A water floating and washing system for recycled aggregate of construction waste

Abstract

The present invention discloses a water flotation washing system for recycled aggregate of construction waste, which relates to the technical field of building material production equipment and includes a frame. A flotation machine device and a hydrocyclone are arranged in parallel on the frame. The flotation machine device includes a flotation tank arranged on the frame. An inclined chain plate conveyor belt is arranged in the flotation tank. One end of the chain plate conveyor belt far from the hydrocyclone is provided with a feed trough. An aggregate collection plate and a mobile vibrator are sequentially arranged in the chain plate conveyor belt from top to bottom. A plurality of U-shaped push plates adapted to the position of the mobile vibrator are arranged at intervals along the conveying direction on the inner wall of the chain plate conveyor belt. The aggregate collection plate is connected to the hydrocyclone. The present invention has the advantages of improving the separation effect of light substances and aggregates and improving the quality of recycled construction waste aggregates, etc.

Description

Technical Field

[0001] The present invention relates to the technical field of building material production equipment, and particularly relates to a water floating and washing system for recycled aggregates of construction waste. Background Art

[0002] Construction waste is a multi-component mixture. In addition to inorganic hard components such as waste concrete and waste bricks and tiles, it also contains components such as waste wood, waste asphalt, waste metal, and waste plastic. Construction waste must be effectively separated into each component and then utilized respectively to achieve the resource treatment of construction waste. Aggregate is a granular material that plays a role in the framework and filling in concrete and mortar. A large amount of recycled aggregate is contained in construction waste and can be recycled.

[0003] Currently, the existing water floating and washing device for recycled aggregates of construction waste uses a flotation machine to separate small-sized light substances and aggregates, making the small-sized light substances float and the aggregates sink for separation; then the aggregates collected by sinking are subjected to shaping and crushing, screening, and sand washing and recycling. However, the existing water floating and washing device for recycled aggregates of construction waste still has the following disadvantages: After adding the mixture of small-sized light substances and aggregates before water floating and washing, it is not easy to separate, resulting in the small-sized light substances being easily adhered to the aggregates and sinking together with the aggregates, leading to incomplete separation of the small-sized light substances and the aggregates, ultimately causing the small-sized light substances and the aggregates to be mixed, reducing the quality of recycled construction waste aggregates, and at the same time affecting production efficiency.

[0004] Therefore, doing a good job in separating the mixture of small-sized light substances and aggregates is a key technical link in the quality of recycled construction waste aggregates. Summary of the Invention

[0005] Aiming at the above-mentioned existing technical deficiencies, the technical problem to be solved by the present invention is to provide a water floating and washing system for recycled aggregates of construction waste that improves the separation effect of light substances and aggregates and improves the quality of recycled construction waste aggregates.

[0006] To solve the above technical problem, the present invention provides a water floating and washing system for recycled aggregates of construction waste, including a frame. A flotation machine device and a hydrocyclone are arranged in parallel on the frame. The flotation machine device includes a flotation tank arranged on the frame. A chain plate conveyor belt is inclined in the flotation tank. One end of the chain plate conveyor belt far from the hydrocyclone is provided with a feed tank. An aggregate collection plate and a moving vibrator are sequentially arranged from top to bottom inside the chain plate conveyor belt. A plurality of U-shaped push plates adapted to the position of the moving vibrator are arranged at intervals along the conveying direction on the inner wall of the chain plate conveyor belt. The aggregate collection plate is connected to the hydrocyclone.

[0007] Preferably, the feed chute includes a chute body disposed at one end of the frame away from the hydrocyclone. A feed port is provided on a side wall of the chute body facing the chain plate conveyor belt. First guide plates and second guide plates are spacedly arranged on the bottom surface inside the chute body. The lower end of the first guide plate is connected to the upper end of the second guide plate through a horizontal plate. The lower end of the second guide plate is located above the end of the chain plate conveyor belt close to the feed chute. The feed port is directly above the connection between the horizontal plate and the second guide plate. An adjusting plate is movably inserted into the feed port. Rotating motors are embedded in the opposite side walls of the feed port. A limiting plate is fixedly provided on the output shaft of the rotating motor. The two limiting plates are distributed in a shape of an inverted V. The large end opening of the inverted V of the limiting plate faces the feed port, and the small end opening of the inverted V of the limiting plate faces the chain plate conveyor belt, facilitating the sequential passage through the first guide plate and the second guide plate during feeding, improving the uniformity of feeding, and being beneficial to the separation between small-sized light substances and aggregates. The opening and closing of different positions between the two limiting plates can also be realized by driving the limiting plates with the rotating motors, so as to adjust and control the feeding amount.

