CN110665577B

CN110665577B - Concrete waste recovery device for civil engineering

Info

Publication number: CN110665577B
Application number: CN201910823936.7A
Authority: CN
Inventors: 马臻臻; 宋丽红; 樊松丽
Original assignee: Henan Polytechnic Institute
Current assignee: Henan Polytechnic Institute
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2021-05-28
Anticipated expiration: 2039-09-02
Also published as: CN110665577A

Abstract

The utility model provides a concrete waste recovery device for civil engineering, includes the box, and the feed inlet is seted up on the box top, and the bin outlet is seted up to the box bottom, two crushing rollers that have the motor of movable mounting between the inner wall of both ends around the box, two crushing roller meshing cooperations, the articulated erection bracing board of rear end inner wall of box, the backup pad is located the below of crushing roller, and the recess is seted up to the front end of backup pad, and the both sides inner wall of recess all communicates with each other with the external world. The invention can recover the metal containing iron, cobalt and nickel in the crushed construction waste, simultaneously crush the construction waste, can continuously work by alternate adsorption, provides a certain buffer time when cleaning the electromagnet, and does not need to make the area of the electromagnet fully utilized in the adsorption process.

Description

Concrete waste recovery device for civil engineering

Technical Field

The invention belongs to the technical field of constructional engineering equipment, and particularly relates to a concrete waste recovery device for civil engineering.

Background

Civil engineering refers to both the materials used, the equipment and the technical activities carried out, such as surveying, designing, constructing, maintaining, repairing, etc., and also to the objects of engineering construction. The engineering facilities are constructed on the ground or underground, on the land or in water, and directly or indirectly serve human life, production, military and scientific research, such as houses, roads, railways, pipelines, tunnels, bridges, canals, dams, ports, power stations, airports, ocean platforms, water supply and drainage, protection engineering and the like; the service life of the concrete is generally 50-60 years. The method is characterized in that the method is a starting period of new urbanization construction in China, waste concrete for dismantling old buildings is not negligible in the process of modifying rural houses, waste concrete blocks are not only high-quality concrete aggregates, the waste concrete blocks are used as the aggregates, and the method has many advantages.

Disclosure of Invention

The invention provides a concrete waste recovery device for civil engineering, which is used for overcoming the defects in the prior art.

The invention is realized by the following technical scheme:

a concrete waste recovery device for civil engineering comprises a box body, wherein a feed inlet is formed in the top end of the box body, a discharge outlet is formed in the bottom end of the box body, two crushing rollers with motors are movably mounted between the inner walls of the front end and the rear end of the box body and are meshed and matched, a supporting plate is hinged to the inner wall of the rear end of the box body and is positioned below the crushing rollers, a groove is formed in the front end of the supporting plate, the inner walls of the two sides of the groove are communicated with the outside, an electric telescopic rod is fixedly mounted on the inner wall of the rear end of the groove, the extending direction of the electric telescopic rod faces forward, a connecting plate is fixedly mounted at the front end of a movable rod of the electric telescopic rod and is positioned in the groove, the side end of the connecting plate can be in contact and match with the inner wall of the side end of the box body, a, the two sides of the box body are respectively provided with a first opening, the first opening is positioned between the crushing roller and the supporting plate, the two sides of the box body are respectively and fixedly provided with a collecting box, the tops of the opposite ends of the two collecting boxes are provided with a second opening, the second opening and the first opening are positioned on the same horizontal plane, the second opening is communicated with the inside of the first opening, the inner wall of the rear end of one collecting box is provided with a placing groove, a lead screw with a motor is movably arranged between the inner walls of the two sides of the placing groove, a nut is matched and arranged on the lead screw, the front end of the nut is fixedly provided with a first frame, the nut is positioned on one side of the first frame, the height of the first frame is larger than that of the placing groove, the other side of the first frame is fixedly provided with a connecting block, a cavity is arranged inside the connecting block, one side of the connecting block is fixedly provided with a second frame, the second frame can penetrate through the first, the inner walls of two sides of the cavity are respectively provided with a second through groove which is communicated with the inside of the first through groove, two screw rods are movably arranged between the inner walls of the front end and the rear end of the cavity and are respectively positioned at two sides of the cavity, the cavity is internally provided with two connecting blocks in a matching way, the rear end of each connecting block is provided with a screw hole, each screw rod can penetrate through a corresponding screw hole, the opposite ends of the two connecting blocks are respectively and fixedly provided with an electromagnet, the electromagnets are respectively positioned in the first frame and the second frame, the inner wall of the bottom end of the cavity is provided with a chute, a reciprocating lead screw with a motor is movably arranged between the inner walls of two sides of the chute, a nut is matched on the reciprocating lead screw, the top end of the nut is fixedly provided with a double-shaft motor, the width of the double-shaft motor is larger than that of the chute, the end part of an output shaft of the double, movably mounted spraying device between the both sides inner wall of collecting the box, spraying device is located the below of electro-magnet, the sliding tray is seted up respectively to the both sides inner wall of collecting the box, the sliding tray is located spraying device's below, the front end of sliding tray communicates with each other with the external world, the sliding tray fit in is equipped with two sliding blocks, through filter screen fixed connection between four sliding blocks that are located same collecting box, the window is seted up to the front end of collecting the box, articulated installation end cover on the window, the delivery pipe is connected to the bottom of collecting the box, the delivery pipe communicates with each other with collecting the box inside.

