Construction waste recycling and processing equipment

Abstract

This invention discloses a construction waste recycling and processing device, comprising: a processing component, a roller assembly, a first coil assembly, a second coil assembly, and a controller. The processing component is used to contain construction waste for centralized recycling. The roller assembly, located within the processing component, crushes the construction waste into aggregate. Since construction waste includes both metallic and non-metallic waste, after crushing, it will also include magnetic and non-magnetic aggregates; for example, crushed reinforced concrete yields reinforcing steel aggregate and concrete aggregate. The first and second coil assemblies are used to extract magnetic aggregate, separating it from non-magnetic aggregate, and enabling continuous adsorption of magnetic aggregate. The construction waste recycling and processing device in this embodiment can efficiently separate magnetic and non-magnetic aggregate, improving separation efficiency. This invention is applied in the field of construction waste recycling.

Description

Technical Field

[0001] This invention relates to the field of construction waste recycling, and particularly to a construction waste recycling and processing device. Background Technology

[0002] Construction waste refers to the general term for slag, waste concrete, waste bricks and stones, and other waste generated during demolition, construction, decoration, and repair activities in the construction industry. Classified by composition, construction waste can be divided into slag, concrete blocks, crushed stone, brick and tile fragments, waste mortar, mud, asphalt blocks, waste plastics, waste metal, and waste bamboo and wood. Among these, waste metal is a relatively valuable recyclable material from construction waste. Related technologies often use electromagnets to directly attract metal materials. After attraction, the electromagnet is transferred to a dedicated metal recovery chamber or a separate metal recovery box. Then, the electromagnet is de-energized, causing the attracted metal to fall into the recovery chamber, thus achieving metal recovery. This recycling method often requires a separate screening process, resulting in low recycling efficiency and significantly increased recycling costs. Furthermore, the electromagnet must be energized before attracting metal and then moved to a designated location to be de-energized, creating an intermittent usage period and preventing continuous metal recovery. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a construction waste recycling and processing device that can efficiently distinguish between magnetic and non-magnetic aggregates.

[0004] A construction waste recycling and processing apparatus according to a first aspect of the present invention includes:

[0005] The processing assembly includes a crushing chamber, a sorting pipe connected to the bottom of the crushing chamber, and a separation pipe connected to the sorting pipe;

[0006] The roller assembly, located inside the crushing chamber, is used to crush construction waste into aggregate;

[0007] A first coil assembly is sleeved on the separation pipe and located at the connection between the separation pipe and the sorting pipe. The first coil assembly is capable of providing magnetic force in a direction away from the sorting pipe.

[0008] A second coil assembly is fitted onto the separation pipe and located on the side of the first coil assembly away from the sorting pipe. The second coil assembly is capable of providing magnetic force in a direction away from the sorting pipe.

[0009] The controller is electrically connected to the first coil assembly and the second coil assembly;

[0010] The controller is configured to: when the aggregate in the sorting pipe passes through the separation pipe, control the first coil assembly to be energized, and the first coil assembly attracts magnetic aggregate in the aggregate and moves towards the separation pipe; after the first coil assembly is energized for a first preset time, control the first coil assembly to be de-energized or reduce the current, and energize the second coil assembly, and the magnetic aggregate detaches from the separation pipe; wherein, after the first coil assembly is de-energized for a second preset time, control the first coil assembly to be energized, and the second preset time is less than the time it takes for the aggregate to fall through the separation pipe.

[0011] The construction waste recycling and processing apparatus according to the first aspect of the present invention has at least the following beneficial effects:

[0012] 1. Construction waste first passes through the roller assembly and is crushed into aggregate. The aggregate falls naturally into the sorting pipe. As the aggregate passes through the separation pipe, the magnetic aggregate is attracted by the first coil assembly, causing the magnetic aggregate to move into the separation pipe. The non-magnetic aggregate continues to move along the sorting pipe, thus separating the magnetic aggregate from the non-magnetic aggregate. During the continuous crushing of the aggregate, the separation can continue, and the separation efficiency of the magnetic aggregate is higher.

[0013] 2. After the first coil assembly has adsorbed all the magnetic aggregate within a certain time period, the controller controls the first coil assembly to be de-energized, and then controls the second coil assembly to be energized. This allows the second coil assembly to apply a magnetic force away from the sorting pipe to the magnetic aggregate in the first coil assembly. The magnetic aggregate in the first coil assembly is transferred through the second coil assembly, causing it to be discharged from the separation pipe. While the second coil assembly is transferring the magnetic aggregate, the first coil assembly can be energized again to continue adsorbing the magnetic aggregate in the sorting pipe. The de-energization time of the first coil assembly is a second preset time that is less than the time it takes for the aggregate to pass through the separation pipe, ensuring that the magnetic aggregate in the aggregate has not yet passed through the cross-section of the separation pipe. The first coil assembly can achieve uninterrupted continuous adsorption of the magnetic aggregate in the aggregate, resulting in higher separation efficiency and higher separation accuracy.

[0014] According to some embodiments of the present invention, the separation pipe is inclined upward.

[0015] According to some embodiments of the present invention, the roller assembly has a drop channel for aggregate to fall, and the sorting pipe has a sorting cavity aligned with and conforming to the drop channel for the aggregate to pass through.