[0008] Preferably, the chain plate conveyor belt includes a number of chain plates connected end to end in sequence. The chain plates are all located inside the flotation tank. Adjacent two chain plates are movably connected through an adjusting shaft. The chain plate is of a three-section structure, including a middle plate at the middle position, side plates one and two respectively located at both ends of the middle plate. The middle plate, side plate one and side plate two are integrally formed structures. The middle plate is of a mesh structure, and the side plates one and two are solid plate structures. Baffles are provided at the connection positions between the side plate one and the middle plate and between the side plate two and the middle plate. The small end opening of the inverted V of the limiting plate is located between the two baffles, and the small end opening of the inverted V of the limiting plate corresponds to the position of the middle plate, facilitating the mixture of small-sized light substances and aggregates to fall onto the middle plate through the small end opening of the inverted V of the limiting plate.

[0009] Preferably, the mobile vibrator includes a flat conveyor chain disposed inside the chain plate conveyor belt. A plurality of vibration components are arranged at intervals along the conveying direction on the flat conveyor chain. The vibration component includes an underwater cylinder fixedly arranged on the flat conveyor chain. A lifting rod is arranged on the piston rod of the underwater cylinder. A left support and a right support are arranged at intervals along the width direction on the flat conveyor chain. Both the left support and the right support are movably inserted into the flat conveyor chain through return springs, and the left support and the right support are respectively located on both sides of the underwater cylinder. One end of the left support away from the flat conveyor chain and one end of the right support away from the flat conveyor chain are both hinged with a vibrating rod through a rotating shaft with a torsion spring. U-shaped push plates are fixedly arranged on one side of the first side plate close to the flat conveyor chain and one side of the second side plate close to the flat conveyor chain, and the vibrating rods are respectively located inside the U-shaped openings of the U-shaped push plates on the first side plate or inside the U-shaped openings of the U-shaped push plates on the second side plate. A cross bar parallel to the lifting rod is fixedly arranged between the left support and the right support. The cross bar abuts against the lifting rod. The cross bar is of a cylindrical rod structure. One end of the lifting rod close to the lifting rod is provided with a semi-circular groove adapted to the diameter of the cross bar. The cross bar is rotatably arranged in the semi-circular groove. According to needs, by starting the flat conveyor chain to move the vibration component to the position of the intermediate plate at the corresponding position, the underwater cylinder can drive the left support and the right support to make reciprocating movements, so that the intermediate plate can be lifted by the vibrating rod to achieve oscillation, which is beneficial to the separation of small-sized light substances and aggregates on the intermediate plate; the cross bar is of a cylindrical rod structure. One end of the lifting rod close to the lifting rod is provided with a semi-circular groove adapted to the diameter of the cross bar. The cross bar is rotatably arranged in the semi-circular groove, which is convenient for the lifting rod to push the cross bar, and finally the intermediate plate can be lifted by the vibrating rod to achieve oscillation.

[0010] Preferably, a crushing rod assembly is movably arranged directly above the chain plate conveyor belt. The crushing rod assembly includes mounting grooves respectively arranged on two opposite inner walls of the flotation tank. An installation plate is slidably arranged between the mounting grooves. A plurality of annular mounting seats are arranged in an array on the side of the installation plate facing the chain plate conveyor belt. A punching rod is movably connected in the annular mounting seat through a buffer spring. The punching rod is perpendicular to the conveying direction of the chain plate conveyor belt. A crushing ball head is arranged at one end of the punching rod away from the buffer spring. The crushing rod assembly can cooperate with the vibration component, which is beneficial to crushing the mixture of small-sized light substances and aggregates, avoiding or reducing the caking of the mixture of small-sized light substances and aggregates, so as not to affect the separation of small-sized light substances and aggregates.

[0011] Preferably, the adjusting shaft includes an elastic arc connecting plate. The arc-shaped two ends of the elastic arc connecting plate are respectively connected to the connections between adjacent two link plates. An intermediate rod is arranged inside the arc opening of the elastic arc connecting plate. The two ends of the intermediate rod in the length direction correspond to the positions of two vibrating rods up and down. The intermediate rod is connected to one of the adjacent two link plates through a number of connecting plates I arranged along the length direction. Two fixing seats are connected to the other one of the adjacent two link plates through connecting plates II. Waist-shaped through grooves are arranged inside the fixing seats, and the two fixing seats are respectively located at the two ends of the intermediate rod in the length direction. The two ends of the intermediate rod in the length direction are respectively inserted into the waist-shaped through grooves at the corresponding positions in a movable manner. When the intermediate plate is jacked up by the vibrating rod to achieve oscillation, the two ends of the intermediate rod can reciprocate up and down in the two waist-shaped through grooves respectively, so as to achieve the effect of oscillating the intermediate plate; the setting of the elastic arc connecting plate is convenient for preventing small-sized light objects and aggregates from falling from the connection between adjacent two link plates.

