Innovative crushing and recycling integrated technology

Abstract

The invention discloses an innovative crushing and recycling integrated technology, and particularly relates to the technical field of solid waste treatment. The equipment mainly comprises a coarse crushing mechanism, a fine crushing mechanism and a sorting and recycling device, wherein the coarse crushing mechanism and the fine crushing mechanism are arranged in series; wherein the coarse crushing mechanism adopts a double-shaft shearing type structure to primarily crush materials, the fine crushing mechanism utilizes a high-speed rotating hammer to finely crush the materials, and the coarse crushing mechanism and the fine crushing mechanism are connected through a closed conveying channel internally provided with a spiral propeller; the sorting system consists of a vibration screening unit and a winnowing unit, and is used for carrying out size grading and specific gravity sorting on the crushed materials; the negative pressure collecting system comprises a cyclone separator and a centrifugal fan and is used for sucking and collecting light dust generated in the sorting process. Through structural integration of multi-stage crushing, closed conveying, efficient sorting and negative pressure dust removal, continuous and closed efficient treatment of materials is achieved, and the recovery quality and the working stability of the whole machine are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of solid waste treatment technology, and more specifically, to an innovative integrated crushing and recycling technology. Background Technology

[0002] Solid waste reduction and resource recovery are crucial components of the environmental protection industry, with crushing and recycling being two key stages. Early technologies in this field primarily employed separate equipment, where materials were first initially processed by crushing equipment and then transferred to sorting and recycling units via conveyor systems. This approach resulted in dispersed equipment layouts and large land areas. In recent years, with the deepening of intelligent manufacturing and green circular economy concepts, this field has shown a clear trend towards intensive and integrated development. The aim is to reduce material transfer losses and improve overall processing efficiency and clean production capabilities through process integration and system optimization.

[0003] However, existing integrated technical solutions still have significant drawbacks. First, most equipment simply combines basic functions; their crushing modules often employ single-stage crushing, resulting in uneven particle size and consequently high loads and low efficiency in subsequent sorting. Sorting systems often rely on single screening or air separation, making it difficult to achieve efficient separation of materials with complex compositions. Second, poor coordination between units leads to dust leakage during material transfer, causing environmental pollution and product loss. Third, the system lacks intelligent collaborative control capabilities; crushing particle size and sorting parameters are set independently, failing to dynamically adjust based on real-time operating conditions, resulting in high energy consumption and unstable purity of the recovered product.

[0004] Therefore, an innovative integrated crushing and recycling technology is proposed to address the aforementioned problems. The aim is to solve the key issues in the existing technologies, namely: how to design a truly efficient, sealed, and collaboratively operating integrated crushing and recycling machine to overcome problems such as uneven particle size distribution, low sorting efficiency, system dust leakage, and energy consumption and quality stability issues caused by independent operation of each unit. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present invention provide an innovative integrated crushing and recycling technology to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an innovative integrated crushing and recycling technology, comprising a crushing device and a recycling device. The crushing device includes a coarse crushing mechanism and a fine crushing mechanism connected in series. The discharge port of the coarse crushing mechanism is connected to the inlet of the fine crushing mechanism through a closed conveying channel. The recycling device includes a collection bin, a sorting system, and a negative pressure collection system. The sorting system is located at the discharge end of the fine crushing mechanism and includes a vibrating screening unit and an air separation unit. The air separation unit is connected to the negative pressure collection system through a pipeline. A collection bin is located below the sorting system, and a discharge valve is located at the bottom of the collection bin. The negative pressure collection system includes a cyclone separator and a connecting fan. The inlet of the cyclone separator is connected to the outlet of the air separation unit, and the outlet is connected to the return port on the side wall of the collection bin through a recycling pipeline.

[0007] Alternatively, the vibrating screening unit in the sorting system adopts a three-layer screen structure, including an upper screen, a middle screen, and a bottom screen. The aperture range of the upper screen is 5-10 mm, the aperture range of the middle screen is 2-5 mm, and the aperture of the bottom screen is less than 2 mm. The air separation unit is located at the discharge end of the vibrating screening unit and includes an inclined air separation channel and an air speed adjustment device. The air inlet of the air separation channel is connected to the negative pressure collection system.

