Classification device for construction waste and classification method thereof

Abstract

The invention relates to the technical field of construction waste classification, and discloses a construction waste classification device and a classification method.The construction waste classification device comprises a base, a plurality of supports are rotationally arranged on the base, and a screening box is arranged on the supports; the screening box is obliquely arranged, a feeding port is formed in the upper end of the screening box, and an opening is formed in the lower end of the screening box. A collecting hopper is arranged on the base and located on the lower side of the screening box, and a vibration motor is arranged on the screening box. A screening mechanism is further arranged on the base and comprises a belt, the belt is slidably connected to the lower end of the screening box, and a plurality of screening holes are formed in the belt; according to the classifying device for the construction waste and the classifying method of the classifying device, the belt conveyor and the vibrating screen are combined, the construction waste of different sizes is screened through the belts with the screening holes of different sizes, the occupied area of the screening device is greatly reduced, and the classifying device can be used in various fields without limitation.

Description

Technical Field

[0001] The invention relates to the technical field of building waste classification, and in particular to a building waste classification device and a classification method thereof. Background Art

[0002] Construction waste refers to the waste generated during the construction, laying, demolition and repair of various buildings, structures, pipe networks, etc. by construction units or individuals. Waste concrete, waste bricks and stones and other waste in construction waste have recycling value.

[0003] The recycling of construction waste usually requires multiple processes, one of which is to screen the construction waste according to volume. In the prior art, the method of screening construction waste is usually to use a linear vibrating screen to make the construction waste roll along a screen with successively larger screen holes on the surface. During the rolling process, construction waste of different volumes falls through the screen holes in turn for collection.

[0004] However, this screening method requires that the length of the linear vibrating screen be set longer, or that multiple linear vibrating screens with different mesh sizes be combined and set up. Regardless of which setting method is used, the floor space occupied is large, resulting in limited use of the screening process space, which is not conducive to production.

[0005] Therefore, in order to solve the above technical problems existing in the prior art, a classification device and a classification method for construction waste are proposed. Summary of the invention

[0006] The present invention provides a classification device for construction waste and a classification method thereof. The device combines a belt conveyor and a vibrating screen to screen construction waste of different sizes using a belt with sieve holes of different sizes, thereby greatly reducing the floor space occupied by the screening device and achieving the beneficial effect of being able to be used in various venues without restriction. The device solves the problem that the prior art mentioned in the above background technology generally uses a linear vibrating screen to screen construction waste, which requires the length of the linear vibrating screen to be set larger, or a plurality of linear vibrating screens with different mesh sizes to be combined and set. Regardless of which setting method is used, the floor space occupied is larger, resulting in the use of the screening process being limited, which is not conducive to production.

[0007] The present invention provides the following technical solution: a construction waste classification device, comprising a base, a plurality of brackets rotatably arranged on the base, and a plurality of the brackets are provided with screening boxes;

[0008] The screening box is arranged in an inclined manner, a feed port is provided at the upper end of the screening box, and an opening is provided at the lower end of the screening box;

[0009] A collecting hopper is provided on the base, and the collecting hopper is located at the lower side of the screening box, and a vibration motor is provided on the screening box;

[0010] The base is also provided with a screening mechanism, which includes a belt, which is slidably connected to the lower end of the screening box, and has a plurality of screening holes.

[0011] After the material is put into the screening box through the feed port, the material is vibrated and screened by the cooperation of the vibration motor and the belt.

[0012] As an optional solution of the construction waste classification device of the present invention, the plurality of sieve holes are divided into three groups along the counterclockwise direction on the belt, the three groups of sieve holes are the first sieve hole, the second sieve hole and the third sieve hole in sequence, and the hole areas of the first sieve hole, the second sieve hole and the third sieve hole increase in sequence, so as to classify the materials by volume;

[0013] Two first pulleys are rotatably arranged on the base, and two second pulleys are rotatably arranged in the screening box. The two first pulleys and the two second pulleys are transmission connected via the belt. A first motor is also arranged on the base, and the output shaft of the first motor is connected to one of the first pulleys.