[0012] Preferably, the aggregate collecting plate is a trough-shaped structure with an open top surface. The open top surface of the aggregate collecting plate faces the intermediate plate. The aggregate collecting plate is connected to the feed pipe of the hydrocyclone through an aggregate conveying pump, which is convenient for the aggregates passing through the intermediate plate to fall onto the aggregate collecting plate for collection, and further realizes the separation of small-sized light objects and aggregates.

[0013] Preferably, a cleaning rod is movably inserted on the side wall of the vibrating rod. A brush is arranged at one end of the cleaning rod close to the intermediate plate. The brush movably penetrates into the sieve holes on the intermediate plate. The aggregate collecting plate is located between the cleaning rod and the cross bar, which is convenient for installing the cleaning rod as needed. The sieve holes on the intermediate plate can be cleaned by the brush, reducing the blockage of the sieve holes.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The present invention can effectively improve the separation effect between small-sized light objects and aggregates, and improve the quality and production efficiency of recycled construction waste aggregates.

[0016] 2. By arranging a mobile vibrator inside the chain plate conveyor belt, the mobile vibrator moves under the drive of the flat conveyor chain, and finally the intermediate plate is oscillated through the mobile vibrator, which is convenient for the complete separation of small-sized light objects and aggregates when they are conveyed by the chain plate conveyor belt, improving the quality and production efficiency of recycled construction waste aggregates.

[0017] 3. As the chain plate conveyor belt moves, the brush on the arranged cleaning rod can clean the sieve holes on the intermediate plate, so as to reduce or avoid the blockage of the sieve holes, which is beneficial to the screening and collection of aggregates through the intermediate plate.

[0018] 4. The setting of the hydrocyclone facilitates the reduction of the moisture content in the aggregate, which is conducive to the stacking and use of the aggregate in the later stage, and improves the quality of the aggregate.

[0019] 5. The cooperation between the crushing rod assembly and the mobile vibrator facilitates the crushing of the mixture of small-sized light substances and aggregates with caking phenomena on the intermediate plate through the crushing ball head, which is conducive to the separation between small-sized light substances and aggregates and improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic structural diagram of a water flotation washing system for construction waste recycled aggregate provided by an embodiment of the present invention.

[0022] Figure 2 It is a schematic diagram of the installation groove position of a water flotation washing system for construction waste recycled aggregate provided by an embodiment of the present invention.

[0023] Figure 3 It is a schematic structural diagram of a chain plate conveyor belt of a water flotation washing system for construction waste recycled aggregate provided by an embodiment of the present invention.

[0024] Figure 4 It is a schematic diagram of the position of a flat conveyor chain of a water flotation washing system for construction waste recycled aggregate provided by an embodiment of the present invention.

[0025] Figure 5 It is a schematic diagram of the position between the aggregate collection plate and the flat conveyor chain of a water flotation washing system for construction waste recycled aggregate provided by an embodiment of the present invention.

[0026] Figure 6 It is a schematic diagram of the position between the aggregate collection plate and the vibration assembly of a water flotation washing system for construction waste recycled aggregate provided by an embodiment of the present invention.

[0027] Figure 7 It is a schematic structural diagram of the vibration assembly of a water flotation washing system for construction waste recycled aggregate provided by an embodiment of the present invention.

[0028] Figure 8 It is a schematic structural diagram of the adjusting shaft of a water flotation washing system for construction waste recycled aggregate provided by an embodiment of the present invention.

[0029] Figure 9Schematic diagram of the fixed seat structure of a water flotation washing system for recycled aggregate of construction waste provided by an embodiment of the present invention.

[0030] Figure 10 Schematic diagram of the crushing rod assembly structure of a water flotation washing system for recycled aggregate of construction waste provided by an embodiment of the present invention.

[0031] Figure 11 Schematic diagram of the position of the buffer spring of a water flotation washing system for recycled aggregate of construction waste provided by an embodiment of the present invention.