[0016] According to some embodiments of the present invention, it further includes: a screening assembly disposed at the bottom of the crushing chamber and above the communication position between the sorting pipe and the crushing chamber, the screening assembly including a screening plate, the roller assembly having a falling channel for aggregate falling, the screening plate being located on the moving path of the falling channel to screen the aggregate.

[0017] According to some embodiments of the present invention, it further includes: a re-crushing assembly having a re-crushing channel communicating with the bottom of the crushing chamber, the screening plate being arc-shaped along the width direction of the falling flow channel, and the side of the screening plate away from the center being opposite to the falling flow channel, the re-crushing channel communicating with both ends of the screening plate along the arc.

[0018] According to some embodiments of the present invention, the second coil assembly includes a plurality of acceleration coils, the plurality of acceleration coils being distributed sequentially at intervals along a direction away from the sorting pipe, the controller being electrically connected to all the acceleration coils, defining the direction away from the sorting pipe, and the plurality of acceleration coils being sequentially a first acceleration coil, a second acceleration coil... an Nth acceleration coil;

[0019] The controller is configured to: when the second coil assembly is energized, the first acceleration coil, the second acceleration coil...the Nth acceleration coil are energized in sequence, and after being energized, they are de-energized or the current is reduced in sequence, so as to accelerate the magnetic aggregate away from the sorting pipe along the separation pipe, and the magnetic aggregate is separated from the separation pipe.

[0020] According to some embodiments of the present invention, the second coil assembly includes a plurality of fixed coils, the plurality of fixed coils being distributed sequentially at intervals along a direction away from the sorting pipe, the controller being electrically connected to all the fixed coils, defining the direction away from the sorting pipe, the plurality of fixed coils being sequentially a first fixed coil, a second fixed coil... an Nth fixed coil, at least one of the Nth fixed coils being located outside the separation pipe;

[0021] The controller is configured such that when the second coil assembly is energized, the first fixed coil, the second fixed coil...the Nth fixed coil are energized sequentially, and after being energized, they are de-energized or the current is reduced sequentially, so that the fixed coils sequentially transmit the magnetic aggregate along the separation pipe away from the sorting pipe until the magnetic aggregate is separated from the separation pipe.

[0022] According to some embodiments of the present invention, the separation pipe includes a main pipe and a bend pipe connected to the main pipe, wherein the main pipe is inclined upward and the bend pipe is inclined downward.

[0023] According to some embodiments of the present invention, the sorting pipe includes a main body and an insulating magnetic ring connected to the main body, the insulating magnetic ring being aligned with the first coil assembly along the axial direction of the sorting pipe, and the insulating magnetic ring being disposed between the first coil assembly and the outer peripheral surface of the main body.

[0024] A construction waste recycling and processing apparatus according to a second aspect of the present invention includes:

[0025] The processing assembly includes a crushing chamber, a sorting pipe connected to the bottom of the crushing chamber, and a separation pipe connected to the sorting pipe;

[0026] The roller assembly, located inside the crushing chamber, is used to crush construction waste into aggregate;

[0027] A first coil assembly is sleeved on the separation pipe and located at the connection between the separation pipe and the sorting pipe. The first coil assembly is capable of providing magnetic force in a direction away from the sorting pipe.

[0028] A second coil assembly is fitted onto the separation pipe and located on the side of the first coil assembly away from the sorting pipe. The second coil assembly is capable of providing magnetic force in a direction away from the sorting pipe. The second coil assembly has a first position and a second position.

[0029] A sliding component, drivenly connected to the second coil assembly, is used to drive the second coil assembly to move along the separation pipe;

[0030] The controller is electrically connected to the first coil assembly, the second coil assembly, and the sliding assembly;

[0031] The controller is configured to: energize the first coil assembly as the aggregate passes through the separation pipe within the sorting pipe, causing the first coil assembly to attract magnetic aggregate and move towards the separation pipe; after the first coil assembly is energized for a first preset time, de-energize the first coil assembly or reduce the current, energize the second coil assembly at the first position, where the magnetic force of the second coil assembly is greater than that of the first coil assembly, and the second coil assembly attracts the magnetic aggregate; energize the sliding assembly to drive the second coil assembly to the second position; de-energize the second coil assembly; and energize the sliding assembly to drive the second coil assembly back to the first position; wherein, after the first coil assembly is de-energized for a second preset time, the controller energizes the first coil assembly, the second preset time being less than the time it takes for the aggregate to fall through the separation pipe.

[0032] The construction waste recycling and processing apparatus according to a second aspect embodiment of the present invention has at least the following beneficial effects:

[0033] 1. Construction waste first passes through the roller assembly and is crushed into aggregate. The aggregate falls naturally into the sorting pipe. As the aggregate passes through the separation pipe, the magnetic aggregate is attracted by the first coil assembly, causing the magnetic aggregate to move into the separation pipe. The non-magnetic aggregate continues to move along the sorting pipe, thus separating the magnetic aggregate from the non-magnetic aggregate. During the continuous crushing of the aggregate, the separation can continue, and the separation efficiency of the magnetic aggregate is higher.

