CN116273829A - A construction waste processing device and processing method thereof - Google Patents

Abstract

The invention discloses a construction waste processing device and a processing method thereof, wherein a screening cylinder is driven to rotate by a gear ring, and crushed waste is screened, as three gears are arranged outside the gear ring, two corresponding gears drive the same connecting shaft to rotate, and a cam connected with the gear ring also rotates along with the rotation of the same connecting shaft, in the process of cam deflection, a U-shaped frame can be pushed by an arc-shaped pushing block, so that the U-shaped frame drives two compression rollers at the bottom to be far away from the screening cylinder, the U-shaped frame extrudes an elastic piece, and after the protruding end of the cam breaks away from the arc-shaped pushing block, the U-shaped frame is fast moved towards the screening cylinder and knocks the screening cylinder through the support of the elastic piece, so the screening cylinder is reciprocated, the waste adhered in a first sieve hole, a second sieve hole and a third sieve hole can be knocked down by matching with the periodic knocking of the rotation of the screening cylinder, the blocking effect is further improved by continuously knocking the screening cylinder in three directions, the high quality requirement of multi-specification waste screening is met, and the recycling of the waste is facilitated.

Description

A construction waste processing device and processing method thereof

technical field

The invention belongs to the technical field of waste treatment, and in particular relates to a construction waste treatment device and a treatment method thereof.

Background technique

Construction waste is called construction waste, including various waste concrete, waste bricks, etc. left after demolition and construction. In order to recycle these waste waste, the recycling scheme for construction waste is mainly to classify, break and screen construction waste. Produce recycled aggregates that can partially or completely replace natural sand and gravel aggregates, so as to be used as mortar, concrete or artificial stone filler.

For example, the Chinese patent document "A Recycled Concrete Production Device" (application number: CN201920015779.2), which solves the problem that the concrete waste is crushed and then transmitted on the screen conveyor belt. It will pile up together, which may affect the subsequent cleaning and drying effect. In the screening process, the waste is screened by opening a through hole at the bottom of the casing, and at the same time, it is used to vibrate the horizontal screen. , improve the screening effect, and facilitate the output of materials in the required particle size range.

Based on the above, since a through hole is opened at the bottom of the casing, the waste material will be backlogged during the process of pushing the waste material through the auger; secondly, through the horizontally arranged screen, the waste material will fall by gravity, so that the waste material at the bottom will be stuck due to the backlog of waste material on the upper layer. In the screen, it is easy to cause blockage to the through holes and the screen. Furthermore, the common drum screen on the market can improve the anti-blocking effect due to continuous rolling during the process of turning over the material, but the construction waste has miscellaneous, Some materials have high hardness. Even if the screen rolls for the waste embedded in the sieve hole, it still cannot play a good role in clearing the waste, which affects the screening effect of the waste. Recycling works.

In view of this, a construction waste processing device and a processing method thereof are provided to solve the above problems.

Contents of the invention

In order to overcome the above-mentioned defects, the present invention provides a construction waste processing device and its processing method, which solves the problem that even if the waste embedded in the screen hole is rolled, it still cannot play a good role in clearing the blockage, which affects the protection of the waste. The screening effect is difficult to meet the high-quality requirements of multi-specification waste screening.

In order to achieve the above object, the present invention provides the following technical solutions: a construction waste processing device, including a bottom plate, a crushing box is arranged on the upper surface of the bottom plate, the discharge port of the crushing box is connected with a screening assembly, and the screening Two supporting frames are arranged outside the component through two bearings, the bottoms of the two supporting frames are connected to the bottom plate, and a collection box is provided under the screening assembly, and the lower surface of the collecting box is connected to the bottom plate. There are ring gears on both sides of the ring gear, and three gears are meshed outside the ring gear, and the two opposite gears are fixed with the same connecting shaft, and three cams are clamped on the outside of the connecting shaft. Blockage assembly, three blockage removal assemblies are arranged on the same bracket, the bottom end of the bracket is fixedly connected with the top of the two support frames, a magnetic separation assembly is provided in the collection box, and the magnetic separation assembly is overlapped There is a scraper assembly disposed within the collection box.

