CN111185384B

CN111185384B - Screening machine for construction waste

Info

Publication number: CN111185384B
Application number: CN202010044998.0A
Authority: CN
Inventors: 黄跃庭; 刘林俐; 吴厚花
Original assignee: Xiamen Lijieyuan Construction Waste Soil Resource Recycling Disposal Co ltd; Xiamen Junxingfu Industry Co ltd
Current assignee: Xiamen Lijieyuan Construction Waste Soil Resource Recycling Disposal Co ltd; Xiamen Junxingfu Industry Co ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2021-03-19
Anticipated expiration: 2040-01-15
Also published as: CN111185384A

Abstract

The invention relates to a screening machine for construction waste, which belongs to the technical field of construction waste classification and comprises the following components: a machine platform arranged on the frame; a screening box arranged on the machine platform; and a screening device disposed in the screening box, wherein the screening device includes: the air screen assembly is arranged in the screening box and used for screening gravel; the screen shaking component is arranged in the screening box and used for screening the sand; the crushing assembly is arranged in the screening box and is used for crushing the concrete blocks; the separation component is arranged in the screening box and is used for separating the iron waste; and the collecting assembly is arranged at the bottom of the screening box and is used for bearing the construction waste separated from the air screen assembly, the screen shaking assembly, the crushing assembly and the separating assembly. The invention aims to provide a construction waste screening machine which can effectively screen and classify construction waste and can effectively collect recyclable materials when the construction waste is classified.

Description

Screening machine for construction waste

Technical Field

The invention relates to the technical field of building waste classification, in particular to a screening machine for building waste.

Background

Along with the acceleration of the urbanization process, the construction industry is rapidly developing at the same time, and along with the increase of the generated construction wastes, the construction wastes refer to dregs, spoil, waste materials, sludge and other wastes generated in the process of constructing, laying or dismantling and repairing various buildings, structures, pipe networks and the like by construction units or individuals, wherein the construction wastes are also mixed with a large amount of concrete and steel bar mixtures.

At present, most of the measures for building garbage in cities are landfill measures, so that the building garbage is subjected to landfill treatment.

However, most of the wastes in the construction waste can be reused as renewable resources after being sorted, removed or crushed, and the metals such as waste steel bars, waste iron wires, waste electric wires and various waste steel fittings can be processed into steel products with various specifications after being sorted, collected and recycled. If only adopt simple and easy landfill, both caused the too big, made partial recyclable's building rubbish not retrieved thereby causing the waste again, moreover, present building rubbish treatment facility can not screen completely, and the material of different specifications is in the same place, has wasted a large amount of energy, and when equipment operation, easily causes building rubbish dust pollution, and the feature of environmental protection is relatively poor.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a screening machine for construction waste, which can effectively screen and classify the construction waste and can effectively collect recyclable materials when the construction waste is classified.

The above object of the present invention is achieved by the following technical solutions:

a sieve separator for construction waste includes: a machine platform arranged on the frame; the screening box is arranged on the machine table; the feeding port is arranged at the top of the screening box; and a screening device disposed in the screening box, wherein the screening device includes: the air screen assembly is arranged in the screening box and used for screening gravel of the construction waste; the screen shaking component is arranged in the screening box, is positioned behind the air screen component and is used for screening sand and stone of the construction waste screened by the air screen component; the crushing assembly is arranged in the screening box, is positioned behind the screen shaking assembly and is used for crushing concrete blocks of the construction waste screened by the screen shaking assembly; the separating assembly is arranged in the screening box, is positioned behind the crushing assembly and is used for separating the steel bar and iron waste which is crushed by the crushing assembly and mixed in the concrete block; and the collecting assembly is arranged at the bottom of the screening box and is used for bearing the construction waste separated from the air screen assembly, the screen shaking assembly, the crushing assembly and the separating assembly.

By adopting the arrangement, the machine table arranged on the rack can be used as a workbench of a worker, the feeding port can facilitate the worker to input the construction waste into the screening box, and the screening assembly arranged in the screening box can effectively separate and screen the construction waste, so that different construction wastes can be separated, wherein the air screen assembly can effectively separate gravel from the construction waste; the shaking screen assembly can effectively separate sand from the construction waste; the crushing assembly can effectively separate concrete blocks and reinforcing steel bars from the construction waste; the separating assembly can effectively separate the reinforcing steel bars and the concrete blocks, and can effectively separate and collect various construction wastes through the collecting assembly, so that subsequent work is facilitated.