[0034] 2. After the first coil assembly has adsorbed all the magnetic aggregate within a certain time period, the controller controls the first coil assembly to be de-energized, and then controls the second coil assembly to be energized. The magnetic aggregate in the first coil assembly is transferred to the second coil assembly. Then, the sliding assembly drives the second coil assembly to move, so that the magnetic aggregate is discharged from the separation pipe. During the movement of the second coil assembly, the first coil assembly can be energized again to continue adsorbing the magnetic aggregate in the separation pipe. The de-energization time of the first coil assembly is a second preset time less than the time it takes for the aggregate to pass through the separation pipe, so that the magnetic aggregate in the aggregate has not yet passed through the cross-section of the separation pipe. The first coil assembly can achieve uninterrupted continuous adsorption of the magnetic aggregate in the aggregate, so that the separation efficiency of the magnetic aggregate is higher and the separation accuracy is higher.

[0035] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0037] Figure 1 This is a schematic diagram of the structure of a first embodiment of a construction waste recycling and processing device according to an embodiment of the present invention;

[0038] Figure 2 This is a partially exploded view of a first embodiment of a construction waste recycling and processing device according to an embodiment of the present invention;

[0039] Figure 3 This is a cross-sectional schematic diagram of a first embodiment of a construction waste recycling and processing device according to an embodiment of the present invention;

[0040] Figure 4 This is a three-dimensional cross-sectional schematic diagram of a first embodiment of a construction waste recycling and processing device according to an embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of a second embodiment of the construction waste recycling and processing device according to one embodiment of the present invention;

[0042] Figure 6 This is a partially exploded view of a second embodiment of a construction waste recycling and processing device according to one embodiment of the present invention;

[0043] Figure 7 This is a cross-sectional schematic diagram of a second embodiment of the construction waste recycling and processing device according to one embodiment of the present invention;

[0044] Figure 8 This is a three-dimensional cross-sectional schematic diagram of a second embodiment of a construction waste recycling and processing device according to one embodiment of the present invention.

[0045] Icon labels:

[0046] Processing component 100; crushing box 110; sorting pipe 120; insulating magnetic ring 121; separation pipe 130;

[0047] Roller assembly 200;

[0048] First coil assembly 300;

[0049] Second coil assembly 400;

[0050] Screening assembly 500; Screening plate 510;

[0051] Re-crushing component 600; Re-crushing channel 610. Detailed Implementation

[0052] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0053] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0054] In the description of this invention, "several" refers to one or more, and "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0055] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0056] Reference Figures 1 to 8 As shown, a first aspect embodiment of the present invention provides a construction waste recycling and processing device, comprising: a processing component 100, a roller assembly 200, a first coil assembly 300, a second coil assembly 400, and a controller. The processing component 100 is used to contain construction waste for centralized recycling. The roller assembly 200 is disposed within the processing component 100 to crush the construction waste into aggregate. Since construction waste includes both metallic and non-metallic waste, after crushing, it will also include magnetic and non-magnetic aggregates. For example, after crushing reinforced concrete, steel reinforcement aggregate and concrete aggregate are obtained. The first coil assembly 300 and the second coil assembly 400 are used to extract magnetic aggregate, thereby separating the magnetic aggregate from the non-magnetic aggregate, and enabling continuous adsorption of magnetic aggregate. The construction waste recycling and processing device in this embodiment can efficiently separate magnetic and non-magnetic aggregates, improving separation efficiency.

[0057] In this embodiment, the processing component 100 includes a crushing box 110, a sorting pipe 120 connected to the bottom of the crushing box 110, and a separation pipe 130 connected to the sorting pipe 120. The crushing box 110 is used to install the roller assembly 200 to crush construction waste. The crushing box 110 is vertically arranged. The construction waste enters the crushing box 110 from the top. After the construction waste is crushed into aggregate, the aggregate enters the sorting pipe 120 under the action of gravity and moves along the sorting pipe 120. The aggregate will pass through the connection position between the sorting pipe 120 and the separation pipe 130. At this connection position, magnetic aggregate and non-magnetic aggregate are separated.

[0058] The roller assembly 200 is located inside the crushing chamber 110. The roller assembly 200 includes two circular rollers with their outer peripheral surfaces facing each other. The axes of the two circular rollers are basically parallel to the horizontal plane. The two circular rollers rotate in opposite directions. This can be achieved by the same motor and gear transmission, or by two different motors that drive the two circular rollers separately, so that the two circular rollers rotate in opposite directions. The outer peripheral surfaces of the circular rollers are generally provided with crushing teeth to better crush construction waste. The installation position and control structure of the roller assembly 200 are common knowledge in the field and will not be described in detail here.

[0059] The first coil assembly 300 is sleeved on the separation pipe 130 and located at the connection between the separation pipe 130 and the sorting pipe 120. The first coil assembly 300 can provide magnetic force in the direction away from the sorting pipe 120. The first coil assembly 300 adsorbs the magnetic aggregate in the aggregate into the separation pipe 130, realizing the initial separation of magnetic aggregate and non-magnetic aggregate. The first coil assembly 300 is electrically connected to a power source, and the power source is controlled by a controller to realize the energization and de-energization of the first coil assembly 300.

[0060] The second coil assembly 400 is fitted onto the separation pipe 130 and located on the side of the first coil assembly 300 away from the sorting pipe 120. The second coil assembly 400 provides magnetic force in the direction away from the sorting pipe 120. The second coil assembly 400 is used to transfer the magnetic aggregate attracted by the first coil assembly 300, preventing the magnetic aggregate from accumulating inside the first coil assembly 300, allowing the first coil assembly 300 to continuously attract the magnetic aggregate, thus improving the separation efficiency of the magnetic aggregate. The structure of the second coil assembly 400 is the same as that of the first coil assembly 300, and both are powered by a controller to achieve power on and off.