[0014] As an optional solution of the construction waste classification device of the present invention, the part of the belt located in the screening box is V-shaped, and two fixing frames are symmetrically arranged in the screening box, and the two fixing frames are both attached to the upper surface of the belt;

[0015] Two first supporting mechanisms and two second supporting mechanisms are symmetrically arranged in the screening box, and the two first supporting mechanisms and the two second supporting mechanisms are used to support the lower surface of the belt.

[0016] As an optional solution of the construction waste classification device described in the present invention, the first supporting mechanism includes a plurality of first supporting seats arranged in the screening box, a plurality of first supporting seats are rotatably provided with first supporting wheels, and a plurality of first supporting wheels are attached to the lower surface of the belt;

[0017] The second supporting mechanism includes a plurality of second supporting seats and a plurality of second supporting wheels arranged in the screening box, a plurality of second supporting seats are rotatably provided with a swivel seat, one end of a plurality of second supporting wheels are rotatably connected to a plurality of the swivel seats respectively, and a plurality of second supporting wheels are attached to the lower surface of the belt.

[0018] As an optional solution of the classification device for construction waste described in the present invention, the second supporting mechanism also includes a plurality of bearing seats arranged in the screening box, a plurality of the bearing seats are rotatably provided with cranks, a plurality of the cranks are rotatably provided with connecting rods, a plurality of the connecting rods are provided with connecting shafts, a plurality of the connecting shafts are slidably provided with sliding seats, and the other ends of a plurality of the second supporting wheels are rotatably connected to a plurality of the sliding seats respectively.

[0019] As an optional solution of the classification device for construction waste described in the present invention, a driving mechanism is also arranged in the screening box, and the driving mechanism includes a second motor arranged in the screening box, and the output shaft of the second motor is connected to one of the cranks, and the two adjacent cranks are connected by a belt transmission device.

[0020] As an optional solution of the construction waste classification device of the present invention, wherein: the screening mechanism further comprises a first supporting assembly, the first supporting assembly comprises a third pulley, and the belt is slidably connected to the third pulley;

[0021] Two first support rods are symmetrically arranged on the base, and first sliding rods are slidably arranged on the two first support rods. The two first sliding rods are elastically connected to the two first support rods through two first springs respectively, and the third pulley is rotatably connected to the two first sliding rods.

[0022] As an optional solution of the construction waste classification device of the present invention, wherein: the screening mechanism further includes a second support assembly, the second support assembly includes a fourth pulley and two second support rods, and the belt is slidably connected to the fourth pulley;

[0023] A second sliding rod is slidably arranged on the two second support rods, the two second sliding rods are elastically connected to the two second support rods through two second springs respectively, and the fourth pulley is rotatably connected to the two second sliding rods.

[0024] As an optional solution of the construction waste classification device described in the present invention, the second support assembly also includes two third support rods symmetrically arranged on the base, the two second support rods are respectively slidably connected to the two third support rods, and a cylinder is arranged on the base, and the piston rod of the cylinder is connected to one of the second support rods.

[0025] The present invention also provides the following technical solution: a classification method for construction waste using a classification device, comprising the following steps:

[0026] S1, control the vibration motor to make the screening box vibrate, and control the first motor to drive the belt to slide clockwise, then put the construction waste into the screening box from the feed inlet, the material rolls down along the belt surface, and at the same time, the second motor drives a plurality of second supporting wheels to swing back and forth to continuously throw part of the material that has rolled to the lower side of the belt back to the upper side of the belt, so that the part of the material with particles smaller than the first sieve hole falls through the first sieve hole into the collecting hopper for collection;

[0027] S2. The belt continues to slide clockwise, so that the part of the belt with the second sieve holes enters the screening box, so that the part of the material with particles smaller than the second sieve holes falls through the second sieve holes into the collecting hopper for collection, and then the part of the belt with the third sieve holes enters the screening box, and then the part of the material with particles smaller than the third sieve holes falls through the third sieve holes into the collecting hopper for collection.