[0008] Alternatively, the coarse crushing mechanism adopts a dual-shaft shearing crushing structure, including a moving blade group and a fixed blade group that mesh with each other. The moving blade group is controlled to rotate by a hydraulic drive system. The fine crushing mechanism adopts a high-speed rotating hammer structure. The gap between the end of the hammer and the liner is adjustable, with an adjustment range of 0.5-3 mm.

[0009] Alternatively, the enclosed conveying channel is equipped with a spiral propeller inside, and the rotation speed of the spiral propeller is controlled by a variable frequency motor; the outer wall of the conveying channel is equipped with a cooling water jacket, and the inlet and outlet of the cooling water jacket are respectively located at both ends of the channel.

[0010] Alternatively, the recovery pipe in the negative pressure collection system is equipped with a transparent observation section, and the observation section is equipped with a removable filter assembly; the return interface adopts a tangential entry design, forming a vortex guiding structure with the inner wall of the collection bin.

[0011] Alternatively, the material collection silo is equipped with a material level monitoring device, which uses an ultrasonic sensor or a capacitive sensor; the discharge valve is a pneumatic butterfly valve or an electric gate valve, and the valve body opening size matches the bottom outlet of the material collection silo.

[0012] Alternatively, the wind speed adjustment device of the wind separation channel includes a damper controller and a wind speed sensor. The damper controller automatically adjusts the damper opening based on the feedback signal from the wind speed sensor. The tilt angle of the wind separation channel is in the range of 30-60 degrees.

[0013] Alternatively, the crushing device and the recycling device are installed together in a closed frame, and the inside of the frame is divided into a crushing area and a recycling area by a partition; the top of the frame is provided with an inspection door, and the side is provided with a control panel mounting position.

[0014] The technical effects and advantages of this invention are as follows:

[0015] Compared to existing technologies, this invention achieves multi-stage fine crushing and dust-free conveying of materials by employing a series of coarse and fine crushing mechanisms in conjunction with a closed conveying channel. The coarse crushing mechanism first performs preliminary shearing and crushing of large pieces of material, and then the material is stably conveyed to the fine crushing mechanism for high-speed impact crushing via a screw propeller in the closed channel. This design effectively avoids dust escape and material scattering caused by traditional open conveying, improves crushing efficiency and particle size uniformity, and also improves the cleanliness of the working environment.

[0016] Compared to existing technologies, this invention integrates a vibrating screen and an air classifier unit, connected to a negative pressure collection system, to construct a highly efficient and precise sorting and recycling process. The pulverized material is first graded by the vibrating screen, and then the air classifier unit separates lighter impurities based on their specific gravity. The separated dust and other impurities are drawn in by the negative pressure system and collected by a cyclone separator. This collaborative sorting mode improves the purity and quality of the final recycled product, solving the problems of low efficiency and incomplete impurity removal associated with single sorting methods.

[0017] Compared to existing technologies, this invention achieves real-time monitoring and coordinated operation of all operating parameters of the entire machine by setting sensors in key units and adopting an intelligent control system. The system can automatically adjust the rotation speed and gap of the crushing mechanism according to the crushing load, and dynamically adjust the air classifier speed and screening intensity according to the material characteristics, ensuring efficient matching and stable operation of crushing, sorting, and collection processes. This intelligent design effectively reduces energy consumption per unit capacity, reduces manual intervention, and improves the production efficiency and stability of the equipment. Attached Figure Description

[0018] Figure 1 This is a system framework diagram of the present invention.

[0019] Figure 2 This is a flowchart of the process of the present invention. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1:

[0022] As attached Figures 1-2 The invention illustrates an innovative integrated crushing and recycling technology, comprising a crushing device and a recycling device. The crushing device includes a coarse crushing mechanism and a fine crushing mechanism arranged in series. The coarse crushing mechanism adopts a dual-shaft shearing crushing principle, comprising two parallel rotating shafts. Each rotating shaft is fixedly equipped with a staggered set of moving blades, which form a shearing engagement with a set of fixed blades fixed to the inner wall of the casing. The rotating shafts are driven to rotate by a hydraulic motor, and the hydraulic system provides adjustable speed and torque output. The speed adjustment range is 15-35 rpm, and the torque output range is 2000-5000 Nm. The discharge port of the coarse crushing mechanism is equipped with a grid screen with a mesh size of 30-50 mm. The feed end of a closed conveying channel is connected below the grid screen.