As a further solution of the present invention: the screening assembly includes a screening cylinder, the screening cylinder is arranged in two support frames, a spiral guide plate is provided inside the screening cylinder, and a screen hole is opened outside the screening cylinder. Hole 2 and sieve hole 3, the pore diameters of the sieve hole 1, sieve hole 2 and sieve hole 3 increase sequentially.

As a further solution of the present invention: the blockage removal assembly includes a U-shaped frame, the bottom of the U-shaped frame is provided with two pressure rollers, the upper surface of the U-shaped frame is fixedly connected to the bottom end of the U-shaped sliding column, The U-shaped sliding column is arranged on the bracket through two sliding sleeves.

As a further solution of the present invention: the inner top of the bracket is fixedly connected with the upper surface of the U-shaped frame through an elastic member, the inner top of the U-shaped frame is fixedly connected with an arc-shaped push block, and the bottom of the arc-shaped push block is connected with the cam lap.

As a further solution of the present invention: the magnetic separation assembly includes a protective cover, a conductive column is arranged inside the protective cover, and an electromagnet 1 and an electromagnet 2 are arranged outside the conductive column through a conductive sleeve, and the electromagnet 1 and the The second electromagnet is fixed inside the protective sleeve, the first electromagnet and the second electromagnet are combined into a T-shaped structure, the end of the conductive column away from the transmission assembly passes through the protective sleeve and is clamped on the collection box, the transmission assembly One end close to the collection box is fixed with the protective sleeve, and the conductive sleeve is fixed in the protective sleeve.

As a further solution of the present invention: the transmission assembly includes a vertical plate, the bottom of the vertical plate is fixed to the bottom plate, and one side of the vertical plate is provided with a driving wheel and a driven wheel, and the driving wheel and the driven wheel are driven by a transmission belt Connect, one end of the driving wheel is fixed with the protective sleeve, and the top of one side of the vertical plate is fixedly connected with one side of the top bracket through the fixing plate.

As a further solution of the present invention: the bottom of the collection box is provided with an inclined partition, the inclined partition is inclined at an angle of 120 degrees and is located below the magnetic separation assembly, and the inclined partition is located in front of the scraper assembly. The front and back of the collection box are respectively provided with three material baffles one and three material baffles two.

As a further solution of the present invention: the scraper assembly includes a scraper, the top of the scraper is designed in a circular arc shape and overlaps with the protective sleeve, and a fixed shaft is sleeved inside the scraper, and the fixed shaft Two coil springs are connected to the outer sleeve, and the two ends of the coil spring are respectively fixed to the outside of the fixed shaft and the scraper, and the two ends of the fixed shaft are respectively fixed to both sides of the collection box.

As a further solution of the present invention: a motor is provided above the screening assembly, the motor is specifically a biaxial drive motor, one end of the motor is fixedly connected to one of the gears, and the other end of the motor is connected to one end of the driven wheel Fixedly connected, the motor body is embedded in the fixed plate.

A method for processing construction waste waste, comprising the following steps:

S1. When in use, put the construction waste into the crushing box for crushing, and the crushed waste enters the screening cylinder. At this time, the motor works, so that the motor drives the gear and the driven wheel to rotate, and the gear drives the screening through the ring gear. The cylinder rotates, and the driven wheel drives the driving wheel and the protective sleeve to rotate through the transmission belt, so that the screening work of the screening cylinder and the magnetic separation of the protective sleeve can be carried out synchronously;

S2. The corresponding two gears drive the same connecting shaft to rotate, and the cam connected to it also rotates. During the deflection of the cam, the U-shaped frame can be pushed by the arc-shaped push block, so that the U-shaped frame drives the two bottom parts. The first pressure roller is far away from the screening cylinder, and makes the U-shaped frame squeeze the elastic part;

