CN113976282A

CN113976282A - Construction waste treatment device and treatment method thereof

Info

Publication number: CN113976282A
Application number: CN202111274784.3A
Authority: CN
Inventors: 王安辉; 张艳芳; 倪娇娇; 夏凡; 柳黎鑫; 施发杰; 周天宇; 高增孝; 杨帆
Original assignee: China Construction Industrial and Energy Engineering Group Co Ltd; Zhongsheng Construction Machinery Nanjing Heavy Industry Co Ltd
Current assignee: China Construction Industrial and Energy Engineering Group Co Ltd; Zhongsheng Construction Machinery Nanjing Heavy Industry Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-01-28
Anticipated expiration: 2041-10-29
Also published as: CN113976282B

Abstract

The invention discloses a construction waste treatment device and a treatment method thereof, belonging to the technical field of waste treatment, wherein the construction waste treatment device comprises a frame body, a first crusher and a second crusher, and further comprises: the tank body is fixedly connected to the top of the frame body; the screening shafts are connected to the side wall of the frame body and are symmetrically designed, and the included angle between the two screening shafts can be adjusted through an adjusting mechanism; through setting up the screening axle that two downward sloping just have certain contained angles above first breaker and second breaker, can sieve the size of concrete piece before the breakage, then the concrete piece is broken in the breaker of the automatic different specifications that gets into of size, and crushing efficiency improves greatly, simultaneously, through the luffing motion of screening axle and the swing of eccentric wheel, still can overturn the epaxial building rubbish of screening, improves the screening quality.

Description

Construction waste treatment device and treatment method thereof

Technical Field

The invention relates to the technical field of garbage treatment, in particular to a treatment device and a treatment method for construction garbage.

Background

The construction waste is solid waste generated in the process of building, rebuilding, expanding or demolishing a building, and can be divided into construction waste and demolition construction waste according to different generation sources of the construction waste, the construction waste is the solid waste generated in a building, rebuilding or expanding project as the name suggests, the demolition construction waste is the construction waste generated in the process of demolishing and demolishing the building, the construction waste has a wide erosion effect on our living environment, and if the construction waste is in a state regardless of the state for a long time, the construction waste has adverse effects on urban environmental sanitation, living conditions, land quality assessment and the like.

Therefore, many manufacturers utilizing environment-friendly buildings often recycle the construction wastes, wherein the manufacturers often crush the concrete blocks in the construction wastes into granular aggregate, and the granular aggregate is used as a roadbed material for paving roads and is recycled to urban construction.

However, on the existing market, the processing apparatus of current building rubbish, when broken, all pour concrete block not of uniform size into the breaker together and carry out the breakage, lead to before the breakage, can't sieve the size of concrete block, then the concrete block gets into the breaker of different specifications according to the size is automatic and breaks in, leads to crushing efficiency greatly reduced.

Disclosure of Invention

The invention aims to solve the problems that the size of a concrete block cannot be screened, and then the concrete block automatically enters crushers with different specifications according to the size to be crushed, so that the crushing efficiency is greatly reduced and the like in the prior art, and provides a treatment device and a treatment method for construction waste.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a processing apparatus of building rubbish, includes support body, first breaker and second breaker, still includes: the tank body is fixedly connected to the top of the frame body; the screening shafts are connected to the side wall of the frame body and are symmetrically designed, the included angle between the two screening shafts can be adjusted through an adjusting mechanism, and the two screening shafts are both downward inclined; the first crusher and the second crusher are both positioned right below the two screening shafts, the first crusher is positioned at the lower end of the screening shafts, and the second crusher is positioned at the higher end of the screening shafts; and a conveying mechanism for conveying the aggregates crushed by the first crusher into the second crusher is arranged at the bottom of the frame body.

In order to improve the efficiency that screening axle screening building rubbish is big or small, it is preferred, the fixed case of support body lateral wall fixedly connected with, fixed case lateral wall is connected with first motor, the output fixedly connected with cam of first motor, sliding connection has the sliding plate in the fixed case, the sliding plate bottom pastes with the cam mutually, the lower one end in screening axle position is connected on the sliding plate, the support body lateral wall is equipped with the spin, the one end that the sliding plate was kept away from to the screening axle is fixed on the spin.

