CN114653724A - A construction waste recycling device and its operation method - Google Patents

Abstract

The invention relates to a waste recovery device for building construction, which comprises a box body, wherein a discharge hole is formed in one side of the bottom of the box body, a guide plate is fixed on one side of the bottom of the box body, a guide groove is formed in the inner side of the guide plate, a guide block is connected in the guide groove in a sliding manner, a guide spring is fixedly welded between the guide block and the inner wall of the bottom of the guide groove, a support rod is fixed on the inner side of the guide block, a sealing plate is fixed at the top of the support rod and arranged in the discharge hole, a push rod is arranged at one side of the box body in a penetrating manner, a push plate is fixed on the inner side of the push rod, a connecting shaft is rotatably connected between the inner walls at two sides of the box body, a crushing roller is fixedly sleeved on the connecting shaft, a fixing frame is fixed on one side of the box body close to the push rod, a motor is fixed on the inner side of the fixing frame, and a motor output shaft is fixed between the connecting shaft and the connecting shaft; the invention extrudes the soil residues into a pile, and the bottom of the soil residue pile bears too large load and gradually falls off along with the increase of the weight, thereby realizing the discharge of the soil residues and avoiding the generation of a large amount of dust during the discharge.

Description

A construction waste recycling device and its operation method

technical field

The invention relates to the technical field of building construction, in particular to a waste recycling device for building construction.

Background technique

Building construction refers to the production activities in the implementation stage of project construction. It is the construction process of various buildings. It can also be said to be the process of transforming various lines on the design drawings into real objects at designated locations. It includes basic engineering construction. , main structure construction, roofing engineering construction, decoration engineering construction, etc., the construction site is called "building construction site" or "construction site", also called construction site.

During the construction process, a large amount of construction waste will be generated. Many wastes are directly stacked on the construction site and occupy the public area. Therefore, it is necessary to recycle the construction waste. For example, the steel bars and cement concrete remaining in the construction waste can also be returned to the furnace for processing and rebuilding. Regenerated into sand and gravel aggregate, the existing waste recycling device will generate a lot of dust when discharging, so corresponding improvements are made to solve this problem.

In order to solve the above problems, the present invention proposes a waste recycling device for building construction.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the problem that a large amount of dust is generated when the existing recycling device is discharged, and to propose a waste recycling device for construction to solve the above-mentioned technical problems.

In order to realize the purpose of the present invention, the technical scheme adopted in the present invention is:

A waste recycling device for construction, comprising a box body, a discharge port is provided on one side of the bottom of the box body, a guide plate is fixed by bolts on the side of the bottom of the box body close to the discharge port, and a guide groove is provided on the inner side of the guide plate , a guide block is slidably connected in the guide groove, the same guide spring is welded and fixed between the guide block and the inner wall of the bottom of the guide groove, the inner side of the guide block is fixed with a support rod by bolts, and the top of the support rod is fixed with a closing plate by bolts. In the discharge port, the side of the box away from the discharge port is provided with a push rod, and the inner side of the push rod is fixed with a push plate by bolts. The crushing roller is sleeved and fixed, the side of the box close to the push rod is fixed with a fixing frame by bolts, the inner side of the fixing frame is fixed with a motor, the output shaft of the motor and the connecting shaft are fixed by bolts, and the push rod is connected with a transmission mechanism.

Preferably, the transmission mechanism includes a reciprocating screw, the reciprocating screw is rotatably connected to the side of the box away from the discharge port through a bearing, a main gear is sleeved and fixed on the connecting shaft, a slave gear is sleeved and fixed on the reciprocating screw, and the main gear is sleeved and fixed. It is meshed with the slave gear, the reciprocating screw is sleeved with a reciprocating slider, the side of the box away from the discharge port is fixed with a directional frame plate by bolts, and a directional block is slidably connected in the directional frame plate. The same first vertical rod is fixed by bolts between them, and the same second vertical rod is fixed by bolts between the directional block and the push rod.

Preferably, the number of teeth of the slave gear is greater than that of the master gear.

Preferably, a guide plate is fixed on the inner wall of the box body close to the discharge port by bolts, a guide groove is formed on the inner side of the guide plate, a guide block is slidably connected in the guide groove, and the same guide block and the inner wall of the guide groove are welded and fixed. Compress the spring, a pressure rod is fixed on the inner side of the guide block by bolts, the bottom of the pressure rod is fixed with a height-limiting plate by bolts, and the inner part of the height-limiting plate is warped upward.