[0061] The controller is electrically connected to the first coil assembly 300 and the second coil assembly 400. The controller can be a module unit with control functions, such as a central processing unit or a microcontroller. A pre-programmed program is written into the controller to separate magnetic aggregates from non-magnetic aggregates. Specifically, the controller is configured to: energize the first coil assembly 300 when aggregates in the sorting pipe 120 pass through the separation pipe 130, causing the first coil assembly 300 to attract magnetic aggregates and move them towards the separation pipe 130; after the first coil assembly 300 is energized for a first preset time, de-energize the first coil assembly 300 or reduce the current, energize the second coil assembly 400, and the magnetic aggregates detach from the separation pipe 130; and after the first coil assembly 300 is de-energized for a second preset time, energize the first coil assembly 300 again, the second preset time being less than the time it takes for the aggregates to fall through the separation pipe 130.

[0062] It should be noted that the time it takes for the aggregate to fall through the separation pipe 130 refers to the time it takes for the aggregate to fall through the cross-section formed by the separation pipe 130 and the side wall of the sorting pipe 120. For example, assuming the vertical height of the cross-section formed by the separation pipe 130 is 0.5m, the time it takes for the aggregate to fall naturally from the top of the cross-section to the bottom is 0.1s, and the acceleration due to gravity g = 10m / s². 2 Therefore, the second preset time needs to be less than 0.1s. Here, it is assumed that the distance between the second coil assembly 400 and the first coil assembly 300 is 0.05m, and the acceleration applied to the magnetic aggregate by the second coil assembly 400 is 5m / s².2 The time it takes for the magnetic aggregate to pass from the first coil assembly 300 to the second coil assembly 400 is 0.02s. Within the second preset time, the magnetic aggregate can move from the first coil assembly 300 to the second coil assembly 400, and can also pass through the second coil assembly 400 and move to the outside of the separation pipe 130.

[0063] It is understandable that construction waste first passes through the roller assembly 200 and is crushed into aggregate. The aggregate naturally falls into the sorting pipe 120. When the aggregate passes through the separation pipe 130, the magnetic aggregate is attracted by the first coil assembly 300, causing the magnetic aggregate to move into the separation pipe 130. The non-magnetic aggregate continues to move along the sorting pipe 120, achieving the separation of magnetic and non-magnetic aggregates. During the continuous crushing of the aggregate, separation can continue, and the separation efficiency of magnetic aggregates is higher. After the first coil assembly 300 has attracted all the magnetic aggregates within a certain period of time, the controller controls the first coil assembly 300 to be de-energized, and then controls the second coil assembly 400 to be energized, so that the second coil assembly 400 can... A magnetic force is applied to the magnetic aggregate in the first coil assembly 300 away from the sorting pipe 120. The magnetic aggregate in the first coil assembly 300 is transferred through the second coil assembly 400, so that the magnetic aggregate is discharged from the separation pipe 130. When the second coil assembly 400 transfers the magnetic aggregate, the first coil assembly 300 can be energized again to continue to adsorb the magnetic aggregate in the sorting pipe 120. The de-energization time of the first coil assembly 300 is a second preset time that is less than the time it takes for the aggregate to pass through the separation pipe 130, so that the magnetic aggregate in the aggregate has not yet passed through the cross-section of the separation pipe 130. The first coil assembly 300 can achieve uninterrupted continuous adsorption of the magnetic aggregate in the aggregate, so that the separation efficiency of the magnetic aggregate is higher and the separation accuracy is higher.

[0064] Reference Figure 5 , Figure 6 and Figure 7 As shown, in some specific embodiments of the present invention, the separation pipe 130 is inclined upward.

[0065] It should be noted that when the magnetic aggregate is attracted by the first coil assembly 300 and detaches from the sorting pipe 120, the magnetic aggregate may collide with the non-magnetic aggregate, causing the non-magnetic aggregate to also enter the separation pipe 130, resulting in the mixing of magnetic and non-magnetic aggregates. This leads to low screening accuracy of magnetic and non-magnetic aggregates, and after screening, re-screening is still required to remove the non-magnetic aggregates mixed in with the magnetic aggregates, resulting in low screening efficiency.

[0066] It is understandable that the upward-sloping separation pipe 130 prevents non-magnetic aggregates from escaping after entering it, and they will return to the sorting pipe 120 under the influence of gravity. Meanwhile, magnetic aggregates, attracted by the magnetic forces of the first coil assembly 300 and the second coil assembly 400, overcome gravity and move along the upward-sloping separation pipe 130, thus separating non-magnetic and magnetic aggregates and improving the separation accuracy. Furthermore, the increased cross-sectional height formed by the inclined separation pipe 130 and the sorting pipe 120 extends the time the aggregates spend passing through the cross-section of the separation pipe 130.

[0067] Reference Figure 1 , Figure 2 and Figure 3 As shown, in some other specific embodiments of the present invention, the separation pipe 130 includes a main pipe and a bent pipe connected to the main pipe, the main pipe being inclined upward and the bent pipe being inclined downward.

