates with the eccentric shaft (28), the eccentric block (29) is fixedly arranged on the eccentric shaft (28), and the swinging barrel (30) is sleeved on the eccentric block (29). The fixed rod (31) is fixedly arranged in the crushing box (1), the crushing tooth plate (19) is rotatably arranged on the fixed rod (31), the fixed plate (44) is fixedly arranged in the crushing box (1), the third connector (41) is fixedly arranged on the crushing tooth plate (19), the third swinging plate (37) is rotatably arranged on the third connector (41), the second connector (34) is fixedly arranged on the crushing box (1), the second swinging plate (35) is rotatably arranged on the second connector (34), the first connector (32) is fixedly arranged on the swinging barrel (30), the first swinging plate (33) is rotatably arranged on the first connector (32), one end of the series connection rod (36) is fixedly arranged on the second swinging plate (35), and the other ends of the first swinging plate (33) and the third swinging plate (37) are rotatably arranged on the series connection rod (36). The driving assembly further comprises a second rotating wheel (4), a belt (3), a first rotating wheel (2) and a vibrating shaft (24). The filtering assembly (47) comprises a vibrating block (38), a vibrating rod (40), a filter plate (27) and a top block (26). The second rotating wheel (4) is fixedly arranged at one end of the eccentric shaft (28); the vibrating shaft (24) is rotatably arranged in the crushing box (1); the first rotating wheel (2) is fixedly arranged at one end of the vibrating shaft (24); the belt (3) is sleeved on the first rotating wheel (2) and the second rotating wheel (4); the vibrating blocks (38) are arranged in four and fixedly arranged symmetrically in the crushing box (1); the vibrating rod (40) is slidably arranged on the vibrating block (38); the filter plate (27) is fixedly arranged at the top of the vibrating rod (40); and the top blocks (26) are arranged in two and fixedly arranged symmetrically on the vibrating shaft (24).

2. A highway construction site waste recycling apparatus as claimed in claim 1, wherein, The driving assembly further comprises a driven rod (17), a worm wheel (25), a fixed block (18), a half-tooth gear (14) and a lifting toothed plate (13); The rolling assembly (48) comprises a rolling box (43), a mounting rod (11) and a rolling block (12); The driven rod (17) is rotatably arranged in the crushing box (1); the worm wheel (25) is fixedly arranged at the middle of the driven rod (17); the vibrating shaft (24) is provided with a worm thread at the middle, and the worm wheel (25) is engaged with the worm thread on the vibrating shaft (24); the half-tooth gear (14) is fixedly arranged at one end of the driven rod (17); the rolling box (43) is fixedly arranged at one end of the crushing box (1); the mounting rods (11) are arranged in two and slidably arranged symmetrically on the rolling box (43); the rolling block (12) is fixedly arranged at the top of the mounting rod (11); the lifting toothed plate (13) is fixedly arranged at the bottom of the rolling block (12), and the lifting toothed plate (13) is engaged with the half-tooth gear (14); and the fixed block (18) is fixedly arranged at the top of the rolling box (43), and the driven rod (17) penetrates through the fixed block (18).

3. A highway construction site waste recycling apparatus as claimed in claim 2, wherein, The dust removal assembly (49) comprises a connecting barrel (23), a dust removal box (6), a water inlet (15), a water outlet (16) and a fan leaf (22); The connecting barrel (23) is fixedly arranged at one side of the crushing box (1); the dust removal box (6) is fixedly arranged at the other end of the connecting barrel (23); the water inlet (15) is fixedly arranged at the top of the dust removal box (6); the water outlet (16) is fixedly arranged at the bottom of the dust removal box (6); and the fan leaf (22) is fixedly arranged at one end of the vibrating shaft (24).

4. A highway construction site waste recycling apparatus as claimed in claim 3, wherein, The switch assembly (50) comprises a connecting plate (8), a lifting plate (7), a limiting column (42), a sprinkling plate (45), a switch plate (20) and a switch block (21); The connecting plate (8) is fixedly arranged at the top of the mounting rod (11); the lifting plate (7) is fixedly arranged at the top of the connecting plate (8); the watering plate (45) is fixedly arranged in the dust removal box (6); the switch block (21) is fixedly arranged at the top of the watering plate (45); the limiting column (42) is provided with four, and is fixedly arranged at the top of the four corners of the watering plate (45); the switch plate (20) is slidingly arranged on the limiting column (42); the other end of the lifting plate (7) is fixedly connected with the switch plate (20).

5. A highway construction site waste recycling apparatus as claimed in claim 4, wherein, One end of the crushing tooth plate (19) is fixedly connected with a limiting rod (9); the limiting rod (9) penetrates through the crushing box (1); the limiting rod (9) is sleeved with a limiting spring (10); the two ends of the limiting spring (10) are fixedly connected with the crushing box (1) and the limiting rod (9) respectively.

6. A highway construction site waste recycling apparatus as claimed in claim 5, wherein, The vibration rod (40) is sleeved with a vibration spring (39); the two ends of the vibration spring (39) are fixedly connected with the vibration block (38) and the vibration rod (40) respectively.

7. A method for recycling waste materials at a highway construction site using the waste material recycling apparatus according to claim 6, characterized in that: The recycling method comprises the following steps: S1: the construction waste such as concrete blocks and concrete pipes is put into the crushing box (1), and then the construction waste such as concrete blocks and concrete pipes is crushed into fine aggregate by the crushing tooth plate (19); the crushed fine aggregate falls on the filter plate (27), and the filter plate (27) separates the reinforcing steel bars from the fine aggregate; S2: the separated reinforcing steel bars and reinforcing steel bars with concrete blocks enter the rolling box (43), the reinforcing steel bars with concrete blocks are crushed again by the rolling block (12), and then the complete reinforcing steel bars are discharged from the rolling box (43); S3: in the screening process, the dust generated in the screening process is absorbed by the fan blade (22) in the dust removal box (6), and then water is poured into the dust removal box (6) through the water inlet (15), so that the water flow inhibits the dust diffusion.

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