In order to adjust the included angle between the two screening shafts, preferably, the adjusting mechanism comprises a second motor and an adjusting plate, the second motor is fixedly connected to the side wall of the sliding plate, the output end of the second motor is connected with a bidirectional threaded rod, the adjusting plates are symmetrically designed and slide on the adjusting plates, the adjusting plates are connected with sliding bases in a sliding mode, and the lower ends of the screening shafts are connected to the sliding bases.

In order to improve the quality of screening axle screening building rubbish size, preferably, fixedly connected with third motor on the sliding bottom seat, the output and the screening axle of third motor are connected, the epaxial fixedly connected with eccentric wheel of screening.

In order to convey the aggregates crushed by the first crusher into the second crusher, preferably, the conveying mechanism comprises a conveying cylinder and a conveying belt, the conveying cylinder is fixedly connected to the bottom of the frame body, one end of the conveying cylinder is communicated with a discharge hole of the first crusher, a first rotating shaft is rotatably connected to the conveying cylinder, a helical blade is fixedly connected to the first rotating shaft, a third rotating shaft, a fourth rotating shaft and a fifth rotating shaft are respectively rotatably connected to the frame body, the fifth rotating shaft is located above a feed inlet of the second crusher, the conveying belt is connected between the third rotating shaft and the fifth rotating shaft, one end of the conveying cylinder, which is far away from the first crusher, is connected with a charging barrel, the charging barrel is located on the conveying belt, the third rotating shaft and the fourth rotating shaft are connected through a belt, a fifth gear is fixedly connected to the fourth rotating shaft, and a sixth gear connected with the fifth gear in a meshed manner is fixedly connected to one end, which extends out of the conveying cylinder, of the first rotating shaft, and a transmission mechanism for driving the first rotating shaft to rotate is arranged between the first rotating shaft and the output end of the first motor.

For the first pivot of drive rotates, it is preferred, drive mechanism includes second pivot and first gear, the second pivot is rotated and is connected at fixed case lateral wall, first gear fixed connection is at the output of first motor, second pivot top fixedly connected with and the second gear that first gear engagement is connected, second pivot bottom fixedly connected with third gear, the fourth gear that fixedly connected with and third gear engagement are connected in the first pivot.

In order to prevent dust from flying during crushing, preferably, the support body is fixedly connected with a water tank, the inner wall of the bottom of the fixed box is provided with a piston assembly, the power end of the piston assembly is connected with a sliding plate, a second pipeline is connected between the piston assembly and the water tank, the support body is connected with a spray head, the spray head is positioned above the screening shaft, a third pipeline is connected between the spray head and the piston assembly, and one-way valves are arranged in the second pipeline and the third pipeline.

In order to get rid of the remaining granule on the conveyer belt, preferably, all rotate on water tank and the support body and be connected with the guiding axle, the conveyer belt pastes with the guiding axle, in the conveyer belt passed the water tank, water tank bottom inner wall is equipped with the filter screen.

In order to improve the efficiency of getting rid of remaining granule on the conveyer belt, further, fixedly connected with brush in the water tank, the brush pastes with the conveyer belt surface mutually, the water tank lateral wall is connected with first pipeline, be equipped with the rotary switch on the first pipeline.

A method for treating construction waste comprises the following steps:

firstly, pouring construction waste on a screening shaft through a tank body; then, the construction waste rolls downwards, the construction waste with small volume firstly falls into the second crusher to be crushed through an included angle between the two screening shafts, and after the construction waste with large volume rolls for a certain distance, the construction waste falls into the first crusher along with the increase of the distance between the two screening shafts and is then crushed; secondly, after the construction waste with large volume is crushed into small size by the first crusher, the small size is automatically conveyed into the second crusher by the conveying mechanism for secondary crushing; and finally, discharging the granular aggregate through a discharge hole of the second crusher.

Compared with the prior art, the invention provides a treatment device and a treatment method for construction waste, which have the following beneficial effects:

1. according to the construction waste treatment device and the treatment method thereof, the two screening shafts which are downward inclined and have certain included angles are arranged above the first crusher and the second crusher, the concrete blocks can be screened before being crushed, then the concrete blocks automatically enter the crushers of different specifications according to the sizes to be crushed, the crushing efficiency is greatly improved, and meanwhile, the construction waste on the screening shafts can be turned over through the upward and downward swinging of the screening shafts and the swinging of the eccentric wheels, so that the screening quality is improved.

