System for preparing superfine high-performance admixture from solid waste and operation method

Abstract

The invention discloses a system for preparing a superfine high-performance admixture from solid waste and an operation method thereof, and the system comprises a jaw crusher used for carrying out preliminary crushing on a solid waste material to obtain aggregate; the shaping type crusher is used for crushing and shaping the aggregate; the hydraulic grinding machine is used for grinding the aggregate; the high-efficiency low-resistance powder concentrator is used for sorting the aggregate into coarse aggregate and fine aggregate; a multi-stage screen powder concentrator; the fine aggregate screening device is used for further screening fine aggregate. The method not only improves the speed and efficiency of solid waste treatment, but also has important significance for environmental protection.

Description

Technical Field

[0001] The invention relates to the technical field of solid waste treatment and utilization, and in particular to a system for converting solid waste into ultrafine high-performance admixtures and an operating method thereof. Background Art

[0002] With the acceleration of industrialization and the development of social economy, a large amount of solid waste (such as slag, fly ash, etc.) generated in industrial production processes has caused serious environmental pollution. How to effectively treat these solid wastes and utilize them as resources has become one of the current problems that need to be solved urgently. Traditional solid waste treatment methods mostly use landfill or incineration, which not only occupies land resources but also easily produces secondary pollution; while harmless disposal through physical and chemical means can reduce environmental pollution, but the cost is high and the efficiency is low. Therefore, it is of great significance to develop new, efficient and low-energy comprehensive utilization technologies for solid waste.

[0003] Relevant studies in recent years have found that certain types of solid waste can be used as raw materials for building materials after proper pretreatment, and good results have been achieved. For example, using blast furnace slag to make microbeads for concrete mix can improve its strength performance; for example, crushing discarded glass bottles into powder and adding them to cement paste can help improve the latter's workability and flatness, etc. However, the market currently lacks a complete and mature management and control system for the entire process from collection and classification to final product molding, as well as related equipment and facilities supporting service projects to meet industry needs.

[0004] Therefore, it is urgent to propose a new generation of solid waste preparation ultrafine high-performance admixture system and its operation method based on the existing mature process flow with innovative improvements, in order to provide a reference basis and technical support for research in this field. Summary of the invention

[0005] In order to solve the problems existing in the prior art, the present invention proposes an innovative system for preparing ultrafine high-performance admixtures from solid waste and its operation method. The system aims to achieve a more efficient and environmentally friendly solid waste conversion process by optimizing the collaborative operation between multiple processes and combining newly designed special equipment. In addition, the present invention is also expected to provide valuable reference cases and technical support for further research and development in the field of solid waste resource utilization.

[0006] The object of the present invention is achieved through the following technical solution: a system for preparing ultra-fine high-performance admixture from solid waste, comprising:

[0007] Jaw crusher, used for preliminary crushing of solid waste materials and obtaining aggregates;

[0008] The shaping type crusher is used to crush and shape the aggregate;

[0009] Hydraulic mill for grinding aggregates;

[0010] High-efficiency, low-resistance powder separators are used to sort aggregates and separate them into coarse aggregates and fine aggregates;

[0011] Multi-stage screen powder classifier; used for further screening of fine aggregate.

[0012] Preferably, the jaw crusher comprises a frame, a crushing chamber, an adjusting device, a main shaft a, a flywheel, and a motor a; the frame is a four-walled rigid frame with upper and lower openings, the upper opening of the frame is an inlet a, and the lower opening is an outlet a; the crushing chamber is located in the front half of the frame, and a fixed jaw and a movable jaw are arranged in the crushing chamber; a through hole is arranged on the fixed jaw, and the fixed jaw is fixed in the frame through a transverse axis; a flywheel is installed at one end of the main shaft a; a belt is arranged between the motor a and the flywheel, the motor a is located on a supporting platform on the frame, and the supporting platform is connected to the frame by bolts; a fixed jaw liner and a movable jaw liner are respectively arranged on the fixed jaw and the movable jaw; the surfaces of the fixed jaw liner and the movable jaw liner are provided with longitudinal corrugations. Preferably, the whole crusher includes a machine body, a fixed impact wall, a movable impact wall, an impact lining, a faceplate, a hammer, a guard plate, and a motor b; the machine body serves as the supporting structure of the equipment; the faceplate is fixed on the main shaft b; the main shaft is arranged on the machine body; the hammer is arranged in the circumferential direction of the faceplate; the impact wall is fixed on the machine body; the impact lining is fixed on the inner side of the impact wall; the impact wall consists of two sections, namely a fixed impact wall and a movable impact wall; the movable impact wall is arranged on the machine body through a bearing; the motor b is located on the supporting plate on the rear side of the machine body, and the motor b is connected to the main shaft b for driving the main shaft b and the faceplate to rotate; a feed port b is arranged obliquely above the faceplate, and a guard plate is arranged below the feed port b.

