Production system of construction waste regenerated admixture

Abstract

The invention relates to the technical field of construction waste treatment, in particular to a construction waste regenerated admixture production system which comprises a feeding platform, a sorting machine box and a metal scrap separating device, a wetting box is arranged at one end of the feeding platform, and a primary crushing box, a secondary crushing box and a transferring box are sequentially arranged below the wetting box; the sorting machine box is sequentially provided with a floating wood box, a golden stone box and a sediment box from top to bottom, a scrap collecting box is arranged on the inner side of the metal scrap separating device, and a separating air cylinder is arranged at the top of the metal scrap separating device. According to the construction waste classification device, construction waste can be classified under the condition that construction materials are not crushed into disintegrating slag, so that the production cost of the admixture is reduced, noise and flying dust generated in the production process of the admixture can be reduced, metal can be separated from wood, light metal can be separated from wood slag and collected, and the production efficiency is improved. And the subsequent wood admixture is prevented from being mixed with metal.

Description

Technical Field

[0001] The present application relates to the technical field of construction waste treatment, and in particular to a production system for construction waste recycled admixtures. Background Art

[0002] With the acceleration of urbanization, the annual output of construction waste has exceeded 2 billion tons, accounting for more than 40% of the total urban solid waste. Traditional landfill disposal methods occupy land and pollute the environment, so the recycling of construction waste has become the main research direction of construction waste treatment. The main materials that can be used as admixtures in construction waste are wood, metal and concrete stones, while most construction waste is large mixed materials, in which the wood, metal and concrete stones are mixed together and difficult to separate.

[0003] Most of the existing equipment for construction waste separation and processing crushes construction waste into powder. Wood materials are separated by air separation according to their density, while higher-quality materials such as metals and stones are separated by magnetic separators. When construction waste is used as an admixture, only wood needs to be crushed into small pieces for use as filler. When concrete and metal construction waste are used as admixtures, they are mostly in block form. When used as filler, the crushed concrete and metal construction waste need to be re-blocked, resulting in unnecessary waste. Moreover, when concrete and metal construction waste are crushed, the dust is too large, which will cause great pollution to the environment, and it needs to be crushed and cut multiple times before it can be turned into powder. Multiple crushing processes not only increase the processing cost, but also generate a lot of noise. If the wood is not thoroughly crushed, it will be difficult to separate the wood components through air separation or magnetic separation (the wood may be embedded with metal materials such as iron nails and aluminum sheets, which are difficult to separate through magnetic separation, and large pieces of wood are heavy, making air separation more difficult). The wood components mixed in concrete or metal will affect the effectiveness of concrete or metal as fillers.

[0004] Therefore, in order to solve the above-mentioned related technical problems, a production system for construction waste recycled admixture is proposed, which can separate the wood component therein by crushing the construction waste into small pieces. Summary of the Invention

[0005] In order to improve the above problems, the present application provides a production system for construction waste recycled admixtures.

[0006] The present application provides a production system for construction waste recycled admixtures, which adopts the following technical solutions: A production system for recycled admixture from construction waste, comprising a loading platform, a sorting machine box, and a metal debris separation device. A wetting box is provided at one end of the loading platform, and a primary crushing box, a secondary crushing box, and a transfer box are sequentially provided below the wetting box. The sorting machine box is connected to one end of the transfer box, and a driftwood box, a gold and stone box, and a sedimentation box are sequentially provided on the sorting machine box from top to bottom. Among them, the metal debris separation device is connected to the inner wall of the floating wooden box, a debris collection box is provided on the inside of the metal debris separation device, and a separation cylinder is provided on the top of the metal debris separation device, and a debris scraper is connected to the bottom of the separation cylinder. The metal debris separation device includes two sets of transmission chains and multiple sets of adsorption push plate assemblies.

[0007] Preferably, the driftwood box and the stone box are connected to each other, and a conveyor filter belt is provided between the stone box and the sedimentation box, the end of the driftwood box away from the transfer box is connected to the wood residue outlet, and the end of the stone box away from the transfer box is connected to the stone outlet.

[0008] Preferably, the conveyor filter belt is flush with the highest point of the metal stone outlet, a wood slag conveyor belt is provided above the end of the conveyor filter belt close to the metal stone outlet, and the height of the end of the wood slag conveyor belt close to the transfer box is lower than the height of the end close to the wood slag outlet, and the highest point of the wood slag conveyor belt is flush with the highest point of the wood slag outlet.