[0068] In this embodiment, the separation pipe 130 has only the main pipe section inclined upwards, while the bent pipe section is inclined downwards. The bent pipe facilitates the guidance of the magnetic aggregate, preventing it from moving in a parabolic manner. The recycling box is also located at the downward-inclined end of the bent pipe, making it easier to directly recycle the magnetic aggregate inside the bent pipe.

[0069] In this design, a second coil assembly 400 can be installed at the bend of the pipe. The second coil assembly 400 has dense wires near the inner side of the pipe and sparse wires near the outer side of the pipe, so that magnetic field lines are formed in the second coil assembly 400 that are consistent with the bend arc of the pipe, which can deflect the magnetic aggregate and make it move along the bend arc.

[0070] Reference Figure 3 and Figure 7 As shown, in some specific embodiments of the present invention, the roller assembly 200 has a drop channel for aggregate to fall, and the sorting pipe 120 has a sorting cavity that is aligned with and conforms to the drop channel for aggregate to pass through.

[0071] It is understandable that the sorting chamber is designed to accommodate the passage of the falling flow channel, so that the cross-section of the separation pipe 130 can fit into the falling flow channel of the aggregate, which facilitates the first coil assembly 300 to attract the magnetic aggregate in the falling flow channel, and enables the first coil assembly 300 to fully attract the magnetic aggregate in the falling flow channel.

[0072] The cascading channel is a waterfall-like channel formed when the aggregate falls naturally, with a width direction consistent with the fabric. The sorting chamber is consistent with the cascading channel, that is, the sorting chamber is also flat and rectangular, and the length direction of the sorting chamber is the width direction of the cascading channel. The separating pipe 130 faces the cascading channel and is perpendicular to the width direction, facing the fabric-like plane formed by the cascading channel. This allows the first coil assembly 300 to better adsorb the magnetic aggregate in the cascading channel, making it less likely for the magnetic aggregate and non-magnetic aggregate to overlap in multiple layers, and the magnetic adsorption force on the magnetic aggregate is stronger.

[0073] Reference Figure 2 As shown, in some specific embodiments of the present invention, the construction waste recycling and processing device further includes a screening component 500. The screening component 500 is disposed at the bottom of the crushing box 110 and above the communication position between the sorting pipe 120 and the crushing box 110. The screening component 500 includes a screening plate 510. The roller assembly 200 has a falling channel for aggregate to fall. The screening plate 510 is located on the moving path of the falling channel to screen the aggregate.

[0074] It is understandable that during the aggregate falling process, large and small aggregate particles are directly screened. Large aggregate particles cannot enter the sorting pipe 120, while small aggregate particles can enter and are attracted by the magnetic aggregate in the separation pipe 130. This facilitates control of the first magnetic coil and avoids the problem of large aggregate particles failing to separate smoothly due to differences in aggregate quality. Simultaneously, it improves the consistency of aggregate diameter, resulting in more uniform aggregate size. Furthermore, the large aggregate particles at the screening point can be further crushed to form smaller aggregate particles.

[0075] Furthermore, during the crushing of construction waste by the roller assembly 200, a certain amount of vibration is generated in the crushing box 110. This vibration is transmitted to the screening plate 510, making it less prone to clogging and resulting in a higher screening efficiency. Additionally, the overall structure is more compact, reducing the space occupied by the device. Simultaneously, the screening plate 510 blocks the aggregate, slowing its descent. After passing through the screening plate 510, the aggregate resumes free fall, reducing its entry speed into the sorting pipe 120. This makes the time it takes for the aggregate to pass through the cross-section of the separation pipe 130 closer to the theoretically calculated time.

[0076] In some specific implementations, the screening assembly 500 is inserted into the crushing chamber 110. The screening assembly 500 also includes a baffle connected to the screening plate 510 and a handle located outside the baffle. After the screening assembly 500 is inserted into the crushing chamber 110, the baffle forms part of the side wall of the crushing chamber 110. The handle assists the user in inserting or removing the screening assembly 500 from the crushing chamber 110, facilitating the cleaning of the screening plate 510. The screening plate 510 is provided with sieve holes (not shown in the figure), through which screening is achieved.

[0077] Reference Figure 1 As shown, in some specific embodiments of the present invention, the construction waste recycling and processing device further includes a re-crushing component 600, which has a re-crushing channel 610 connected to the bottom of the crushing box 110. The screening plate 510 is arc-shaped along the width direction of the falling channel, and the side of the screening plate 510 away from the center is opposite to the falling channel. The re-crushing channel 610 is connected to both ends of the screening plate 510 along the arc.

[0078] It is understandable that the large aggregate particles are collected by the re-crushing component 600 to re-crush them into smaller aggregate particles, thereby improving the consistency of crushing.

[0079] In this embodiment, a curved screening plate 510 guides large aggregate particles into the re-crushing channel 610 for collection. The re-crushing channel 610 can simply be a container for the large aggregate particles. After storing a certain amount, the large aggregate particles are manually removed from the re-crushing channel 610 and poured into the top of the crushing box 110. Alternatively, the re-crushing channel 610 forms a closed channel with a storage chamber at the top of the crushing box 110. A vacuum pump is installed above the storage chamber to draw the large aggregate particles from the re-crushing channel 610 to the top of the crushing box 110, thus transferring them. The large aggregate particles in the storage chamber are then periodically poured back into the crushing box 110, completing the re-crushing of the large aggregate particles.