Preferably, a first chute is provided on the inner wall of the box away from the discharge port, a first sliding block is slidably connected in the first chute, and a pin is formed between the inner side of the first sliding block and the top of the push plate The same first material guide plate is connected, and the first chute is arranged above the push plate.

Preferably, a second material guide plate is fixed on the inner wall of the box away from the first material guide plate by bolts, the second material guide plate is inclined downward toward the side of the first material guide plate, and the second material guide plate is inclined downward. above the first guide plate.

Preferably, the inner sides of both ends of the box body are hinged with aggregate plates, the aggregate plates are inclined downward from the outside to the inside, the aggregate plates are arranged below the crushing rollers, and the aggregate plates are connected with a reset mechanism.

Preferably, the reset mechanism includes a fixing plate, the fixing plate is fixed on the inner end face of the box body by bolts, the inner end face of the fixing plate is provided with a second sliding groove, and a second sliding block is slidably connected in the second sliding groove. The same return spring is welded and fixed between the block and the inner wall of the second chute, and the same first support rod is connected with the pin shaft between the second sliding block and the gathering plate.

Preferably, the tops of the inner walls at both ends of the box are hinged with feeding plates, the feeding plates are inclined downward toward one end of the crushing roller, the feeding plates are arranged above the crushing rollers, and the pins are pinned between the feeding plates and the gathering plates. The shaft is connected with the same second strut.

Beneficial effects:

1. Start the motor, the output shaft of the motor drives the connecting shaft and the crushing roller to rotate, and crushes the concrete. The crushed concrete forms soil and falls to the bottom of the box. At the same time, the connecting shaft drives the main gear to rotate, and the main gear meshes to drive the slave gear and the reciprocating The screw rotates, and the reciprocating slider follows the first vertical rod and the directional block to reciprocate along the directional frame plate, and then synchronously drives the second vertical rod, the push rod and the push plate to reciprocate, and the push plate discharges the soil and slag toward the material. The side of the mouth is pushed and squeezed, and the soil slag is continuously squeezed and accumulated on the closing plate. As the weight of the soil slag increases, the closing plate gradually moves downward, compressing the guide spring, and as the weight of the soil slag continues to increase, the closing plate gradually moves downward. , the bottom of the soil slag pile bears too much weight and gradually falls off, so as to realize the discharge of the soil slag, thereby avoiding a large amount of dust when discharging. Push the muck and squeeze.

2. Set the limited height plate. When the push plate pushes the soil slag, the push plate first contacts the warped part of the height limit plate, so that the height limit plate is lifted up, and the push plate is in the closed space enclosed by the height limit plate and the box. The soil slag is squeezed inside to prevent dust from flying up. When the push plate returns, the compression spring pushes the guide block, the pressure rod and the height limit plate to reset and move downward, and rest on the soil slag pile to further prevent dust.

3. A first guide plate is provided. When the push plate pushes the soil slag, the first guide plate will stretch. At the same time, as the push plate continues to move, the whole of the first guide plate will follow the first slider. At the same time, slide down along the first chute, so that the inclination of the first guide plate becomes smaller, and the subsequent broken soil slag can be received. When the push plate returns, the first guide plate shrinks first, and then recovers. To a position with a larger inclination angle, during this process, the soil slag received on the first guide plate will slide down to the right side of the push plate along the first guide plate, which is convenient for the subsequent continuous push of the push plate. The soil and slag can be guided to the first guide plate to avoid the accumulation of soil and slag on the height limit plate.

4. The aggregate plate is provided, which can facilitate the concrete after feeding to stay around the crushing roller, so that the concrete is completely crushed. When the concrete is mixed with hard impurities such as steel bars and iron blocks, it is impacted by the crushing roller. After smashing it to the aggregate plate, the aggregate plate rotates, and the opening angle between the two aggregate plates expands, which facilitates the falling of hard impurities, thereby avoiding damage to the crushing roller. , the feeding plate is pressed and rotated downward, which is convenient for feeding. After the feeding is completed, under the action of the return spring, the feeding plate is supported by the transmission of the gathering plate and the second support rod, and the two feeding plates are supported. Closing above the crushing rollers further prevents dust.