The concrete waste recovery device for civil engineering comprises a horizontal rod and a plurality of nozzles, wherein the nozzles are fixedly arranged at the bottom end of the horizontal rod, and the nozzles are connected with a water storage device through pipelines.

As above concrete waste recovery device for civil engineering, collection box top fixed mounting sewage filter equipment, the one end and the sewage filter equipment's of delivery pipe top fixed connection, one side bottom fixed connection connecting pipe of sewage filter equipment, the one end and the spray set of connecting pipe are connected.

According to the concrete waste recycling device for civil engineering, the inner wall of one side of the first frame and the inner wall of one side of the second frame are respectively provided with the guide groove, the guide grooves are internally provided with the guide blocks in a matching manner, and the guide blocks are fixedly connected with the electromagnets.

According to the concrete waste recycling device for civil engineering, the inclined plate is fixedly arranged on the inner wall of the front end of the box body, and the inclined plate is positioned above the wire wheel.

According to the concrete waste recycling device for civil engineering, the front end of the connecting plate is of an arc-shaped structure.

According to the concrete waste recycling device for civil engineering, the inner wall of the top end of one side of the box body is provided with the through hole, the fan is fixedly installed in the through hole, the dust precipitation device is fixedly installed on the outer wall of one side of the box body, and the through hole is communicated with the interior of the dust precipitation device.