[0080] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in some specific embodiments of the present invention, the second coil assembly 400 includes a plurality of accelerating coils, which are distributed sequentially at intervals along the direction away from the sorting pipe 120. A controller is electrically connected to all the accelerating coils, and the plurality of accelerating coils are defined as the first accelerating coil, the second accelerating coil, ... the Nth accelerating coil along the direction away from the sorting pipe 120. The controller is configured to: when the second coil assembly 400 is energized, the first accelerating coil, the second accelerating coil, ... the Nth accelerating coil are energized sequentially, and after being energized, they are de-energized or the current is reduced sequentially, so as to accelerate the magnetic aggregate along the direction away from the sorting pipe 120 along the separation pipe 130, and the magnetic aggregate is separated from the separation pipe 130.

[0081] It is worth understanding that the second coil assembly 400 accelerates the magnetic aggregate through multiple acceleration coils, enabling the magnetic aggregate to accelerate out of the separation pipe 130 and thus detach the magnetic aggregate from the separation pipe 130.

[0082] In this embodiment, the aggregate is screened by the screening plate 510. After screening, the size of the aggregate is basically determined, that is, the mass of the aggregate is basically determined within a certain range. It is only necessary to ensure that the aggregate with the largest mass within this range can be accelerated by the acceleration coil to the injection separation pipe 130, and other aggregates with a mass lower than the largest mass can be injected into the separation pipe 130. Specifically, after the first coil assembly 300 is de-energized, the first acceleration coil is energized, while the second to Nth acceleration coils are not yet energized. When the magnetic aggregate passes through the first acceleration coil, the first acceleration coil is de-energized and the second acceleration coil is energized; when the magnetic aggregate passes through the second acceleration coil, the second acceleration coil is de-energized and the third acceleration coil is energized; and so on, until the Nth acceleration coil is energized, the magnetic aggregate passes through the Nth acceleration coil, the Nth acceleration coil is de-energized, and the magnetic aggregate is injected into the separation pipe 130 at a certain speed.

[0083] Reference Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, in some specific embodiments of the present invention, the second coil assembly 400 includes a plurality of fixed coils, which are sequentially spaced along the direction away from the sorting pipe 120. A controller is electrically connected to all the fixed coils. The plurality of fixed coils are defined as a first fixed coil, a second fixed coil, ..., an Nth fixed coil along the direction away from the sorting pipe 120, and at least one Nth fixed coil is located outside the separation pipe 130. The controller is configured to: when the second coil assembly 400 is energized, the first fixed coil, the second fixed coil, ..., the Nth fixed coil are sequentially energized, and after being energized, they are sequentially de-energized or the current is reduced, so that the fixed coils sequentially transmit magnetic aggregate along the direction away from the sorting pipe 120 along the separation pipe 130 until the magnetic aggregate is removed from the separation pipe 130.

[0084] It is worth understanding that the Nth fixed coil is located outside the separation pipe 130. When the magnetic aggregate is transferred to the Nth fixed coil, the magnetic aggregate overflows outside the separation pipe 130, thus realizing the separation of the magnetic aggregate from the separation pipe 130.

[0085] In this embodiment, when the first coil assembly 300 is de-energized or the current is reduced, the first fixed coil attracts the magnetic aggregate inside the first coil assembly 300 to the first fixed coil, realizing the transfer of the magnetic aggregate. Then, the second fixed coil is energized, and the first fixed coil is de-energized or the current is reduced, so that the magnetic aggregate inside the first fixed coil can be transferred to the second fixed coil. This process continues until the magnetic aggregate is transferred to the Nth fixed coil, which is located outside the separation pipe 130. When the Nth fixed coil is de-energized, the magnetic aggregate inside the separation pipe 130 is transferred.

[0086] Specifically, the Nth fixed coil is located outside the separation pipe 130. The side wall of the separation pipe 130 is provided with an extension. The Nth fixed coil is mounted on the extension. The extension is provided with a detachable limiting block to limit the distance between the Nth fixed coil and the end face of the separation pipe 130, so that a gap space is formed between the Nth fixed coil and the bottom wall of the separation pipe 130. When the Nth fixed coil is de-energized, the magnetic aggregate falls through the gap space, realizing the separation of the magnetic aggregate from the separation pipe 130.

[0087] Reference Figure 3 and Figure 7 As shown, in some specific embodiments of the present invention, the sorting pipe 120 includes a main body and an insulating magnetic ring 121 connected to the main body. The insulating magnetic ring 121 is aligned with the first coil assembly 300 along the axial direction of the separation pipe 130, and the insulating magnetic ring 121 is disposed between the first coil assembly 300 and the outer peripheral surface of the main body.

[0088] It is worth understanding that by isolating the magnetic ring 121, the magnetic force of the first coil assembly 300 will not be manifested on the side wall of the sorting pipe 120, but will be concentrated in the separation pipe 130. When the aggregate falls, it will only be subjected to magnetic force when it passes through the cross section of the separation pipe 130, and will be directly magnetically attracted into the separation pipe 130, thus realizing the transfer of magnetic aggregate into the separation pipe 130, and will not remain on the side wall of the sorting pipe 120.