[0032] Description of reference numerals: 1, frame; 2, flotation machine device; 21, flotation tank; 211, feed tank; 2111, tank body; 2112, feed port; 2113, first guide plate; 2114, second guide plate; 2115, horizontal plate; 2116, adjusting plate; 2117, rotating motor; 2118, limiting plate; 22, chain plate conveyor belt; 221, chain plate; 2211, intermediate plate; 2212, first side plate; 2213, second side plate; 222, baffle; 3, hydrocyclone; 4, mobile vibrator; 41, flat conveyor chain; 411, left support; 412, right support; 413, rotating shaft with torsion spring; 414, vibrating rod; 415, cross bar; 42, vibration assembly; 421, underwater cylinder; 422, lifting rod; 4221, semi-circular groove; 5, U-shaped push plate; 6, adjusting shaft; 61, elastic arc connecting plate; 62, intermediate rod; 621, first connecting plate; 63, fixed seat; 631, second connecting plate; 64, waist-shaped through groove; 7, aggregate collection plate; 8, cleaning rod; 9, crushing rod assembly; 91, installation groove; 92, installation plate; 93, annular installation seat; 94, buffer spring; 95, punching rod; 96, crushing ball head. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Embodiment 1: As Figures 1 to 6As shown in the figure, the present invention provides a water flotation washing system for recycled construction waste aggregates, which includes a frame 1. A flotation machine device 2 and a hydrocyclone 3 are arranged in parallel on the frame 1. The flotation machine device 2 includes a flotation tank 21 arranged on the frame 1. An endless chain conveyor belt 22 is inclined in the flotation tank 21. One end of the endless chain conveyor belt 22 far from the hydrocyclone 3 is provided with a feed trough 211. An aggregate collection plate 7 and a mobile vibrator 4 are arranged in sequence from top to bottom inside the endless chain conveyor belt 22. A plurality of U-shaped push plates 5 adapted to the position of the mobile vibrator 4 are arranged at intervals along the conveying direction on the inner wall of the endless chain conveyor belt 22. The aggregate collection plate 7 is connected to the hydrocyclone 3. First, the mixture of small-sized light substances and aggregates is added through the feed trough 211 and then falls onto the endless chain conveyor belt 22 in the flotation tank 21. Under the action of the buoyancy and impact force of the water flow in the flotation tank 21, the separation of small-sized light substances and aggregates is realized, that is, the small-sized light substances float in the flotation tank 21 (and can be collected later). The aggregates on the endless chain conveyor belt 22 enter into the aggregate collection plate 7 under the action of the mobile vibrator 4 and the U-shaped push plates 5, and then enter into the hydrocyclone 3 for dehydration operation. The mobile vibrator 4 can oscillate different positions of the endless chain conveyor belt 22 as needed, which is beneficial to more thorough separation between small-sized light substances and aggregates and convenient for collecting aggregates.

[0035] Embodiment 2: On the basis of Embodiment 1, as Figures 1 to 8As shown, the feed trough 211 includes a trough body 2111 disposed at one end of the frame 1 away from the hydrocyclone 3, a material port 2112 is disposed on one side wall of the trough body 2111 facing the chain conveyor belt 22, a first material guide plate 2113 and a second material guide plate 2114 are disposed on the bottom surface of the trough body 2111, and a lower end of the first material guide plate 2113 and a higher end of the second material guide plate 2114 are connected by a horizontal plate 2115, and the second material guide plate 2114 is connected to the lower end of the first material guide plate 2113 and the higher end of the second material guide plate 2114. The lower end of the plate 2114 is located above the end of the chain conveyor belt 22 close to the feed trough 211, the material port 2112 is located directly above the connection between the horizontal plate 2115 and the second material guide plate 2114, an adjustment plate 2116 is movably inserted in the material port 2112, and a rotating motor 2117 is also embedded in the opposite side walls of the material port 2112. A limit plate 2118 is fixedly provided on the output shaft of the rotating motor 2117, and the two limit plates 2118 are in an "eight" shape. shaped distribution, the eight-shaped large end opening of the limiting plate 2118 faces the material port 2112, and the eight-shaped small end opening of the limiting plate 2118 faces the chain plate conveyor belt 22; when feeding, the mixture of small-sized lightweight objects and aggregates is added into the material trough body 2111 and then falls onto the first guide plate 2113, and then passes through the horizontal plate 2115 and the second guide plate 2114 in sequence through the material port 2112 and falls onto the chain plate conveyor belt 22, thereby improving the uniformity of feeding the mixture of small-sized lightweight objects and aggregates and facilitating the separation of small-sized lightweight objects from aggregates; the position of the adjusting plate 2116 can be movably adjusted in the material port 2112, so as to adjust the size of the opening and closing of the material port 2112, and the discharge amount of the mixture of small-sized lightweight objects and aggregates can be adjusted according to needs; the limiting plate 2118 can also be driven by the rotating motor 2117 to realize the opening and closing of different positions between the two limiting plates 2118, so as to adjust and control the feeding amount.