The invention has the advantages that: pouring the construction waste into a box body from a feed inlet, crushing the construction waste by a crushing roller, wherein the construction waste is small particles and falls into a supporting plate and a connecting plate, the second frame is positioned in the box body, an electromagnet in the second frame is electrified to adsorb the metal containing iron, cobalt and nickel in the construction waste onto the electromagnet, a wire wheel is used for taking up and paying off, an electric telescopic rod is used for extending or contracting, the supporting plate can be upwards turned or downwards turned around a hinge point as a center to drive the connecting plate to turn up and down, the crushed construction waste on the connecting plate and the supporting plate is turned over to expose the metal containing iron, cobalt and nickel is adsorbed by the electromagnet, after a period of adsorption, a motor of a screw rod works, the screw rod is in threaded fit with a nut, the nut is fixedly connected with a first frame to drive the first frame to move towards the box body, and the second frame moves towards the other collecting box, moving the first frame into the box body, then electrifying the electromagnet in the first frame, powering off the electromagnet in the second frame, adsorbing the electromagnet in the first frame again, after powering off the electromagnet in the second frame, enabling the metal containing iron, cobalt and nickel to fall into a filter screen in another collecting box, after the metal falls into the filter screen, starting the spraying device to work, washing the periphery of the metal containing iron, cobalt and nickel, separating the building waste residues and the metal, after washing for a period of time, opening the end cover, pulling the filter screen outwards, pulling the filter screen out of the collecting box, and collecting and recovering the metal on the filter screen; after the building waste is adsorbed for a period of time, the electric telescopic rod contracts to pull the connecting plate to move towards the groove, a gap is leaked between the front end of the connecting plate and the inner wall of the front end of the box body, the wire is wound off, the supporting plate drives the connecting plate to be turned over downwards, the crushed building waste falls into the bottom end of the box body and is discharged from the discharge port, and then the building waste is uniformly recovered; when the second frame is positioned in the box body, the reciprocating screw rod is driven by the motor to work, the reciprocating screw rod is in threaded fit with the nut, the nut is fixedly connected with the double-shaft motor, the double-shaft motor is driven to move towards the second frame, the first bevel gear is meshed with the second bevel gear to be matched, the screw rod positioned on the left side starts to rotate under the driving of the second bevel gear at the moment, the screw rod is in threaded fit with the screw hole to drive the connecting block to reciprocate back and forth, the connecting block is fixedly connected with the electromagnet to drive the electromagnet to reciprocate back and forth in the second frame, and metal containing iron, cobalt and nickel in construction waste can be adsorbed in a wider range. The invention can recover the metal containing iron, cobalt and nickel in the crushed construction waste, simultaneously crush the construction waste, and can continuously work through alternate adsorption, a certain buffer time is provided when the electromagnet is cleaned, the area of the electromagnet does not need to be fully utilized in the adsorption process, although the alternate times are increased, the phenomenon that the metal adsorbed to the periphery of the electromagnet is shaken to fall due to insufficient adsorption force is avoided, the adsorption effect is better, the adsorption efficiency is improved, and after the metal is placed in a collection box, the metal containing iron, cobalt and nickel can be washed, the waste residue at the periphery is washed away, and the metal containing iron, cobalt and nickel can be better separated from the waste residue.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1; FIG. 3 is a view from the direction B of FIG. 1; FIG. 4 is an enlarged partial view of I of FIG. 3; fig. 5 is an enlarged view of a view toward C of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A concrete waste recovery device for civil engineering comprises a box body 1, wherein a feed inlet 2 is formed in the top end of the box body 1, a discharge outlet is formed in the bottom end of the box body 1, two crushing rollers 3 with motors are movably mounted between the inner walls of the front end and the rear end of the box body 1, the motors are mounted on the inner wall of the rear end of the box body 1, the two crushing rollers 3 are meshed and matched, a supporting plate 4 is hinged to the inner wall of the rear end of the box body 1, the supporting plate 4 is positioned below the crushing rollers 3, a groove 5 is formed in the front end of the supporting plate 4, the inner walls of the two sides of the groove 5 are communicated with the outside, namely the inner wall of the groove 5 penetrates through one side of the supporting plate 4, an electric telescopic rod 6 is fixedly mounted on the inner wall of the rear end of the groove 5, the extending direction of the electric telescopic rod 6 faces the front, a connecting plate, the width of the connecting plate 7 is the same as that of the supporting plate 4, the side end of the connecting plate 7 passes through the side end of the groove 5, a wire wheel 8 with a motor is movably installed on the inner wall of the front end of the box body 1, the motor of the wire wheel is installed at one end of a connecting rope fixedly connected with one end of the wire wheel 8 on the inner wall of the front end of the box body 1, the other end of the connecting rope is fixedly connected with the front end of the top surface of the connecting plate 7, the two sides of the box body 1 are respectively provided with a first opening 9, the first openings 9 are positioned between the crushing roller and the supporting plate 4, the two sides of the box body 1 are respectively and fixedly installed with a collecting box 10, the tops of the opposite ends of the two collecting boxes 10 are provided with a second opening, the second opening and the first opening are positioned on the same horizontal plane, the second opening is communicated with the inside of the first opening, the inner wall of the rear end of one, a nut is arranged on the screw rod 12 in a matching manner, a first frame 13 is fixedly arranged at the front end of the nut, the nut is positioned on one side of the first frame 13, the height of the first frame 13 is greater than that of the placing groove 11, a connecting block 14 is fixedly arranged on the other side of the first frame 13, a cavity is arranged in the connecting block 14, a second frame 15 is fixedly arranged on one side of the connecting block 14, the connecting block 14 is positioned in a first opening on one side of the box body 1 and a second opening of one collecting box 10, the connecting block can move to the first opening when reciprocating left and right, the connecting block is supported through the first opening, so that the structure is more stable, the second frame 15 can penetrate through the first