2. According to the processing device and the processing method for the construction waste, the sliding plate which drives the screening shaft to swing up and down is utilized, the piston assembly is driven at the same time, water in the water tank is sprayed out through the spray head, dust is reduced, the dust is prevented from flying in disorder, the health and safety of workers are effectively protected, meanwhile, the conveying belt penetrates through the water tank, the conveying belt can be cleaned through the water in the water tank, and the sanitation and tidiness of a work place are guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of a construction waste treatment device and a construction waste treatment method according to the present invention;

FIG. 2 is an enlarged view of part A of FIG. 1 illustrating a construction waste treatment apparatus and a construction waste treatment method according to the present invention;

fig. 3 is a schematic partial structural diagram of a construction waste treatment device and a treatment method thereof according to the present invention;

fig. 4 is a schematic partial structural diagram of a construction waste treatment apparatus and a treatment method thereof according to the present invention;

FIG. 5 is a side view of a fixing box of the construction waste treatment apparatus and the construction waste treatment method according to the present invention;

FIG. 6 is a top view of a screening shaft of the construction waste treatment apparatus and the construction waste treatment method according to the present invention;

FIG. 7 is a schematic structural diagram of a piston assembly of the construction waste treatment device and the treatment method thereof according to the present invention;

fig. 8 is a schematic structural diagram of a discharge barrel of the construction waste treatment device and the construction waste treatment method provided by the invention.

In the figure: 1. a frame body; 101. a tank body; 2. a fixed box; 201. a first motor; 202. a cam; 203. a sliding plate; 3. a second motor; 301. a bidirectional threaded rod; 302. an adjusting plate; 303. a sliding base; 4. screening the shaft; 401. an eccentric wheel; 402. a third motor; 5. a first crusher; 501. a delivery cartridge; 502. a helical blade; 503. a first rotating shaft; 6. a second rotating shaft; 601. a first gear; 602. a second gear; 603. a third gear; 604. a fourth gear; 7. placing a material barrel; 701. a third rotating shaft; 702. a conveyor belt; 703. a fourth rotating shaft; 704. a fifth gear; 705. a sixth gear; 706. a belt; 707. a fifth rotating shaft; 8. a water tank; 801. filtering with a screen; 802. a brush; 803. a guide shaft; 9. a first conduit; 901. a second conduit; 902. a piston assembly; 903. a third pipeline; 904. a spray head; 10. a second crusher.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1-8, a construction waste treatment device includes a frame body 1, a first crusher 5 and a second crusher 10, and further includes: the tank body 101 is fixedly connected to the top of the frame body 1, construction waste to be crushed is placed in the tank body 101, and the construction waste is poured onto the screening shaft 4 through a discharge hole of the tank body 101; the screening shafts 4 are connected to the side wall of the frame body 1 and are symmetrically designed, the included angle between the two screening shafts 4 can be adjusted through an adjusting mechanism, the two screening shafts 4 are both inclined downwards, the tank body 101 is positioned at the higher end of the screening shafts 4, and construction waste poured out through the tank body 101 can directly fall to the highest position of the two inclined screening shafts 4 and is positioned between the two screening shafts 4; the first crusher 5 and the second crusher 10 are both positioned under the two screening shafts 4, the first crusher 5 is positioned at the lower end of the screening shaft 4, the second crusher 10 is positioned at one side close to the connecting point of the screening shaft 4 and the frame body 1, the second crusher 10 is positioned at the higher end of the screening shaft 4, and the first crusher 5 is positioned at one side far away from the connecting point of the screening shaft 4 and the frame body 1; the bottom of the frame body 1 is provided with a conveying mechanism for conveying the aggregates crushed by the first crusher 5 into the second crusher 10.

During operation, construction waste pours on screening axle 4 through jar body 101, because two screening axles 4 all present the downward sloping form, so, construction waste rolls down, through the contained angle between two screening axles 4, interval between two screening axles 4 grow gradually, small construction waste at first falls, fall in second breaker 10, carry out the breakage, after the big construction waste rolls one end distance, fall in first breaker 5, then break, after first breaker 5 becomes small with big construction waste, in carrying second breaker 10 through conveying mechanism is automatic, carry out the secondary crushing, discharge from second breaker 10 discharge gate with the state of granular aggregate with the construction waste after the breakage at last.