The invention further provides that the air screen assembly comprises: an opening provided at one side of the screening box; the air box is arranged on the machine table; one end of the air supply pipe is connected with the opening, and the other end of the air supply pipe is connected with the output end of the air box; the fixed plate is arranged on the opening, and a plurality of air outlet grooves are formed in the plate body; the rotating rod is horizontally and rotatably connected to the fixed plate; the first inclined plate is fixed with the rotating rod and is positioned at the bottom of the feeding port; the driving piece is arranged on the side wall of the screening box and used for driving the first inclined plate to rotate; the conveying belt is arranged in the screening box, two ends of the conveying belt are connected with the side wall of the screening box, is positioned at one end of the first inclined plate, which is far away from the air box, and is obliquely conveyed upwards; the baffle is arranged between two side walls of the screening box and is positioned at the input end of the conveyor belt; and the sand discharge channel is arranged on the fixed plate and positioned at the bottoms of the first inclined plate and the conveying belt.

Through adopting the above-mentioned setting, the wind-force of bellows is inputed to the screening incasement from the opening part along the blast pipe, the fixed plate can be when wind-force gets into the screening incasement, avoid building waste to fall into and cause danger in the bellows, first swash plate can bear building waste, and then can make the building waste who falls into in first swash plate input to the conveyer belt through the driving piece, and wind-force then can blow in the sand discharge way with the grit that spills in first swash plate department, and then make the grit fall into and collect in the subassembly.

The invention further provides that the shaker assembly comprises: a rotating rod arranged between the two side walls of the screening box; the sieve plate is arranged between two side walls of the screening box, the plate body is fixed with the rotating rod, and the top wall of the plate body is provided with a plurality of through grooves; the bent grooves are formed in two side walls of the sieve plate; two fixed blocks fixed on two side walls of the screening box and respectively positioned in the curved groove; and the vibrating piece is arranged at the bottom of the sieve plate and used for driving the sieve plate to vibrate.

Through adopting above-mentioned setting, follow the great construction waste material of conveyer belt transmission to on the sieve, can beat the sieve through beating the piece that shakes for the sieve is round the dwang shake of making a round trip, can enough make construction waste material move on the sieve, thereby also can make partial grit can shake off from offering the sieve that runs through the groove through shaking, thereby get into and effectively collect in the collection subassembly.

The invention is further provided that the vibration striking member comprises: the mounting seat is arranged on the inner wall of the screening box and positioned at the bottom of the screen plate; the first motor is fixed on the mounting seat; a first gear fitted on the first motor output shaft; the first screw rod is rotatably connected with the side wall of the screening box at one end and is assembled with the output shaft of the first motor at the other end; the two ends of the second screw rod are rotatably connected with the side wall of the screening box, are positioned on the same horizontal line with the first screw rod, and have opposite threads with the first screw rod; the second gear is fixed on the second screw rod body and meshed with the first gear; the moving block is in threaded connection with the first lead screw and the second lead screw; the second motor is arranged at the top of the moving block; a rotary disk fitted at an output shaft of the second motor; the eccentric round block is fixed at the non-center of the rotating plate and is arranged on the side opposite to the second motor; the assembling block is arranged at the top of the moving block; the strip body is provided with a line groove for the eccentric round block to move, and the strip body is rotatably connected with the assembling block; and the vibration knocking hammer is arranged at one end of the vibration knocking strip close to the fixed block.

Through adopting above-mentioned setting, first motor can drive first gear and first lead screw and rotate and do the rotation in same direction, and it has the second gear to mesh mutually with first gear, make second gear and second lead screw can do the rotation opposite with first motor, and the screw thread of first lead screw and second lead screw is opposite, the motion is opposite, then the movable block on threaded connection first lead screw and the second lead screw can make the displacement on the lead screw, and the second motor that loads on the movable block rotates, make the rolling disc rotate, thereby make eccentric circle piece can drive the swing from top to bottom of knocking the strip of rotating connection on the assembly piece, thereby make the hammer of knocking on knocking the strip of shaking can do the action of knocking the sieve, thereby effectively drive the sieve shake, sieve the grit.