S3. With the protruding end of the cam detached from the arc-shaped push block, the U-shaped frame quickly approaches the screening cylinder through the support of the elastic member and knocks the screening cylinder. Reciprocating in this way, through periodic knocking with the rotation of the screening cylinder, it can Shake off the waste attached to the sieve hole 1, sieve hole 2 and sieve hole 3;

S4. During the rotation of the screening cylinder, the waste material is continuously conveyed to the right with the spiral guide plate inside, and the waste discharged through the first screen hole, the second screen hole, the third screen hole and the opening at the right end of the screening cylinder contacts the protective cover. The protective cover rotates, and the conductive column in the protective cover is energized, electromagnet 1 and electromagnet 2 generate magnetism and absorb the metal waste in the waste, and the non-metallic waste rolls down the protective cover and slides from the inclined partition, and the protective cover absorbs The metal material continues to rotate, so that the scraper can concentrate the metal material;

S5. When the waste materials are concentrated in the position between the first electromagnet and the second electromagnet, the metal material will fall into the collection box by gravity, so that the purpose of sorting metal or non-metal waste can be achieved.

Compared with prior art, the beneficial effect of the present invention is:

1. In the present invention, by setting the motor to drive the gear and the driven wheel to rotate, the gear drives the screening cylinder to rotate through the ring gear and screens the crushed waste. Since there are three gears outside the ring gear, the corresponding two gears drive The same connecting shaft rotates, and the cam connected with it also rotates. During the deflection of the cam, the U-shaped frame can be pushed by the arc-shaped push block, so that the U-shaped frame drives the two pressure rollers at the bottom away from the screening cylinder. And make the U-shaped frame squeeze the elastic part, with the protruding end of the cam detached from the arc-shaped push block, the U-shaped frame quickly approaches the screening cylinder through the support of the elastic part and hits the screening cylinder, so reciprocating, by matching the screening cylinder Rotating and periodic knocking can shake off the waste attached to the first, second and third screen holes. Further, continuous knocking on the screening cylinder in three directions further improves the cleaning effect and meets multiple specifications. The high-quality requirements of waste screening are conducive to the recycling of waste.

2. In the present invention, the waste materials after screening are classified by setting the magnetic separation assembly, so that the waste materials discharged through the first sieve hole, the second sieve hole, the third sieve hole and the opening at the right end of the screening cylinder are in contact with the protective cover. The cover rotates, and the conductive column in the protective cover is energized, electromagnet 1 and electromagnet 2 generate magnetism and absorb the metal waste in the waste, and the non-metallic waste rolls down the protective cover and slides from the inclined partition, and the protective cover absorbs The metal material continues to rotate, so that the scraper can concentrate the metal material. Further, because the electromagnet 1 and the electromagnet 2 are combined into a T-shaped structure, when the waste is concentrated at the position between the electromagnet 1 and the electromagnet 2, At this time, the metal material falls into the collection box by gravity, so that the purpose of automatic metal or non-metal waste sorting can be realized, which is beneficial to the collection of waste.

3. In the present invention, the waste material is screened by setting the screening cylinder. Since the screening cylinder is provided with the first, second and third screen holes of different specifications, the waste material is continuously transported to the right with the spiral guide plate in the screening cylinder. , to achieve the purpose of multi-standard screening of waste materials, through the combination design of multi-specification sieve hole 1, sieve hole 2 and sieve hole 3, the screening efficiency is improved, and the screening effect is improved due to the uniform feeding of the spiral guide plate and the continuous rotation of the screening cylinder. Further, The screened waste is collected by a plurality of baffles 1 and 2, which facilitates subsequent waste sorting and greatly enhances its use effect.