The position of the feeding hole of the second crusher 10 is positioned above the position of the feeding hole of the first crusher 5, and the two discharging holes are mutually attached to one part, so that the missing of the falling construction waste can be prevented.

Example 2:

referring to fig. 1-8, on the basis of example 1, further,

fixed case 2 of 1 lateral wall fixedly connected with of support body, the first motor 201 of 2 lateral wall fixedly connected with of fixed case, the output fixedly connected with cam 202 of first motor 201, sliding connection has sliding plate 203 in fixed case 2, sliding plate 203 and the laminating of fixed case 2 inner walls, sliding plate 203 bottom pastes with cam 202 mutually, the lower one end in screening axle 4 position is connected on sliding

plate

203, 1 lateral wall of support body is equipped with the spin, the one end that sliding plate 203 was kept away from to screening axle 4 is fixed on the spin, the spin can be at 1 lateral wall free rotation of support body.

The first motor 201 is started, the first motor 201 drives the cam 202 to rotate, the cam 202 drives the screening shaft 4 to swing up and down through the sliding plate 203, and the screening quality of the construction waste is improved.

Example 3:

referring to fig. 1-8, on the basis of example 2, further,

the embodiment discloses an adjustment mechanism, and adjustment mechanism includes second motor 3 and regulating plate 302, and second motor 3 fixed connection is at sliding plate 203 lateral wall, and second motor 3's output is connected with two-way threaded rod 301, and regulating plate 302 just all slides on regulating plate 302 for two of symmetrical design, sliding connection has sliding base 303 on regulating plate 302, and the lower one end in screening axle 4 position is connected on sliding base 303.

The two ends of the bidirectional threaded rod 301 are opposite in rotating direction and same in thread pitch, the lower end of the screening shaft 4 is connected to the sliding base 303, and the sliding direction is perpendicular to the axis of the bidirectional threaded rod 301.

When the included angle between two screening axles 4 needs to be adjusted, the second motor 3 is started, the second motor 3 drives the two-way threaded rod 301 to rotate, the two adjusting plates 302 are driven to move relatively through the two-way threaded rod 301, so that the screening axles 4 are driven to rotate, the purpose of adjusting the included angle between the two screening axles 4 is achieved, and the purpose of screening different sizes of construction wastes is adapted.

The sliding plate 203 has a sliding slot on its side wall, and the adjusting plate 302 slides in the sliding slot.

The above-disclosed adjusting mechanism can also be realized by directly pushing the adjusting plate 302 to move through the air cylinder.

Example 4:

referring to fig. 1-8, on the basis of example 3, further,

a third motor 402 is fixedly connected to the sliding base 303, the output end of the third motor 402 is connected to the sieving shaft 4, eccentric wheels 401 are fixedly connected to the sieving shaft 4, and the eccentric wheels 401 on each sieving shaft 4 are designed into 4-10 groups.

The third motor 402 is started to drive the screening shaft 4 to rotate, the screening shaft 4 drives the eccentric wheel 401 to rotate, the construction waste can be pushed up through the up-and-down swing of the screening shaft 4, the construction waste is overturned through the up-and-down swing of the screening shaft 4, the construction waste is prevented from directly sliding into the first crusher 5 under the influence of the small size, and the screening quality is improved again.

Example 5:

referring to fig. 1-8, on the basis of example 4, further,

the embodiment discloses a conveying mechanism, which comprises a conveying cylinder 501 and a conveyor belt 702, wherein the conveying cylinder 501 is fixedly connected to the bottom of a frame body 1, one end of the conveying cylinder 501 is communicated with a discharge hole of a first crusher 5, a first rotating shaft 503 is rotatably connected to the conveying cylinder 501, a helical blade 502 is fixedly connected to the first rotating shaft 503, a third rotating shaft 701, a fourth rotating shaft 703 and a fifth rotating shaft 707 are respectively rotatably connected to the frame body 1, the fifth rotating shaft 707 is positioned above a feed inlet of a second crusher 10, the conveyor belt 702 is connected between the third rotating shaft 701 and the fifth rotating shaft 707, a discharge cylinder 7 is connected to one end of the conveying cylinder 501, which is far away from the first crusher 5, the discharge cylinder 7 is positioned on the conveyor belt 702, the third rotating shaft 701 and the fourth rotating shaft are connected through a belt 706, a fifth gear 704 is fixedly connected to the fourth rotating shaft 703, a sixth gear 704 meshed with the fifth gear 704 is fixedly connected to one end of the conveying cylinder 705, which extends from the first rotating shaft 503, a transmission mechanism for driving the first rotating shaft 503 to rotate is arranged between the first rotating shaft 503 and the output end of the first motor 201.