[0028] The present invention has the following beneficial effects:

[0029] 1. The classification device and classification method for construction waste utilizes a belt with sieve holes to replace the screen of a linear vibrating screen to classify construction waste by volume. The construction waste rolls downward along the inclined direction of the belt for vibration screening, and a number of groups of sieve holes with increasing apertures are sequentially provided on the sliding belt, so that the materials are screened in order from small to large in volume. Compared with the linear vibrating screen of the prior art, in order to make the screening more sufficient and to classify and screen by volume, the length of the sieve needs to be set longer. This device can greatly save the floor space of the device, so that the device can be used freely without being restricted by most sites, saving production resources.

[0030] 2. The construction waste classification device and classification method thereof can be used for screening with a static belt and vibration, or can be used for screening with vibration while the belt is sliding slowly. The sliding of the belt can accelerate the material to roll obliquely downward, so that the material is not only affected by gravity and vibration, but also by the friction and inertia of the belt, so that the material can roll more violently to increase the chance of contact with the sieve hole, thereby better screening.

[0031] 3. The construction waste classification device and classification method thereof, the part of the belt sliding in the belt is set in an inclined V-shape, and is shaped by applying a force on the upper and lower surfaces of the belt. Its function is that, since the total rolling distance of the material is reduced, the supporting wheels set in the downhill section of the V-shaped part of the belt are driven by a group of reciprocating mechanisms to swing back and forth, and the reciprocating swing of multiple supporting wheels can push the belt to form multiple protrusions. During the belt protrusion process, the material rolling downhill can be thrown obliquely upward, so that the material rolls in a larger range. And the material goes through the rolling process again, and the screening can be completed more fully. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0033] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention.

[0034] Figure 3 It is a schematic diagram of the exploded structure of the base part in the present invention.

[0035] Figure 4 It is a schematic diagram of the explosion structure of the screening mechanism in the present invention.

[0036] Figure 5 It is a schematic diagram of the exploded structure of the first supporting assembly and the second supporting assembly in the present invention.

[0037] Figure 6 It is a structural schematic diagram of the belt in the present invention.

[0038] Figure 7 It is a schematic diagram of the structure of the first supporting mechanism and the second supporting mechanism in the present invention.

[0039] Figure 8 It is a schematic diagram of the explosion structure of the second supporting mechanism in the present invention.

[0040] In the figure: 100, base; 110, bracket; 120, screening box; 130, feed port; 140, collecting hopper; 150, vibration motor; 160, fixing frame; 200, screening mechanism; 210, belt; 220, sieve hole; 221, first sieve hole; 222, second sieve hole; 223, third sieve hole; 230, first pulley; 240, second pulley; 250, first motor; 260, first supporting assembly; 261, third pulley; 262, first supporting rod; 263, first sliding rod; 264, first spring; 270, second supporting rod Support assembly; 271, fourth pulley; 272, second support rod; 273, second slide rod; 274, second spring; 275, third support rod; 276, cylinder; 300, first supporting mechanism; 310, first supporting seat; 320, first supporting wheel; 400, second supporting mechanism; 410, second supporting seat; 420, second supporting wheel; 430, swivel seat; 440, bearing seat; 450, crank; 460, connecting rod; 470, connecting shaft; 480, slide seat; 500, driving mechanism; 510, second motor; 520, belt transmission device. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] For example, see Figure 1-Figure 3 , a classification device for construction waste, comprising a base 100, a plurality of brackets 110 are rotatably arranged on the base 100, and a screening box 120 is arranged on the plurality of brackets 110;