[0013] Preferably, the hydraulic grinding machine comprises a housing, a grinding roller, a grinding disc, a rocker arm, a structural block, a hydraulic rod, a supporting column, a structural block, a motor c, a reducer, an inlet and an outlet; the supporting column is arranged on a load-bearing steel plate, the grinding disc is mounted on the top of the supporting column, and realizes rotational motion under the drive of the reducer; the reducer is arranged inside the supporting column; the grinding roller is mounted on the first steel arm, and the grinding roller can rotate freely; the steel arm is connected to the rocker arm; a small bearing and a large bearing are respectively provided at both ends of the rocker arm, and the rocker arm is rotatably connected to the first steel arm through the small bearing; the rocker arm is rotatably connected to the second steel arm through the large bearing, and the position of the grinding roller is realized through the rocker arm and the first steel arm The hydraulic rod includes a vertical hydraulic rod and a horizontal hydraulic rod; the upper end of the vertical hydraulic rod is connected to the first steel arm, and the lower end is connected to the structural block; the two ends of the horizontal hydraulic rod are respectively fixed to the right side of the structural block and one side of the supporting column; the motor is installed inside the structural block; the feed port c is located at the top of the box body, the upper end of the feed port c is open, and its lower end is directly aligned with the non-grinding area of ​​the grinding disc, which is convenient for the uniform distribution of materials; the dust suction port is arranged on the side of the box body, and the discharge port c is placed under the grinding disc, and one end thereof extends out from the side of the box body; a cap is provided on the feed port c; the height and the horizontal position of the grinding roller are adjusted respectively by the vertical hydraulic rod and the horizontal hydraulic rod.

[0014] Preferably, the grinding disc adopts an annular hollow structure, the rolling area on the upper side of the grinding disc is provided with a high-strength grid, and the lower side of the grinding disc is completely hollowed out; four cross beams are provided inside the grinding disc to support the high-strength grid; a strip steel block is installed on the upper end side of the support column, the strip steel block is fixed to the support column by bolts, and two steel sheets are used on both sides of the strip steel block to clamp a scraper; when the grinding disc rotates, the scraper maintains a static position unchanged, and evenly spreads the solid waste materials accumulated due to material unloading; a blocking plate is provided under the grinding disc, the blocking plate is circular and fixed to the side of the support column, and a hollow opening of the blocking plate is provided at the position corresponding to the discharge port c.

[0015] Preferably, a material turner is installed above the blocking disk, and the material turner consists of a rotating shaft and rectangular wings symmetrically arranged on both sides thereof; the rotating shaft is installed in the structure on both sides of the bottom of the grinding disk, and the rotating shaft can rotate on itself and drive the rectangular wings to rotate around the rotating shaft through rotation; the aggregate scattered on the blocking disk is turned over by the rotating action of the rectangular wings, so that the aggregate is evenly distributed, and the aggregate is guided to move to the discharge port c at the hollow opening of the blocking disk to achieve smooth discharge of the aggregate.

[0016] Preferably, a dust suction port is provided on one side of the box.

[0017] Preferably, the high-efficiency and low-resistance powder classifier comprises a wind tube, a material inlet d, a dust inlet, a motor d, a rotor, moving blades, stationary blades, a material outlet d and a fine material air flow inlet; the material inlet d and the dust inlet are both arranged on the upper left side of the wind tube; the motor d is installed on the top of the wind tube, the rotor is connected to the motor d, and the powder selection function is realized by driving the rotor to rotate by the motor d; the rotor is arranged at the center of the top wall inside the wind tube; the moving blades are fixed on the rotor, rotate with the rotor and generate centrifugal force; the stationary blades are installed on the inner wall of the wind tube and are located on the periphery of the moving blades, and are used in conjunction with the moving blades; the fine material air flow inlet is arranged at the upper right side of the wind tube; the cross-section of the stationary blades is "U"-shaped, and a "pocket cavity" structure is formed in the stationary blades, and the opening of the "pocket cavity" faces the inside of the wind tube; a plurality of stationary blades are provided, and the stationary blades are arranged on the inner wall of the wind tube in a circular array; the moving blades are U-shaped, and a material outlet d is provided at the bottom of the wind tube.

[0018] Preferably, the multi-stage screen powder classifier includes a chassis, an inlet e, a screen, a vibrator, a filter, a discharge port, an air induced draft port, and an induced draft fan; the fine material air flow inlet on the high-efficiency and low-resistance powder classifier is connected to the inlet e, and the inlet e is located at the upper left side of the chassis; a screen is installed inside the chassis, and the vibrator is installed on the chassis and connected to the screen; the filter is placed on the right side of the chassis as a pre-filter device for the air induced draft port; the induced draft fan is located on the right side of the chassis and is closely connected to the chassis, and the air induced by the induced draft fan causes the material particles in the chassis to move toward the direction of the induced draft fan; a discharge port e is provided on the left side of the lower end of each screen, and a support frame is provided at the bottom of the induced draft fan; the motor e of the induced draft fan is installed on the support frame.