Description of drawings

Fig. 1 is the overall structure schematic diagram of a kind of construction waste recycling device of the present invention;

Fig. 2 is a schematic view of the enlarged structure of a waste recycling device for building construction according to the present invention with respect to the place A of Fig. 1;

FIG. 3 is a schematic structural diagram of the first angle inside the box of a construction waste recycling device according to the present invention;

Fig. 4 is a schematic view of the enlarged structure of a waste recycling device for building construction according to the present invention at B in Fig. 3;

5 is a schematic diagram of the second angle structure inside the box of a construction waste recycling device according to the present invention;

Fig. 6 is a schematic diagram of the enlarged structure of a waste recycling device for building construction according to the present invention at C in Fig. 5;

FIG. 7 is a schematic cross-sectional structural diagram of a box of a construction waste recycling device according to the present invention;

FIG. 8 is an enlarged structural schematic diagram of a waste recycling device for building construction according to the present invention at D of FIG. 7 .

The reference numbers are as follows:

1. Box body; 2. Discharge port; 3. Guide plate; 4. Guide groove; 5. Guide block; 6. Guide spring; 7. Support rod; 8. Closing plate; 9. Push rod; 10. Push plate ; 11, connecting shaft; 12, crushing roller; 13, fixing frame; 14, motor; 15, reciprocating screw; 16, main gear; 17, slave gear; 18, reciprocating slider; 19, first vertical rod; 20, Orientation frame plate; 21, orientation block; 22, second vertical rod; 23, height limit plate; 24, guide plate; 25, guide groove; 26, guide block; 27, compression spring; 28, pressure rod; 29, first A chute; 30, the first slider; 31, the first guide plate; 32, the second guide plate; 33, the fixing plate; 34, the second chute; 35, the second slider; 36, the return spring ; 37, the aggregate plate; 38, the first pole; 39, the feed plate; 40, the second pole.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

Below in conjunction with accompanying drawing 1-8 and embodiment, the present invention is further described:

In this embodiment, as shown in Figures 1-6, a construction waste recycling device includes a box body 1, a discharge port 2 is opened on one side of the bottom of the box body 1, and the bottom of the box body 1 is close to the discharge port 2. A guide plate 3 is fixed on one side by bolts, a guide groove 4 is opened on the inner side of the guide plate 3, a guide block 5 is slidably connected in the guide groove 4, and the same guide spring 6 is welded and fixed between the guide block 5 and the inner wall of the bottom of the guide groove 4 The inner side of the guide block 5 is fixed with a support rod 7 by bolts, and the top of the support rod 7 is fixed with a closing plate 8 by bolts. The push rod 9, the inner side of the push rod 9 is fixed with a push plate 10 by bolts, the same connecting shaft 11 is rotatably connected between the inner walls of the two sides of the box body 1 through bearings, and a crushing roller 12 is sleeved and fixed on the connecting shaft 11. The box body 1 The side close to the push rod 9 is fixed with a fixing frame 13 by bolts, the inner side of the fixing frame 13 is fixed with a motor 14 by bolts, the output shaft of the motor 14 and the connecting shaft 11 are fixed by bolts, and the push rod 9 is connected with a transmission mechanism.

Further, the transmission mechanism includes a reciprocating screw 15. The reciprocating screw 15 is rotatably connected to the side of the box body 1 away from the discharge port 2 through a bearing. The main gear 16 is sleeved and fixed on the connecting shaft 11. The reciprocating screw 15 is sleeved and fixed with The slave gear 17, the main gear 16 and the slave gear 17 are meshingly connected, the reciprocating screw 15 is sleeved with a reciprocating slider 18, the side of the box 1 away from the discharge port 2 is fixed with an orientation frame plate 20 by bolts, and the orientation frame plate 20 A directional block 21 is slidably connected inside, the same first vertical rod 19 is fixed between the directional block 21 and the reciprocating slider 18 by bolts, and the same second vertical rod 22 is fixed by bolts between the directional block 21 and the push rod 9 , the push plate 10 can be driven to reciprocate through the connecting shaft 11 .

Further, the number of teeth of the slave gear 17 is greater than that of the master gear 16, so that the push plate 10 can be controlled to move at a steady speed.