opening and the second opening and be inserted into the other collecting box 10, first penetrating grooves 16 are respectively arranged at the opposite ends of the first frame 13 and the second frame 15, second penetrating grooves are respectively arranged on the inner walls of the two sides of the cavity, and are communicated with the interior of the first penetrating grooves, two screw rods 17 are movably arranged between the inner walls of the front end and the rear end of the cavity, the two screw rods 17 are respectively positioned at two sides of the cavity, two connecting blocks 18 are arranged in the cavity in a matched manner, screw holes are formed in the rear ends of the connecting blocks 18, each screw rod 17 can penetrate through one corresponding screw hole, electromagnets 19 are respectively and fixedly arranged at the opposite ends of the two connecting blocks 18, the electric connection of the electromagnets is well known in the art, repeated description is omitted, the electromagnets 19 are respectively positioned in the first frame 13 and the second frame 15, a sliding groove 20 is formed in the inner wall of the bottom end of the cavity, a reciprocating lead screw 21 with a motor is movably arranged between the inner walls of two sides of the sliding groove 20, a nut is arranged on the reciprocating lead screw 21 in a matched manner, a double-shaft motor 22 is fixedly arranged at the top end of the nut, the width of the double-shaft motor 22 is larger than that, a first bevel gear 23 can be engaged with a corresponding second bevel gear 24, when the double-shaft motor moves to the left, the first bevel gear 23 positioned at the left end of the double-shaft motor is engaged with the second bevel gear positioned at the left side of the cavity, otherwise, when the double-shaft motor moves to the right, the first bevel gear 23 positioned at the right end of the double-shaft motor is engaged with the second bevel gear positioned at the right side of the cavity, a spraying device is movably arranged between the inner walls at the two sides of the collecting box 10, the spraying device is positioned below the electromagnet 19, the inner walls at the two sides of the collecting box 10 are respectively provided with a sliding groove 25, the sliding groove 25 is positioned below the spraying device, the front end of the sliding groove is communicated with the outside, two sliding blocks 26 are arranged in the sliding groove in a matched manner, the four sliding blocks 26 positioned in the same collecting box 10 are fixedly connected through a filter screen 27, the front end of, the end cap 28 is opened to allow removal of the filter screen, and the bottom end of the collection box 10 is connected to a drain tube which communicates with the interior of the collection box 10. Pouring the construction waste into the box body 1 from the feeding port, crushing by the crushing roller, the construction waste is small particles and falls into the supporting plate 4 and the connecting plate 7, at the moment, the second frame 15 is positioned in the box body 1, the electromagnet in the second frame 15 is electrified, the metal containing iron, cobalt and nickel in the construction waste can be adsorbed on the electromagnet, meanwhile, the wire wheel carries out wire winding and wire releasing operations, the electric telescopic rod 6 carries out extension or contraction movement, the supporting plate 4 can be turned upwards or downwards by taking a hinge point as a center, the connecting plate 7 is driven to carry out vertical turning movement, the crushed construction waste on the connecting plate 7 and the supporting plate 4 is rolled, the metal containing iron, cobalt and nickel is exposed and adsorbed by the electromagnet, after a period of adsorption, the motor of the lead screw 12 works, the lead screw is in threaded fit with the nut, the nut is fixedly connected with the first frame 13, and the first frame 13 is driven to move towards the box, the second frame 15 moves into the other collecting box 10 to enable the first frame 13 to move into the box body 1, then the electromagnet in the first frame 13 is electrified, the electromagnet in the second frame 15 is powered off, the electromagnet in the first frame 13 is adsorbed again, after the electromagnet in the second frame 15 is powered off, the metal containing iron, cobalt and nickel falls into the filter screen in the other collecting box 10, after the metal falls into the filter screen, the spraying device starts to work to wash the periphery of the metal containing iron, cobalt and nickel, the building waste residues and the metal are separated again, after the metal is washed for a period of time, the end cover 28 is opened, the filter screen 27 is pulled outwards, the filter screen can be pulled out from the collecting box 10, and the metal on the filter screen is collected and recovered; after the building waste is adsorbed for a period of time, the electric telescopic rod contracts to pull the connecting plate 7 to move into the groove 5, a gap is leaked between the front end of the connecting plate 7 and the inner wall of the front end of the box body 1, the wire is wound by the wire-doubling wheel, the supporting plate 4 drives the connecting plate 7 to be turned downwards, the crushed building waste falls into the bottom end of the box body 1 and is discharged from a discharge port, and then the building waste is uniformly recovered; when the second frame 15 is positioned in the box body 1, the reciprocating screw 21 is driven by the motor to work, the reciprocating screw 21 is in threaded fit with a nut, the nut is fixedly connected with a double-shaft motor, the double-shaft motor 22 is driven to move towards the direction of the second frame 15, the first bevel gear 23 is meshed with the second bevel gear 24, the screw 17 positioned on the left side starts to rotate under the drive of the second bevel gear 24, the screw 17 is in threaded fit with a screw hole to drive the connecting block 18 to reciprocate back and forth, the connecting block 18 is fixedly connected with an electromagnet to drive the electromagnet to reciprocate back and forth in the second frame, can adsorb the metal containing iron, cobalt and nickel in the construction waste in a wider range, and similarly, when the first frame 13 is moved into the box body 1, the double-shaft motor 22 moves towards the first frame 13, so that the first bevel gear is meshed and matched with the right second bevel gear 24, and the electromagnet in the first frame 13 is driven to reciprocate back and forth. The invention can recover the metal containing iron, cobalt and nickel in the crushed construction waste, simultaneously crush the construction waste, and can continuously work through alternate adsorption, a certain buffer time is provided when the electromagnet is cleaned, the area of the electromagnet does not need to be fully utilized in the adsorption process, although the alternate times are increased, the phenomenon that the metal adsorbed to the periphery of the electromagnet is shaken to fall due to insufficient adsorption force is avoided, the adsorption effect is better, the adsorption efficiency is improved, and after the metal is placed in a collection box, the metal containing iron, cobalt and nickel can be washed, the waste residue at the periphery is washed away, and the metal containing iron, cobalt and nickel can be better separated from the waste residue.