[0036] Embodiment 3: Based on Embodiment 1, Figures 1 to 9As shown, the chain plate conveyor belt 22 includes a number of chain plates 221 connected end to end in sequence. The chain plates 221 are all located within the flotation tank 21. Adjacent two chain plates 221 are movably connected by an adjusting shaft 6. The chain plate 221 is of a three-section structure, including an intermediate plate 2211 at the middle position, a first side plate 2212 and a second side plate 2213 respectively located at both ends of the intermediate plate 2211. The intermediate plate 2211, the first side plate 2212 and the second side plate 2213 are of an integrally formed structure, and the intermediate plate 2211 is of a mesh structure, while the first side plate 2212 and the second side plate 2213 are of a solid plate structure. Baffles 222 are provided at the positions where the first side plate 2212 is connected to the intermediate plate 2211 and where the second side plate 2213 is connected to the intermediate plate 2211. The small end opening of the inverted V-shaped limiting plate 2118 is located between the two baffles 222, and the small end opening of the inverted V-shaped limiting plate 2118 corresponds to the position of the intermediate plate 2211; The mobile vibrator 4 includes a flat conveyor chain 41 arranged inside the chain plate conveyor belt 22. A plurality of vibration assemblies 42 are arranged side by side at intervals along the conveying direction on the flat conveyor chain 41. The vibration assembly 42 includes a submersible cylinder 421 fixedly arranged on the flat conveyor chain 41. A lifting rod 422 is arranged on the piston rod of the submersible cylinder 421. A left support 411 and a right support 412 are arranged at intervals along the width direction on the flat conveyor chain 41. Both the left support 411 and the right support 412 are movably inserted on the flat conveyor chain 41 through return springs, and the left support 411 and the right support 412 are respectively located on both sides of the submersible cylinder 421. One end of the left support 411 away from the flat conveyor chain 41 and one end of the right support 412 away from the flat conveyor chain 41 are respectively hinged with a vibrating rod 414 through a rotating shaft 413 with a torsion spring. U-shaped push plates 5 are fixedly arranged on one side of the first side plate 2212 close to the flat conveyor chain 41 and one side of the second side plate 2213 close to the flat conveyor chain 41, and the vibrating rods 414 are respectively located within the U-shaped openings of the U-shaped push plates 5 on the first side plate 2212 or within the U-shaped openings of the U-shaped push plates 5 on the second side plate 2213. A cross bar 415 parallel to the lifting rod 422 is fixedly arranged between the left support 411 and the right support 412. The cross bar 415 abuts against the lifting rod 422. The cross bar 415 is of a cylindrical rod structure. A semi-circular groove 4221 adapted to the diameter of the cross bar 415 is arranged at one end of the lifting rod 422 close to the lifting rod 422. The cross bar 415 is rotatably arranged within the semi-circular groove 4221;The adjusting shaft 6 includes an elastic arc connecting plate 61. The arc-shaped two ends of the elastic arc connecting plate 61 are respectively connected to the connections between two adjacent link plates 221. An intermediate rod 62 is arranged inside the arc-shaped opening of the elastic arc connecting plate 61. The two ends in the length direction of the intermediate rod 62 correspond to the positions of two vibrating rods 414 up and down. The intermediate rod 62 is connected to one of the two adjacent link plates 221 through a number of connecting plates one 621 arranged along the length direction. Two fixing seats 63 are connected to the other link plate 221 among the two adjacent link plates 221 through connecting plates two 631. Waist-shaped through grooves 64 are arranged inside the fixing seats 63. And the two fixing seats 63 are respectively located at the two ends in the length direction of the intermediate rod 62. The two ends in the length direction of the intermediate rod 62 are respectively inserted into the waist-shaped through grooves 64 at the corresponding positions movably.;

[0037] During operation, the mixture of small-sized light objects and aggregates falls onto the intermediate plate 2211 (the intermediate plate 2211 at one end of the link plate conveyor belt 22 close to the screw conveyor mixer 23) through the feed chute 211. Since the intermediate plate 2211 is of a sieve-like structure, the aggregates can pass through the intermediate plate 2211 and fall into the flotation tank 21 (as the link plate conveyor belt 22 rotates, the aggregates on the intermediate plate 2211 continuously fall into the flotation tank 21. Baffles 222 arranged at the connection positions between the first side plate 2212 and the intermediate plate 2211 and between the second side plate 2213 and the intermediate plate 2211 can prevent the aggregates from falling outside the intermediate plate 2211); meanwhile, there is water flow in the flotation tank 21. Under the simultaneous action of the buoyancy and impact force of the water flow, it is convenient to separate the small-sized light objects from the aggregates.

[0038] When it is not easy to separate the mixture of small-sized light objects and aggregates on the link plate 221 at a certain position of the link plate conveyor belt 22, the flat plate conveyor chain 41 can be started to drive the vibration assembly 42 to move to the corresponding position (or the rotation speeds of the link plate conveyor belt 22 and the flat plate conveyor chain 41 can be made the same, so that the mixture of small-sized light objects and aggregates can be shaken and separated while being conveyed).