[0089] A second aspect of this invention provides a construction waste recycling and processing device, comprising: a processing component 100, a roller assembly 200, a first coil assembly 300, a second coil assembly 400, a sliding component, and a controller. The processing component 100 is used to contain construction waste for centralized recycling. The roller assembly 200 is disposed within the processing component 100 to crush the construction waste into aggregate. Since construction waste includes both metallic and non-metallic waste, after crushing, it will also include magnetic and non-magnetic aggregates; for example, crushed reinforced concrete yields reinforcing steel aggregate and concrete aggregate. The first coil assembly 300 and the second coil assembly 400 are used to extract magnetic aggregate, separating it from non-magnetic aggregate, and enabling continuous adsorption of magnetic aggregate. The sliding component transfers the second coil assembly 400, allowing the magnetic aggregate fixed within the second coil assembly 400 to be transferred. The construction waste recycling and processing device in this embodiment can efficiently separate magnetic and non-magnetic aggregates, improving separation efficiency.

[0090] In this embodiment, the processing component 100, roller assembly 200, first coil assembly 300, second coil assembly 400, and controller have the same structure as the processing component 100, roller assembly 200, first coil assembly 300, second coil assembly 400, and controller of the construction waste recycling and processing device in the first aspect embodiment, and will not be described again here.

[0091] The second coil assembly 400 has a first position and a second position; a sliding assembly is driven to the second coil assembly 400 and is used to drive the second coil assembly 400 to move along the separation pipe 130; the sliding assembly includes a telescopic rod and a guide rail, the telescopic rod includes a fixed part and a telescopic part telescopically connected to the fixed part, the telescopic part is driven to the second coil assembly 400, and the telescopic part can drive the second coil assembly 400 to transfer between the first position and the second position, the guide rail is slidably connected to the second coil assembly 400 and plays a guiding role for the second coil assembly 400, so that the second coil assembly 400 moves in a fixed direction.

[0092] The controller is configured to: energize the first coil assembly 300 when the aggregate in the sorting pipe 120 passes through the separation pipe 130, causing the first coil assembly 300 to attract magnetic aggregate and move towards the separation pipe 130; after the first coil assembly 300 is energized for a first preset time, de-energize the first coil assembly 300 or reduce the current, and energize the second coil assembly 400 at a first position, where the magnetic force of the second coil assembly 400 is greater than that of the first coil assembly 300, causing the second coil assembly 400 to attract magnetic aggregate; control the sliding assembly to drive the second coil assembly 400 to move to a second position; de-energize the second coil assembly 400; and control the sliding assembly to drive the second coil assembly 400 back to the first position; wherein, after the first coil assembly 300 is de-energized for a second preset time, the first coil assembly 300 is energized again, and the second preset time is less than the time it takes for the aggregate to fall through the separation pipe 130.

[0093] It should be noted that when the second coil assembly 400 moves to attract magnetic aggregate, the second position is a position close to the end point of the sliding assembly's travel, but not yet at the end point. When the sliding assembly reaches the end point, its speed decreases to zero. However, in the second position, the magnetic aggregate still retains some speed. After the second coil assembly 400 is de-energized in the second position, the magnetic aggregate, due to inertia, can be thrown out of the separation pipe 130, causing it to detach from the separation pipe 130. Alternatively, the Nth coil in the second coil assembly 400 may be located outside the separation pipe 130, and the magnetic aggregate may detach from the separation pipe 130 when it is inside the Nth coil.

[0094] It is understandable that construction waste first passes through the roller assembly 200 and is crushed into aggregate. The aggregate naturally falls into the sorting pipe 120. When the aggregate passes through the separation pipe 130, the magnetic aggregate is attracted by the first coil assembly 300, causing the magnetic aggregate to move into the separation pipe 130. The non-magnetic aggregate continues to move along the sorting pipe 120, achieving the separation of magnetic and non-magnetic aggregates. During the continuous crushing of the aggregate, separation can continue, and the separation efficiency of magnetic aggregates is higher. After the first coil assembly 300 has attracted all the magnetic aggregate within a certain period of time, the controller controls the first coil assembly 300 to be de-energized, and then controls the second coil assembly 400 to be energized. The magnetic aggregate in coil assembly 300 is transferred to the second coil assembly 400, and then the second coil assembly 400 is moved by the sliding assembly, so that the magnetic aggregate is discharged from the separation pipe 130. During the movement of the second coil assembly 400, the first coil assembly 300 can be energized again to continue to adsorb the magnetic aggregate in the separation pipe 120. The de-energization time of the first coil assembly 300 is a second preset time less than the time it takes for the aggregate to pass through the separation pipe 130, so that the magnetic aggregate in the aggregate has not yet passed through the cross-section of the separation pipe 130. The first coil assembly 300 can continuously adsorb the magnetic aggregate in the aggregate, so that the separation efficiency of the magnetic aggregate is higher and the separation accuracy is higher.

[0095] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A construction waste recycling and processing device, characterized in that, include: The processing assembly includes a crushing chamber, a sorting pipe connected to the bottom of the crushing chamber, and a separation pipe connected to the sorting pipe; The roller assembly is located inside the crushing chamber and is used to crush construction waste into aggregate; A first coil assembly is sleeved on the separation pipe and located at the connection between the separation pipe and the sorting pipe. The first coil assembly is capable of providing magnetic force in a direction away from the sorting pipe. A second coil assembly is fitted onto the separation pipe and located on the side of the first coil assembly away from the sorting pipe. The second coil assembly is capable of providing magnetic force in a direction away from the sorting pipe. The controller is electrically connected to the first coil assembly and the second coil assembly; The controller is configured to: when the aggregate in the sorting pipe passes through the separation pipe, control the first coil assembly to be energized, and the first coil assembly attracts magnetic aggregate in the aggregate and moves towards the separation pipe; after the first coil assembly is energized for a first preset time, control the first coil assembly to be de-energized, and control the second coil assembly to be energized, and control the magnetic aggregate to detach from the separation pipe; wherein, after the first coil assembly is de-energized for a second preset time, control the first coil assembly to be energized, and the second preset time is less than the time it takes for the aggregate to fall through the separation pipe.

