A waste environmental protection treatment device for highway construction

Abstract

The present application relates to the field of waste treatment, in particular to a kind of waste environmental protection treatment device for highway construction, including conveyor and magnetic screening part, the present application makes full use of the gravitational potential energy of construction waste itself, and the gravitational potential energy of construction waste itself is used to drive magnetic screening part to select, and magnetic screening part realizes contact with magnet block in the process of rotation to have magnetism, and with the rotation of magnetic screening part, magnetic screening part is gradually separated from magnet block, and in this process, magnetic screening part completes the adsorption and transfer of reinforcing steel bars in construction waste, and in the whole process, magnetic screening part also carries out corresponding screening to the concrete of construction waste with its rotation, the present application improves the screening efficiency of construction waste.

Description

Technical Field

[0001] This invention relates to the field of waste treatment, specifically to an environmentally friendly waste treatment device for highway construction. Background Technology

[0002] With the continuous development of the construction industry, construction waste has increased significantly. Construction waste has good performance and durability, and its recycled aggregates and products can be used in roadbeds of various grades of highways and urban roads, thereby reducing the demand for new materials in highway construction and reducing the emission of construction waste. However, construction waste needs to go through crushing and screening processes during processing. It is particularly important to note that construction waste often contains reinforcing steel bars, so the screening of construction waste requires additional treatment of the reinforcing steel bars. Since reinforcing steel bars and concrete are completely different materials, concrete and reinforcing steel bars need to be screened separately. The screening principles and the mechanical equipment used for screening are also completely different, which increases the workload of screening, such as screening through multi-stage screening. Moreover, the screening process of concrete and metal is completed by different mechanisms. Therefore, it is particularly important to complete the primary screening of construction waste with as little equipment involvement and as low energy consumption as possible. Summary of the Invention

[0003] To address the problems of existing technologies, this invention provides an environmentally friendly waste treatment device for highway construction.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an environmentally friendly waste treatment device for highway construction, comprising:

[0005] Conveyor;

[0006] The magnetic screening unit is a rotatable structure fixed to the lower front end of the conveyor. The construction waste output from the conveyor drives the magnetic screening unit to rotate. During rotation, the magnetic screening unit completes the screening of construction waste of different volumes, as well as the screening of metal waste and concrete waste.

[0007] The magnetic screening section includes:

[0008] The screening component, located below the conveyor outlet, is a rotatable structure.

[0009] The base is connected to the screening component, with the main body of the screening component located in the middle of the base. The screening component can rotate relative to the base.

[0010] The magnet block is located on one side of the base, facing the screening component. The screening component can rotate relative to the magnet block, and as the screening component rotates, the magnet block can come into contact with the screening component.

[0011] The material separating component is located below the screening component.

[0012] A feed hopper is provided at the front outlet of the conveyor. The upper opening area of ​​the feed hopper is larger than the lower opening area. The feed hopper is fixedly connected to one side of the magnetic screening section.

[0013] The screening component includes:

[0014] The inclined plate is a rectangular plate-shaped structure that is fixed at an angle to the base.

[0015] The upright plate is a rectangular plate structure that is vertically and fixedly connected to the base, while the inclined plate is set at an angle relative to the upright plate.

[0016] The pivot is located between the inclined plate and the vertical plate. The pivot is inclined relative to the base. The height of the pivot near the inclined plate is greater than the height of the pivot near the vertical plate. One side of the pivot is rotatably connected to the inside of the inclined plate, and the other side of the pivot is rotatably connected to the inside of the vertical plate.

[0017] A magnetic screen is fixed on the outer surface of a rotating shaft. The rotating shaft drives the magnetic screen to rotate clockwise. There are several magnetic screens, which are evenly distributed on the rotating shaft. The magnetic screens are tilted to the right relative to the base.

[0018] A magnetic adsorption window is provided through the inclined plate, and the center of the magnetic adsorption window coincides with the center of the rotating shaft on the inclined plate. The magnetic adsorption window is located on the front side of the inclined plate.