The invention further provides that the shredding assembly comprises: the second inclined plate is arranged between the two side walls of the screening box and positioned at one end of the screening plate, which is far away from the conveyor belt, and the position of the input end of the second inclined plate is higher than that of the output end of the second inclined plate; a plurality of conveying rollers horizontally and rotatably arranged on the second inclined plate; the bearing plate is hinged at the output end of the second inclined plate; the crusher is arranged between the two side walls of the screening box and is used for crushing concrete blocks; and the adjusting piece is arranged at the bottom of the bearing plate and used for driving the bearing plate to rotate.

Through adopting the above-mentioned setting, thereby the construction waste material after the sieve screening can be along with the make and go round trip shake of sieve can get into the second swash plate by the sieve, then follow the second swash plate under the supplementary conveying of transfer roller, enter into the loading board position, and then smash the operation through smashing the piece to construction waste material, and the rethread adjusts the adjusting part, and the drive loading board is adjusted.

The invention further provides that the adjusting part comprises: a vertical plate between two side walls of the screening box; the mounting platform is arranged on the vertical plate and close to one side surface of the pulverizer; the sliding chute is horizontally arranged on the mounting table; the sliding block is connected in the sliding groove in a sliding manner; the oil hydraulic cylinder is arranged on the mounting table, and the output end of the oil hydraulic cylinder is connected with the side wall of the sliding block; and the supporting frame is rotatably connected with one end of the top of the sliding block, and the other end of the supporting frame is fixed to the bottom surface of the bearing plate.

Through adopting above-mentioned setting, linear motion can be made along the spout to the oil hydraulic cylinder on the riser to the support frame is articulated mutually with the slider, and the removal of slider can make the loading board do the rotation round the second swash plate, makes construction waste can fall into to collect the subassembly, thereby makes to collect the subassembly and collect construction waste on the loading board.

The invention further provides that the separation assembly comprises: the roller is arranged on the side wall of the screening box far away from the air screen assembly, positioned on one end face of the bearing plate far away from the second inclined plate and electrically connected with the power source; and the electromagnets are arranged on the roller and positioned at the four sides of the cylinder of the roller.

Through adopting above-mentioned setting, the roller rotates the drive electro-magnet, adsorbs iron raw materials such as reinforcing bar in the concrete reinforcing bar mixture after smashing via the breaker, closes the electro-magnet power after adsorbing a large amount of iron waste materials and can make the iron waste material fall into and collect the subassembly, collects building material effectively.

The invention further provides that the collecting assembly comprises: the box body is arranged on the rack and positioned at the bottom of the screening box; a gravel bearing box which is arranged in the box body and is positioned at the port of the sand discharge passage; a sand bearing box arranged in the box body and positioned at the bottom of the sieve plate; a concrete block bearing box arranged in the box body and positioned at the bottom of the bearing plate; and the iron material bearing box is arranged in the box body and is positioned at the bottom of the electromagnet.

Through adopting above-mentioned setting, the separation is provided with four bearing boxes in the box for bear the weight of the construction waste of the different types that sieve from the screening subassembly, make the collection comparatively effective convenient, can not the chaotic collection.

The invention is further provided with discharge ports which are arranged at the side wall of the box body and at the bottom ends of the gravel bearing box, the concrete block bearing box and the iron material bearing box, a discharge chute is arranged at the discharge port, and a sealing plate is arranged at the side wall of the box body and at the top end of the discharge port.

Through adopting above-mentioned setting, make things convenient for construction waste to discharge from grit bearing box, concrete piece bearing box and iron material bearing box, effectively make things convenient for the staff to the processing of follow-up work, can make the staff freely control simultaneously and arrange material speed, make things convenient for staff's work.

The invention is further provided with an air outlet arranged at the position of the screening box close to one side wall of the separation component, an air curtain machine is arranged at the top of the air outlet, and a water tank is arranged at the bottom of the air outlet.