[0019] An operating method for a system for preparing ultrafine high-performance admixtures from solid waste comprises the following steps:

[0020] Step 1: Preliminary crushing by jaw crusher: solid waste materials are first fed into the jaw crusher through the feed port a, and the jaw crusher performs preliminary crushing on the solid waste materials. The aggregates after preliminary crushing are discharged from the discharge port a, ready to enter the next process;

[0021] Step 2: The aggregate is further crushed and shaped by the sizing crusher; the aggregate after preliminary crushing is directly transported from the discharge port a to the feed port b of the sizing crusher through the conveying device; at this stage, the aggregate undergoes more refined crushing and shaping to improve its physical properties; the aggregate after the sizing crusher is discharged from the discharge port b, ready to enter the next stage of processing;

[0022] Step 3: Grind the aggregates through a hydraulic mill; the aggregates discharged from the whole crusher are transported to the inlet c of the hydraulic mill through a pipeline; inside the hydraulic mill, the aggregates are ground to a specified particle size and then discharged from the outlet c; the dust and fine particles generated during the grinding process are sucked out and effectively collected through the dust suction port;

[0023] Step 4: The high-efficiency low-resistance powder classifier vacuums and selects powder; the feed port d of the high-efficiency low-resistance powder classifier is connected to the discharge port c of the hydraulic mill, and the dust inlet is connected to the dust suction port of the hydraulic mill; the aggregate and dust are respectively introduced into the high-efficiency low-resistance powder classifier from the feed port d and the dust port, and then the high-efficiency low-resistance powder classifier starts to operate to classify the material and sort the material into coarse aggregate and fine aggregate; the coarse aggregate slides from the discharge port d, and after the particle size inspection, the coarse aggregate that does not meet the standard will be sent back to the hydraulic mill for secondary grinding; the coarse aggregate that meets the standard will continue to enter the next process; the fine aggregate will be discharged from the fine material air flow outlet, ready for the next step of processing;

[0024] Step 5: The fine material air flow outlet is connected to the inlet e of the multi-stage screen powder classifier; after the fine aggregate enters the multi-stage screen powder classifier from the inlet e, it is screened by the multi-layer screen inside the multi-stage screen powder classifier to further separate the fine aggregate that meets the particle size requirements; the screened fine aggregate is discharged from the outlet e, while impurities and dust are intercepted by the filter;

[0025] Step 6: The selected coarse aggregate and fine aggregate are modified in different containers;

[0026] Step 7: The modified coarse aggregate and fine aggregate are mixed in a predetermined proportion to form a final high-performance admixture product.

[0027] The beneficial effects of the present invention are as follows:

[0028] 1) High efficiency: The present invention significantly improves the speed and efficiency of solid waste treatment by optimizing the coordinated operation of multiple processes and combining the design of new special equipment. For example, the design features of equipment such as jaw crushers, integral crushers and new hydraulic mills are all aimed at speeding up the material processing speed and improving productivity.

[0029] 2) Environmental protection: The system design focuses on environmental protection. For example, the dust suction port design of the new hydraulic grinding machine can effectively capture the dust generated during the grinding process to prevent environmental pollution; the precise design of the high-efficiency low-resistance powder classifier and the multi-stage screen powder classifier ensures the effective recovery of fine powder and reduces resource waste.

[0030] 3) Flexibility and adaptability: Each component in the system of the present invention can be flexibly adjusted according to different types of solid waste materials, such as the grinding roller angle adjustment function of the new hydraulic grinding machine and the replaceable grid design of the grinding disc, which can meet the needs of processing a variety of materials and improve the adaptability and application range of the system.

[0031] 4) Resource Utilization: The present invention converts solid waste into ultra-fine high-performance admixtures, realizes the resource utilization of solid waste, reduces the exploitation of natural resources, and has important environmental and economic dual values. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of a jaw crusher;

[0033] Figure 2 This is a schematic diagram of a whole crusher;

[0034] Figure 3 This is a schematic diagram of a new hydraulic mill;

[0035] Figure 4 This is a top view of the millstone;

[0036] Figure 5 It is a top view of the blocking plate;

[0037] Figure 6 This is a schematic diagram of a high-efficiency, low-resistance powder separator;

[0038] Figure 7 This is a detailed diagram of the U rotor blades

[0039] Figure 8 This is a detailed diagram of the stationary blades

[0040] Fig. 9 It is a schematic diagram of a multi-stage screen powder selection machine;

[0041] Fig.10 It is a process flow chart of a system for preparing ultra-fine high-performance admixtures from solid waste;

[0042] in:

[0043] 101. inlet a; 102. fixed jaw; 103. movable jaw; 104. flywheel; 105. motor a; 106. support platform; 107. adjustment device; 108. belt; 109. bolt a; 1010. fixed jaw lining plate; 1011. movable jaw lining plate; 1012. longitudinal corrugation; 1013. through hole; 1014. frame; 1015 outlet a; 1016. spindle a;

[0044] 201. feeding port b; 202. fixed impact wall a; 203. movable impact wall; 204. bearing; 205. motor b; 206. faceplate; 207. hammer head; 208. machine body; 209. guard plate; 2010. spindle b; 2011. bearing plate; 2012. discharging port b; 2013. impact lining plate;