[0009] Preferably, a liquid level gauge is provided between the driftwood box and the gold and stone box, one side of the sedimentation box is connected to a water pump through a pipeline, and the side of the water pump away from the sedimentation box is connected to a mud separation tank through a pipeline, the side of the sorting machine box away from the transfer box is provided with a magnetic separator, and a lifting conveyor belt is provided between the magnetic separator and the gold and stone outlet.

[0010] By adopting the above technical scheme, the classification of construction waste can be completed without crushing the construction materials into slag, thereby reducing the production cost of the admixture and reducing the noise and dust generated in the production process of the admixture. The driftwood slag in the driftwood box is discharged and collected from the slag outlet, while the metal blocks and stones are discharged from the metal and stone outlet. The metal and stones on the conveyor filter belt are transported to the metal and stone outlet, and the driftwood slag on the slag conveyor belt is transported to the slag outlet. The metal and stones in the metal and stone outlet are transported to the lifting conveyor belt, and the lifting conveyor belt sends the metal and stones into the magnetic separator. The mixed metal and stones are separated by magnetic force in the magnetic separator, and the separated metal and stones are used as different admixtures respectively.

[0011] Preferably, the adsorption push plate assembly is connected between two sets of transmission chains, and the two sets of transmission chains are respectively arranged on the inner walls on both sides of the floating wooden box. The adsorption push plate assembly includes two sets of transmission connecting blocks and multiple sets of flat magnetic rods, and the two sets of transmission connecting blocks are respectively connected to the inner sides of the two sets of transmission chains.

[0012] Preferably, a fixed connecting shaft is connected between the two groups of transmission connecting blocks, multiple groups of flat magnetic bars are fixedly connected to the fixed connecting shaft, and multiple groups of flat magnetic bars are arranged in an array along the fixed connecting shaft, two groups of mutually symmetrical debris scrapers are provided in the debris scraper, and the debris scraper is embedded with the multiple groups of flat magnetic bars.

[0013] By adopting the above technical solution, metal can be separated from wood, and lighter lightweight metal can be separated from wood residue and collected to avoid metal mixing in subsequent wood admixtures. During the movement, the flat magnetic rod pushes the wood residue floating on the water surface and some lightweight metal debris to move in the direction of the wood residue conveyor belt, and the lightweight metal debris is adsorbed on the flat magnetic rod during the movement. When the flat magnetic rod moves in a direction away from the water surface, the flat magnetic rod is vertically upward, and the transmission chain stops rotating briefly at this time. At the same time, the separation cylinder drives the debris scraper to move downward, and when the debris scraper moves to the outside of the flat magnetic rod, the debris scraper can scrape off the metal debris on the outside of the flat magnetic rod, and the scraped metal debris falls into the debris collection box for collection.

[0014] Preferably, a spray bucket is provided on one side of the wetting box, and the mud separation tank is connected to the spray bucket through a pipeline. Multiple groups of spray nozzles are connected between the wetting box and the spray bucket through pipelines. The wetting box, primary crushing box, secondary crushing box and transfer box are all interconnected.

[0015] Preferably, multiple groups of primary crushing rollers are provided in the primary crushing box, and multiple groups of transverse crushing rollers and multiple groups of longitudinal crushing rollers are provided in the secondary crushing box, and the transverse crushing rollers are perpendicular to each other, and the planes where the multiple groups of transverse crushing rollers are located are parallel to the planes where the multiple groups of longitudinal crushing rollers are located.

[0016] Preferably, the transfer box is connected to the sorting box, a buffer bottom plate is provided at the bottom of the transfer box, and the buffer bottom plate and the transfer box are connected by multiple sets of springs, a connecting buckle plate is provided at one end of the buffer bottom plate close to the sorting box, and one end of the conveyor filter belt is fitted with one end of the connecting buckle plate.

[0017] Preferably, a discharge baffle is connected to the bottom of one end of the transfer box close to the sorting box, and the discharge baffle includes two groups of side panels and a group of sealing plates, and the sealing plate is connected between the two groups of side panels. A buffer gasket is provided on the top of the sealing plate, and the connecting buckle plate is buckled between the sealing plate and the two groups of side panels.