[0023] The fine grinding mechanism adopts the high-speed impact grinding principle, including a horizontally arranged main shaft, a freely swinging hammer assembly installed on the main shaft, an annular liner plate set around the hammer assembly, and the gap between the end of the hammer and the liner plate is dynamically adjusted by a hydraulic adjustment device with an adjustment accuracy of ±0.1 mm. The main shaft is driven by a variable frequency motor with a speed range of 1500-3000 rpm.

[0024] Where, ΔG=k·(D max -D set );

[0025] ΔG is the dynamic adjustment amount required for the gap between the hammer blade and the liner plate, and the unit is millimeters (mm).

[0026] k is the proportional coefficient (dimensionless) of the control system, which is preset according to the specific material characteristics and crushing requirements.

[0027] D max This represents the maximum particle size of the discharged material detected within a given period, expressed in millimeters (mm). It can be obtained through online particle size monitoring or sieving results feedback.

[0028] D set The target discharge particle size set for the system, in millimeters (mm).

[0029] The enclosed conveying channel adopts a double-wall structure, with the inner layer being a wear-resistant steel plate and the outer layer being a carbon steel protective plate, with sound insulation material filling the middle. A screw propeller is installed inside the channel, with the gap between the screw blades and the inner wall of the channel being 2-5 mm. The screw propeller is driven by a geared motor with a speed range of 20-60 rpm.

[0030] The recycling device includes a collection bin, a sorting system, and a negative pressure collection system. The sorting system is located at the discharge end of the fine grinding mechanism and includes a vibrating screening unit and an air classifier unit. The vibrating screening unit is driven by a three-dimensional vibrating motor with a vibration frequency adjustment range of 800-1500 times / minute and an amplitude range of 2-5 mm. The air classifier unit includes a Venturi-type air classifier channel and an air speed adjustment device. The air inlet of the air classifier channel is connected to the negative pressure collection system through a flange.

[0031] The sorting system is equipped with a conical collection bin at the bottom, the inner wall of which is lined with ultra-high molecular weight polyethylene wear-resistant lining plate, and a pneumatic discharge valve is installed at the bottom, the opening size of which matches the outlet diameter of the collection bin.

[0032] The negative pressure collection system includes a cyclone separator and a centrifugal fan. The cyclone separator adopts a double cone structure with an inlet wind speed controlled at 15-25 m / s. The centrifugal fan adopts a backward blade design with an air volume adjustment range of 1000-3000 cubic meters / hour. The bottom outlet of the cyclone separator is connected to the return port on the side wall of the collection silo through a recovery pipe. The return port adopts a tangential arrangement to form a swirling field with the inner wall of the collection silo.

[0033] The vibrating screening unit in the sorting system adopts a three-layer screen structure, including an upper screen, a middle screen, and a bottom screen. Each layer of screen is fixed in the screen box by a spring damping device. The upper screen adopts a corrugated woven structure with a hole diameter of 5-10 mm, is made of 65 manganese steel, and has a carburized surface. The middle screen adopts a perforated plate structure with a hole diameter of 2-5 mm and a plate thickness of 2-3 mm, and is made of 304 stainless steel. The bottom screen adopts a microporous screen plate structure with a hole diameter of less than 2 mm, a plate thickness of 1-1.5 mm, and is made of 316L stainless steel.

[0034] The drive system of the vibrating screening unit includes two vibrating motors, symmetrically installed on both sides of the screen box. The vibrating motors are frequency-controlled and can rotate in the same or opposite directions. The air separation unit is located at the discharge end of the vibrating screening unit and includes an air separation channel arranged at an inclination of 30-60 degrees. The air separation channel adopts a tapered tube structure with a rectangular inlet section and a circular outlet section. The inner wall of the channel is polished and the surface roughness is no more than 0.8 micrometers.

[0035] The wind speed adjustment device includes a damper actuator and a wind speed sensor. The damper actuator adopts an electric push rod structure with a push rod stroke of 100-200 mm. The wind speed sensor adopts a hot-wire anemometer with a measurement range of 0-30 m / s. The wind speed sensor is installed at the outlet of the wind classifier channel.