4. In the present invention, by setting the motor to start the gear and the driven wheel to rotate, the gear drives the screening cylinder to rotate through the ring gear, and at the same time, the driven wheel drives the driving wheel and the protective sleeve to rotate through the transmission belt, so that the screening work of the screening cylinder and the magnetic protection of the protective sleeve can be achieved. The selection work can be carried out synchronously. Secondly, the gear and the connecting shaft are fixed and the linkage cam continues to work. Through a series of linkage structures, the operation stability of the processing device is greatly improved, and the use cost of waste processing is reduced.

Description of drawings

Fig. 1 is the three-dimensional structural representation of the present invention;

Fig. 2 is the structural representation that screening assembly of the present invention is connected with support frame;

Fig. 3 is the structural representation of collection box of the present invention;

Fig. 4 is the structural representation of the cross-section of the screening cylinder of the present invention;

Fig. 5 is a three-dimensional structural schematic view of the stent of the present invention;

Fig. 6 is a structural schematic diagram of the connection between the bracket and the blockage removal assembly of the present invention;

Fig. 7 is the structural representation of the section of magnetic separation assembly of the present invention;

Fig. 8 is a structural schematic diagram of the connection of the transmission assembly of the present invention;

Fig. 9 is a three-dimensional structural schematic diagram of the scraping assembly of the present invention;

In the figure: 1, bottom plate; 2, crushing box; 3, screening assembly; 301, screening cylinder; 302, spiral guide plate; 303, sieve hole one; 304, sieve hole two; 305, sieve hole three; 4, support frame ; 5, collection box; 6, ring gear; 7, gear; 8, connecting shaft; 9, support; 10, clearing assembly; 101, U-shaped frame; Elastic part; 105, arc-shaped push block; 11, sliding sleeve; 12, cam; 13, magnetic separation assembly; 131, protective cover; 132, conductive column; 133, electromagnet one; 134, electromagnet two; Component; 141, vertical plate; 142, driving wheel; 143, driven wheel; 144, transmission belt; 145, fixed plate; 15, motor; 16, scraper assembly; 161, scraper; 162, fixed shaft; 163, coil spring ; 17, inclined clapboard; 18, material retaining plate one; 19, material retaining plate two.

Detailed ways

The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

As shown in Figures 1-9, the present invention provides a technical solution: a construction waste processing device, including a bottom plate 1, a crushing box 2 is arranged on the upper surface of the bottom plate 1, a discharge port of the crushing box 2 and a screening assembly 3 Connected, the screening assembly 3 is provided with two support frames 4 through two bearings, the bottoms of the two support frames 4 are connected to the bottom plate 1, and a collection box 5 is provided below the screening assembly 3, and the lower surface of the collection box 5 is connected to the bottom plate 1 Connection, both sides outside the screening assembly 3 are provided with ring gear 6, and three gears 7 are meshed outside the ring gear 6, and the two opposite gears 7 are fixed with the same connecting shaft 8, because through the gear 7, the ring gear 6 and the The mutual cooperation between the cams 12 corresponds to the two gears 7 driving the same connecting shaft 8 to rotate, and the cam 12 connected to it also rotates accordingly, and can drive the blockage removal assembly 10 in three directions during the deflection process of the cam 12 The components work synchronously and cooperate with the continuous rolling of the screening cylinder 301, so as to further improve the blockage removal effect. The connecting shaft 8 is clamped with three cams 12, and the cam 12 is equipped with a blockage removal assembly 10. The three blockage removal assemblies 10 are arranged on the same On the support 9, the bottom of the support 9 is fixedly connected with the tops of the two support frames 4, the collecting box 5 is provided with a magnetic separation assembly 13, and the magnetic separation assembly 13 is overlapped with a scraper assembly 16, and the scraper assembly 16 is arranged on In the collection box 5.