[0043] The screening box 120 is arranged in an inclined manner, a feed port 130 is provided at the upper end of the screening box 120, and the lower end of the screening box 120 is open;

[0044] A collecting hopper 140 is provided on the base 100, and the collecting hopper 140 is located at the lower side of the screening box 120, and a vibration motor 150 is provided on the screening box 120;

[0045] The base 100 is also provided with a screening mechanism 200, which includes a belt 210, which is slidably connected to the lower end of the screening box 120, and a plurality of screening holes 220 are provided on the belt 210;

[0046] After the material is put into the screening box 120 through the feed port 130 , the material is vibrated and screened by the cooperation of the vibration motor 150 and the belt 210 .

[0047] In this embodiment: the screen mesh installed at the lower end of the screening box 120 of the linear vibrating screen is usually fixed, but in this device, a belt 210 is used to replace the screen mesh.

[0048] Specifically, four brackets 110 are installed at the four corners of the base 100, and the four brackets 110 can swing within a certain range based on the axis in the front-back direction, and a screening box 120 tilted to the lower right is installed on the four brackets 110. The base 100 and the brackets 110 can be connected through a shock-absorbing shaft to reduce the vibration of the base 100.

[0049] The vibration motor 150 installed on the screening box 120 is operated to make the screening box 120 generate a linear vibration tilted to the lower right. When the construction waste is put into the screening box 120 from the feed port 130, it will fall on the upper surface of the belt 210 and then be driven by the vibration of the screening box 120 to roll to the lower right. During the rolling process, the construction waste can be screened through the sieve holes 220.

[0050] Embodiment 2: This embodiment is an improvement on Embodiment 1. For details, please refer to Figure 1-Figure 4 , a plurality of sieve holes 220 are divided into three groups along the counterclockwise direction on the belt 210, and the three groups of sieve holes 220 are the first sieve hole 221, the second sieve hole 222 and the third sieve hole 223, and the hole areas of the first sieve hole 221, the second sieve hole 222 and the third sieve hole 223 are increased in sequence, so that the materials are classified by volume;

[0051] Two first pulleys 230 are rotatably provided on the base 100, and two second pulleys 240 are rotatably provided in the screening box 120. The two first pulleys 230 and the two second pulleys 240 are connected to each other through a belt 210. A first motor 250 is also provided on the base 100, and an output shaft of the first motor 250 is connected to one of the first pulleys 230.

[0052] In this embodiment: In order to further classify the construction waste by volume, first, the belt 210 can slide clockwise along the lower end of the screening box 120. The front and rear ends of the belt 210 in the screening box 120 are both in contact with the front and rear inner walls of the screening box 120, so that the construction waste will not leak out from the part outside the sieve hole 220. The belt 210 slides out from the right end of the screening box 120, and the right end of the screening box 120 is in contact with the belt 210, so that the construction waste will not leak out. In addition, the left and right ends of the screening box 120 can be set as openable and closable doors. When the final screening is completed, if there is still residual construction waste on the belt 210, the residual waste can be cleaned up by opening the left and right ends of the screening box 120.

[0053] Then, the sieve holes 220 provided on the belt 210 are divided into three groups in a counterclockwise order, namely, the first sieve hole 221, the second sieve hole 222 and the third sieve hole 223, and the size of the holes in each group increases successively.

[0054] The material first contacts the first sieve hole 221 with the smallest hole. At this time, in addition to the vibration motor 150 driving the screening box 120 to vibrate and make the material roll to the lower right, the belt 210 itself can also be driven by the first motor 250 to slide clockwise, and the sliding speed is controlled to be slower to match the linear vibration of the screening box 120, so that the material rolls faster and a more complex collision process occurs, which is conducive to the materials of different stacking heights rolling to the lower side to contact the first sieve hole 221.