[0019] The magnetic sieve includes:

[0020] The frame is shaped like a "Π" and its main body is made of iron. One side of the frame is fixedly connected to the outer surface of the pivot, while the other side of the frame faces outward.

[0021] The adsorption rod is a cylindrical structure, and its main body is made of iron. The adsorption rod is located inside the frame. One end of the adsorption rod is fixedly connected to one side of the frame, and the other end of the adsorption rod is fixedly connected to the other side of the frame. There are several adsorption rods, which are evenly distributed along the width of the frame, and a material leakage gap is formed between adjacent adsorption rods.

[0022] The magnetic conduction protrusions are block-shaped structures with a "∩" cross-section. They are fixed to the left edge of the frame and protrude from the left edge of the frame. There are several magnetic conduction protrusions, which are evenly distributed along the width of the frame.

[0023] The material distribution component includes:

[0024] The coarse aggregate trough is connected to the vertical plate and the base, and the main body of the coarse aggregate trough is located on the right side of the magnetic screen.

[0025] The secondary coarse aggregate plate is located on the front side of the base and extends towards the front side of the base.

[0026] The fine material trough is a funnel-shaped structure located below the magnetic screen. The finer materials screened out by the magnetic screen enter the fine material trough and are recycled.

[0027] The steel reinforcement collection trough is fixed to the rear of the base and is located behind the magnetic screen. A baffle is installed between the steel reinforcement collection trough and the fine material trough.

[0028] Compared with existing technologies, the beneficial effects of the invention are: it improves the screening efficiency of construction waste, makes full use of the gravitational potential energy of the construction waste itself, drives the magnetic screening section to select materials through the gravitational potential energy of the construction waste, and the magnetic screening section comes into contact with the magnet during rotation, thus becoming magnetic. As the magnetic screening section rotates, it gradually separates from the magnet. During this process, the magnetic screening section completes the adsorption and transfer of steel bars in the construction waste, and the magnetic screening section also screens the concrete in the construction waste as it rotates. Attached Figure Description

[0029] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0030] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0031] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0032] Figure 3 This is a schematic diagram of the three-dimensional structure of the magnetic sieving section in this invention. Figure 1 .

[0033] Figure 4 This is a schematic diagram of the three-dimensional structure of the magnetic sieving section in this invention. Figure 2 .

[0034] Figure 5 This is a schematic diagram of the three-dimensional structure of the magnetic sieving section in this invention. Figure 3 .

[0035] Figure 6 yes Figure 5 Schematic diagram of the structure at point A in the middle.

[0036] Figure 7 This is a schematic diagram of the three-dimensional structure of the magnetic sieve in this invention.

[0037] Figure 8 This is a schematic diagram of the three-dimensional structure of the magnetic screening section of the present invention. Figure 4 .

[0038] The components include: 1. Conveyor; 11. Suspension beam; 12. Feed hopper; 121. Connecting rod; 2. Magnetic screening section; 21. Screening component; 212. Inclined plate; 2121. Magnetic adsorption window; 2122. Limiting frame; 213. Vertical plate; 2131. Discharge port; 214. Rotating shaft; 215. Magnetic screen; 2151. Frame; 2152. Adsorption rod; 21521. Material leakage gap; 2153. Magnetic conduction protrusion; 22. Base; 23. Magnet block; 24. Material distribution component; 241. Coarse aggregate trough; 2411. Drop trough; 24111. Inclined surface; 2412. Buffer plate; 24121. Notch; 2413. Buffer spring; 242. Secondary coarse aggregate plate; 243. Fine aggregate trough; 244. Reinforcing bar aggregate trough; 2441. Baffle plate. Detailed Implementation

[0039] The present invention will be further described in detail below through embodiments. These embodiments are only used to illustrate the present invention and do not limit the scope of the present invention.

[0040] An environmentally friendly waste treatment device for highway construction includes:

[0041] Conveyor 1, with a suspension beam 11 at the bottom, is fixedly connected to the ground via the suspension beam 11; conveyor 1 is used to transport crushed construction waste (solid).