[0018] By adopting the above technical solution, the noise and dust generated in the production crushing process can be reduced by spraying and storing water, and the falling construction waste can be buffered. The crushed construction waste first falls onto the buffer bottom plate, and the spring at the bottom of the buffer bottom plate relieves the impact force of the falling construction waste. When the buffer bottom plate is pressed to the lowest point, the connecting buckle plate is flush with the conveyor filter belt, and the bottom of the buffer bottom plate is sealed by the sealing plate and two sets of side plates to prevent construction waste from entering under the buffer bottom plate, and the buffer gasket of the sealing plate buffers the fall of the connecting buckle plate, and the construction waste on the connecting buckle plate enters the conveyor filter belt for transmission.

[0019] 1. Compared with the existing technology, this production system of construction waste recycled admixture can complete the classification of construction waste without crushing the construction materials into debris, thereby reducing the production cost of the admixture and reducing the noise and dust generated in the admixture production process. The spray bucket sprays water into the primary crushing box through the spray nozzle, and when there is enough water in the transfer box, the crushing work is carried out, and the construction waste is poured into the wetting box for processing. The construction waste first enters the primary crushing box for initial crushing, and the small pieces of construction waste enter the secondary crushing box for further crushing, and the construction waste is crushed into the size used as the admixture, and the wood blocks are squeezed horizontally by multiple groups of horizontal crushing rollers, and The wood blocks are squeezed longitudinally by multiple groups of longitudinal crushing rollers, so that the wood blocks are completely cracked, and then the metal objects such as nails and patches in the wood blocks are separated from the wood blocks, and the driftwood slag in the driftwood box is discharged and collected from the slag outlet, while the metal blocks and stones are discharged from the metal and stone outlet. The metal and stones on the conveyor filter belt are transported to the metal and stone outlet, and the driftwood slag on the slag conveyor belt is transported to the slag outlet. The metal and stones in the metal and stone outlet are transported to the lifting conveyor belt, and the lifting conveyor belt sends the metal and stones into the magnetic separator, and the mixed metal and stones are separated by magnetic force in the magnetic separator, and the separated metal and stones are used as different admixtures.

[0020] 2. Compared with the existing technology, this production system of construction waste recycled admixture can separate metal from wood, and can separate lighter lightweight metal from wood residue and collect them, so as to avoid the subsequent wood admixture being mixed with metal. The transmission chain is driven by a motor to drive the sprocket to rotate. During the movement of the driving chain, the adsorption push plate assembly is driven by two sets of transmission connecting blocks to move along the moving direction of the transmission chain. The transmission connecting block drives the fixed connecting shaft to move, and the fixed connecting shaft drives multiple sets of flat magnetic bars to move during the movement. During the movement, the flat magnetic rod pushes the wood chips and some light metal debris floating on the water surface toward the wood chip conveyor belt, and the light metal debris is adsorbed on the flat magnetic rod during the movement. When the flat magnetic rod moves away from the water surface, the flat magnetic rod is vertically upward, and the transmission chain stops rotating briefly. At the same time, the separation cylinder drives the debris scraper to move downward, and when the debris scraper moves to the outside of the flat magnetic rod, the debris scraper can scrape off the metal debris on the outside of the flat magnetic rod, and the scraped metal debris falls into the debris collection box for collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the main body of this application; Figure 2 This is a structural diagram of the front side of the sorting machine box of this application; Figure 3 This is a schematic structural diagram of the side section of the sorting machine box of this application; Figure 4 This is a schematic diagram of the structure of the metal debris separation device of the present application from a top view; Figure 5 This is a structural diagram of the adsorption push plate assembly of this application; Figure 6 This is a schematic structural diagram of the debris scraper of this application; Figure 7 This is a schematic diagram of the structure of the transmission chain of this application; Figure 8 This is a schematic structural diagram of the side section of the secondary crushing box of this application; Figure 9 This is a structural diagram of the buffer bottom plate of this application.