[0055] The smallest part of the material screened by the first sieve hole 221 falls into the collecting hopper 140, and the batch of construction waste can be collected manually or mechanically at the lower side of the collecting hopper 140. Then the belt 210 with the second sieve hole 222 slides into the screening box 120 to screen the larger part of the construction waste. Finally, the belt 210 with the third sieve hole 223 slides into the screening box 120 to screen the larger part of the construction waste.

[0056] It should be supplemented that the mesh holes 220 can be rectangular holes as shown in the figure, or can be other shapes. The mesh holes 220 can be more than three groups according to the classification requirements.

[0057] In addition, the length of the belt 210 can be further increased by adding pulleys and performing multi-layer bending to meet higher screening requirements with a smaller device volume.

[0058] Embodiment 3: This embodiment is an improvement made on the basis of Embodiment 1. For details, please refer to Figure 2-Figure 8 The portion of the belt 210 located in the screening box 120 is V-shaped, and two fixing frames 160 are symmetrically arranged in the screening box 120, and the two fixing frames 160 are both attached to the upper surface of the belt 210;

[0059] Two first supporting mechanisms 300 and two second supporting mechanisms 400 are symmetrically arranged in the screening box 120. The two first supporting mechanisms 300 and the two second supporting mechanisms 400 are used to support the lower surface of the belt 210.

[0060] The first supporting mechanism 300 includes a plurality of first supporting seats 310 disposed in the screening box 120, and a first supporting wheel 320 is rotatably disposed on each of the plurality of first supporting seats 310, and each of the plurality of first supporting wheels 320 is attached to the lower surface of the belt 210;

[0061] The second supporting mechanism 400 includes a plurality of second supporting seats 410 and a plurality of second supporting wheels 420 arranged in the screening box 120, and a rotating seat 430 is rotatably arranged on each of the second supporting seats 410, and one end of each of the second supporting wheels 420 is rotatably connected to each of the rotating seats 430, and each of the second supporting wheels 420 is attached to the lower surface of the belt 210.

[0062] In this embodiment, in order to make the screening of materials more thorough, the screen needs to be set very long so that all the materials can contact the screen as much as possible during the long-distance rolling process.

[0063] In the present device, the first supporting mechanism 300 and the second supporting mechanism 400 are arranged to allow the material to roll from the upper left side to the lower right side on the surface of the belt 210 and then be thrown back to the upper left side. Through the reciprocating throwing and falling, the longer screen is replaced and the length of the screening box 120 is reduced.

[0064] Specifically, as shown in the figure, the portion of the belt 210 that slides into the screening box 120 is U-shaped in the front-to-back direction, which is used to better concentrate the materials in the middle to contact the screen hole 220. The belt 210 is inclined in the left-right direction.

[0065] On the upper surface of the belt 210, both the front and rear parts are pressed together by the fixing frame 160, so that the belt 210 maintains the V-shape. On the lower surface of the belt 210, located on the left oblique side of the V-shaped part, there are a plurality of first supporting wheels 320 symmetrically arranged in the front and rear for support. The plurality of first supporting wheels 320 slide and roll with the belt 210, playing the role of supporting the belt 210 and pressing the belt 210 to keep its shape.

[0066] On the right side of the V-shaped part of the belt 210, there are several second supporting wheels 420 symmetrically supported. Several first supporting wheels 320 are fixedly mounted on several first supporting seats 310, and on several second supporting seats 410, the rotating seats 430 rotate in a direction perpendicular to the right side of the V-shaped inclined side. The second supporting wheels 420 can swing up and down based on the rotating seats 430 to drive part of the belt 210 to rise and fall in a cycle, and part of the material will be thrown to the upper left during the process of the belt 210 rising.