[0045] 301. Box body; 302. Load-bearing steel plate; 303. Support column; 304. Grinding disc; 305. Crossbeam; 306. Blocking disc; 307. Blocking disc hollow opening; 308. Bar steel block; 309. Steel sheet; 3010. Bolt b; 3011. Scraper; 3012. Turner; 3013. Rotating shaft; 3014. Grinding roller; 3015. First steel arm; 3016. Small bearing; 3017. Rocker arm; 3018. Large bearing; 3019. Vertical hydraulic rod; 3020. Fast structure; 3021. Motor c; 3022. Horizontal hydraulic rod; 3023. Feeding port c; 3024. Cover cap; 3025. Bolt c; 3026. Dust suction port; 3027. High-strength grid; 3028. Discharging port c;

[0046] 401. air cylinder; 402. inlet d; 403. dust inlet; 404. motor d; 405. rotor; 406. moving blades; 407. stationary blades; 408. fine material air flow outlet; 409. outlet d;

[0047] 501. Chassis; 502. Feed inlet e; 503. Screen; 504. Vibrator; 505. Filter; 506. Air inlet; 507. Draft fan; 508. Support frame; 509. Motor e. DETAILED DESCRIPTION

[0048] The present invention is further described below in conjunction with embodiments. The description of the following embodiments is only used to help understand the present invention. It should be noted that for ordinary persons in the art, without departing from the principle of the present invention, the present invention can also be modified in some ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

[0049] like Figure 1As shown, a jaw crusher comprises: a frame 1014, a crushing chamber, an adjusting device 107, a main shaft a1016, a flywheel 104, and a motor a105; the frame 1014 is a four-walled rigid frame with upper and lower openings, which is used as the main supporting structure, the upper opening of the frame 1014 is an inlet a101, and the lower opening is an outlet a1015; the crushing chamber is located in the front half of the frame, and a fixed jaw 102 and a movable jaw 103 are arranged in the crushing chamber; a through hole 1013 is arranged on the fixed jaw 102, and the fixed jaw 102 is fixed in the frame 1014 through a transverse axis; the main shaft a1016 is subjected to huge bending and torsion force, and is made of high carbon steel; a flywheel 104 is installed at one end of the main shaft a1016; The wheel 104 is driven by the motor a105, and a belt 108 is arranged between the motor a105 and the flywheel 104, and the transmission is carried out through the belt 108, and the flywheel 104 is used to store the energy of the movable jaw 103 during the idle stroke; the adjustment device 107 is connected to the movable jaw 103, and is used to adjust the crushing frequency of the movable jaw 103 and the size of the discharge port 1015; the motor a105 is located on the support 106 on the frame 1014, and the support 106 and the frame 1014 are connected by bolts 109; the fixed jaw 102 and the movable jaw 103 are respectively provided with a fixed jaw lining plate 1010 and a movable jaw lining plate 1011; the surfaces of the fixed jaw lining plate 1010 and the movable jaw lining plate 1011 are provided with longitudinal corrugations 1012 to improve the crushing effect;

[0050] like Figure 2 As shown, a whole type crusher, the device mainly comprises: a body 208, a fixed impact wall 202, a movable impact wall 203, an impact lining 2013, a faceplate 206, a hammer 207, a guard plate 209, and a motor b205; the body 208 serves as a supporting structure of the equipment; the crushing device is mainly composed of a faceplate 206 and a hammer 207; the faceplate 207 is fixed on the main shaft b2010; the main shaft 2010 is arranged on the body 208; the hammer 207 is arranged in the circumferential direction of the faceplate 206; the impact wall is fixed on the body 208; the impact lining 2013 is fixed on the inner side of the impact wall; the impact wall is composed of two sections, namely a fixed impact wall 202 and a movable impact wall. The movable impact wall 203 is arranged on the machine body 208 through the bearing 204, and it can rotate slightly around the bearing 204 with the impact, so as to adjust the discharge size; the motor b205 is located on the support plate 2011 on the rear side of the machine body 208, and the motor b205 is connected to the main shaft b2010 through a transmission mechanism such as a belt, so as to drive the main shaft b2010 and the faceplate 206 to rotate and provide power for the device; the faceplate 206 rotates clockwise, so that its hammering direction is the impact wall direction; a feed port b201 is arranged obliquely above the faceplate 206, and a guard plate 209 is arranged below the feed port b201, so as to facilitate feeding and prevent fragments from flying out.