[0036] The air inlet of the air separation channel is connected to the inlet of the negative pressure collection system through a flexible connecting pipe. The connecting pipe is made of wear-resistant rubber and has an internal reinforced steel wire skeleton.

[0037] In the dual-shaft shearing crushing structure of the coarse crushing mechanism, the moving blade assembly adopts a modular design. Each moving blade consists of a blade body and a replaceable blade head. The blade body is made of 42CrMo alloy steel, and the blade head is made of cemented carbide. The blade head is fixed to the blade body by high-strength bolts. The moving blade and the rotating shaft are connected by an involute spline with a fit tolerance of H7 / h6.

[0038] The fixed blade assembly adopts a segmented structure and is fixed to the inner wall of the machine housing by bolts. The working surface of the fixed blade is overlaid with a tungsten carbide wear-resistant layer with a thickness of 3-5 mm. The hydraulic drive system includes a variable hydraulic pump, a hydraulic motor, and a control system. The variable hydraulic pump adopts an axial piston structure with a maximum working pressure of 31.5 MPa. The hydraulic motor adopts a radial piston structure with an output torque of up to 5000 Nm. The control system includes a pressure sensor, a flow sensor, and a PLC controller, which can realize closed-loop control of speed and torque.

[0039] in,

[0040] E c The energy consumption for coarse grinding is expressed in kilowatt-hours per ton (kW·h / t), representing the energy consumed in grinding a unit mass of material.

[0041] η h The overall efficiency of the hydraulic system (dimensionless) is a comprehensive reflection of the efficiency of the hydraulic pump, motor, and pipeline transmission.

[0042] T m This represents the output torque of the hydraulic motor, measured in Newton-meters (N·m).

[0043] ω m This refers to the angular velocity of the hydraulic motor, measured in radians per second (rad / s).

[0044] t is a time variable, and the unit is seconds (s).

[0045] M c The total mass of material processed within time t, expressed in tons (t).

[0046] In the high-speed rotating hammer structure of the fine grinding mechanism, the hammers adopt a symmetrical balance design, are made of high-chromium cast iron with a chromium content of 26-28%, and have a heat treatment hardness of HRC58-62. The hammers are mounted on the hammer frame on the main shaft by pins. The hammer frame is made of forged steel and undergoes dynamic balance correction, with an imbalance of no more than 0.5 g / cm.

[0047] The liner is a segmented structure with a wear-resistant alloy layer welded to the inner surface, which is 4-6 mm thick. The liner is fixed to the inner wall of the crushing chamber by bolts. The gap adjustment device includes a hydraulic cylinder, a displacement sensor and a control system. The hydraulic cylinder drives the entire spindle system to move. The displacement sensor is a magnetostrictive type with a measurement accuracy of ±0.01 mm. The control system automatically adjusts the stroke of the hydraulic cylinder according to the set gap value.

[0048] The enclosed conveying channel's screw propeller adopts a centerless design, with screw blades 6-10 mm thick, made of Hardox450 wear-resistant steel plate, and a tungsten carbide wear-resistant layer 2-3 mm thick welded to the outer edge of the blades; the drive system of the screw propeller includes a variable frequency motor, a reducer, and a coupling; the variable frequency motor is a four-pole motor with a rated power of 7.5-22 kW; the reducer adopts a worm gear structure with a reduction ratio of 15-30:1; and the coupling adopts a flexible spline coupling.

[0049] The cooling water jacket is a jacketed structure with a spiral guide plate inside. The inlet temperature of the cooling water is no higher than 25 degrees Celsius, and the outlet temperature is no higher than 45 degrees Celsius. The outer wall of the water jacket is covered with thermal insulation material. The feed end of the conveying channel is equipped with a material level detection device, which adopts a radio frequency admittance material level switch with a detection accuracy of ±2 mm. The discharge end is equipped with a pressure relief valve with a set opening pressure of 0.05-0.1 MPa.

[0050] The transparent observation section in the recovery pipe of the negative pressure collection system is made of polycarbonate material with a wall thickness of 10-15 mm and a pressure resistance rating of 0.6 MPa; the detachable filter assembly includes a stainless steel frame and multiple layers of filter screens. The frame is connected by quick-release clamps, and the filter screens include a pre-filter and a high-efficiency filter. The pore size of the pre-filter is 100 micrometers, and the pore size of the high-efficiency filter is 20 micrometers.