Specifically, the spraying device described in this embodiment is composed of a horizontal rod 29 and a plurality of nozzles 30, the plurality of nozzles are fixedly installed at the bottom end of the horizontal rod 29, and the plurality of nozzles 30 are connected with the water storage device through a pipeline. Carry the water through water storage device in the pipeline, the rethread nozzle blowout is washd the metal waste periphery that contains iron cobalt nickel, washs the waste residue, and the better metal waste to containing iron cobalt nickel retrieves.

Specifically, collection box 10 top fixed mounting sewage filter equipment 31 of this embodiment, the one end of delivery pipe and sewage filter equipment 31's top fixed connection, one side bottom fixed connection connecting pipe of sewage filter equipment 31, the one end and the spray set of connecting pipe are connected. Through the filtration to sewage, can discharge comparatively clean water to spray set in, carry out used repeatedly, reduce the waste of water resource, also avoid the polluted environment simultaneously.

Furthermore, in the embodiment, a guide groove 32 is formed in each of the inner wall of one side of the first frame 13 and the inner wall of one side of the second frame 15, a guide block 33 is fittingly arranged in each guide groove 32, and each guide block 33 is fixedly connected with the electromagnet 19. Through the cooperation of guide way 32 and guide block 33, the electro-magnet atress is more stable in the removal, and the effect is better in the use.

Furthermore, the inner wall of the front end of the box body 1 is fixedly provided with a sloping plate 34, and the sloping plate 34 is positioned above the wire wheel. Through the protection of swash plate 34, can avoid kibbling construction waste to cause the damage to the line wheel, prolong the life of line wheel.

Furthermore, the front end of the connecting plate in this embodiment is an arc-shaped structure. The front end of the connecting plate is of an arc-shaped structure, so that the connecting plate can move more smoothly in the folding process, and the folding effect is better.