[0051] like Figure 3As shown, a hydraulic grinding machine is mainly composed of: a box body 301, a grinding roller 3014, a grinding disc 304, a rocker arm 3017, a structural block 3020, a hydraulic rod, a supporting column 303, a structural block 3020, a motor c3021, a reducer 3027, an inlet 3023, an outlet 3028, and a dust suction port 3026; the box body 301 is a rectangular structure, which serves as an overall protection and sealing device of the grinding machine to prevent dust leakage. The support column 303 is arranged on the load-bearing steel plate 302, and the grinding disc 304 is installed on the top of the support column 303 and realizes rotational motion under the drive of the reducer 3027; the reducer 3027 is arranged inside the support column 303 and is responsible for driving the grinding disc 304 to rotate; the grinding roller 3014 is installed on the first steel arm 3015, and the grinding roller 3014 can rotate freely; the steel arm 3015 is connected to the rocker arm 3017; the two ends of the rocker arm 3017 are respectively provided with a small bearing 3016 and a large bearing 3018, and the rocker arm 3017 is connected to the first steel arm 3015; the first steel arm 3015 ... The small bearing 3016 is rotatably connected to the first steel arm 3015; the rocker arm 3017 is rotatably connected to the second steel arm through the large bearing 3018, and the position of the grinding roller 3014 is adjusted through the rocker arm and the first steel arm; the hydraulic rod includes a vertical hydraulic rod 3019 and a horizontal hydraulic rod 3022; the upper end of the vertical hydraulic rod 3019 is connected to the first steel arm 3015, and the lower end is connected to the structural block 3020; the two ends of the horizontal hydraulic rod 3022 are respectively fixed to the right side of the structural block 3020 and one side of the support column 303. The motor 3021 is installed inside the structural block 3020 to provide a power source for the hydraulic mill; the feed port c3023 is located at the top of the box body 301, the upper end of the feed port c3023 is open, and its lower end is directly aligned with the non-grinding area of ​​the grinding disc 304, which is convenient for the uniform distribution of materials; the dust suction port 3026 is set on the side of the box body 301, and is fixedly connected to the box body 301 through bolts 3025. The discharge port c3028 is placed below the grinding disc 304, and one end of the discharge port extends from the side of the box 301 to facilitate the discharge of finished materials; the feed port c3023 is equipped with a cap 3024, which can be automatically closed after feeding, effectively preventing the raised aggregates from escaping from the feed port during the rolling process, ensuring the cleanliness and safety of the working environment. The grinding roller 3014 can be adjusted in angle through the rocker arm 3017 to meet different grinding requirements; at the same time, the vertical hydraulic rod 3019 and the horizontal hydraulic rod 3022 are used to adjust the height and horizontal position of the grinding roller 3014 respectively, so as to cooperate with the rocker arm 3017 to accurately control the grinding force of the grinding roller 3014.

[0052] like Figure 3 , Figure 4As shown, the grinding disc 304 adopts an annular hollow structure design, and the upper rolling area of ​​the grinding disc 304 is provided with a high-strength grid, and the mesh number of the high-strength grid can be determined according to actual needs; while the lower side of the grinding disc 304 is completely hollow. In addition, four crossbeams 305 are arranged inside the grinding disc 304 to support the high-strength grid. This design can adapt to different discharge particle size requirements, that is, high-strength grids with different mesh numbers can be flexibly replaced according to actual needs, so as to accurately control the particle size of the material after grinding. When the solid waste particles are ground to reach the preset particle size standard, they can smoothly pass through the high-strength grid and fall down, thereby completing the effective screening and control process of the material particle size.

[0053] A strip steel block 308 is installed on the upper side of the support column 303, and the strip steel block 308 is fixed to the support column 303 by bolts 3010, and two steel sheets 309 are used to clamp a scraper 3011 on both sides of the strip steel block 308. When the grinding disc 304 rotates, the scraper 3011 remains in a static position, which can effectively spread the solid waste materials accumulated due to material feeding, so as to facilitate the grinding roller to perform grinding operations more efficiently and smoothly. A blocking plate 306 is provided below the grinding disc 304. The blocking plate 306 is circular and fixed to the side of the supporting column 303, and a blocking plate hollow opening 307 is provided at the position corresponding to the discharge port c3028; its main function is to intercept and collect the aggregates falling from the grinding disc mesh 3027, and discharge these aggregates smoothly through the blocking plate hollow opening 307 at the discharge port; this design helps to improve the collection efficiency during the material processing process and ensure that fine particles or powders are not scattered at will.

[0054] like Figure 3 , Figure 5 As shown, a turner 3012 is installed above the blocking disc 306, and the turner 3012 is composed of a rotating shaft 3013 and rectangular wings symmetrically arranged on both sides thereof; the rotating shaft 3012 is installed in the structure on both sides of the bottom of the grinding disc 304, and can move with the rotation of the grinding disc 304, and can also rotate by itself, wherein the rotating shaft 3013 is connected to a rotating drive device such as a motor to provide power for the self-rotation of the rotating shaft 3013, and the self-rotation of the rotating shaft 3013 drives the rectangular wings to rotate around the rotating shaft 3013; the main function of the turner is to turn the aggregates scattered on the blocking disc 306 through the rotation of the rectangular wings during the operation of the grinding disc, so as to promote a more even distribution of the aggregates, and effectively guide them to move to the discharge port c3028 at the hollow opening 307 of the blocking disc, so as to achieve smooth discharge of the aggregates.

[0055] The dust suction port 3026 is located on one side of the box body 301 and is specially designed to timely absorb the dust raised during the grinding process, effectively preventing these fine particles from entering the interior of the grinding machine and avoiding mechanical jamming or other failures caused by it.