[0022] The accompanying drawings are marked as follows: 1. Loading platform; 2. Wetting box; 21. Spray bucket; 211. Spray nozzle; 3. Primary crushing box; 31. Primary crushing roller; 4. Secondary crushing box; 41. Horizontal crushing roller; 42. Longitudinal crushing roller; 5. Transfer box; 51. Buffer bottom plate; 511. Connecting buckle plate; 52. Discharge baffle; 521. Side plate; 522. Closing plate; 523. Buffer gasket; 6. Sorting box; 61. Floating wood box; 611. Wood chips outlet; 612. Wood chips conveyor belt ; 62. Gold and stone box; 621. Gold and stone outlet; 622. Liquid level gauge; 63. Sedimentation box; 631. Conveyor filter belt; 632. Water pump; 64. Mud separation tank; 7. Magnetic separator; 71. Lifting conveyor belt; 8. Metal debris separation device; 81. Transmission chain; 82. Adsorption push plate assembly; 821. Transmission connecting block; 822. Fixed connecting shaft; 823. Flat magnetic rod; 83. Debris collection box; 9. Separation cylinder; 91. Debris scraper; 911. Debris scraper. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0024] The following is combined with Figures 1-9 , further details of this application are given.

[0025] A production system for construction waste recycled admixtures, comprising a loading platform 1, a sorting machine box 6 and a metal debris separation device 8, Figure 1 and Figure 3 A wetting box 2 is provided at one end of the feeding platform 1, and a primary crushing box 3, a secondary crushing box 4 and a transfer box 5 are sequentially provided below the wetting box 2. A sorting box 6 is connected to one end of the transfer box 5, and the sorting box 6 is sequentially provided with a driftwood box 61, a gold and stone box 62 and a sedimentation box 63 from top to bottom; Among them, the metal debris separation device 8 is connected to the inner wall of the floating wood box 61, a debris collection box 83 is provided inside the metal debris separation device 8, and a separation cylinder 9 is provided on the top of the metal debris separation device 8, and a debris scraper 91 is connected to the bottom of the separation cylinder 9. The metal debris separation device 8 includes two sets of transmission chains 81 and multiple sets of adsorption push plate assemblies 82; the construction waste can be transported to the loading platform 1 by a transport vehicle and poured into the wetting box 2 for processing, and the construction waste first enters the primary crushing box 3 for primary crushing, breaking large pieces of construction waste into smaller pieces, and Small pieces of construction waste enter the secondary crushing box 4 for further crushing, and the construction waste crushed into pieces of appropriate size falls into the sedimentation box 63 and enters the sorting machine box 6 from the sedimentation box 63 for sorting. Wood residue and some light metal debris float in the driftwood box 61, and the light metal debris is adsorbed and collected by the metal debris separation device 8, and the metal debris adsorbed on the metal debris separation device 8 is scraped off by the debris scraper 91 driven by the separation cylinder 9, while the metal blocks and stones enter the metal and stone box 62, and the mud mixed in the water falls into the sedimentation box 63.

[0026] Reference Figure 2 and Figure 3 The driftwood box 61 and the stone box 62 are connected to each other, and a conveyor filter belt 631 is provided between the stone box 62 and the sedimentation box 63. The end of the driftwood box 61 away from the transfer box 5 is connected to the wood residue outlet 611, and the end of the stone box 62 away from the transfer box 5 is connected to the stone outlet 621; the liquid level in the stone box 62 is flush with the bottom of the driftwood box 61, and the metal and stone in the stone box 62 are conveyed on the top of the conveyor filter belt 631, and the conveyor filter belt 631 has holes for filtering. Some smaller stone debris and water fall into the sedimentation box 63 from the conveyor filter belt 631, and the driftwood slag in the driftwood box 61 is discharged and collected from the wood residue outlet 611, and the metal blocks and stones are discharged from the stone outlet 621.

[0027] Reference Figure 2 and Figure 3 The conveyor filter belt 631 is flush with the highest point of the metal and stone outlet 621, and a wood chip conveyor belt 612 is arranged above the end of the conveyor filter belt 631 close to the metal and stone outlet 621, and the height of the end of the wood chip conveyor belt 612 close to the transfer box 5 is lower than the height of the end close to the wood chip outlet 611, and the highest point of the wood chip conveyor belt 612 is flush with the highest point of the wood chip outlet 611; the metal and stone on the conveyor filter belt 631 are transported to the metal and stone outlet 621, one end of the wood chip conveyor belt 612 extends into the metal and stone box 62, and one end of the wood chip conveyor belt 612 is below the water surface, and the floating wood and wood chip on the wood chip conveyor belt 612 is transported to the wood chip outlet 611.