[0051] The cyclone separator adopts a double-cone design, with an upper cone angle of 60 degrees and a lower cone angle of 30 degrees. The inlet adopts a tangential entry method, and the inlet wind speed is 18-22 m / s.

[0052] The centrifugal fan adopts a backward blade design, the impeller is dynamically balanced and the imbalance is no more than 1.0 g / cm. The fan shell is lined with wear-resistant ceramic sheets with a thickness of 3-5 mm.

[0053] The tangential entry design of the return interface includes a tapered nozzle and guide vanes. The nozzle outlet flow velocity is 5-10 m / s, and the guide vanes are installed at an angle of 15-30 degrees, forming a rotating flow field with the inner wall of the collection bin.

[0054] The material level monitoring device of the collection silo adopts an ultrasonic sensor with a measurement range of 0-5 meters, an accuracy of ±0.5% of full scale, and outputs a 4-20 mA analog signal; the ultrasonic sensor is installed on the top of the collection silo with an emission angle of 5 degrees and is equipped with an automatic cleaning device;

[0055] The capacitive sensor uses radio frequency technology and can detect materials with a dielectric constant greater than 1.5. The detection distance is 0-3 meters and the response time is no more than 100 milliseconds.

[0056] The pneumatic butterfly valve of the discharge valve adopts a three-dimensional eccentric structure, the valve seat material is polytetrafluoroethylene, the valve plate material is 316 stainless steel, the pneumatic actuator adopts a double-acting cylinder, and the working pressure is 0.4-0.6 MPa.

[0057] The electric gate valve adopts a rising stem structure, a double gate design, and a hard alloy sealing material. The electric actuator uses an intelligent electric head with torque protection and limit switch functions.

[0058] The damper controller in the wind speed regulation device of the wind separation channel adopts an intelligent electric actuator, which receives a 4-20 mA control signal, outputs a torque of 50-100 Nm, and has an overload protection function.

[0059] The wind speed sensor uses a thermal mass flow meter with a measurement accuracy of ±1% of the reading and outputs an RS485 communication signal.

[0060] The damper controller automatically adjusts the damper opening based on the feedback signal from the wind speed sensor using a PID control algorithm, with a control cycle of 100-200 milliseconds.

[0061] The tilt angle of the air separation channel is adjusted by a hinged support, which is equipped with an angle scale indicator and is locked with a wing nut. The air separation channel is equipped with a material dispersion device, including a rotary feeder and a guide plate. The rotary feeder rotates at a speed of 50-100 rpm, and the guide plate is adjustable in angle, with an adjustment range of 0-45 degrees.

[0062] The enclosed frame adopts a steel frame and steel plate welded structure, and the whole is subjected to stress relief annealing treatment. The inside of the frame is divided into a crushing area and a recycling area. The partition adopts a double-layer sandwich structure with sound-absorbing material in the middle, and the sound insulation effect is not less than 30 decibels.

[0063] The crushing area is equipped with an inspection door, the door frame adopts a labyrinth-style sealing structure, the sealing material is silicone rubber, and the door lock adopts a multi-point locking device; the recycling area is equipped with an observation window, the window glass is made of double-layer tempered glass with an explosion-proof film sandwiched in between.

[0064] The control panel mounting position is equipped with a shock absorption device, including a rubber shock absorber and a limit block. The control panel can move along the slide rail, and the slide rail travel is 300-500 mm. The bottom of the frame is equipped with an adjustable support, the height of which is adjustable within a range of ±50 mm. The bottom of the support is equipped with an anti-slip pad.

[0065] Example 2

[0066] The detailed workflow of the innovative integrated crushing and recycling technology described in this invention is as follows.

[0067] The workflow of this invention is as follows: The material to be processed first enters the coarse crushing mechanism, where it is crushed into smaller pieces under the biaxial shearing action driven by the hydraulic system, and then preliminarily screened through the discharge port grid screen.

[0068] Materials that meet the particle size requirements fall into a closed conveying channel and are conveyed at a constant speed by a screw propeller to the fine grinding mechanism, where they are further refined under the impact and grinding of high-speed rotating hammer blades.