[0056] like Figure 6 As shown, a high-efficiency low-resistance powder classifier is mainly composed of: a wind tube 401, a material inlet d402, a dust inlet 403, a motor d404, a rotor 405, a moving blade 406, a stationary blade 407, a material outlet d409 and a fine material air flow outlet 408; the wind tube 401 is the outer shell of the entire powder classifier, which is used to protect the internal structure and prevent the aggregate from scattering; the material inlet d402 and the dust inlet 403 are both arranged on the upper left side of the wind tube 401, which is convenient for the introduction of materials and dust to ensure efficient processing; the motor d404 is installed on the top of the wind tube 401, and the rotor 405 is installed on the top of the wind tube 401. 05 is connected to the motor d404, and the motor d404 drives the rotor 405 to rotate to realize the powder selection function; the rotor 405 is set at the center of the top wall inside the wind tube 401; the moving blades 406 are fixed on the rotor 405, and rotate with the rotor 405 to generate centrifugal force for classifying the materials; the static blades 407 are installed on the inner wall of the wind tube 401 and are located on the periphery of the dynamic blades 406, and are used together with the dynamic blades 406 to optimize the airflow path and improve the powder selection efficiency; the fine material airflow inlet 408 is set at the upper right side of the wind tube 401. This layout design is intended to ensure that the fine aggregate after screening can be effectively sucked in and discharged through the fine material airflow inlet 408. Figure 8 As shown, the cross section of the stationary blade 407 is "U"-shaped, and a "pocket cavity" structure is formed in the stationary blade 407, and the opening of the "pocket cavity" faces the inner side of the wind tube 401; a plurality of stationary blades 407 are provided, and the stationary blades 407 are arranged in a circular array on the inner wall of the wind tube 401. The advantage of this design is that when the rotor 405 performs classification processing on the material, the coarse powder that does not meet the required fineness standard can directly fall into the "pocket cavity" structure of the stationary blade 407; in this way, it can effectively prevent these coarse powders from being mixed into the powder selection area again, thereby avoiding their unnecessary interference with the powder selection process, and ensuring the accuracy and efficiency of the powder selection operation; as shown in FIG. Figure 7 As shown, the moving blade 406 is U-shaped, and the U-shaped moving blade 406 can effectively reduce the radial wind speed entering the powder classifier rotor 405, thereby reducing the rotation speed and resistance of the powder classifier. A discharge port d409 is provided at the bottom of the air cylinder 401.

[0057] The material is fed into the powder classifier through the feed port d402. At the same time, air or airflow (carrying dust) enters the air cylinder 401 through the dust inlet 403. This airflow helps to suspend and disperse the material so that it is more evenly distributed. The motor d404 drives the rotor 405 to rotate, driving the moving blades 406 fixed thereon to rotate together. The rotation of the moving blades 406 generates a strong centrifugal force. When the material enters this high-speed rotating area, the lighter fine particles will be less affected by the centrifugal force, while the heavier coarse particles will be thrown outward. Under the action of centrifugal force, the material begins to stratify according to its particle size. Due to its light weight, the fine particles are not easily thrown out under the action of centrifugal force, but move upward with the air flow, and are finally discharged from the fine material air flow port 408 and collected as qualified products. Relatively large particles, due to their large mass, will be pushed to the periphery under the action of centrifugal force and hit the stationary blades 407.

[0058] The stationary blades 407 are designed to capture coarse powder that does not meet the required fineness standard. Once these coarse powders enter the "pocket cavity" structure of the stationary blades 407 and contact the stationary blades 407, they will lose kinetic energy and slide along the surface of the stationary blades 407 to the bottom of the wind tube, and finally be discharged through the discharge port d409 to be recovered as coarse material or reprocessed. This design effectively prevents the coarse powder from being mixed into the powder selection area again, thereby improving the accuracy and efficiency of powder selection.

[0059] The moving blade 406 adopts a U-shaped design, which can effectively adjust the direction and speed of the airflow entering the powder selection area. The U-shaped structure can guide the airflow to gather toward the center and reduce the radial wind speed, which not only reduces the overall operating resistance of the powder classifier, but also reduces unnecessary energy consumption, so that fine powder can be carried away by the airflow more smoothly.

[0060] The coordination between the stationary blades 407 and the moving blades 406, as well as their specific shape design, together optimize the airflow path in the powder classifier. This optimization ensures that the airflow can efficiently carry out fine powder while minimizing the remixing of coarse powder, thereby improving the powder selection effect.