[0039] There may be two vibration assemblies 42, and the two vibration assemblies 42 are respectively located at both ends of the same chain plate 221. When the vibration assemblies 42 are needed, it is convenient for the underwater cylinders 421 in the two vibration assemblies 42 to drive the lifting rods 422 to move simultaneously. That is, according to the need, the vibration assemblies 42 are moved to the position of the intermediate plate 2211 at the corresponding position by starting the flat conveyor chain 41. The underwater cylinders 421 drive the left bracket 411 and the right bracket 412 to move reciprocally (simultaneously making the left bracket 411 and the right bracket 412 move reciprocally on the flat conveyor chain 41), so that the intermediate plate 2211 can be lifted by the vibration rod 414 to achieve oscillation, which is beneficial to the separation of small-sized lightweight objects and aggregates on the intermediate plate 2211; when the intermediate plate 2211 is lifted by the vibration rod 414 to achieve oscillation (that is, the vibration rod 414 intermittently lifts the adjusting shaft 6 at the corresponding position, and then the chain plate 221 can be oscillated up and down), at this time, both ends of the intermediate rod 62 can reciprocally move up and down in the two kidney-shaped through grooves 64 respectively, so as to achieve the effect of oscillating the intermediate plate 2211, and at the same time, the influence on other adjacent intermediate plates 2211 can be avoided or reduced; the setting of the elastic arc-shaped connecting plate 61 is convenient for preventing small-sized lightweight objects and aggregates from falling from the connection between two adjacent chain plates 221.

[0040] When the vibration assemblies 42 are not needed, since U-shaped push plates 5 are provided on both the first side plate 2212 and the second side plate 2213, when the chain plate conveyor belt 22 rotates, when the U-shaped push plate 5 abuts against the vibration rod 414 (the vibration rod 414 is located in the U-shaped opening of the U-shaped push plate 5 on the first side plate 2212 or the second side plate 2213), as the chain plate conveyor belt 22 continues to rotate, the vibration rod 414 can rotate with the shaft 413 with a torsion spring as the axis, so as to ensure that there is no interference between the vibration rod 414 and the U-shaped push plate 5 when the chain plate conveyor belt 22 rotates.

[0041] The cross bar 415 is of a cylindrical rod structure. One end of the lifting rod 422 close to the lifting rod 422 is provided with a semi-circular groove 4221 adapted to the diameter of the cross bar 415. The cross bar 415 is rotatably arranged in the semi-circular groove 4221, which is convenient for the lifting rod 422 to push the cross bar 415, and finally the intermediate plate 2211 can be lifted by the vibration rod 414 to achieve oscillation.

[0042] The vibration rods 414 at the ends of the left bracket 411 far from the flat conveyor chain 41 and the vibration rods 414 at the ends of the right bracket 412 far from the flat conveyor chain 41 are both adapted to the position of the intermediate rod 62. When the intermediate plate 2211 is lifted by the vibration rod 414 to achieve oscillation, the vibration rod 414 can achieve the oscillation effect on the intermediate plate 2211 by lifting the intermediate rod 62.

[0043] Example 4: On the basis of Example 1, asFigures 1 to 5 , Figures 10 to 11 As shown in Figures 10 to 11 , a crushing rod assembly 9 is movably arranged directly above the chain plate conveyor belt 22. The crushing rod assembly 9 includes mounting grooves 91 respectively arranged on two opposite inner walls of the flotation tank 21. An installation plate 92 is slidably arranged between the mounting grooves 91. A number of annular mounting seats 93 are arranged in an array on the side of the installation plate 92 facing the chain plate conveyor belt 22. A punching rod 95 is movably connected to the inside of the annular mounting seat 93 through a buffer spring 94. The punching rod 95 is perpendicular to the conveying direction of the chain plate conveyor belt 22. A crushing ball head 96 is arranged at one end of the punching rod 95 away from the buffer spring 94. The crushing rod assembly 9 can cooperate with the vibration assembly 42. That is, when the underwater cylinder 421 is started to drive the left support 411 and the right support 412 to move reciprocally (simultaneously causing the left support 411 and the right support 412 to move reciprocally on the flat conveyor chain 41), and the intermediate plate 2211 is jacked up by the vibration rod 414 to achieve oscillation, the mixture of small-sized light substances and aggregates on the intermediate plate 2211 can be squeezed with the crushing ball head 96 (at this time, the crushing ball head 96 can squeeze the buffer spring 94, and at the same time, the punching rod 95 moves inside the annular mounting seat 93), so as to crush the mixture of small-sized light substances and aggregates that shows caking phenomenon, which is conducive to the separation between small-sized light substances and aggregates.