Further, the inner wall of the box body 1 close to the discharge port 2 is fixed with a guide plate 24 by bolts. The inner side of the guide plate 24 is provided with a guide groove 25, and a guide block 26 is slidably connected in the guide groove 25. The guide block 26 and the inner wall of the guide groove 25 The same compression spring 27 is welded and fixed between them, the inner side of the guide block 26 is fixed with a pressure rod 28 by bolts, the bottom of the pressure rod 28 is fixed with the height-limiting plate 23 by bolts, and the inner part of the height-limiting plate 23 is warped upwards, which can be lowered. dust.

Further, the inner wall of the box body 1 away from the discharge port 2 is provided with a first chute 29 . The first chute 29 is slidably connected with a first sliding block 30 . The same first guide plate 31 is connected with the pin between the tops, the first chute 29 is arranged above the push plate 10, and the first guide plate 31 is a telescopic plate, so that the soil residue can finally fall to the push plate 10 to the right.

Further, the inner wall of the box body 1 away from the first material guide plate 31 is fixed with a second material guide plate 32 by bolts. The second material guide plate 32 is inclined downward toward the side of the first material guide plate 31, and the second The material guide plate 32 is located above the first material guide plate 31 , so that the soil slag can be guided and discharged onto the first material guide plate 31 .

In this embodiment, referring to FIGS. 7-8 , the inner sides of both ends of the box body 1 are hinged with aggregate plates 37 , the aggregate plates 37 are inclined downward from the outside to the inside, and the aggregate plates 37 are arranged under the crushing roller 12 . The plate 37 is connected with a reset mechanism, so that the concrete can be completely broken.

Further, the reset mechanism includes a fixing plate 33, the fixing plate 33 is fixed on the inner end face of the box body 1 by bolts, the inner end face of the fixing plate 33 is provided with a second sliding groove 34, and a second sliding block is slidably connected in the second sliding groove 34. 35. The same return spring 36 is welded and fixed between the second sliding block 35 and the inner wall of the second chute 34, and the same first support rod 38 is connected to the pin between the second sliding block 35 and the aggregate plate 37, that is, The opening angles of the two polymer sheets 37 can be made variable.

Further, the tops of the inner walls of both ends of the box body 1 are hinged with feeding plates 39, the feeding plates 39 are inclined downward toward one end of the crushing roller 12, and the feeding plates 39 are arranged above the crushing rollers 12. The same second support rod 40 is pin-connected between the material plates 37, so that dust can be reduced.

The motor 14 is started, and the output shaft of the motor 14 drives the connection shaft 11 and the crushing roller 12 to rotate to crush the concrete. The crushed concrete forms soil residue and falls to the bottom of the box 1. At the same time, the connection shaft 11 drives the main gear 16 to rotate, and the main gear 16 The meshing drives the slave gear 17 and the reciprocating screw 15 to rotate, and the reciprocating slider 18 follows the first vertical rod 19 and the directional block 21 to reciprocate along the directional frame plate 20, and then synchronously drives the second vertical rod 22 and push rod 9. It moves back and forth with the push plate 10, the push plate 10 pushes and squeezes the soil slag to the side of the discharge port 2, and the soil slag is continuously squeezed and accumulated on the closing plate 8. With the increase of the weight of the soil slag, the closing plate 8 Gradually move down to compress the guide spring 6. With the continuous increase of the weight of the soil slag, the bottom of the soil slag pile bears too much weight and gradually falls off, so as to realize the discharge of the soil slag, thereby avoiding a large amount of dust during discharging, and the main When the number of teeth of the gear 16 is smaller than that of the slave gear 17, the rotation speed of the slave gear 17 can be reduced, so that the push plate 10 can push the soil residue at a steady speed and squeeze it.

Further, a height-limiting plate 23 is provided. When the push plate 10 pushes the soil slag, the push plate 10 first contacts the warped part of the height-limiting plate 23, so that the height-limiting plate 23 is lifted up, and the push plate 10 is in the height-limiting plate 23. The soil slag is squeezed in the closed space enclosed by the box body 1 to prevent dust from flying up. When the push plate 10 returns, the compression spring 27 pushes the guide block 26, the pressure rod 28 and the height limit plate 23 to reset and move downward. , and put it on the muck pile to further prevent dust.