[0042] The magnetic screening unit 2 is a rotatable structure fixed to the lower front end of the conveyor 1. The construction waste output from the conveyor 1 drives the magnetic screening unit 2 to rotate. During rotation, the magnetic screening unit 2 screens construction waste of different volumes, as well as metal waste and concrete waste. There is a certain height difference between the magnetic screening unit 2 and the outlet of the conveyor 1, so the construction waste conveyed from the conveyor 1 has a certain gravitational potential energy relative to the magnetic screening unit 2. This gravitational potential energy is then used to drive the rotation of the magnetic screening unit 2. Simultaneously, the magnetic screening unit 2 generates magnetic force during rotation, which is used to screen solid concrete waste and metal waste such as reinforcing bars. Meanwhile, the magnetic screening section 2 itself has a screening structure that can screen construction waste particles of different sizes. That is, it uses the gravitational potential energy of the construction waste itself to drive the "rotation" of the magnetic screening section 2. The rotation of the magnetic screening section 2 completes the screening of construction waste of different sizes, as well as the screening of metal materials and concrete materials. The conveyor 1 sends the construction waste into the magnetic screening section 2. After screening by the magnetic screening section 2, the primary filtration and screening of the construction waste is completed. Of course, the material screened by this scheme can be screened again in subsequent screening operations. At the same time, the material screened by the primary filtration of this scheme is also convenient for further fine screening in subsequent processes.

[0043] Magnetic screening unit 2 includes:

[0044] Screening component 21 is located at the lower part of the outlet of conveyor 1. Screening component 21 is a rotatable structure, and the main body of screening component 21 is a structure similar to a "screen".

[0045] The base 22 is connected to the screening component 21. The main body of the screening component 21 is located in the middle of the base 22 and the screening component 21 can rotate relative to the base 22. The base 22 is provided with support legs at the bottom and the upper surface of the base 22 is horizontal.

[0046] Magnet block 23 is located on one side of base 22, facing the screening component 21. Under the impact of construction waste, the screening component 21 can rotate relative to magnet block 23. As the screening component 21 rotates, magnet block 23 can come into contact with it. Magnet block 23 acts as a magnetic source, and its position is fixed relative to base 22, while the main body of screening component 21 can rotate relative to magnet block 23. Thus, through the rotation of screening component 21, the main body of screening component 21 can "intermittently" come into contact with magnet block 23. When the main body of the screening component 21 comes into contact with the magnet block 23, the main body of the screening component 21 instantly becomes "magnetic". At this time, the screening component 21 can screen two different types of construction waste, concrete and steel bars. At the same time, the screening component 21 can screen construction waste (concrete) of different volumes or particle sizes. That is, the rotation of the main body of the screening component 21 can complete the screening of concrete of different volumes, and the intermittent acquisition and disappearance of the "magnetism" of the screening component 21 can complete the screening of steel bars and concrete.

[0047] The material sorting component 24 is located below the screening component 21. The material sorting component 24 sorts and collects concrete of different volumes, and at the same time separates and collects concrete and reinforcing steel.

[0048] Construction waste is screened by the screening component 21 and enters the sorting component 24, where it is collected and classified. As the screening component 21 rotates, it screens concrete of different volumes or particle sizes. Simultaneously, as the screening component 21 rotates, it acquires magnetism, thus separating concrete and reinforcing steel. The sorting component 24 then classifies and collects the concrete and reinforcing steel according to the circular running trajectory of the main body of the screening component 21.

[0049] A feed hopper 12 is installed at the front outlet of conveyor 1. The upper opening area of ​​feed hopper 12 is larger than the lower opening area. Feed hopper 12 is fixedly connected to one side of magnetic screening section 2. Specifically, one side of feed hopper 12 is fixedly connected to one side of magnetic screening section 2 via connecting rod 121. Figure 1The outlet of the feed hopper 12 is downward and located above the screening component 21. Construction waste enters the feed hopper 12 from the conveyor 1 and then passes through the feed hopper 12 to "adjust its direction" so that the construction waste discharged from the feed hopper 12 can directly "impact" the screening component 21 (magnetic screen 215), thereby maximizing the use of the gravitational potential energy of the construction waste to make the magnetic screen 215 rotate clockwise.