[0067] Embodiment 4: This embodiment is an improvement on Embodiment 3. For details, please refer to Figure 2-Figure 8 The second supporting mechanism 400 further includes a plurality of bearing seats 440 disposed in the screening box 120, a plurality of bearing seats 440 are rotatably provided with cranks 450, a plurality of cranks 450 are rotatably provided with connecting rods 460, a plurality of connecting rods 460 are provided with connecting shafts 470, a plurality of connecting shafts 470 are slidably provided with slide seats 480, and the other ends of the plurality of second supporting wheels 420 are rotatably connected to the plurality of slide seats 480 respectively;

[0068] A driving mechanism 500 is also provided in the screening box 120 , and the driving mechanism 500 includes a second motor 510 provided in the screening box 120 , an output shaft of the second motor 510 is connected to one of the cranks 450 , and two adjacent cranks 450 are connected in transmission via a belt transmission device 520 .

[0069] In this embodiment: the operation of the second motor 510 can drive the cranks 450 connected thereto to rotate, and transmission is achieved between every two cranks 450 through a belt transmission device 520 composed of a belt and a pulley, thereby driving all the cranks 450 to rotate.

[0070] The crank 450 is U-shaped, and a connecting rod 460 is rotatably mounted in its concave part. Since the connecting rod 460 is connected to the second supporting wheel 420, when the second supporting wheel 420 rotates based on the rotation seat 430, the continuously rotating crank 450 will drive the connecting rod 460 to make reciprocating linear motion based on the axis of the second supporting wheel 420, thereby driving the second supporting wheel 420 to swing back and forth. When the second supporting wheel 420 swings, the slide seat 480 will slide back and forth on the connecting shaft 470.

[0071] Embodiment 5: This embodiment is an improvement made on the basis of Embodiment 4. For details, please refer to Figure 1-Figure 5 The screening mechanism 200 further includes a first supporting assembly 260, the first supporting assembly 260 includes a third pulley 261, and the belt 210 is slidably connected to the third pulley 261;

[0072] Two first support rods 262 are symmetrically arranged on the base 100, and first slide rods 263 are slidably arranged on the two first support rods 262. The two first slide rods 263 are elastically connected to the two first support rods 262 through two first springs 264 respectively, and the third pulley 261 is rotatably connected to the two first slide rods 263;

[0073] The screening mechanism 200 further includes a second supporting assembly 270, the second supporting assembly 270 includes a fourth pulley 271 and two second supporting rods 272, and the belt 210 is slidably connected to the fourth pulley 271;

[0074] The two second support rods 272 are both slidably provided with second slide rods 273, the two second slide rods 273 are elastically connected to the two second support rods 272 through two second springs 274 respectively, and the fourth pulley 271 is rotatably connected to the two second slide rods 273;

[0075] The second support assembly 270 also includes two third support rods 275 symmetrically arranged on the base 100, and the two second support rods 272 are respectively slidably connected to the two third support rods 275. A cylinder 276 is arranged on the base 100, and the piston rod of the cylinder 276 is connected to one of the second support rods 272.

[0076] In this embodiment, in order to better support the belt 210 to slide clockwise and to reduce the influence of the vibration of the screening box 120 on the transmission of the belt 210, a first support assembly 260 and a second support assembly 270 are additionally provided.

[0077] In the first supporting assembly 260, the third pulley 261 also rotates as the belt 210 slides clockwise, and the third pulley 261 supports the portion of the belt 210 between the first pulley 230 and the second pulley 240 on the left side to a certain arc for tensioning, thereby achieving a better transmission of the belt 210. The third pulley 261 and the two first slide bars 263 are provided with a certain elastic force by the first spring 264, and can shake within a small range, thereby achieving a shock-absorbing effect.

[0078] The second support assembly 270 has the same partial structure as the first support assembly 260, and the fourth pulley 271 supports the portion of the belt 210 between the first pulley 230 and the second pulley 240 on the right side to a certain arc for tensioning. The difference is that, considering that a plurality of second supporting wheels 420 are swinging to push the belt 210 to form a plurality of protrusions, the overall tension of the belt 210 will change. At this time, the cylinder 276 can drive the second support rod 272 to slide along the third support rod 275 to shorten a section, so that the arc of the portion of the belt 210 between the first pulley 230 and the second pulley 240 on the right side supported by the fourth pulley 271 is reduced, which plays a role in adjusting the tension.