Specifically, as shown in Fig. 2, Fig. 4 and Fig. 6, the screening assembly 3 includes a screening cylinder 301, the screening cylinder 301 is arranged in two support frames 4, and the screening cylinder 301 is provided with a spiral guide plate 302, by setting the spiral guide The plate 302 and the spiral guide plate 302 evenly feed the material and cooperate with the continuous rotation of the screening cylinder 301 to improve the screening effect. The screening cylinder 301 is equipped with a screen hole 1 303, a screen hole 2 304 and a screen hole 3 305, and the screen hole 1 303 and the screen hole 2 304 The pore diameters of the screen holes 305 and 305 are increased sequentially, and the screening efficiency is improved through the combined design of the multi-standard screen hole 1 303, the screen hole 2 304 and the screen hole 3 305. Two pressing rollers 102 are arranged at the bottom of the bottom, by setting the pressing rollers 102, the pressing rollers 102 can roll on the surface of the screening cylinder 301 after knocking the screening cylinder 301, reducing the frictional force between the screening cylinder 301 and the pressing rollers 102, without It will affect the normal screening work of the screening cylinder 301. The upper surface of the U-shaped frame 101 is fixedly connected with the bottom end of the U-shaped sliding column 103. The U-shaped sliding column 103 is arranged on the bracket 9 through two sliding sleeves 11, and the inner top of the bracket 9 The elastic part 104 is fixedly connected with the upper surface of the U-shaped frame 101, and by setting the elastic part 104, the elastic part 104 can support the U-shaped frame 101, so that the U-shaped frame 101 can quickly realize the knocking work to the screening cylinder 301, Increase the vibration intensity so as to improve the cleaning effect. The top of the U-shaped frame 101 is fixedly connected with an arc-shaped push block 105, and the bottom of the arc-shaped push block 105 overlaps with the cam 12. After the protruding end of the cam 12 breaks away from the arc-shaped push block 105, the support of the elastic member 104 makes the U-shaped frame 101 quickly approach the screening cylinder 301 and knock the screening cylinder 301, so reciprocating, by matching the rotation cycle of the screening cylinder 301 Permanent knocking, thereby improving the effect of clearing the screening cylinder 301.

Specifically, as shown in Figure 3, Figure 7 and Figure 8, the magnetic separation assembly 13 includes a protective cover 131, the protective cover 131 is provided with a conductive column 132, and the conductive column 132 is provided with an electromagnet 133 and an electromagnet through a conductive sleeve. Two 134, the end of the conductive column 132 away from the transmission assembly 14 passes through the protective sleeve 131 and is clamped on the collection box 5, the end of the transmission assembly 14 close to the collection box 5 is fixed with the protective sleeve 131, and the conductive sleeve is fixed on the protective sleeve 131 Inside, through the cooperation between the first electromagnet 133 and the second electromagnet 134, the first electromagnet 133 and the second electromagnet 134 are combined into a T-shaped structure. At this time, the metal material falls into the collection box 5 by gravity, thus the purpose of automatic metal or non-metal waste sorting can be realized. Electromagnet one 133 and electromagnet two 134 are fixed inside the protective cover 131, and electromagnet one 133 and electromagnet two 134 are combined into T-shaped structure, transmission assembly 14 comprises vertical plate 141, and the bottom of vertical plate 141 is fixed with base plate 1, and one side of vertical plate 141 is provided with driving wheel 142 and driven wheel 143, and driving wheel 142 and Driven wheel 143 is connected by transmission belt 144 transmission, by setting transmission assembly 14, driven wheel 143 in the transmission assembly 14 drives drive wheel 142 and protective cover 131 to rotate by transmission belt 144, makes the screening work of screening cylinder 301 and the magnetic separation of protective cover 131 The work can be carried out synchronously to improve the stability of waste processing and reduce the cost of processing and use. One end of the driving wheel 142 is fixed to the protective cover 131, and the top of one side of the vertical plate 141 is fixed to one side of the top bracket 9 through the fixed plate 145 Connection, the top of the screening assembly 3 is provided with a motor 15, the motor 15 is specifically a biaxial drive motor 15, one end of the motor 15 is fixedly connected to one of the gears 7, the other end of the motor 15 is fixedly connected to one end of the driven wheel 143, and the motor 15 The fuselage is embedded in the fixed plate 145 .