[0050] Screening component 21 includes:

[0051] The inclined plate 212 is a rectangular plate structure that is fixed to the base 22 at an inclination; specifically, the inclined plate 212 is inclined towards the inside of the base 22, and the magnet block 23 is fixed to the inclined plate 212.

[0052] The upright plate 213 is a rectangular plate structure, which is vertically fixed to the base 22, and the inclined plate 212 is inclined relative to the upright plate 213;

[0053] The rotating shaft 214, a cylindrical rod structure, is located between the inclined plate 212 and the vertical plate 213. The rotating shaft 214 is inclined relative to the base 22, with its height near the inclined plate 212 greater than its height near the vertical plate 213. One side of the rotating shaft 214 is rotatably connected to the inner side of the inclined plate 212, and the other side is rotatably connected to the inner side of the vertical plate 213. The rotating shaft 214 is inclined towards the vertical plate 213, thus maximizing the initial contact volume with the magnetic screen 215. The fixed particles move along the magnetic screen 215 (discussed later) and the rotating shaft 214 to the right, i.e. towards the vertical plate 213; the outlet of the feed hopper 12 is located in front of the rotating shaft 214. Thus, when the construction waste moves downward through the feed hopper 12 and enters the screening component 21, the falling construction waste first falls into the magnetic screen 215 (discussed later), which is located in front of the rotating shaft 214. At this time, under the "impact" of the construction waste, the magnetic screen 215 drives the rotating shaft 214 to rotate clockwise.

[0054] A magnetic screen 215 is fixed on the outer surface of a rotating shaft 214. The rotating shaft 214 drives the magnetic screen 215 to rotate clockwise. There are several magnetic screens 215, which are evenly distributed on the rotating shaft 214. The magnetic screens 215 are tilted to the right relative to the base 22. The main body of the magnetic screen 215 is made of iron. When the magnetic screen 215 comes into contact with the magnet block 23, it can generate magnetic force. Through this magnetic force, it can attract the steel bars in the construction waste. At the same time, the magnetic screen 215 itself is similar to a "sieve" structure. With the rotation of the magnetic screen 215, the magnetic screen 215 can intermittently have magnetism. The magnetic screen 215 can simultaneously screen construction waste (concrete) particles of different volumes.

[0055] A magnetic adsorption window 2121 is formed through the inclined plate 212. The center of the magnetic adsorption window 2121 coincides with the center of the rotating shaft 214 on the inclined plate 212. The magnetic adsorption window 2121 is located on the front side of the inclined plate 212, so that when the magnetic screen 215 rotates clockwise, the magnetic screen 215 can pass through the magnetic adsorption window 2121. The magnet 23 is fixed on the inclined plate 212. Preferably, the magnet 23 passes through the magnetic adsorption window 2121 and the inner end face of the magnetic adsorption window 2121 is aligned with the magnet 23. The right end face is flush; as the magnetic screen 215 rotates clockwise, the magnetic screen 215 passes through the magnetic adsorption window 2121. At this time, the magnet block 23 comes into contact with the magnetic screen 215, and the magnetic screen 215 generates magnetic force, which can attract the steel bar located on it. As the magnetic screen 215 continues to rotate clockwise, the magnetic screen 215 separates from the magnetic adsorption window 2121. At this time, the magnet block 23 loses contact with the magnetic screen 215, the magnetism of the magnetic screen 215 disappears, and the steel bar separates from the magnetic screen 215.

[0056] The preferred magnetic adsorption window 2121 is fan-shaped; the magnetic adsorption window 2121 can also be rectangular or other shapes, as long as it can make contact with the magnetic screen 215 when the magnetic screen 215 rotates clockwise.