[0028] Reference Figure 1 、 Figure 2 and Figure 3 A liquid level gauge 622 is provided between the floating wood box 61 and the gold and stone box 62, one side of the sedimentation box 63 is connected to a water pump 632 through a pipeline, and the side of the water pump 632 away from the sedimentation box 63 is connected to the mud separation tank 64 through a pipeline, and a magnetic separator 7 is provided on the side of the sorting machine box 6 away from the transfer box 5, and a lifting conveyor belt 71 is provided between the magnetic separator 7 and the gold and stone outlet 621; the liquid level gauge 622 is used to monitor the water level in the gold and stone box 62 in real time, and when the water level in the gold and stone box 62 is higher than the bottom of the floating wood box 61, the water pump 632 will pump the sewage in the sedimentation box 63 into the mud separation tank 64, and solidify the mud and water in the mud separation tank 64 Liquid separation, and the mud separation tank 64 is an existing common solid-liquid separation equipment, and similar equipment is used in various sewage treatments. Its specific separation process and principle are not described in detail here. The metal stones in the metal stone outlet 621 are transported to the lifting conveyor belt 71, and the lifting conveyor belt 71 sends the metal stones into the magnetic separator 7, and the mixed metal stones are separated from the metal by the action of magnetism in the magnetic separator 7, and the separated metals and stones are used as different admixtures respectively. The magnetic separator 7 is an existing common metal separation equipment, and its specific working principle and screening process are not described in detail here.

[0029] Reference Figure 5 and Figure 7 The adsorption push plate assembly 82 is connected between the two sets of transmission chains 81, and the two sets of transmission chains 81 are respectively arranged on the inner walls of both sides of the floating wood box 61. The adsorption push plate assembly 82 includes two sets of transmission connecting blocks 821 and multiple sets of flat magnetic bars 823, and the two sets of transmission connecting blocks 821 are respectively connected to the inner sides of the two sets of transmission chains 81; the transmission chain 81 is rotated by a motor-driven sprocket, and the motor driving the transmission chain 81 is a stepping motor, which can accurately control the rotation speed and moving distance of the transmission chain 81. During the movement, the driving transmission chain 81 drives the adsorption push plate assembly 82 to move along the moving direction of the transmission chain 81 through the two sets of transmission connecting blocks 821.

[0030] Reference Figure 4 、 Figure 5 and Figure 6A fixed connecting shaft 822 is connected between the two sets of transmission connecting blocks 821, and multiple sets of flat magnetic rods 823 are fixedly connected to the fixed connecting shaft 822, and the multiple sets of flat magnetic rods 823 are arranged in an array along the fixed connecting shaft 822. Two sets of symmetrical debris scrapers 911 are provided in the debris scraper 91, and the debris scraper 91 is engaged with the multiple sets of flat magnetic rods 823; the multiple sets of flat magnetic rods 823 are closely arranged, and the fixed connecting shaft 822 is driven to move by the transmission connecting block 821, and the fixed connecting shaft 822 drives the multiple sets of flat magnetic rods 823 to move during the movement, and the flat magnetic rods 823 push the wood chips and some light metal debris floating on the water surface during the movement. It moves in the direction of the wood chip conveyor belt 612, and during the movement, lightweight metal debris is adsorbed onto the flat magnetic rod 823. When the flat magnetic rod 823 moves in the direction away from the water surface, the flat magnetic rod 823 is vertically upward, and the transmission chain 81 stops rotating briefly at this time. At the same time, the separation cylinder 9 drives the debris scraper 91 to move downward, and when the debris scraper 91 moves to the outside of the flat magnetic rod 823, the debris scraper 911 can scrape off the metal debris on the outside of the flat magnetic rod 823, and the scraped metal debris falls into the debris collection box 83 for collection, and when the separation cylinder 9 drives the debris scraper 91 to rise and reset, the transmission chain 81 resumes its rotation.