[0061] like Figure 7As shown, a multi-stage screen powder classifier is mainly composed of: a chassis 501, an inlet e502, a screen 503, a vibrator 504, a filter 505, an outlet 5010, an air inlet 506, an air fan 5057 and a motor 509; the chassis 501 is the core structure of the entire device; the fine material air flow inlet 408 on the high-efficiency low-resistance powder classifier is connected to the inlet e502, and the inlet e502 is located on the upper left side of the chassis 501 to facilitate the introduction of materials; a screen 503 is installed inside the chassis 501, and the vibrator 504 is installed on the chassis 501 and connected to the screen 503, which assists the material to be evenly distributed on the screen by generating vibration, and promotes the material to pass through the screen, thereby improving the screening efficiency; the screen 503 can be configured with multiple layers of screens 503 according to the requirements of the material particle size to achieve Accurate screening of materials; the filter 505 is placed on the right side of the chassis 501, as a pre-filter device of the induced air outlet 506, aiming to prevent dust from escaping from the chassis during the induced air process; the induced draft fan 507 is located on the right side of the chassis 501, and is closely connected to the chassis 501. The induced air effect of the induced draft fan 507 causes the material particles in the chassis 501 to move toward the induced draft fan 507; when the material enters the multi-stage screen powder selector, it is intercepted when passing through the screen 503 of a specific particle size. A discharge port e is provided on the left side of the lower end of each screen 503. The vibration of the vibrator 504 causes the materials intercepted on the screen 503 to fall into the corresponding discharge port e below; a support frame 508 is provided at the bottom of the induced draft fan 507; the motor e509 of the induced draft fan 507 is installed on the support frame 508.

[0062] like Figure 8 As shown, an operation method of a system for preparing ultrafine high-performance admixture from solid waste comprises the following steps:

[0063] Step 1: Preliminary crushing by jaw crusher: Solid waste materials are first fed into the jaw crusher through the feed port a101, and the jaw crusher performs preliminary crushing on the solid waste materials to reduce the size of the materials for subsequent processing. The aggregates after preliminary crushing are discharged from the discharge port a1015 and are ready to enter the next process.

[0064] Step 2: The aggregate is further crushed and shaped by a shaping crusher; the aggregate after preliminary crushing is directly transported from the discharge port a1015 to the feed port b201 of the shaping crusher through a conveying device; at this stage, the aggregate will undergo more refined crushing and shaping to improve its physical properties; the aggregate after processing by the shaping crusher is discharged from the discharge port b2012, ready to enter the next stage of processing.

[0065] Step three: Grind the aggregate by a hydraulic grinder; the aggregate discharged from the whole-type crusher is transported to the feed port c3023 of the hydraulic grinder through a pipeline; inside the hydraulic grinder, the aggregate is ground to a specified particle size and then discharged from the discharge port c3028; the dust and fine particles generated during the grinding process are sucked out and effectively collected through the dust suction port 3026 to prevent environmental pollution.

[0066] Step 4: The high-efficiency low-resistance powder classifier vacuums and selects powder; the feed port d402 of the high-efficiency low-resistance powder classifier is connected to the discharge port c3028 of the hydraulic mill, and the dust inlet 403 is connected to the dust suction port 3026 of the hydraulic mill; the aggregate and dust are respectively introduced into the high-efficiency low-resistance powder classifier from the feed port d402 and the dust port 403, and then the high-efficiency low-resistance powder classifier starts to operate, and the material is accurately graded and sorted into coarse aggregate and fine aggregate; the coarse aggregate slides down from the discharge port d409, and after the particle size inspection, the coarse aggregate that does not meet the standard will be sent back to the hydraulic mill for secondary grinding; the coarse aggregate that meets the standard will continue to enter the next process; the fine aggregate will be discharged from the fine material air flow outlet 408, ready for the next step of processing.

[0067] Step 5: The fine material air flow inlet 408 is connected to the inlet e502 of the multi-stage screen powder classifier; after the fine aggregate enters the multi-stage screen powder classifier from the inlet e502, it is screened by the multiple layers of screens inside the multi-stage screen powder classifier to further separate the fine aggregate that meets the particle size requirements; the screened fine aggregate is discharged from the outlet e5010, while impurities and dust are intercepted by the filter 505 to prevent them from polluting the environment.

[0068] Step 6: The selected coarse aggregate and fine aggregate are modified in different containers to meet the needs of specific application scenarios; the modification can include chemical modification, physical modification and other methods to improve the performance of the material.

[0069] Step 7: The modified coarse aggregate and fine aggregate are mixed in a predetermined ratio to form the final high-performance admixture product; through precise proportioning, the finished product is ensured to have excellent performance and is suitable for various engineering requirements.

Claims

1. A system for preparing ultra-fine high-performance admixtures from solid waste, characterized in that: include: Jaw crusher, used for preliminary crushing of solid waste materials and obtaining aggregates; The shaping type crusher is used to crush and shape the aggregate; Hydraulic mill for grinding aggregates; High-efficiency, low-resistance powder separators are used to sort aggregates and separate them into coarse aggregates and fine aggregates; Multi-stage screen powder classifier; used for further screening of fine aggregate.

2. The system for preparing ultrafine high-performance admixture from solid waste according to claim 1, characterized in that: The jaw crusher comprises a frame (1014), a crushing chamber, an adjusting device (107), a main shaft a (101) (6), a flywheel (104), and a motor a (105); the frame (1014) is a four-walled rigid frame with upper and lower openings, the upper opening of the frame (1014) is an inlet a (101), and the lower opening is an outlet a (1015); the crushing chamber is located in the front half of the frame, and a fixed jaw (102) and a movable jaw (103) are arranged in the crushing chamber; a through hole (1013) is arranged on the fixed jaw (102), and the fixed jaw (102) is fixed to the frame (105) through a transverse axis. 1014); a flywheel (104) is mounted on one end of a main shaft a (1016); a belt (108) is arranged between a motor a (105) and the flywheel (104); the motor a (105) is located on a support platform (106) on a frame (1014); the support platform (106) and the frame (1014) are connected by bolts (109); a fixed jaw lining plate (1010) and a movable jaw lining plate (1011) are respectively arranged on the fixed jaw (102) and the movable jaw (103); longitudinal corrugations (1012) are arranged on the surfaces of the fixed jaw lining plate (1010) and the movable jaw lining plate (1011).