Furthermore, in this embodiment, a through hole 35 is formed in the inner wall of the top end of one side of the box body 1, a fan is fixedly installed in the through hole, a dust settling device is fixedly installed on the outer wall of one side of the box body 1, and the through hole 35 is communicated with the inside of the dust settling device. The fan inhales the dust that building waste produced at crushing in-process in the dust deposits the device, deposits the dust, avoids the dust to fly out the box, causes the pollution to the air.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a concrete waste recovery device for civil engineering which characterized in that: comprises a box body (1), a feed inlet (2) is arranged at the top end of the box body (1), a discharge outlet is arranged at the bottom end of the box body (1), two crushing rollers (3) with motors are movably arranged between the inner walls of the front end and the rear end of the box body (1), the two crushing rollers (3) are meshed and matched, a supporting plate (4) is hinged and arranged on the inner wall of the rear end of the box body (1), the supporting plate (4) is positioned below the crushing rollers (3), a groove (5) is arranged at the front end of the supporting plate (4), the inner walls of the two sides of the groove (5) are communicated with the outside, an electric telescopic rod (6) is fixedly arranged on the inner wall of the rear end of the groove (5), the extending direction of the electric telescopic rod (6) faces to the front, a connecting plate (7) is fixedly arranged on the front end of a movable rod of the electric telescopic rod (6), a wire wheel (8) with a motor is movably arranged on the inner wall of the front end of a box body (1), one end of the wire wheel (8) is fixedly connected with one end of a connecting rope, the other end of the connecting rope is fixedly connected with the front end of the top surface of a connecting plate (7), first openings (9) are respectively arranged on two sides of the box body (1), the first openings (9) are positioned between a crushing roller and a supporting plate (4), collecting boxes (10) are respectively fixedly arranged on two sides of the box body (1), second openings are arranged at the tops of opposite ends of the two collecting boxes (10), the second openings and the first openings are positioned on the same horizontal plane, the second openings are communicated with the inside of the first openings, a placing groove (11) is arranged on the inner wall of the rear end of one collecting box (10), a lead screw (12) with the motor is movably arranged between the inner walls of two sides of the placing groove (11), a nut is matched and is arranged, the nut is positioned on one side of a first frame (13), the height of the first frame (13) is greater than that of the placing groove (11), a connecting block (14) is fixedly installed on the other side of the first frame (13), a cavity is formed in the connecting block (14), a second frame (15) is fixedly installed on one side of the connecting block (14), the second frame (15) can penetrate through the first opening and the second opening and is inserted into another collecting box (10), opposite ends of the first frame (13) and the second frame (15) are respectively provided with a first through groove (16), inner walls of two sides of the cavity are respectively provided with a second through groove, the second through grooves are communicated with the inside of the first through groove (16), two screw rods (17) are movably installed between inner walls of the front end and the rear end of the cavity, the two screw rods (17) are respectively positioned on two sides of the cavity, a connecting block (18) is arranged in the cavity in a matched mode, and screw holes are formed in the rear, each screw rod (17) can penetrate through a corresponding screw hole, electromagnets (19) are fixedly mounted at the back of each other end of each connecting block (18), the electromagnets (19) are respectively positioned in the first frame (13) and the second frame (15), a sliding groove (20) is formed in the inner wall of the bottom end of the cavity, a reciprocating lead screw (21) with a motor is movably mounted between the inner walls of the two sides of the sliding groove (20), a nut is arranged on the reciprocating lead screw (21) in a matched mode, a double-shaft motor (22) is fixedly mounted at the top end of the nut, the width of the double-shaft motor (22) is larger than that of the sliding groove (20), a first bevel gear (23) is fixedly mounted at the end of an output shaft of the double-shaft motor (22), a second bevel gear (24) is fixedly mounted at the rear end of each screw rod (17), one first bevel gear (23) can be meshed and matched with the corresponding second bevel, spray set is located the below of electro-magnet (19), sliding tray (25) are seted up respectively to the both sides inner wall of collecting box (10), sliding tray (25) are located spray set's below, the front end of sliding tray communicates with each other with the external world, the sliding tray fit in is equipped with two sliding blocks (26), be located through filter screen (27) fixed connection between four sliding blocks (26) in same collection box (10), the window is seted up to the front end of collecting box (10), articulated installation end cover (28) on the window, the bottom joint discharge pipe of collecting box (10), the delivery pipe communicates with each other with collection box (10) inside.

2. The concrete waste recycling device for civil engineering as claimed in claim 1, wherein: the spraying device consists of a horizontal rod (29) and a plurality of nozzles (30), the nozzles are fixedly arranged at the bottom end of the horizontal rod (29), and the nozzles (30) are connected with a water storage device through a pipeline.

3. The concrete waste recycling device for civil engineering as claimed in claim 1, wherein: collect box (10) top fixed mounting sewage filter equipment (31), the one end of delivery pipe and the top fixed connection of sewage filter equipment (31), one side bottom fixed connection connecting pipe of sewage filter equipment (31), the one end and the spray set of connecting pipe are connected.

4. The concrete waste recycling device for civil engineering as claimed in claim 1, wherein: and guide grooves (32) are respectively formed in the inner wall of one side of the first frame (13) and the inner wall of one side of the second frame (15), guide blocks (33) are arranged in the guide grooves (32) in a matched mode, and the guide blocks (33) are fixedly connected with the electromagnet (19).

5. The concrete waste recycling device for civil engineering as claimed in claim 1, wherein: an inclined plate (34) is fixedly arranged on the inner wall of the front end of the box body (1), and the inclined plate (34) is positioned above the wire wheel.

6. The concrete waste recycling device for civil engineering as claimed in claim 1, wherein: the front end of the connecting plate is of an arc-shaped structure.

7. The concrete waste recycling device for civil engineering as claimed in claim 1, wherein: the dust precipitator is characterized in that a through hole (35) is formed in the inner wall of the top end of one side of the box body (1), a fan is fixedly installed in the through hole, a dust precipitation device is fixedly installed on the outer wall of one side of the box body (1), and the through hole (35) is communicated with the interior of the dust precipitation device.