Further, a first guide plate 31 is provided. When the push plate 10 pushes the soil slag, the first guide plate 31 will be elongated. At the same time, with the continuous movement of the push plate 10, the overall It will follow the first slider 30 and slide down along the first chute 29, so that the inclination angle of the first guide plate 31 becomes smaller, and the subsequent broken soil can be received. When the push plate 10 returns, The first guide plate 31 shrinks first, and then returns to a position with a larger inclination angle. During this process, the soil slag received on the first guide plate 31 will slide down to the right side of the push plate 10 along the first guide plate 31 , which is convenient for the subsequent continuous pushing of the push plate 10 , and through the second guide plate 32 , the soil slag can be guided and discharged to the first guide plate 31 to avoid the accumulation of soil and slag on the height limiting plate 23 .

Further, the aggregate plate 37 is provided, which can facilitate the feeding of the concrete to stay around the crushing roller 12, so that the concrete is completely broken. When the concrete is doped with hard impurities such as steel bars and iron blocks, it is broken After the impact of the roller 12, it hits the aggregate plate 37, the aggregate plate 37 rotates, and the opening angle between the two aggregate plates 37 expands, which facilitates the falling of hard impurities, thereby avoiding damage to the crushing roller 12. Plate 39, that is, when feeding, the feeding plate 39 is pressed and rotated downward to facilitate feeding. After the feeding is completed, under the action of the return spring 36, the transmission through the aggregate plate 37 and the second support rod 40 , the feeding plate 39 is propped up, and the two feeding plates 39 are closed above the crushing roller 12, thereby further preventing dust.

Working principle: when in use, start the motor 14, the output shaft of the motor 14 drives the connecting shaft 11 and the crushing roller 12 to rotate, and crushes the concrete. 16 rotates, the main gear 16 meshes and drives the secondary gear 17 and the reciprocating screw 15 to rotate, driving the reciprocating slider 18 to follow the first vertical rod 19 and the orientation block 21 to reciprocate along the orientation frame plate 20, and then synchronously drives the second vertical The rod 22, the push rod 9 and the push plate 10 move back and forth, the push plate 10 pushes and squeezes the soil slag to the side of the discharge port 2, and the soil slag is continuously squeezed and accumulated on the closing plate 8. As the slag increases, the closing plate 8 gradually moves downward to compress the guide spring 6. With the continuous increase of the weight of the earth slag, the bottom of the earth slag pile bears too much weight and gradually falls off, so as to realize the discharge of the earth slag, thereby avoiding the discharge of the earth slag. When a large amount of dust is generated, the number of teeth of the main gear 16 is smaller than that of the slave gear 17, so the rotation speed of the slave gear 17 can be reduced, so that the push plate 10 can push the soil slag and squeeze it at a steady speed. When pushing the soil slag, the push plate 10 first comes into contact with the warped part of the height limiting plate 23, so that the height limiting plate 23 is lifted up, and the push plate 10 pushes against the soil slag in the closed space enclosed by the height limiting plate 23 and the box body 1. Squeeze to prevent dust from flying up. When the push plate 10 returns, the compression spring 27 pushes the guide block 26, the pressure rod 28 and the height limit plate 23 to reset and move downward, and rest on the mound to further prevent dust and further Yes, a first guide plate 31 is provided. When the push plate 10 pushes the soil slag, the first guide plate 31 will stretch. At the same time, as the push plate 10 continues to move, the entire first guide plate 31 will be Along with the first slider 30, it slides down along the first chute 29, so that the inclination angle of the first guide plate 31 becomes smaller, and the subsequent crushed soil can be received. When the push plate 10 returns, the first A guide plate 31 shrinks first, and then returns to a position with a larger inclination angle. During this process, the soil slag received on the first guide plate 31 will slide down to the right side of the push plate 10 along the first guide plate 31 . It is convenient for the subsequent continuous pushing of the push plate 10. Through the second guide plate 32, the soil slag can be guided and discharged to the first guide plate 31, so as to avoid the accumulation of soil and slag on the height limiting plate 23. Further, a The aggregate plate 37 can facilitate the concrete after feeding to stay around the crushing roller 12, so that the concrete is completely crushed. , hits the aggregate plate 37, the aggregate plate 37 rotates, and the opening angle between the two aggregate plates 37 expands, which facilitates the falling of hard impurities, thereby avoiding damage to the crushing roller 12, and a feeding plate 39 is provided to During feeding, the feeding plate 39 is pressurized and rotates downward to facilitate feeding. After the feeding is completed, under the action of the return spring 36, the feeding plate 37 and the second support rod 40 are driven to move the feeding plate 39 downward. 39 is propped up, and the two feed plates 39 are closed above the crushing roller 12, thereby further preventing dust.