Through adopting above-mentioned setting, the wind-force that blows off from bellows can be adjusted by the wind that the air curtain machine blew off behind taking away some comparatively tiny building waste, and the smoke and dust of this section process of screening machine screening waste material can be avoided too big via the basin of the bottom setting of gas vent for the smoke and dust can be blown in the basin by the wind wall of air curtain machine and deposit.

In conclusion, the invention has the following beneficial effects:

the air screen assembly of the present invention can effectively separate gravel from construction waste; the shaking screen assembly can effectively separate sand from the construction waste; the crushing assembly can effectively separate concrete blocks and reinforcing steel bars from the construction waste; the separating assembly can effectively separate the reinforcing steel bars and the concrete blocks, and the collecting assembly can effectively separate and collect various construction wastes.

Drawings

FIG. 1 is a schematic view of the overall structure in an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional structural view in an embodiment of the present invention;

FIG. 3 is a schematic view of an air screen assembly in an embodiment of the present invention;

FIG. 4 is a schematic view of a shaker assembly in an embodiment of the present disclosure;

figure 5 is a schematic view of a size reduction assembly and a separation assembly in an embodiment of the present invention.

Reference numerals: 1. a frame; 2. a machine platform; 21. a screening box; 22. a feeding port; 23. an exhaust port; 24. an air curtain machine; 25. a water tank; 31. an air box; 32. an air supply pipe; 331. an air outlet groove; 33. a fixing plate; 332. a rotating rod; 34. a first sloping plate; 35. a conveyor belt; 36. a baffle plate; 37. a sand discharge channel; 41. rotating the rod; 42. a sieve plate; 43. bending a groove; 44. a fixed block; 451. a mounting seat; 452. a first motor; 453. a first gear; 454. a first lead screw; 455. a second lead screw; 456. a second gear; 457. a moving block; 458. a second motor; 4581. rotating the disc; 4582. an eccentric round block; 4583. assembling the block; 4584. a vibration strip; 4585. a knocking hammer; 51. a second swash plate; 52. a conveying roller; 53. a carrier plate; 54. a pulverizer; 551. a vertical plate; 552. an installation table; 553. a slider; 554. an oil hydraulic cylinder; 555. a support frame; 556. a chute; 61. a roller; 62. an electromagnet; 71. a box body; 72. a gravel carrier box; 73. a sandstone bearing box; 74. a concrete block carrying case; 75. an iron material carrying box; 76. a discharge port; 77. a discharge chute; 78. and (7) sealing the plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In this embodiment:

a construction waste screening machine is shown in figures 1 and 2 and comprises a frame 1, a machine table 2 and a screening box 21.

Be provided with board 2 through threaded connection in frame 1, board 2 can supply the staff to carry out work steps such as blowing, clearance as the supporting body, and the bottom frame position department of frame 1 pastes and is equipped with the sheet rubber in addition, and the frame foot of frame 1 adopts chemical bolt to fix with work ground for frame 1 can be comparatively firmly fixed subaerial.

Meanwhile, the top surface of the machine table 2 is provided with a mounting port, the mounting port is internally provided with a screening box 21, the screening box 21 and the machine table 2 are fixed through a plurality of reinforcing bolts, the screening box 21 can be firmly fixed on the machine table 2, the top position of the screening box 21 is provided with a feeding port 22 for building garbage to enter, wherein, a side wall position of the screening box 21 is provided with an exhaust port 23 penetrating through the screening box 21, the top position of the exhaust port 23 is provided with an air curtain machine 24, the air outlet direction of the air curtain machine 24 is blown from top to bottom, the bottom position of the exhaust port 23 is provided with a water tank 25, and more importantly, the screening box 21 is internally provided with a screening device capable of performing multiple screening separation on the building garbage.

In this embodiment, this sieving mechanism includes wind sieve subassembly, trembles sieve subassembly, crushing subassembly, separation element and collection subassembly.

As shown in fig. 3, the air screen assembly is arranged in the screening box 21 and can primarily separate and screen gravel with small volume and light weight, and comprises an air box 31, a fixed plate 33, a first inclined plate 34, a conveyor belt 35 and a sand discharge channel 37.