[0079] Example 6, please refer to Figure 1-Figure 8 , a classification method for construction waste using a classification device, comprising the following steps:

[0080] S1, control the vibration motor 150 to make the screening box 120 vibrate, and control the first motor 250 to drive the belt 210 to slide clockwise, and then put the construction waste materials into the screening box 120 from the feed port 130, and the materials roll downward along the surface of the belt 210. At the same time, the second motor 510 drives a plurality of second supporting wheels 420 to swing back and forth and continuously throw part of the materials that roll to the lower side of the belt 210 back to the upper side of the belt 210, so that the part of the particles in the materials that are smaller than the first sieve hole 221 falls through the first sieve hole 221 into the collecting hopper 140 for collection;

[0081] S2. The belt 210 continues to slide clockwise, so that the part of the belt 210 with the second sieve holes 222 enters the screening box 120, so that the part of the material with particles smaller than the second sieve holes 222 falls through the second sieve holes 222 into the collecting hopper 140 for collection, and then the part of the belt 210 with the third sieve holes 223 enters the screening box 120, and then the part of the material with particles smaller than the third sieve holes 223 falls through the third sieve holes 223 into the collecting hopper 140 for collection.

[0082] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0083] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A construction waste classification device, comprising a base (100), characterized in that: A plurality of brackets (110) are rotatably arranged on the base (100), and a screening box (120) is arranged on the plurality of brackets (110); The screening box (120) is arranged in an inclined manner, a feed inlet (130) is provided at the upper end of the screening box (120), and the lower end of the screening box (120) is open; A collecting hopper (140) is provided on the base (100), and the collecting hopper (140) is located at the lower side of the screening box (120), and a vibration motor (150) is provided on the screening box (120); A screening mechanism (200) is also provided on the base (100), and the screening mechanism (200) comprises a belt (210), the belt (210) is slidably connected to the lower end of the screening box (120), and a plurality of screening holes (220) are provided on the belt (210); After the material is put into the screening box (120) through the feed port (130), the material is vibrated and screened by the coordinated operation of the vibration motor (150) and the belt (210).

2. A construction waste classification device according to claim 1, characterized in that: A plurality of the sieve holes (220) are divided into three groups along a counterclockwise direction on the belt (210), the three groups of the sieve holes (220) being a first sieve hole (221), a second sieve hole (222) and a third sieve hole (223) in sequence, and the hole areas of the first sieve hole (221), the second sieve hole (222) and the third sieve hole (223) are increased in sequence, so that the materials are classified according to volume; Two first pulleys (230) are rotatably arranged on the base (100), and two second pulleys (240) are rotatably arranged in the screening box (120). The two first pulleys (230) and the two second pulleys (240) are connected in transmission via the belt (210). A first motor (250) is also arranged on the base (100), and an output shaft of the first motor (250) is connected to one of the first pulleys (230).

3. A construction waste classification device according to claim 1, characterized in that: The portion of the belt (210) located in the screening box (120) is V-shaped, and two fixing frames (160) are symmetrically arranged in the screening box (120), and the two fixing frames (160) are both attached to the upper surface of the belt (210); Two first supporting mechanisms (300) and two second supporting mechanisms (400) are also symmetrically arranged in the screening box (120), and the two first supporting mechanisms (300) and the two second supporting mechanisms (400) are used to support the lower surface of the belt (210).