After the construction waste with a large volume is crushed into small pieces by the first crusher 5, the construction waste enters the conveying cylinder 501 through the discharge port, meanwhile, the first rotating shaft 503 is driven to rotate through the transmission mechanism, and then the spiral blade 502 is driven to rotate, the construction waste is conveyed to the conveying belt 702 through the charging cylinder 7, meanwhile, the spiral blade 502 drives the fourth rotating shaft 703 to rotate through the sixth gear 705 and the fifth gear 704, then the third rotating shaft 701 is driven to rotate through the belt 706, the third rotating shaft 701 drives the conveying belt 702 to move, the construction waste is conveyed to the second crusher 10, and the construction waste is crushed again.

The transmission mechanism comprises a second rotating shaft 6 and a first gear 601, the second rotating shaft 6 is rotatably connected to the side wall of the fixed box 2, the first gear 601 is fixedly connected to the output end of the first motor 201, the top of the second rotating shaft 6 is fixedly connected with a second gear 602 meshed and connected with the first gear 601, the bottom of the second rotating shaft 6 is fixedly connected with a third gear 603, and the first rotating shaft 503 is fixedly connected with a fourth gear 604 meshed and connected with the third gear 603.

The first motor 201 drives the cam 202 to rotate, and simultaneously drives the second rotating shaft 6 to rotate through the first gear 601 and the second gear 602, and then drives the first rotating shaft 503 to rotate through the third gear 603 and the fourth gear 604.

The sixth gear 705 and the fifth gear 704 are two intermeshing crossed helical cylindrical gears.

The third gear 603 and the fourth gear 604 are also two intermeshing crossed helical cylindrical gears.

The first gear 601 and the second gear 602 are helical gears that mesh with each other.

The above conveying mechanism can also be realized by directly driving the first rotating shaft 503 to rotate by a motor.

Example 6:

referring to fig. 1-8, on the basis of example 5, further,

fixedly connected with water tank 8 on

support body

1, 2 bottom inner walls of fixed case are equipped with piston assembly 902, and piston assembly 902 power end is connected with sliding plate 203, is connected with second pipeline 901 between piston assembly 902 and the water tank 8, is connected with shower nozzle 904 on the support body 1, and shower nozzle 904 is located screening axle 4 tops, is connected with third pipeline 903 between shower nozzle 904 and the piston assembly 902, all is equipped with the check valve in second pipeline 901 and the third pipeline 903.

When the sliding plate 203 slides in the fixed box 2 in a reciprocating manner, the piston assembly 902 is driven to move, the piston assembly 902 conveys water in the water tank 8 into the spray head 904, and then the water is sprayed out in a water mist shape, so that dust is reduced, and the dust is prevented from floating disorderly when being screened on the screening shaft 4.

The piston assembly 902, as described above, includes a piston cylinder, a piston plate slidably connected within the piston cylinder, and a piston rod fixedly connected to the piston plate.

The power end of the piston assembly 902 is connected to the sliding plate 203, that is, the end of the piston rod away from the piston plate is fixedly connected to the bottom of the sliding plate 203.

The piston assembly 902 moves, meaning that the piston rod drives the piston plate to slide back and forth within the piston cylinder.

The piston rod and the output end of the first motor 201 are staggered with each other to avoid interference.

The one-way valve in the second pipe 901 makes water only flow into the piston cylinder through the second pipe 901, but not flow out reversely.

The one-way valve in the third conduit 903 allows water to flow only out of the piston cylinder through the third conduit 903 and not in reverse.