[0044] Example 5: On the basis of Example 1, as Figures 1 to 3 , Figure 5 shown, the aggregate collecting plate 7 is a trough-shaped structure with an open top surface. The open top surface of the aggregate collecting plate 7 faces the intermediate plate 2211. The aggregate collecting plate 7 is connected to the feed pipe of the hydrocyclone 3 through an aggregate conveying pump; it is convenient for the aggregates passing through the intermediate plate 2211 to fall into the U-shaped opening of the aggregate collecting plate 7 for collection, so as to realize the separation between small-sized light substances and aggregates; the aggregates collected in the aggregate collecting plate 7 can enter the feed pipe on the hydrocyclone 3 under the action of the aggregate conveying pump and enter the hydrocyclone 3 to complete the dehydration operation.

[0045] Example 6: On the basis of Example 1, as Figures 1 to 2 , Figures 5 to 7As shown in the figure, a cleaning rod 8 is movably inserted on the side wall of the vibrating rod 414. A brush is provided at one end of the cleaning rod 8 close to the middle plate 2211. The brush movably penetrates into the sieve holes on the middle plate 2211. The aggregate collection plate 7 is located between the cleaning rod 8 and the cross bar 415. When the sieve holes on the middle plate 2211 are blocked, the cleaning rod 8 can be first installed between the side walls of the two vibrating rods 414. At this time, the brush at one end of the cleaning rod 8 close to the middle plate 2211 can movably penetrate into the sieve holes on the middle plate 2211. As the chain plate conveyor belt 22 moves, the brush can clean the sieve holes on the middle plate 2211, so as to reduce or avoid the blockage of the sieve holes, which is beneficial to the screening and collection of aggregates through the middle plate 2211. The aggregate collection plate 7 is located between the cleaning rod 8 and the cross bar 415, which is convenient for the cross bar 415 not to interfere with the aggregate collection plate 7 when the vibrating assembly 42 is used to vibrate the middle plate 2211.

[0046] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water flotation washing system for recycled aggregate of construction waste, characterized in that, it includes a frame (1), on which a flotation machine device (2) and a hydrocyclone (3) are arranged in parallel. The flotation machine device (2) includes a flotation tank (21) arranged on the frame (1). An endless chain conveyor belt (22) is inclined in the flotation tank (21). One end of the endless chain conveyor belt (22) far from the hydrocyclone (3) is provided with a feed trough (211). Inside the endless chain conveyor belt (22), an aggregate collection plate (7) and a mobile vibrator (4) are arranged in sequence from top to bottom. Along the conveying direction, a plurality of U-shaped push plates (5) adapted to the position of the mobile vibrator (4) are arranged at intervals on the inner wall of the endless chain conveyor belt (22). The aggregate collection plate (7) is connected to the hydrocyclone (3); The feed trough (211) includes a trough body (2111) arranged at one end of the frame (1) far from the hydrocyclone (3). A feed port (2112) is arranged on a side wall of the trough body (2111) facing the endless chain conveyor belt (22). On the bottom surface inside the trough body (2111), a first guide plate (2113) and a second guide plate (2114) are arranged at intervals. The lower end of the first guide plate (2113) and the upper end of the second guide plate (2114) are connected by a horizontal plate (2115). The lower end of the second guide plate (2114) is located above one end of the endless chain conveyor belt (22) close to the feed trough (211). The feed port (2112) is located directly above the connection of the horizontal plate (2115) and the second guide plate (2114). An adjusting plate (2116) is movably inserted into the feed port (2112). Rotating motors (2117) are embedded in the opposite side walls of the feed port (2112). A limiting plate (2118) is fixedly arranged on the output shaft of the rotating motor (2117). The two limiting plates (2118) are distributed in a shape of an eight. The large end opening of the eight-shaped limiting plate (2118) faces the feed port (2112), and the small end opening of the eight-shaped limiting plate (2118) faces the endless chain conveyor belt (22); The chain plate conveyor belt (22) comprises a number of chain plates (221) connected in sequence end to end. The chain plates (221) are all located inside the flotation tank (21). Adjacent two chain plates (221) are movably connected through an adjusting shaft (6). The chain plate (221) has a three-section structure, including an intermediate plate (2211) at the middle position, a first side plate (2212) and a second side plate (2213) respectively located at both ends of the intermediate plate (2211). The intermediate plate (2211), the first side plate (2212) and the second side plate (2213) are of an integrally formed structure. And the intermediate plate (2211) is of a screen-like structure, while the first side plate (2212) and the second side plate (2213) are of solid plate structures. Baffles (222) are arranged at the positions where the first side plate (2212) is connected to the intermediate plate (2211) and where the second side plate (2213) is connected to the intermediate plate (2211). The small-end opening of the inverted V-shaped limiting plate (2118) is located between the two baffles (222), and the small-end opening of the inverted V-shaped limiting plate (2118) corresponds to the position of the intermediate plate (2211). The mobile vibrator (4) comprises a flat conveyor chain (41) arranged inside the chain plate conveyor belt (22). A plurality of vibration assemblies (42) are arranged at intervals side by side along the conveying direction on the flat conveyor chain (41). The vibration assembly (42) includes an underwater cylinder (421) fixedly arranged on the flat conveyor chain (41). A lifting rod (422) is arranged on the piston rod of the underwater cylinder (421). A left support (411) and a right support (412) are arranged at intervals along the width direction on the flat conveyor chain (41). The left support (411) and the right support (412) are both movably inserted on the flat conveyor chain (41) through return springs, and the left support (411) and the right support (412) are respectively located on both sides of the underwater cylinder (421). The ends of the left support (411) away from the flat conveyor chain (41) and the ends of the right support (412) away from the flat conveyor chain (41) are both hinged with a vibration rod (414) through a rotating shaft (413) with a torsion spring. U-shaped push plates (5) are fixedly arranged on the side of the first side plate (2212) close to the flat conveyor chain (41) and on the side of the second side plate (2213) close to the flat conveyor chain (41). And the vibration rods (414) are respectively located inside the U-shaped openings of the U-shaped push plates (5) on the first side plate (2212) or inside the U-shaped openings of the U-shaped push plates (5) on the second side plate (2213). A cross bar (415) parallel to the lifting rod (422) is fixedly arranged between the left support (411) and the right support (412). The cross bar (415) abuts against the lifting rod (422). The cross bar (415) is of a cylindrical rod structure. A semi-circular groove (4221) adapted to the diameter of the cross bar (415) is arranged at one end of the lifting rod (422) close to the lifting rod (422). The cross bar (415) is rotatably arranged inside the semi-circular groove (4221).