The embodiment of the present invention announces the preferred embodiment, but is not limited to this, those of ordinary skill in the art can easily understand the spirit of the present invention according to the above-mentioned embodiment, and make different extensions and changes, However, as long as they do not depart from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims (10)

1. The utility model provides a waste recovery device for construction, including box (1), a serial communication port, discharge gate (2) has been seted up to box (1) bottom one side, box (1) bottom one side fixedly connected with deflector (3) near discharge gate (2), deflector (3) inboard has been seted up guide way (4), sliding connection has guide block (5) in guide way (4), welded fastening has same guide spring (6) between guide block (5) and the inner wall of guide way (4) bottom, the inboard fixedly connected with bracing piece (7) of guide block (5), bracing piece (7) top fixedly connected with closing plate (8), closing plate (8) set up in discharge gate (2), one side that box (1) kept away from discharge gate (2) runs through and is provided with push rod (9), push pedal (10) of inboard fixedly connected with of push rod (9), it is connected with same connecting axle (11) to rotate between box (1) both sides inner wall, a crushing roller (12) is fixedly sleeved on the connecting shaft (11), a fixing frame (13) is fixedly connected to one side, close to the push rod (9), of the box body (1), a motor (14) is fixedly connected to the inner side of the fixing frame (13), an output shaft of the motor (14) is fixedly connected with the connecting shaft (11), and the push rod (9) is connected with a transmission mechanism.

2. The construction waste recycling device as set forth in claim 1, wherein: drive mechanism includes reciprocal screw rod (15), reciprocal screw rod (15) are rotated and are connected in one side of keeping away from discharge gate (2) in box (1), the cover is established and is fixed with master gear (16) on connecting axle (11), the cover is established and is fixed with from gear (17) on reciprocal screw rod (15), master gear (16) and from gear (17) meshing connection, the cover is equipped with reciprocal slider (18) on reciprocal screw rod (15), directional deckle board (20) of one side fixedly connected with of discharge gate (2) are kept away from in box (1), sliding connection has directional piece (21) in directional deckle board (20), same first montant (19) of fixedly connected with between directional piece (21) and reciprocal slider (18), same second montant (22) of fixedly connected with between directional piece (21) and push rod (9).

3. The construction waste recycling device as set forth in claim 2, wherein: the number of teeth of the slave gear (17) is larger than that of the master gear (16).

4. The construction waste recycling device as set forth in claim 1, wherein: the box (1) is close to one side inner wall fixedly connected with baffle (24) of discharge gate (2), and guide slot (25) have been seted up to baffle (24) inboard, and sliding connection has guide block (26) in guide slot (25), and welded fastening has same pressure spring (27) between guide block (26) and guide slot (25) inner wall, and the inboard fixedly connected with depression bar (28) of guide block (26), depression bar (28) bottom fixedly connected with limit for height board (23), the inside portion upwards warpage of limit for height board (23).

5. The construction waste recycling device as set forth in claim 1, wherein: the box (1) is kept away from one side inner wall of discharge gate (2) and has been seted up first spout (29), and sliding connection has first slider (30) in first spout (29), and round pin hub connection has same first stock guide (31) between the inboard of first slider (30) and the top of push pedal (10), and first spout (29) set up in the top of push pedal (10).

6. The construction waste recycling device according to claim 5, wherein: the inner wall of one side, far away from the first material guide plate (31), of the box body (1) is fixedly connected with a second material guide plate (32), the second material guide plate (32) inclines downwards towards one side of the first material guide plate (31), and the second material guide plate (32) is located above the first material guide plate (31).

7. The construction waste recycling device as set forth in claim 1, wherein: the inner sides of two ends of the box body (1) are hinged with material gathering plates (37), the material gathering plates (37) incline downwards from outside to inside, the material gathering plates (37) are arranged below the crushing roller (12), and the material gathering plates (37) are connected with a reset mechanism.