[0031] Reference Figure 1 and Figure 8 A spraying bucket 21 is provided on one side of the wetting box 2, and the mud separation tank 64 is connected to the spraying bucket 21 through a pipeline. A plurality of spraying nozzles 211 are connected between the wetting box 2 and the spraying bucket 21 through a pipeline. The wetting box 2, the primary crushing box 3, the secondary crushing box 4 and the transfer box 5 are all interconnected; the spraying bucket 21 is filled with water, and the water separated by the mud separation tank 64 is transported to the wetting box 2 through a pipeline. Before crushing, the spraying bucket 21 first sprays water into the primary crushing box 3 through the spraying nozzle 211, and when sufficient water is accumulated in the transfer box 5, the crushing work is carried out, and when the crushing work is carried out, the spraying nozzle 211 always performs spraying action, and continuous spraying can reduce the generation of dust and can reduce the generation of noise to a certain extent, and the water in the transfer box 5 can reduce the impact force caused by the falling construction waste.

[0032] Reference Figure 1 and Figure 8, multiple groups of primary crushing rollers 31 are provided in the primary crushing box 3, and multiple groups of transverse crushing rollers 41 and multiple groups of longitudinal crushing rollers 42 are provided in the secondary crushing box 4, and the transverse crushing rollers 41 are perpendicular to each other, and the planes where the multiple groups of transverse crushing rollers 41 are located are parallel to the planes where the multiple groups of longitudinal crushing rollers 42 are located; the multiple groups of primary crushing rollers 31 crush large pieces of construction waste into small pieces, and the multiple groups of transverse crushing rollers 41 and multiple groups of longitudinal crushing rollers 42 further crush the construction waste to the size of admixture, and the multiple groups of transverse crushing rollers 41 squeeze the wood blocks transversely, and the multiple groups of longitudinal crushing rollers 42 squeeze the wood blocks longitudinally, so that the wood blocks are completely cracked, and then the metal objects such as nails and patches in the wood blocks are separated from the wood blocks.

[0033] Reference Figure 8 and Figure 9 The transfer box 5 is connected to the sorting box 6, and a buffer bottom plate 51 is provided at the bottom of the transfer box 5, and the buffer bottom plate 51 is connected to the transfer box 5 by multiple sets of springs. A connecting buckle plate 511 is provided at one end of the buffer bottom plate 51 close to the sorting box 6, and one end of the conveying filter belt 631 is in contact with one end of the connecting buckle plate 511; the crushed construction waste first falls onto the buffer bottom plate 51, and the spring at the bottom of the buffer bottom plate 51 unloads the impact force of the falling construction waste, and when the buffer bottom plate 51 is pressed to the lowest point, the connecting buckle plate 511 is flush with the conveying filter belt 631, and the construction waste on the connecting buckle plate 511 enters the conveying filter belt 631 for transmission.

[0034] Reference Figure 8 and Figure 9 The bottom of the transfer box 5 close to the sorting box 6 is connected with a discharge baffle 52, which includes two groups of side panels 521 and a group of sealing panels 522, and the sealing panels 522 are connected between the two groups of side panels 521, and a buffer gasket 523 is provided on the top of the sealing panel 522, and the connecting buckle plate 511 is snapped between the sealing panel 522 and the two groups of side panels 521; during the falling process of the buffer bottom plate 51, the connecting buckle plate 511 is snapped onto the sealing panel 522, and the bottom of the buffer bottom plate 51 is sealed by the sealing panel 522 and the two groups of side panels 521 to prevent construction waste from entering under the buffer bottom plate 51, and the buffer gasket 523 of the sealing panel 522 cushions the falling of the connecting buckle plate 511.