[0057] A limiting frame 2122 is fixed on the inclined plate 212. The projection of the limiting frame 2122 toward the magnetic adsorption window 2121 covers the magnetic adsorption window 2121. The magnet block 23 is fixed inside the limiting frame 2122. The shape of the magnet block 23 is diverse, and the magnet block 23 can also be composed of multiple magnets. In this solution, the magnet block 23 can be adapted to the shape of the magnetic adsorption window 2121. For example, the shape of the contact between the magnet block 23 and the magnetic adsorption window 2121 is consistent with the shape of the magnetic adsorption window 2121. Alternatively, the magnet block 23 can be composed of several small magnets, and the small magnets can be set inside the magnetic adsorption window 2121.

[0058] Please refer to this carefully. Figure 6 The magnetic sieve 215 includes:

[0059] The frame 2151 has a "Π" shaped structure. Its main body is made of iron. One side of the frame is fixedly connected to the outer surface of the rotating shaft 214, and the other side of the frame 2151 faces outward.

[0060] The adsorption rod 2152 is a cylindrical structure, mainly made of iron. It is located within the frame 2151, with one end fixedly connected to one side of the frame 2151 and the other end fixedly connected to the other side. Several adsorption rods 2152 are evenly distributed along the width of the frame 2151, forming a material leakage gap 21521 between adjacent rods. The distribution of the adsorption rods 2152 on the frame 2151 and the formation of these gaps... The magnetic sieve 215 is designed to resemble a screen structure, facilitating initial screening of concrete. The adsorption rods 2152 are horizontally positioned, and both the frame 2151 (as a carrier) and the adsorption rods 2152 are made of iron. When in contact with the magnet block 23, the frame 2151 transfers magnetism to the adsorption rods 2152, creating a strong magnetic field between the adsorption rods 2152 and adjacent rods. This facilitates the adsorption of reinforcing bars on the rods. In short, the structural cooperation between the adsorption rods 2152 and the frame 2151 simultaneously screens the concrete and uses the generation and disappearance of magnetism to adsorb and separate reinforcing bars.

[0061] The magnetic conduction protrusion 2153 has a block-shaped structure with a "∩"-shaped cross-section. It is fixed to the left edge of the frame 2151. The magnetic conduction protrusion 2153 protrudes from the left edge of the frame 2151. There are several magnetic conduction protrusions 2153, which are evenly distributed along the width of the frame 2151. Preferably, the number of magnetic conduction protrusions 2153 is the same as that of the adsorption rods 2152, and the magnetic conduction protrusions 2153 are located at the left end of the adsorption rods 2152. The center line of the magnetic conduction protrusions 2153 coincides with the center line of the adsorption rods 2152, and the magnetic conduction protrusions 2153 and adsorption rods 2152 are matched and correspond. The arc-shaped structure on the outer side of the magnetic conduction protrusion 2153 makes the magnetic conduction protrusion... The magnetic conduction protrusion 2153 can directly contact the surface of the magnet block 23, and at the same time, it is easy for the magnetic conduction protrusion 2153 to directly detach from the surface of the magnet block 23. As the magnetic screen 215 rotates, the magnetic conduction protrusion 2153 contacts the surface of the magnet block 23 when it passes through the magnetic adsorption window 2121. When the magnetic conduction protrusion 2153 deviates from the magnetic adsorption window 2121, the magnetic conduction protrusion 2153 immediately separates from the magnet block 23. The magnetic conduction protrusion 2153 "conducts" the magnetism of the magnet block 23 to the frame 2151, and then "conducts" it to the adsorption rod 2152 through the frame 2151, thereby generating magnetism between the adsorption rod 2152 and each adsorption rod 2152 to adsorb the steel bars.

[0062] Please see Figure 3 The 24 sub-components include:

[0063] The coarse aggregate trough 241 is connected to the vertical plate 213 and the base 22. The main body of the coarse aggregate trough 241 is located to the right of the magnetic screen 215. Because the magnetic screen 215 and the rotating shaft 214 are both inclined to the right, the large volume construction waste (concrete material) that is first processed by the magnetic screen 215 enters the coarse aggregate trough 241 along the magnetic screen 215 and the rotating shaft 214 to the right, thereby gathering the large volume construction waste on the right side of the base 22.