Specifically, as shown in Figure 2, Figure 3 and Figure 9, the bottom of the collection box 5 is provided with an inclined partition 17, the inclined partition 17 is inclined at an angle of 120 degrees and is located below the magnetic separation assembly 13, because the inclined partition is provided 17. The inclined partition 17 set at a large angle enables the falling waste to slide to the bottom of the collection box 5, and isolates the metal waste from the non-metallic waste to prevent confusion. The inclined partition 17 is located in front of the scraper assembly 16, and the collection box 5 The inside front and rear are respectively provided with three baffles one 18 and three baffles two 19, because there are one 18 and two 19 of baffles, the waste after screening is made up of a plurality of one 18 and two baffles. The baffle plate 2 19 is used for collection to facilitate the subsequent waste sorting work. The scraper assembly 16 includes a scraper 161. The top of the scraper 161 is designed in a circular arc and overlaps with the protective cover 131. Because there is a scraper 161 , the metal material adsorbed by the protective sleeve 131 rotates, so that the scraper 161 can concentrate and scrape off the metal material, which is convenient for the efficient collection of metal waste. The fixed shaft 162 is sleeved inside the scraper 161, and two A coil spring 163, the two ends of the coil spring 163 are fixed with the fixed shaft 162 and the scraper 161 respectively, and the two ends of the fixed shaft 162 are respectively fixed on both sides in the collection box 5, through the connection between the coil spring 163 and the scraper 161 Cooperate with each other, when the scraper 161 is concentrating metal scrap, the coil spring 163 plays a certain supporting and buffering role, which can deflect the scraper 161 at a certain angle and prevent the friction between the scraper 161 and the protective sleeve 131. Excessive force will damage the protective cover 131, and even cause the protective cover 131 to be stuck and unable to rotate.

A method for processing construction waste waste, comprising the following steps:

S1. When in use, put the construction waste waste into the crushing box 2 for crushing, and the crushed waste enters the screening cylinder 301. At this time, the motor 15 works, so that the motor 15 drives the gear 7 and the driven wheel 143 to rotate. The gear 7 drives the screening cylinder 301 to rotate through the ring gear 6, and the driven wheel 143 drives the driving wheel 142 and the protective sleeve 131 to rotate through the transmission belt 144, so that the screening work of the screening cylinder 301 and the magnetic separation work of the protective sleeve 131 can be carried out synchronously;

S2. The two gears 7 drive the same connecting shaft 8 to rotate, and the cam 12 connected to it also rotates. During the deflection process of the cam 12, the U-shaped frame 101 can be pushed by the arc-shaped push block 105, so that the U The frame 101 drives the two pressure rollers 102 at the bottom away from the screening cylinder 301, and makes the U-shaped frame 101 press the elastic member 104;

S3. With the protruding end of the cam 12 detached from the arc-shaped push block 105, the U-shaped frame 101 quickly approaches the screening cylinder 301 through the support of the elastic member 104 and knocks the screening cylinder 301, so reciprocating, by cooperating with the screening cylinder 301 to rotate Periodic knocking can shake off the waste attached to the first sieve hole 303, the second sieve hole 304 and the third sieve hole 305;

S4. During the rotation of the screening cylinder 301, cooperate with the spiral guide plate 302 in it to continuously convey the waste to the right, and discharge through the first sieve hole 303, the second sieve hole 304, the third sieve hole 305 and the opening at the right end of the screening cylinder 301 The waste material is in contact with the protective cover 131, the protective cover 131 rotates, and the conductive column 132 in the protective cover 131 is energized, the electromagnet 1 133 and the electromagnet 2 134 generate magnetism and adsorb the metal waste in the waste, and the non-metallic waste rolls down The protective cover 131 slides down from the inclined partition 17, and the metal material absorbed by the protective cover 131 continues to rotate, so that the scraper 161 can concentrate the metal material;

S5. When the waste materials are concentrated at the position between the first electromagnet 133 and the second electromagnet 134, the metal materials will fall into the collection box 5 by gravity, so that the purpose of sorting the metal or non-metal waste materials can be realized.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention based on specific situations.