[0035] The working process of the present application is as follows: first, the construction waste can be transported to the loading platform 1 by a transport vehicle, and water is sprayed into the primary crushing box 3 by the spraying bucket 21 through the spraying nozzle 211. When there is enough water in the transfer box 5, the crushing work is carried out, and the construction waste is poured into the wetting box 2 for processing. The construction waste first enters the primary crushing box 3 for primary crushing, and multiple groups of primary crushing rollers 31 crush large pieces of construction waste into small pieces, and crush large pieces of construction waste into smaller pieces, and small pieces of construction waste are crushed into small pieces. The waste then enters the secondary crushing box 4 for further crushing. Multiple sets of transverse crushing rollers 41 and multiple sets of longitudinal crushing rollers 42 further crush the waste into the size used as admixture. The multiple sets of transverse crushing rollers 41 squeeze the wood blocks transversely, and the multiple sets of longitudinal crushing rollers 42 squeeze the wood blocks longitudinally, so that the wood blocks are completely cracked, and then the metal objects such as nails and patches in the wood blocks are separated from the wood blocks. The crushed waste into pieces of appropriate size falls into the sedimentation box 63. The crushed construction waste first falls onto the buffer bottom plate 51, and the spring at the bottom of the buffer bottom plate 51 relieves the impact of the falling construction waste. When the buffer bottom plate 51 is pressed to the lowest point, the connecting gusset plate 511 is flush with the conveyor filter belt 631, and the bottom of the buffer bottom plate 51 is sealed by the sealing plate 522 and the two sets of side plates 521 to prevent the construction waste from entering the bottom of the buffer bottom plate 51. The buffer gasket 523 of the sealing plate 522 cushions the fall of the connecting gusset plate 511, and the construction waste on the connecting gusset plate 511 enters the conveyor filter belt 631 for transmission and is sent to the sorting box 6 for sorting. Wood chips and some light metal debris float in the driftwood box 61, the metal and stone in the stone box 62 are transported on the top of the conveyor filter belt 631, and some smaller stone debris and water fall into the sedimentation box 63 from the conveyor filter belt 631, and the level meter 622 is used to monitor the water level in the stone box 62 in real time. When the water level in the stone box 62 is higher than the bottom of the driftwood box 61, the water pump 632 pumps the sewage in the sedimentation box 63 into the mud separation tank 64, and performs solid-liquid separation of mud and water in the mud separation tank 64. The transmission chain 81 is driven by the motor chain. The pulley rotates, driving the transmission chain 81. During the movement, the adsorption push plate assembly 82 is driven to move along the moving direction of the transmission chain 81 through two sets of transmission connection blocks 821. The transmission connection blocks 821 drive the fixed connection shaft 822 to move. The fixed connection shaft 822 drives multiple sets of flat magnetic rods 823 to move during the movement. The flat magnetic rods 823 push the wood chips and some light metal debris floating on the water surface toward the wood chip conveyor belt 612 during the movement. The light metal debris is attracted to the flat magnetic rods 823 during the movement. When the flat magnetic bar 823 moves away from the water surface, the flat magnetic bar 823 is vertically upward, and the transmission chain 81 stops rotating temporarily. At the same time, the separation cylinder 9 drives the debris scraper 91 to move downward. When the debris scraper 91 moves to the outside of the flat magnetic bar 823, the debris scraper 911 can scrape off the metal debris on the outside of the flat magnetic bar 823. The scraped metal debris falls into the debris collection box 83 for collection. When the separation cylinder 9 drives the debris scraper 91 to rise and reset, the transmission chain 81 resumes rotating. The driftwood slag in the driftwood box 61 is discharged and collected from the slag outlet 611, and the metal blocks and stones are discharged from the metal and stone outlet 621. The metal and stones on the conveyor filter belt 631 are transported to the metal and stone outlet 621. One end of the slag conveyor belt 612 extends into the metal and stone box 62, and one end of the slag conveyor belt 612 is below the water surface. The driftwood slag on the slag conveyor belt 612 is transported to the slag outlet 611, and the metal and stone blocks in the metal and stone outlet 621 are transported to the lifting conveyor belt 71, and the lifting conveyor belt 71 sends the metal and stone blocks into the magnetic separator 7. The mixed metal and stone blocks are separated by magnetic force in the magnetic separator 7, and the separated metal and stone blocks are used as different admixtures respectively.

[0036] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A production system for construction waste recycled admixture, comprising a loading platform (1), a sorting box (6) and a metal debris separation device (8), characterized in that: A wetting box (2) is provided at one end of the loading platform (1), and a primary crushing box (3), a secondary crushing box (4) and a transfer box (5) are sequentially provided below the wetting box (2), the sorting box (6) is connected to one end of the transfer box (5), and the sorting box (6) is sequentially provided with a driftwood box (61), a gold and stone box (62) and a sedimentation box (63) from top to bottom; The metal debris separation device (8) is connected to the inner wall of the floating wood box (61), a debris collection box (83) is provided inside the metal debris separation device (8), a separation cylinder (9) is provided on the top of the metal debris separation device (8), and a debris scraper (91) is connected to the bottom of the separation cylinder (9), and the metal debris separation device (8) includes two sets of transmission chains (81) and multiple sets of adsorption push plate assemblies (82).