2. The construction waste recycling and processing device according to claim 1, characterized in that: The separation pipe is inclined upwards.

3. The construction waste recycling and processing device according to claim 1, characterized in that: The roller assembly has a drop channel for aggregate to fall, and the sorting pipe has a sorting cavity aligned with and conforming to the drop channel for the aggregate to pass through.

4. The construction waste recycling and processing device according to claim 1, characterized in that, Also includes: A screening assembly is provided at the bottom of the crushing box and above the connection between the sorting pipe and the crushing box. The screening assembly includes a screening plate. The roller assembly has a falling channel for aggregate to fall. The screening plate is located on the moving path of the falling channel to screen the aggregate.

5. The construction waste recycling and processing device according to claim 4, characterized in that, Also includes: The re-crushing assembly has a re-crushing channel connected to the bottom of the crushing box. The screening plate is arc-shaped along the width direction of the falling flow channel, and the side of the screening plate away from the center is opposite to the falling flow channel. The re-crushing channel is connected to both ends of the screening plate along the arc.

6. The construction waste recycling and processing device according to claim 1, characterized in that: The second coil assembly includes a plurality of acceleration coils, which are distributed sequentially at intervals along a direction away from the sorting pipe. The controller is electrically connected to all the acceleration coils and defines the direction away from the sorting pipe. The plurality of acceleration coils are sequentially named a first acceleration coil, a second acceleration coil, ..., an Nth acceleration coil. The controller is configured to: when the second coil assembly is energized, the first acceleration coil, the second acceleration coil...the Nth acceleration coil are energized in sequence, and after being energized, they are de-energized or the current is reduced in sequence, so as to accelerate the magnetic aggregate away from the sorting pipe along the separation pipe, and the magnetic aggregate is separated from the separation pipe.

7. The construction waste recycling and processing device according to claim 1, characterized in that, Also includes: The second coil assembly includes a plurality of fixed coils, which are distributed sequentially at intervals along a direction away from the sorting pipe. The controller is electrically connected to all the fixed coils and defines the direction away from the sorting pipe. The plurality of fixed coils are sequentially named a first fixed coil, a second fixed coil, ..., an Nth fixed coil, and the Nth fixed coil is located outside the separation pipe. The controller is configured such that when the second coil assembly is energized, the first fixed coil, the second fixed coil...the Nth fixed coil are energized sequentially, and after being energized, they are de-energized or the current is reduced sequentially, so that the fixed coils sequentially transmit the magnetic aggregate along the separation pipe away from the sorting pipe until the magnetic aggregate is separated from the separation pipe.

8. The construction waste recycling and processing device according to claim 1, characterized in that: The separation pipeline includes a main pipeline and a bend pipeline connected to the main pipeline. The main pipeline is inclined upwards, and the bend pipeline is inclined downwards.

9. The construction waste recycling and processing device according to claim 1, characterized in that: The sorting pipe includes a main body and an insulating magnetic ring connected to the main body. The insulating magnetic ring is aligned with the first coil assembly along the axial direction of the sorting pipe and is disposed between the first coil assembly and the outer peripheral surface of the main body.

10. A construction waste recycling and processing device, characterized in that, include: The processing assembly includes a crushing chamber, a sorting pipe connected to the bottom of the crushing chamber, and a separation pipe connected to the sorting pipe; The roller assembly is located inside the crushing chamber and is used to crush construction waste into aggregate; A first coil assembly is sleeved on the separation pipe and located at the connection between the separation pipe and the sorting pipe. The first coil assembly is capable of providing magnetic force in a direction away from the sorting pipe. A second coil assembly is sleeved on the separation pipe and located on the side of the first coil assembly away from the sorting pipe. The second coil assembly is capable of providing magnetic force in the direction away from the sorting pipe. The second coil assembly has a first position and a second position. A sliding component, drivenly connected to the second coil assembly, is used to drive the second coil assembly to move along the separation pipe; The controller is electrically connected to the first coil assembly, the second coil assembly, and the sliding assembly; The controller is configured to: energize the first coil assembly as the aggregate passes through the separation pipe within the sorting pipe, causing the first coil assembly to attract magnetic aggregate and move towards the separation pipe; after the first coil assembly is energized for a first preset time, de-energize the first coil assembly or reduce the current, energize the second coil assembly at the first position, where the magnetic force of the second coil assembly is greater than that of the first coil assembly, and the second coil assembly attracts the magnetic aggregate; control the sliding assembly to drive the second coil assembly to the second position; de-energize the second coil assembly; and control the sliding assembly to drive the second coil assembly back to the first position; wherein, after the first coil assembly is de-energized for a second preset time, energize the first coil assembly, the second preset time being less than the time it takes for the aggregate to fall through the separation pipe.

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