An opening is opened at a side of the screening box 21 far from the exhaust port 23, an air supply pipe 32 is connected to the opening, and the air supply pipe 32 is connected to the air box 31 at a non-opening connection end, wherein the air box 31 is fixed at a top surface position of the machine table 2, and the air supply pipe 32 is hermetically connected to the opening position, thereby ensuring that the wind energy blown out from the air box 31 can enter the screening box 21.

Secondly, install fixed plate 33 on the opening, seted up many air-out grooves 331 on the plate body of this fixed plate 33 for the wind that exports from bellows 31 can enter into screening case 21 through air-out grooves 331, and this fixed plate 33 can also avoid the building rubbish that falls down from pan feeding mouth 22 can not enter into air supply pipe 32, has ensured the security of bellows 31.

Meanwhile, a rotating rod 332 is horizontally and rotatably connected to the fixed plate 33, a tripod is adopted between the rotating rod 332 and the fixed plate 33 for fixing, a first inclined plate 34 is fixed on the rotating rod 332, the first inclined plate 34 is just located at the bottom of the feeding port 22, and construction waste falling from the feeding port 22 can fall from the first inclined plate 34, so that gravel can fall from a gap between the rotating rod 332 and the fixed plate 33, and accordingly the gravel with small volume and light weight is screened out.

A driving member is disposed on the side wall of the screening box 21, in this embodiment, the driving member includes a first bevel gear fixed to the rotating rod, so that the first bevel gear can be rotatably connected to the outer wall of the screening box 21, a driving motor is disposed on the outer wall of the screening box 21, the driving motor is a servo motor, a second bevel gear engaged with the first bevel gear is mounted on an output shaft of the driving motor, so that the driving motor can drive the rotating rod 332 to rotate, so as to drive the first inclined plate 34 to move, a conveyor belt 35 is disposed in the screening box 21, both ends of the conveyor belt 35 are connected to the side wall of the screening box 21, and a transmission position of the conveyor belt 35 is an inclined upward transmission position, the conveyor belt 35 is disposed at a position where the first inclined plate 34 is far away from the air box 31, a baffle 36 is disposed between the two side walls of the screening box 21, the baffle 36 is located at an input end of the conveyor belt 35, also, a sand discharge passage 37 is provided at a bottom position on the fixed plate 33, and the sand discharge passage 37 is located at the bottom of the first inclined plate 34 and the conveyor belt 35.

When the driving motor drives the rotating rod 332 to rotate, the construction waste falling into the first inclined plate 34 from the feeding port 22 can enter the conveyor belt 35 blocked by the baffle 36, and the relatively fine gravel falls into the sand discharge channel 37 and is carried away by the wind of the wind box 31.

Meanwhile, in this embodiment, as shown in fig. 4, a screen shaking assembly is disposed in the screening box 21, sand can be screened by the screen shaking assembly, and the screen shaking assembly includes a screen plate 42 and a vibrating piece capable of knocking the screen plate 42.

Wherein, be provided with two bearing bodies that are in same horizontal direction between the both sides wall of screening case 21, horizontal connection can rely on bearing body pivoted dwang 41 on two bearing bodies, and, be provided with sieve 42 between the both sides wall of screening case 21, the plate body of this sieve 42 is fixed mutually with dwang 41, and the plate body roof has seted up a plurality of through grooves, and, the both sides wall department of this sieve 42 has seted up towards the inside sunken curved groove 43 of sieve 42, and simultaneously, still be fixed with on the both sides wall of screening case 21 with curved groove 43 assorted two fixed blocks 44, this fixed block 44 then is respectively in the inside of curved groove 43, in addition, be provided with the piece of shaking that can drive sieve 42 shake in the bottom of sieve 42, can make sieve 42 make round the round trip movement of dwang 41 through the piece of shaking.

Moreover, the rapping element comprises a mounting base 451, a first motor 452, a first lead screw 454, a moving block 457, a second motor 458, a rapping bar 4584 and a rapping hammer 4585.