[0064] The secondary coarse aggregate plate 242 is located in front of the base 22 and extends towards the front of the base 22. At the same time, the secondary coarse aggregate plate 242 is located in front of the magnetic screen 215. When the magnetic screen 215 rotates clockwise, the secondary coarse material thrown out from the magnetic screen 215 falls onto the secondary coarse aggregate plate 242. The volume of the secondary coarse material is slightly smaller than the volume of the large-volume construction waste (concrete material). As the magnetic screen 215 rotates clockwise, the magnetic screen 215 gradually tilts downward. Therefore, a portion of the secondary coarse aggregate separates from the magnetic screen 215 and enters the secondary coarse aggregate plate 242 to be collected. Note that at this time, the magnetic screen 215 is in contact with the magnet block 23. Therefore, the reinforcing bar is still attracted by the magnetic screen 215 and will not move with the secondary coarse aggregate.

[0065] The fine material trough 243 is a funnel-shaped structure located below the magnetic screen 215. The finer materials screened out from the magnetic screen 215 enter the fine material trough 243 and are recycled. Construction waste (concrete) is screened through the material leakage gap 21521 of the magnetic screen 215, and the finer waste falls directly into the fine material trough 243 and is collected.

[0066] The rebar collection trough 244 is fixed to the rear of the base 22 and is located behind the magnetic screen 215. A baffle 2441 is provided between the rebar collection trough 244 and the fine material trough 243. When the magnetic screen 215 rotates clockwise to the rear of the base 22, the magnetic screen 215 disengages from the magnetic adsorption window 2121 and the magnet block 23. At this time, the magnetism of the magnetic screen 215 disappears, and the rebar adsorbed on the magnetic screen 215 is sent into the rebar collection trough 244 and collected.

[0067] The material distribution component 24 is a reasonable component that uses the circular motion of the magnetic screen 215 and the positional relationship between the movement trajectory of the magnetic screen 215 and the magnetic adsorption window 2121 to ensure that the steel bar collection trough 244 can collect most of the steel bars on the magnetic screen 215 when the magnetism disappears.

[0068] See Figure 8 The coarse aggregate trough 241 includes:

[0069] The material discharge chute 2411 has a "U" shaped cross-section. The material discharge chute 2411 is fixed to the right side of the base 22 and is located to the right of the magnetic screen 215. Preferably, the material discharge chute 24111 is provided with an inclined surface 24111 at the left corner of the bottom of the material discharge chute 2411. Large-volume construction waste separated from the magnetic screen 215 enters the material discharge chute 2411 to the right along the inclined direction of the magnetic screen 215.

[0070] A buffer plate 2412 is provided on the left side of the upright plate 213. A notch 24121 is opened in the middle of the buffer plate 2412. The buffer plate 2412 is hinged to the upper part of the upright plate 213. A rotating shaft 214 is inclined downward and passes through the notch 24121. The rotating shaft 214 is rotatably connected to the upright plate 213.

[0071] A buffer spring 2413 is fixed between the buffer plate 2412 and the upright plate 213. One end of the buffer spring 2413 is fixedly connected to the upright plate 213, and the other end of the buffer spring 2413 is fixedly connected to the buffer plate 2412. When a large volume of construction waste impacts the buffer plate 2412, the buffer plate 2412 can reduce the impact force of the construction waste under the action of the buffer spring 2413, so that the construction waste can fall smoothly into the material drop chute 2411.

[0072] The preferred vertical plate 213 has a discharge port 2131 at the bottom for discharging construction waste from the material chute 2411.

[0073] Working principle: The crushed construction waste enters the feed hopper 12 via the conveyor 1, and then enters the magnetic screening section 2. The construction waste impacts the magnetic screen 215, causing the magnetic screen 215 to rotate clockwise. At the same time, large-volume construction waste flows along the magnetic screen 215 and the rotating shaft 214 to the right into the coarse aggregate trough 241, while finer construction waste flows down through the leakage gap 21521 into the fine aggregate trough 243. As the magnetic screen 215 rotates, it passes to the right through the magnetic adsorption window 2121, and the magnetic conduction protrusion 2153 interacts with the magnetic... When the iron block 23 contacts the surface, the magnet 23 conducts magnetism to the magnetic screen 215. The magnetic screen 215 generates magnetic force and attracts the steel bars in the construction waste. As the magnetic screen 215 rotates, it gradually tilts downwards. The magnetic screen 215 sends the coarser construction waste to the coarser collection plate 242. Then, as the magnetic screen 215 continues to rotate counterclockwise, it moves to the rear of the base 22 and gradually separates from the magnetic adsorption window 2121 and the magnet 23. At this time, the steel bars separate from the magnetic screen 215 and fall into the steel bar collection trough 244.