2. A water flotation washing system for construction waste recycled aggregate as described in claim 1, characterized in that, Above the chain plate conveyor belt (22), a crushing rod assembly (9) is movably arranged. The crushing rod assembly (9) includes mounting grooves (91) respectively arranged on two opposite inner walls of the flotation tank (21). An installation plate (92) is slidably arranged between the mounting grooves (91). A plurality of annular mounting seats (93) are arranged in an array on the side of the installation plate (92) facing the chain plate conveyor belt (22). A punching rod (95) is movably connected in the annular mounting seat (93) through a buffer spring (94). The punching rod (95) is perpendicular to the conveying direction of the chain plate conveyor belt (22). A crushing ball head (96) is arranged at one end of the punching rod (95) away from the buffer spring (94).

3. The water flotation washing system for recycled construction waste aggregates as described in claim 1, characterized in that, The adjusting shaft (6) includes an elastic arc connecting plate (61). The arc-shaped two ends of the elastic arc connecting plate (61) are respectively connected between two adjacent chain plates (221). An intermediate rod (62) is arranged in the arc-shaped opening of the elastic arc connecting plate (61). The two ends of the intermediate rod (62) in the length direction are respectively corresponding to the positions of two vibrating rods (414) up and down. The intermediate rod (62) is connected to one of the two adjacent chain plates (221) through a plurality of connecting plates one (621) arranged along the length direction. Two fixing seats (63) are connected to the other one of the two adjacent chain plates (221) through a connecting plate two (631). Waist-shaped through grooves (64) are arranged in the fixing seats (63). And the two fixing seats (63) are respectively located at the two ends of the intermediate rod (62) in the length direction. The two ends of the intermediate rod (62) in the length direction are respectively movably inserted into the waist-shaped through grooves (64) at the corresponding positions.

4. The water flotation washing system for recycled construction waste aggregates as described in claim 1, characterized in that, The aggregate collection plate (7) is a trough-shaped structure with an open top surface. The open top surface of the aggregate collection plate (7) faces the intermediate plate (2211). The aggregate collection plate (7) is connected to the feed pipe of the hydrocyclone (3) through an aggregate conveying pump.

5. The water flotation washing system for recycled construction waste aggregates as described in claim 4, characterized in that, A cleaning rod (8) is movably inserted on the side wall of the vibrating rod (414). A brush is arranged at one end of the cleaning rod (8) close to the intermediate plate (2211). The brush movably penetrates into the sieve holes on the intermediate plate (2211). The aggregate collection plate (7) is located between the cleaning rod (8) and the cross bar (415).

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