[0069] The crushed material then enters the sorting system. First, it is classified by particle size through the three-layer screen of the vibrating screening unit. Then, the material of different particle sizes enters the air separation unit, where light and heavy materials are separated under the action of airflow with controllable wind speed.

[0070] The heavy target material falls directly into the collection bin below, while the light impurities and dust are drawn into the cyclone separator by the airflow generated by the negative pressure collection system. After centrifugal sedimentation separation, the collected dust particles are returned to the tangential interface on the side wall of the collection bin through the recycling pipe and are evenly mixed into the finished product by means of cyclone action.

[0071] The material in the collection bin is monitored in real time by the material level monitoring device. When the set capacity is reached, the pneumatic discharge valve at the bottom is automatically opened to output the final product, thus completing the integrated continuous operation of the entire process from crushing, sorting to recycling.

[0072] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0073] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0074] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An innovative integrated crushing and recycling technology, comprising a crushing device and a recycling device, characterized in that: The crushing device includes a coarse crushing mechanism and a fine crushing mechanism connected in series. The discharge port of the coarse crushing mechanism is connected to the inlet of the fine crushing mechanism through a closed conveying channel. The recycling device includes a collection bin, a sorting system, and a negative pressure collection system. The sorting system is located at the discharge end of the fine crushing mechanism and includes a vibrating screen unit and an air classifier unit. The air classifier unit is connected to the negative pressure collection system through a pipeline. A collection bin is located below the sorting system, and a discharge valve is located at the bottom of the collection bin. The negative pressure collection system includes a cyclone separator and a connecting fan. The inlet of the cyclone separator is connected to the outlet of the air classifier unit, and the outlet is connected to the return port on the side wall of the collection bin through a recycling pipeline.

2. The innovative integrated crushing and recycling technology according to claim 1, characterized in that: The vibrating screening unit in the sorting system adopts a three-layer screen structure, including an upper screen, a middle screen, and a bottom screen. The aperture range of the upper screen is 5-10 mm, the aperture range of the middle screen is 2-5 mm, and the aperture of the bottom screen is less than 2 mm. The air separation unit is located at the discharge end of the vibrating screening unit and includes an inclined air separation channel and an air speed adjustment device. The air inlet of the air separation channel is connected to the negative pressure collection system.

3. The innovative integrated crushing and recycling technology according to claim 1, characterized in that: The coarse crushing mechanism adopts a dual-shaft shearing crushing structure, including a moving blade group and a fixed blade group that mesh with each other. The moving blade group is controlled to rotate by a hydraulic drive system. The fine crushing mechanism adopts a high-speed rotating hammer structure. The gap between the end of the hammer and the liner is adjustable, with an adjustment range of 0.5-3 mm.

4. The innovative integrated crushing and recycling technology according to claim 1, characterized in that: The enclosed conveying channel is equipped with a spiral propeller, the rotation speed of which is controlled by a variable frequency motor; the outer wall of the conveying channel is equipped with a cooling water jacket, with the inlet and outlet of the cooling water jacket located at both ends of the channel respectively.

5. The innovative integrated crushing and recycling technology according to claim 1, characterized in that: The recovery pipe in the negative pressure collection system is equipped with a transparent observation section, and the observation section is equipped with a detachable filter assembly; the return interface adopts a tangential entry design, forming a swirling guide structure with the inner wall of the collection bin.

6. The innovative integrated crushing and recycling technology according to claim 1, characterized in that: The material collection silo is equipped with a material level monitoring device, which uses an ultrasonic sensor or a capacitive sensor; the discharge valve is a pneumatic butterfly valve or an electric gate valve, and the valve body opening size matches the bottom outlet of the material collection silo.

7. The innovative integrated crushing and recycling technology according to claim 2, characterized in that: The wind speed adjustment device of the air separation channel includes a damper controller and a wind speed sensor. The damper controller automatically adjusts the damper opening based on the feedback signal from the wind speed sensor. The tilt angle of the air separation channel is in the range of 30-60 degrees.

8. The innovative integrated crushing and recycling technology according to claim 1, characterized in that: The crushing device and the recycling device are installed together in a closed frame, and the inside of the frame is divided into a crushing area and a recycling area by a partition; the top of the frame is equipped with an inspection door, and the side is equipped with a control panel mounting position.

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