The preferred implementation of this patent has been described in detail above, but this patent is not limited to the above-mentioned implementation. Within the scope of knowledge of those of ordinary skill in the art, various implementations can be made without departing from the purpose of this patent. kind of change.

Claims (10)

1. A construction waste waste processing device, comprising a base plate (1), characterized in that: the upper surface of the base plate (1) is provided with a crushing box (2), and the discharge port of the crushing box (2) is connected to the screen The components (3) are connected, and the screening component (3) is provided with two support frames (4) through two bearings, and the bottoms of the two support frames (4) are connected with the base plate (1), and the screening component (3) ) is provided with a collection box (5) below, the lower surface of the collection box (5) is connected to the bottom plate (1), and both sides of the screening assembly (3) are provided with ring gears (6). The ring gear (6) has three gears (7) meshed externally, and the two opposite gears (7) are fixed to the same connecting shaft (8), and the connecting shaft (8) is externally clamped with three cams (12). Described cam (12) is provided with unblocking assembly (10) outside, and three unblocking assemblies (10) are arranged on the same support (9), and the bottom end of described support (9) is connected with two supporting frames (4 ), the top of the collection box (5) is fixedly connected with a magnetic separation assembly (13), and the magnetic separation assembly (13) is overlapped with a scraper assembly (16), and the scraper assembly (16) Set in the collection box (5). 2. A construction waste processing device according to claim 1, characterized in that: the screening assembly (3) includes a screening cylinder (301), and the screening cylinder (301) is arranged on two supporting frames ( 4) Inside, the screening cylinder (301) is provided with a spiral guide plate (302), and the screening cylinder (301) is provided with a screen hole one (303), a screen hole two (304) and a screen hole three (305 ), the apertures of the first sieve hole (303), the second sieve hole (304) and the third sieve hole (305) increase sequentially. 3. A construction waste processing device according to claim 1, characterized in that: the blockage removal assembly (10) comprises a U-shaped frame (101), and the bottom of the U-shaped frame (101) is provided with Two pressure rollers (102), the upper surface of the U-shaped frame (101) is fixedly connected with the bottom end of the U-shaped strut (103), and the U-shaped strut (103) passes through two sliding sleeves (11) Set on the bracket (9). 4. A construction waste processing device according to claim 3, characterized in that: the inner top of the support (9) is fixedly connected to the upper surface of the U-shaped frame (101) through an elastic member (104), so that An arc-shaped push block (105) is fixedly connected to the inner top of the U-shaped frame (101), and the bottom of the arc-shaped push block (105) is overlapped with the cam (12). 5. A construction waste processing device according to claim 1, characterized in that: said magnetic separation assembly (13) comprises a protective cover (131), and said protective cover (131) is provided with a conductive column ( 132), described conductive column (132) is provided with electromagnet one (133) and electromagnet two (134) by conductive sleeve, and described electromagnet one (133) and electromagnet two (134) are connected with protective cover ( 131) internal fixation, the first electromagnet (133) and the second electromagnet (134) are combined into a T-shaped structure, and the end of the conductive column (132) away from the transmission assembly (14) passes through the protective sleeve (131) and is locked Connected to the collection box (5), the end of the transmission assembly (14) close to the collection box (5) is fixed with the protective cover (131), and the conductive sleeve is fixed in the protective cover (131). 6. A construction waste processing device according to claim 5, characterized in that: the transmission assembly (14) comprises a vertical plate (141), and the bottom of the vertical plate (141) is connected to the bottom plate (1) Fixed, one side of the vertical plate (141) is provided with a driving wheel (142) and a driven wheel (143), and the driving wheel (142) and the driven wheel (143) are connected by a transmission belt (144). One end of the wheel (142) is fixed with the protective cover (131), and the top of one side of the vertical plate (141) is fixedly connected with one side of the top bracket (9) through the fixing plate (145). 