4. A construction waste classification device according to claim 3, characterized in that: The first supporting mechanism (300) comprises a plurality of first supporting seats (310) arranged in the screening box (120), a first supporting wheel (320) being rotatably arranged on each of the first supporting seats (310), and a plurality of the first supporting wheels (320) being attached to the lower surface of the belt (210); The second supporting mechanism (400) comprises a plurality of second supporting seats (410) and a plurality of second supporting wheels (420) arranged in the screening box (120); a plurality of second supporting seats (410) are rotatably provided with a rotating seat (430); one end of a plurality of second supporting wheels (420) are rotatably connected to a plurality of the rotating seats (430); and a plurality of second supporting wheels (420) are attached to the lower surface of the belt (210).

5. A construction waste classification device according to claim 4, characterized in that: The second supporting mechanism (400) also includes a plurality of bearing seats (440) arranged in the screening box (120), a plurality of the bearing seats (440) are rotatably provided with cranks (450), a plurality of the cranks (450) are rotatably provided with connecting rods (460), a plurality of the connecting rods (460) are provided with connecting shafts (470), a plurality of the connecting shafts (470) are slidably provided with slide seats (480), and the other ends of a plurality of the second supporting wheels (420) are rotatably connected to a plurality of the slide seats (480).

6. A construction waste classification device according to claim 5, characterized in that: A driving mechanism (500) is also provided in the screening box (120), and the driving mechanism (500) comprises a second motor (510) provided in the screening box (120), an output shaft of the second motor (510) being connected to one of the cranks (450), and two adjacent cranks (450) being connected in transmission via a belt transmission device (520).

7. A construction waste classification device according to claim 2, characterized in that: The screening mechanism (200) further comprises a first supporting assembly (260), wherein the first supporting assembly (260) comprises a third pulley (261), and the belt (210) is slidably connected to the third pulley (261); Two first support rods (262) are symmetrically arranged on the base (100), and first sliding rods (263) are slidably arranged on the two first support rods (262). The two first sliding rods (263) are elastically connected to the two first support rods (262) through two first springs (264) respectively, and the third pulley (261) is rotatably connected to the two first sliding rods (263).

8. A construction waste classification device according to claim 7, characterized in that: The screening mechanism (200) further comprises a second supporting assembly (270), wherein the second supporting assembly (270) comprises a fourth pulley (271) and two second supporting rods (272), and the belt (210) is slidably connected to the fourth pulley (271); A second slide bar (273) is slidably arranged on each of the two second support bars (272); the two second slide bars (273) are elastically connected to the two second support bars (272) via two second springs (274), respectively; and the fourth pulley (271) is rotatably connected to the two second slide bars (273).

9. A construction waste classification device according to claim 8, characterized in that: The second support assembly (270) further comprises two third support rods (275) symmetrically arranged on the base (100), the two second support rods (272) being slidably connected to the two third support rods (275) respectively, and a cylinder (276) being arranged on the base (100), the piston rod of the cylinder (276) being connected to one of the second support rods (272).

10. A classification method for construction waste using a classification device according to any one of claims 1 to 9, characterized in that: The steps include: S1, controlling the vibration motor (150) to operate so that the screening box (120) vibrates, and controlling the first motor (250) to operate so that the belt (210) slides clockwise, and then feeding the construction waste into the screening box (120) from the feed port (130), so that the material rolls downward along the surface of the belt (210), and at the same time, the second motor (510) drives a plurality of second supporting wheels (420) to swing back and forth to continuously throw part of the material that rolls to the lower side of the belt (210) back to the upper side of the belt (210), so that the part of the material whose particles are smaller than the first sieve hole (221) falls through the first sieve hole (221) into the collecting hopper (140) for collection; S2, the belt (210) continues to slide clockwise, so that the part of the belt (210) with the second sieve holes (222) enters the screening box (120), so that the part of the particles in the material smaller than the second sieve holes (222) falls through the second sieve holes (222) into the collecting hopper (140) for collection, and then the part of the belt (210) with the third sieve holes (223) enters the screening box (120), and then the part of the particles in the material smaller than the third sieve holes (223) falls through the third sieve holes (223) into the collecting hopper (140) for collection.

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