2. The production system of construction waste recycled admixture according to claim 1, characterized in that: The floating wood box (61) and the gold and stone box (62) are connected to each other, and a conveying filter belt (631) is provided between the gold and stone box (62) and the sedimentation box (63). One end of the floating wood box (61) away from the transfer box (5) is connected to a wood residue outlet (611), and one end of the gold and stone box (62) away from the transfer box (5) is connected to a gold and stone outlet (621).

3. The production system of construction waste recycled admixture according to claim 2, characterized in that: The conveyor filter belt (631) is flush with the highest point of the metal stone outlet (621); a wood slag conveyor belt (612) is provided above one end of the conveyor filter belt (631) close to the metal stone outlet (621); the height of the end of the wood slag conveyor belt (612) close to the transfer box (5) is lower than the height of the end close to the wood slag outlet (611); and the highest point of the wood slag conveyor belt (612) is flush with the highest point of the wood slag outlet (611).

4. The production system of construction waste recycled admixture according to claim 2, characterized in that: A liquid level gauge (622) is provided between the floating wood box (61) and the gold and stone box (62); one side of the sedimentation box (63) is connected to a water pump (632) via a pipeline, and the side of the water pump (632) away from the sedimentation box (63) is connected to a mud separation tank (64) via a pipeline; a magnetic separator (7) is provided on the side of the sorting machine box (6) away from the transfer box (5), and a lifting conveyor belt (71) is provided between the magnetic separator (7) and the gold and stone outlet (621).

5. The production system of construction waste recycled admixture according to claim 1, characterized in that: The adsorption push plate assembly (82) is connected between two sets of transmission chains (81), and the two sets of transmission chains (81) are respectively arranged on the inner walls of both sides of the floating wood box (61). The adsorption push plate assembly (82) includes two sets of transmission connection blocks (821) and multiple sets of flat magnetic bars (823), and the two sets of transmission connection blocks (821) are respectively connected to the inner sides of the two sets of transmission chains (81).

6. The production system of construction waste recycled admixture according to claim 5, characterized in that: A fixed connection shaft (822) is connected between the two groups of transmission connection blocks (821), and the multiple groups of flat magnetic bars (823) are fixedly connected to the fixed connection shaft (822), and the multiple groups of flat magnetic bars (823) are arranged in an array along the fixed connection shaft (822). Two groups of mutually symmetrical debris scrapers (911) are provided in the debris scraper cylinder (91), and the debris scraper cylinder (91) and the multiple groups of flat magnetic bars (823) are embedded.

7. The production system of construction waste recycled admixture according to claim 4, characterized in that: A spraying bucket (21) is provided on one side of the wetting box (2), and the mud separation tank (64) is connected to the spraying bucket (21) via a pipeline. A plurality of spray nozzles (211) are connected between the wetting box (2) and the spraying bucket (21) via a pipeline. The wetting box (2), the primary crushing box (3), the secondary crushing box (4), and the transfer box (5) are all interconnected.

8. The production system of construction waste recycled admixture according to claim 1, characterized in that: The primary crushing box (3) is provided with a plurality of groups of primary crushing rollers (31), and the secondary crushing box (4) is provided with a plurality of groups of transverse crushing rollers (41) and a plurality of groups of longitudinal crushing rollers (42), wherein the transverse crushing rollers (41) are perpendicular to each other, and the planes on which the plurality of groups of transverse crushing rollers (41) are located are parallel to the planes on which the plurality of groups of longitudinal crushing rollers (42) are located.

9. The production system of construction waste recycled admixture according to claim 2, characterized in that: The transfer box (5) is connected to the sorting box (6), a buffer bottom plate (51) is provided at the bottom of the transfer box (5), and the buffer bottom plate (51) and the transfer box (5) are connected via multiple sets of springs, a connecting buckle plate (511) is provided at one end of the buffer bottom plate (51) close to the sorting box (6), and one end of the conveying filter belt (631) is in contact with one end of the connecting buckle plate (511).

10. The production system of construction waste recycled admixture according to claim 9, characterized in that: A discharge baffle (52) is connected to the bottom of one end of the transfer box (5) close to the sorting machine box (6), and the discharge baffle (52) includes two groups of side panels (521) and a group of sealing panels (522), and the sealing panels (522) are connected between the two groups of side panels (521). A buffer gasket (523) is provided on the top of the sealing panel (522), and the connecting buckle plate (511) is buckled between the sealing panel (522) and the two groups of side panels (521).

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