[0074] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship of the device or equipment during normal use, and do not 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 limiting the invention in this respect.

[0075] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. An environmentally friendly waste treatment device for highway construction, characterized in that, include: Conveyor; The magnetic screening unit is a rotatable structure fixed to the lower front end of the conveyor. The construction waste output from the conveyor drives the magnetic screening unit to rotate. During rotation, the magnetic screening unit completes the screening of construction waste of different volumes, as well as the screening of metal waste and concrete waste. The magnetic screening section includes: The screening component, located below the conveyor outlet, is a rotatable structure. The base is connected to the screening component, with the main body of the screening component located in the middle of the base. The screening component can rotate relative to the base. The magnet block is located on one side of the base, facing the screening component. The screening component can rotate relative to the magnet block, and as the screening component rotates, the magnet block can come into contact with the screening component. The material separating component is located below the screening component; A feeding hopper is provided at the front outlet of the conveyor. The upper opening area of ​​the feeding hopper is larger than the lower opening area. The feeding hopper is fixedly connected to one side of the magnetic screening section. The screening component includes: The inclined plate is a rectangular plate-shaped structure that is fixed at an angle to the base. The upright plate is a rectangular plate structure that is vertically and fixedly connected to the base, while the inclined plate is set at an angle relative to the upright plate. The pivot is located between the inclined plate and the vertical plate. The pivot is inclined relative to the base. The height of the pivot near the inclined plate is greater than the height of the pivot near the vertical plate. One side of the pivot is rotatably connected to the inside of the inclined plate, and the other side of the pivot is rotatably connected to the inside of the vertical plate. A magnetic screen is fixed on the outer surface of a rotating shaft. The rotating shaft drives the magnetic screen to rotate clockwise. There are several magnetic screens, which are evenly distributed on the rotating shaft. The magnetic screens are tilted to the right relative to the base. A magnetic adsorption window is opened through the inclined plate, and the center of the magnetic adsorption window coincides with the center of the rotating shaft on the inclined plate. The magnetic adsorption window is located on the front side of the inclined plate. The magnetic sieve includes: The frame is shaped like a "Π" and its main body is made of iron. One side of the frame is fixedly connected to the outer surface of the pivot, while the other side of the frame faces outward. The adsorption rod is a cylindrical structure, and its main body is made of iron. The adsorption rod is located inside the frame. One end of the adsorption rod is fixedly connected to one side of the frame, and the other end of the adsorption rod is fixedly connected to the other side of the frame. There are several adsorption rods, which are evenly distributed along the width of the frame, and a material leakage gap is formed between adjacent adsorption rods. The magnetic conduction protrusions are block-shaped structures with a "∩" cross-section. They are fixed to the left edge of the frame. The magnetic conduction protrusions extend beyond the left edge of the frame and are evenly distributed along the width of the frame.

2. The environmental protection treatment device for waste from highway construction according to claim 1, characterized in that, The material distribution component includes: The coarse aggregate trough is connected to the vertical plate and the base, and the main body of the coarse aggregate trough is located on the right side of the magnetic screen. The secondary coarse aggregate plate is located on the front side of the base and extends towards the front side of the base. The fine material trough is a funnel-shaped structure located below the magnetic screen. The finer materials screened out by the magnetic screen enter the fine material trough and are recycled. The steel reinforcement collection trough is fixed to the rear of the base and is located behind the magnetic screen. A baffle is installed between the steel reinforcement collection trough and the fine material trough.

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