8. The construction waste recovery device according to claim 7, wherein: the reset mechanism comprises a fixing plate (33), the fixing plate (33) is fixedly connected to the inner end face of the box body (1), a second sliding groove (34) is formed in the inner end face of the fixing plate (33), a second sliding block (35) is connected to the second sliding groove (34) in a sliding mode, the same reset spring (36) is fixedly welded between the second sliding block (35) and the inner wall of the second sliding groove (34), and the same first supporting rod (38) is connected between the second sliding block (35) and the material gathering plate (37) through a pin shaft.

9. The construction waste recycling device according to claim 7, wherein: the top of box (1) both ends inner wall all articulates there is feed plate (39), and feed plate (39) are downward towards crushing roller (12) one end slope, and feed plate (39) set up in the top of crushing roller (12), and pin hub connection has same second branch (40) between feed plate (39) and gathering flitch (37).

10. A method for operating a construction waste recycling apparatus according to any one of claims 1 to 9, wherein: starting a motor (14), driving a connecting shaft (11) and a crushing roller (12) to rotate by an output shaft of the motor (14) to crush the concrete, forming soil residues on the crushed concrete and falling to the bottom of a box body (1), driving a main gear (16) to rotate by the connecting shaft (11), driving a driven gear (17) and a reciprocating screw (15) to rotate by the main gear (16) in a meshed manner, driving a reciprocating slide block (18) to reciprocate along a directional frame plate (20) along with a first vertical rod (19) and a directional block (21), driving a second vertical rod (22), a push rod (9) and a push plate (10) to reciprocate synchronously, pushing and extruding the soil residues to one side of a discharge port (2) by the push plate (10), continuously extruding and accumulating the soil residues on a closed plate (8), gradually moving downwards along with the increase of the weight of the soil residues, and compressing a guide spring (6), along with the continuous increase of the weight of the soil slag, the bottom of the soil slag pile bears too large load and gradually falls off, so that the soil slag is discharged, and a large amount of dust is prevented from being generated during discharging, the number of teeth of the main gear (16) is smaller than that of the secondary gear (17), so that the rotating speed of the secondary gear (17) can be reduced, the push plate (10) can stably push the soil slag and extrude the soil slag, further, the height limiting plate (23) is arranged, when the push plate (10) pushes the soil slag, the push plate (10) is firstly contacted with the warping part of the height limiting plate (23) to jack the height limiting plate (23), the push plate (10) extrudes the soil slag in a closed space formed by the height limiting plate (23) and the box body (1) to prevent the dust from flying, when the push plate (10) returns, the compression spring (27) pushes the guide block (26), the compression rod (28) and the height limiting plate (23) to move downwards in a resetting way to be lapped on the soil slag pile, so as to further prevent the dust from flying, furthermore, a first material guide plate (31) is arranged, when the push plate (10) pushes the soil slag, the first material guide plate (31) can extend, and simultaneously, along with the continuous movement of the push plate (10), the whole first material guide plate (31) can slide downwards along the first sliding block (30) along with the first sliding chute (29), so that the inclination angle of the first material guide plate (31) is reduced, and then the subsequent crushed soil slag can be received, when the push plate (10) returns, the first material guide plate (31) firstly contracts and then returns to the position with a larger inclination angle, in the process, the soil slag received on the first material guide plate (31) can slide to the right side of the push plate (10) along the first material guide plate (31), so that the subsequent continuous pushing of the push plate (10) is facilitated, the soil slag can be guided and discharged onto the first material guide plate (31) through the second material guide plate (32), and the soil slag is prevented from being accumulated on the height limiting plate (23), furthermore, a material gathering plate (37) is arranged, so that the fed concrete can conveniently stay at the periphery of the crushing roller (12), thereby the concrete is completely crushed, when the concrete is doped with hard impurities such as reinforcing steel bars, iron blocks and the like, after being impacted by the crushing roller (12), the materials are smashed towards the material gathering plates (37), the material gathering plates (37) rotate, the opening angle between the two material gathering plates (37) is enlarged, so that hard impurities can fall conveniently, the crushing roller (12) is prevented from being damaged, and the feeding plate (39) is arranged, namely, when feeding, the feeding plate (39) is pressed and rotates downwards to facilitate feeding, after the feeding is finished, under the action of the return spring (36), the feeding plates (39) are supported through the transmission of the material gathering plate (37) and the second supporting rod (40), and the two feeding plates (39) are closed above the crushing roller (12), so that dust is further prevented from flying.

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