7. A construction waste processing device according to claim 1, characterized in that: the inner bottom of the collection box (5) is provided with an inclined partition (17), and the inclined partition (17) is inclined 120 degree angle and located below the magnetic separation assembly (13), the inclined partition (17) is located in front of the scraper assembly (16), and the front and rear of the collection box (5) are respectively provided with three baffle plates. (18) and three baffles two (19). 8. A construction waste processing device according to claim 5, characterized in that: the scraper assembly (16) includes a scraper (161), and the top of the scraper (161) is arc-shaped Designed and overlapped with the protective sleeve (131), the scraper (161) is sleeved with a fixed shaft (162), and the fixed shaft (162) is sleeved with two coil springs (163). The two ends of spring (163) are fixed with fixed shaft (162) outside and scraper (161) respectively, and the two ends of described fixed shaft (162) are fixed respectively in the both sides in collecting box (5). 9. A construction waste processing device according to claim 6, characterized in that: a motor (15) is provided above the screening assembly (3), and the motor (15) is specifically a biaxial drive motor (15), one end of the motor (15) is fixedly connected to one of the gears (7), the other end of the motor (15) is fixedly connected to an end of the driven wheel (143), and the motor (15) body Embedded in the fixed plate (145). 10. A construction waste processing method, a construction waste processing device according to any one of claims 1-9, characterized in that it comprises the following steps: S1. When in use, put the construction waste waste into the crushing box (2) for crushing, and the crushed waste enters the screening cylinder (301), at this time the motor (15) starts to work, so that the motor (15) drives The gear (7) and the driven wheel (143) rotate, the gear (7) drives the screening cylinder (301) to rotate through the ring gear (6), and the driven wheel (143) drives the driving wheel (142) and the protective sleeve through the transmission belt (144) at the same time (131) rotates, and the screening work of screening cylinder (301) and the magnetic separation work of protective cover (131) can be carried out synchronously; S2, the corresponding two gears (7) drive the same connecting shaft (8) to rotate, and the cam (12) connected to it also rotates, and the arc-shaped push block (105) can pass through the deflection process of the cam (12) ) to push the U-shaped frame (101), so that the U-shaped frame (101) drives the two pressing rollers (102) at the bottom away from the screening cylinder (301), and makes the U-shaped frame (101) squeeze the elastic member (104); S3, after the protruding end of the cam (12) breaks away from the arc-shaped push block (105), the U-shaped frame (101) is quickly approached to the screening cylinder (301) by the support of the elastic member (104) and knocks the screening cylinder ( 301), reciprocating in this way, by cooperating with the rotating periodic knocking of the screening cylinder (301), the waste attached to the first sieve hole (303), the second sieve hole (304) and the third sieve hole (305) can be shaken off; S4. During the rotation of the screening cylinder (301), the waste material is continuously transported to the right with the help of the spiral guide plate (302) inside, passing through the first sieve hole (303), the second sieve hole (304), and the third sieve hole (305) ) and the waste material discharged from the opening at the right end of the screening cylinder (301) contacts the protective cover (131), the protective cover (131) rotates, and the conductive column (132) in the protective cover (131) is energized, electromagnet one (133) and The second electromagnet (134) generates magnetism and absorbs the metal waste in the waste, while the non-metal waste rolls down the protective cover (131) and slides off from the inclined partition (17), and the metal material absorbed by the protective cover (131) continues to Rotate so that the scraper (161) can concentrate the metal material; S5, when the waste material is concentrated in the position between the electromagnet one (133) and the electromagnet two (134), the metal material then falls into the collection box (5) by gravity at this moment, thus it can realize the metal or non-metal waste material The purpose of sorting.

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