Example 7:

referring to fig. 1-8, on the basis of example 6, further,

all rotate on water tank 8 and the support body 1 and be connected with guiding axle 803, conveyer belt 702 pastes with guiding axle 803 mutually, and in conveyer belt 702 passed water tank 8, 8 bottom inner walls of water tank were equipped with filter screen 801, and filter screen 801 detachable connects at 8 bottom inner walls of water tank, is the slope form.

Since the construction waste is wetted by the water mist sprayed from the spray nozzle 904, and a layer of water is attached to the surface of the construction waste, small particles remain on the surface of the construction waste when the conveyor belt 702 conveys the construction waste, and the working environment becomes dirty after a long time of work.

Therefore, after the construction waste is transported, the conveyor belt 702 enters the water tank 8 through the guide shaft 803, and is cleaned by the water in the water tank 8, thereby keeping the conveyor belt clean.

The screen 801 may filter dust particles from entering the piston assembly 902.

The inside of the water tank 8 is fixedly connected with a brush 802, the brush 802 is attached to the surface of the conveyor belt 702, the side wall of the water tank 8 is connected with a first pipeline 9, and the first pipeline 9 is provided with a rotary switch.

The brush 802 is attached to the surface of the conveyor belt 702, so that residual small particles attached to the surface of the conveyor belt 702 can be further removed, and the cleaning quality is improved.

When needs wash water tank 8, the rotary switch on the first pipeline 9 of accessible discharges water, then washs, and water tank 8 is for convenient the washing, and the top can be provided with the side door, can take out filter screen 801.

Example 8:

referring to fig. 1-8, on the basis of example 7, further,

a method for treating construction waste comprises the following steps:

firstly, pouring construction waste on the screening shaft 4 through the tank body 101, wherein the construction waste is poured at the highest position of the screening shaft 4; then, the construction waste rolls downwards between the two screening shafts 4, the construction waste with small volume firstly falls into the second crusher 10 for crushing through an included angle between the two screening shafts 4, and after the construction waste with large volume rolls for a distance, the construction waste falls into the first crusher 5 along with the increase of the distance between the two screening shafts 4 and is then crushed; secondly, after the construction waste with large volume is crushed into small size by the first crusher 5, the small size is automatically conveyed into the second crusher 10 by the conveying mechanism for secondary crushing; finally, the granular aggregate is discharged through a discharge port of the second crusher 10 and used as an aggregate for paving.

The first crusher 5 and the second crusher 10 are of two different models, the first crusher 5 is used for crushing large-size construction waste, and the second crusher 10 is used for crushing small-size construction waste.

All the motors can adopt, but are not limited to, a forward and reverse rotating motor with the model number of 90YR120GY 38.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a processing apparatus of building rubbish, includes support body (1), first breaker (5) and second breaker (10), its characterized in that still includes:

the tank body (101) is fixedly connected to the top of the frame body (1);

the screening shafts (4) are connected to the side wall of the frame body (1) and are symmetrically designed, the included angle between the two screening shafts (4) can be adjusted through an adjusting mechanism, and the two screening shafts (4) are both downward inclined;

the first crusher (5) and the second crusher (10) are both positioned right below the two screening shafts (4), the first crusher (5) is positioned at the lower end of the screening shafts (4), and the second crusher (10) is positioned at the higher end of the screening shafts (4);

and a conveying mechanism for conveying the aggregates crushed by the first crusher (5) into the second crusher (10) is arranged at the bottom of the frame body (1).

2. The construction waste treatment device according to claim 1, wherein a fixed box (2) is fixedly connected to the side wall of the frame body (1), a first motor (201) is connected to the side wall of the fixed box (2), a cam (202) is fixedly connected to the output end of the first motor (201), a sliding plate (203) is slidably connected to the fixed box (2), the bottom of the sliding plate (203) is attached to the cam (202), the lower end of the screening shaft (4) is connected to the sliding plate (203), a rolling ball is arranged on the side wall of the frame body (1), and the end, away from the sliding plate (203), of the screening shaft (4) is fixed to the rolling ball.

3. The construction waste disposal device according to claim 2, wherein the adjusting mechanism comprises a second motor (3) and an adjusting plate (302), the second motor (3) is fixedly connected to the side wall of the sliding plate (203), the output end of the second motor (3) is connected with the bidirectional threaded rod (301), the adjusting plates (302) are two symmetrical in design and slide on the adjusting plate (302), the adjusting plate (302) is slidably connected with a sliding base (303), and the lower end of the sieving shaft (4) is connected to the sliding base (303).