The installation base 451 is installed on one side of the inner wall of the screening box 21, the installation base 451 is located at the bottom position of the screening plate 42, meanwhile, the first motor 452 is fixed on the installation base 451, the first gear 453 is installed on the output shaft of the first motor 452, the first lead screw 454 is installed on the output shaft of the first motor 452, and the end of the first lead screw 454, which is not connected with the first motor 452, is rotatably connected on the side wall of the screening box 21.

In addition, a second lead screw 455 is rotatably connected to both side walls of the screening box 21, the second lead screw 455 and the first lead screw 454 are on the same horizontal line, and the thread of the second lead screw 455 is opposite to the thread of the first lead screw 454, and then a second gear 456 engaged with the first gear 453 is fixed to the rod body of the second lead screw 455, and a moving block 457 is connected to the first lead screw 454 and the second lead screw 455, and a through hole having a thread matching with the first lead screw 454 and the second lead screw 455 is provided on the block body of the moving block 457, and the first lead screw 454 and the second lead screw 455 penetrate through the through hole so that the moving block 457 can displace on the lead screw body along with the rotation of the first lead screw 454 and the second lead screw 455.

The second motor 458 is mounted at the top of the moving block 457, the rotating disc 4581 is mounted at the output shaft of the second motor 458, the eccentric round block 4582 is fixed at the non-center position of the plate surface of the rotating disc 4581, the mounting block 4583 is arranged at the top of the moving block 457, the vibration striking bar 4584 is rotatably connected to the mounting block 4583, a line groove for the eccentric round block 4582 to insert and move is formed at the bar body position of the vibration striking bar 4584, and the vibration striking hammer 4585 is mounted at one end of the vibration striking bar 4584 close to the fixed block 44.

In the present embodiment, as shown in fig. 5, a crushing unit capable of crushing concrete blocks is provided in the screen box 21. Wherein the crushing assembly comprises a second inclined plate 51, a crusher 54 and an adjusting piece.

In this embodiment, the second inclined plate 51 is disposed between two side walls of the screening box 21, and at the same time, the input end position of the second inclined plate 51 is higher than the output end position, and a plurality of conveying rollers 52 are horizontally and rotatably disposed on the second inclined plate 51, a bearing plate 53 is hinged to the output end position of the second inclined plate 51, and is located at a position just above the bearing plate 53, a crusher 54 capable of crushing concrete blocks is disposed between two side walls of the screening box 21, and an adjusting member capable of driving the bearing plate 53 to rotate is disposed at the bottom of the bearing plate 53, and the crusher 54 is driven by a power mechanism, so that the concrete blocks can be vibrated and crushed, concrete and steel bars of the concrete blocks can be separated, and concrete materials and iron wastes can be screened out.

In the present embodiment, the adjusting member includes a vertical plate 551 disposed between two side walls of the screening box 21, a mounting platform 552 is disposed on one side surface of the vertical plate 551 close to the crusher 54, a sliding groove 556 is horizontally disposed on the mounting platform 552, wherein a sliding block 553 is slidably connected in the sliding groove 556, an oil hydraulic cylinder 554 having an output end connected with the side wall of the sliding block 553 is disposed on the mounting platform 552, a support 555 is fixedly disposed on the bottom surface of the bearing plate 53, the support 555 is a triangular support, and one end of the support 555 far away from the bearing plate 53 is rotatably connected with the top of the sliding block 553.

In the present embodiment, a separating unit capable of separating the ferrous scrap and the concrete scrap is provided inside the screen box 21, and the separating unit includes a roller 61 and an electromagnet 62. Be provided with roller 61 near the lateral wall department level of gas vent 23 at screening case 21, this roller 61 carries out electric connection with the power supply electrical property, the power supply is for rotating the motor, can drive roller 61 through rotating the motor and rotate, and, be provided with four electro-magnets 62 that are located the four sides department of roller 61 barrel on roller 61, electro-magnet 62 can adsorb the iron waste material when circular telegram, the rotation through roller 61 makes electro-magnet 62 can the multiaspect adsorb, the iron building rubbish of electro-magnet 62 absorption can fall into and collect in the collection subassembly after the outage again.

Secondly, be provided with the collection subassembly that can bear the weight of the building rubbish that separates from wind sieve subassembly, tremble sieve subassembly, crushing unit, separator element and collect in the bottom position department of screening case 21.