4. A construction waste disposal device according to claim 3, wherein a third motor (402) is fixedly connected to the sliding base (303), an output end of the third motor (402) is connected to the sieving shaft (4), and an eccentric wheel (401) is fixedly connected to the sieving shaft (4).

5. The construction waste treatment device according to claim 2, wherein the conveying mechanism comprises a conveying cylinder (501) and a conveyor belt (702), the conveying cylinder (501) is fixedly connected to the bottom of the frame body (1), one end of the conveying cylinder (501) is communicated with a discharge hole of the first crusher (5), a first rotating shaft (503) is rotatably connected to the conveying cylinder (501), a helical blade (502) is fixedly connected to the first rotating shaft (503), a third rotating shaft (701), a fourth rotating shaft (703) and a fifth rotating shaft (707) are respectively rotatably connected to the frame body (1), the fifth rotating shaft (707) is located above a feed hole of the second crusher (10), the conveyor belt (702) is connected between the third rotating shaft (701) and the fifth rotating shaft (707), and a charging barrel (7) is connected to one end of the conveying cylinder (501) far away from the first crusher (5), the feeding barrel (7) is located on the conveying belt (702), the third rotating shaft (701) and the fourth rotating shaft (703) are connected through a belt (706), the fourth rotating shaft (703) is fixedly connected with a fifth gear (704), one end of the first rotating shaft (503) extending out of the conveying barrel (501) is fixedly connected with a sixth gear (705) meshed with the fifth gear (704) and connected with the fifth gear, and a transmission mechanism for driving the first rotating shaft (503) to rotate is arranged between the output end of the first rotating shaft (503) and the output end of the first motor (201).

6. The construction waste treatment device according to claim 5, wherein the transmission mechanism comprises a second rotating shaft (6) and a first gear (601), the second rotating shaft (6) is rotatably connected to the side wall of the fixed box (2), the first gear (601) is fixedly connected to the output end of the first motor (201), a second gear (602) meshed with the first gear (601) is fixedly connected to the top of the second rotating shaft (6), a third gear (603) is fixedly connected to the bottom of the second rotating shaft (6), and a fourth gear (604) meshed with the third gear (603) is fixedly connected to the first rotating shaft (503).

7. The building rubbish disposal device according to claim 5, wherein a water tank (8) is fixedly connected to the frame body (1), a piston assembly (902) is arranged on an inner wall of the bottom of the fixed tank (2), a power end of the piston assembly (902) is connected with the sliding plate (203), a second pipeline (901) is connected between the piston assembly (902) and the water tank (8), a spray head (904) is connected to the frame body (1), the spray head (904) is located above the screening shaft (4), a third pipeline (903) is connected between the spray head (904) and the piston assembly (902), and one-way valves are arranged in the second pipeline (901) and the third pipeline (903).

8. The building rubbish disposal device according to claim 7, wherein a guide shaft (803) is rotatably connected to each of the water tank (8) and the frame body (1), the conveyor belt (702) is attached to the guide shaft (803), the conveyor belt (702) passes through the inside of the water tank (8), and a filter screen (801) is arranged on the inner wall of the bottom of the water tank (8).

9. The construction waste disposal device according to claim 8, wherein a brush (802) is fixedly connected to the inside of the water tank (8), the brush (802) is attached to the surface of the conveyor belt (702), a first pipe (9) is connected to the side wall of the water tank (8), and a rotary switch is disposed on the first pipe (9).

10. A method for the treatment of construction waste, comprising a construction waste treatment apparatus according to any one of claims 1 to 9, characterized in that it is operated by the following steps:

s1, pouring the construction waste on the screening shaft (4) through the tank body (101);

s2, the construction waste rolls downwards, the construction waste with small volume firstly falls into a second crusher (10) to be crushed through an included angle between two screening shafts (4), and after the construction waste with large volume rolls for a distance, the construction waste falls into a first crusher (5) along with the increase of the distance between the two screening shafts (4) and is then crushed;

s3, the construction waste with large volume is crushed into small size by the first crusher (5), and then is automatically conveyed into the second crusher (10) by the conveying mechanism for secondary crushing;

s4, and discharging the granular aggregate through a discharge hole of the second crusher (10).