In this embodiment, the collection assembly includes a box 71, and a gravel carrier box 72, a gravel carrier box 73, a concrete block carrier box 74, and an iron carrier box 75 disposed within the box 71.

This box 71 sets up in frame 1 and just is located the bottom position of screening case 21, and grit bearing box 72, grit bearing box 73, concrete piece bearing box 74 and iron material bearing box 75 wherein then are respectively to installing the bottom that is located the wind sieve subassembly, trembles sieve subassembly, crushing unit, separating unit in box 71 for accept the waste material that corresponds, can carry out effectual separation collection to building rubbish effectively.

In addition, discharge ports 76 are formed in the side walls of the box body 71 and at the bottom positions of the gravel bearing box 72, the gravel bearing box 73, the concrete block bearing box 74 and the iron material bearing box 75, a discharge chute 77 is installed at the discharge port 76, a sealing plate 78 is detachably installed at the side walls of the box body 71 and at the top position of the discharge port 76, the sealing plate 78 is used for sealing the discharge port 76, and the bottom positions of the gravel bearing box 72, the gravel bearing box 73, the concrete block bearing box 74 and the iron material bearing box 75 are inclined towards the direction of the discharge port 76, so that construction waste can be discharged effectively and conveniently.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment as necessary without making a contribution thereto after reading the present specification, but all are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a sieve separator for construction waste which characterized in that includes:

a machine table (2) arranged on the frame (1);

a screening box (21) arranged on the machine table (2);

a feeding port (22) arranged at the top of the screening box (21);

and a screening device arranged in the screening box (21),

wherein, the sieving mechanism includes: set up in screening case (21), be used for carrying out the air screen assembly of gravel screening to construction waste, the air screen assembly includes: an opening provided at one side of the screening box (21); an air box (31) arranged on the machine table (2); an air supply pipe (32) with one end connected with the opening and the other end connected with the output end of the air box (31); a fixing plate (33) which is arranged on the opening and provided with a plurality of air outlet grooves (331) on the plate body; a rotating rod (332) horizontally and rotatably connected to the fixed plate (33); the first inclined plate (34) is fixed with the rotating rod (332) and is positioned at the bottom of the feeding port (22); the driving piece is arranged on the side wall of the screening box (21) and is used for driving the first inclined plate (34) to rotate; the conveying belt (35) is arranged in the screening box (21), two ends of the conveying belt are connected with the side wall of the screening box (21), is positioned at one end of the first inclined plate (34) far away from the air box (31), and is obliquely conveyed upwards; the baffle (36) is arranged between two side walls of the screening box (21) and is positioned at the input end of the conveyor belt (35); and a sand discharge channel (37) arranged on the fixed plate (33) and positioned at the bottom of the first inclined plate (34) and the conveyor belt (35);

set up in screening case (21), be located behind the wind sieve subassembly, be used for carrying out the tremble sieve subassembly of grit screening to the building rubbish after the screening of wind sieve subassembly, tremble the sieve subassembly and include: a rotating rod (41) arranged between two side walls of the screening box (21); the sieve plates (42) are arranged between two side walls of the screening box (21), the plate bodies are fixed with the rotating rod (41), and the top walls of the plate bodies are provided with a plurality of through grooves; bent grooves (43) formed in two side walls of the sieve plate (42); two fixed blocks (44) which are fixed on two side walls of the screening box (21) and are respectively positioned in the bent groove (43); and a vibration beating piece which is arranged at the bottom of the sieve plate (42) and is used for driving the sieve plate (42) to shake,

wherein, the piece of shaking includes: a mounting seat (451) arranged on the inner wall of the screening box (21) and positioned at the bottom of the screen plate (42); a first motor (452) fixed to the mount (451); a first gear (453) fitted on an output shaft of the first motor (452); a first screw rod (454) with one end rotatably connected with the side wall of the screening box (21) and the other end assembled with the output shaft of the first motor (452); the two ends of the second screw rod (455) are rotatably connected with the side wall of the screening box (21), are positioned on the same horizontal line with the first screw rod (454), and have opposite threads to the first screw rod (454); a second gear (456) fixed to the rod body of the second lead screw (455) and engaged with the first gear (453); a moving block (457) screwed on the first lead screw (454) and the second lead screw (455); a second motor (458) mounted at a top position of the moving block (457); a rotating disk (4581) fitted at an output shaft of the second motor (458); an eccentric round block (4582) fixed at a non-center of the rotating disk (4581) and on the opposite side of the second motor (458); a fitting block (4583) provided on the top of the moving block (457); the strip body is provided with a line groove for the eccentric round block (4582) to move, and the strip body is rotationally connected with the assembling block (4583) to form a vibration beating strip (4584); and a tapping hammer (4585) mounted at one end of the tapping bar (4584) near the fixed block (44);

the crushing assembly is arranged in the screening box (21), is positioned behind the screen shaking assembly and is used for crushing concrete blocks of the construction waste screened by the screen shaking assembly;

the separating component is arranged in the screening box (21), is positioned behind the crushing component and is used for separating the steel bar and iron waste mixed in the concrete block after being crushed by the crushing component;

and the collecting assembly is arranged at the bottom of the screening box (21) and is used for bearing the construction waste separated from the air screen assembly, the screen shaking assembly, the crushing assembly and the separating assembly.

2. The construction waste screening machine as claimed in claim 1, wherein said shredding assembly comprises: the second inclined plate (51) is arranged between two side walls of the screening box (21), is positioned at one end of the screening plate (42) far away from the conveyor belt (35), and has the input end position higher than the output end position; a plurality of conveying rollers (52) horizontally rotatably provided on the second inclined plate (51); a bearing plate (53) hinged at the position of the output end of the second sloping plate (51); a crusher (54) arranged between both side walls of the screening box (21) and crushing the concrete blocks; and the adjusting piece is arranged at the bottom of the bearing plate (53) and used for driving the bearing plate (53) to rotate.

3. The construction waste screening machine of claim 2, wherein the adjustment member comprises: risers (551) between two side walls of the screening box (21); a mounting table (552) provided on the vertical plate (551) near one side of the crusher (54); a chute (556) horizontally disposed on the mounting table (552); a slide block (553) connected in the sliding groove (556) in a sliding way; an oil hydraulic cylinder (554) which is arranged on the mounting table (552) and the output end of which is connected with the side wall of the slide block (553); and the supporting frame (555) is rotatably connected with the top of the sliding block (553) at one end, and the other end of the supporting frame is fixed with the bottom surface of the bearing plate (53).

4. The construction waste screening machine of claim 1, wherein the separation assembly comprises: the roller (61) is arranged on the side wall of the screening box (21) far away from the air screen assembly, is positioned on one end face of the bearing plate (53) far away from the second inclined plate (51), and is electrically connected with a power source; and electromagnets (62) arranged on the roller (61) and positioned at the four sides of the cylinder body of the roller (61).

5. The construction waste screening machine of claim 1, wherein the collection assembly comprises: the box body (71) is arranged on the rack (1) and is positioned at the bottom of the screening box (21); a gravel bearing box (72) which is arranged in the box body (71) and is positioned at the port of the sand discharge channel (37); a sand bearing box (73) arranged in the box body (71) and positioned at the bottom of the sieve plate (42); a concrete block bearing box (74) which is arranged in the box body (71) and is positioned at the bottom of the bearing plate (53); and an iron material bearing box (75) arranged in the box body (71) and positioned at the bottom of the electromagnet (62).

6. The construction waste screening machine as claimed in claim 5, wherein discharge ports (76) are formed in the side walls of the box body (71) and at the bottom ends of the gravel bearing box (72), the gravel bearing box (73), the concrete block bearing box (74) and the iron material bearing box (75), a discharge chute (77) is installed at the discharge ports (76), and a sealing plate (78) is arranged at the side walls of the box body (71) and at the top end of the discharge ports (76).

7. The construction waste screening machine according to claim 1, wherein an exhaust port (23) is formed in the screening box (21) close to one side wall of the separation assembly, an air curtain machine (24) is arranged at the top of the exhaust port (23), and a water tank (25) is arranged at the bottom of the exhaust port (23).