3. The system for preparing ultrafine high-performance admixture from solid waste according to claim 1, characterized in that: The whole crusher comprises a machine body (208), a fixed impact wall (202), a movable impact wall (203), an impact lining (2013), a faceplate (206), a hammer (207), a guard plate (209), and a motor b (205); the machine body (208) serves as a supporting structure of the equipment; the faceplate (207) is fixed on a main shaft b (2010); the main shaft (2010) is arranged on the machine body (208); the hammer (207) is arranged in the circumferential direction of the faceplate (206); the impact wall is fixed on the machine body (208); the impact lining (201) (3) is fixed on the impact wall The inner side of the machine body (208); the counter-attack wall is composed of two sections, namely a fixed counter-attack wall (202) and a movable counter-attack wall (203); the movable counter-attack wall (203) is arranged on the machine body (208) through a bearing (204); the motor b (205) is located on the support plate (201) (1) on the rear side of the machine body (208), and the motor b (205) is connected to the main shaft b (2010) for driving the main shaft b (2010) and the face plate (206) to rotate; a feed inlet b (201) is arranged obliquely above the face plate (206), and a guard plate (209) is arranged below the feed inlet b (201).

4. The system for preparing ultrafine high-performance admixture from solid waste according to claim 1, characterized in that: The hydraulic grinding machine comprises a housing (301), a grinding roller (3014), a grinding disc (304), a rocker arm (301)(7), a structural block (302)(0), a hydraulic rod, a supporting column (303), a structural block (3020), a motor c (3021), a reducer (3027), an inlet (3023), and an outlet (3028); the supporting column (303) is arranged on a load-bearing steel plate (302), the grinding disc (304) is installed on the top of the supporting column (303), and is driven by the reducer (3027) to realize The reducer (3027) is arranged inside the support column (303); the grinding roller (3014) is installed on the first steel arm (3015), and the grinding roller (3014) can rotate freely; the steel arm (3015) is connected to the rocker arm (3017); a small bearing (3016) and a large bearing (3018) are respectively arranged at both ends of the rocker arm (3017), and the rocker arm (3017) is rotatably connected to the first steel arm (3015) through the small bearing (3016); the rocker arm (3017) is rotatably connected to the second steel arm through the large bearing (3018) The hydraulic rod comprises a vertical hydraulic rod (3019) and a horizontal hydraulic rod (3022); the upper end of the vertical hydraulic rod (3019) is connected to the first steel arm (3015), and the lower end is connected to the structural block (3020); the two ends of the horizontal hydraulic rod (3022) are respectively fixed to the right side of the structural block (3020) and one side of the supporting column (303); the motor (3021) is installed inside the structural block (3020); the feed port c (3023) is located at the box The top of the box body (301) has an opening at the upper end of the feed port c (3023), and its lower end is directly aligned with the non-grinding area of ​​the grinding disc (304), so as to facilitate the uniform distribution of the material; the dust suction port (3026) is arranged on the side of the box body (301), and the discharge port c (3028) is placed below the grinding disc (304), and one end thereof extends out from the side of the box body (301); a cover cap (3024) is provided on the feed port c; and the height and the horizontal position of the grinding roller (3014) are respectively adjusted by means of a vertical hydraulic rod (3019) and a horizontal hydraulic rod (3022).

5. The system for preparing ultrafine high-performance admixture from solid waste according to claim 4, characterized in that: The grinding disc (304) adopts an annular hollow structure, the rolling area on the upper side of the grinding disc (304) is provided with a high-strength grid, and the lower side of the grinding disc (304) is completely hollowed out; four cross beams (305) are provided inside the grinding disc (304) for supporting the high-strength grid; a strip steel block (308) is installed on the upper side of the support column (303); the strip steel block (308) is fixed to the support column (303) by bolts (3010), and the strip steel block (308) Two steel sheets (309) are used to clamp a scraper (3011) on both sides; when the grinding disc (304) rotates, the scraper (3011) remains in a stationary position and evenly spreads the solid waste materials accumulated due to material discharge; a blocking disc (306) is provided below the grinding disc (304), the blocking disc (306) is circular and fixed to the side of the support column (303), and a blocking disc hollow opening (307) is provided at the position corresponding to the discharge port c (3028).

6. The system for preparing ultra-fine high-performance admixture from solid waste according to claim 5, characterized in that: A material turner (3012) is installed above the blocking disk (306), and the material turner (3012) is composed of a rotating shaft (301) (3) and rectangular wings symmetrically arranged on both sides thereof; the rotating shaft (3013) is installed in the structure on both sides of the bottom of the grinding disk (304), and the rotating shaft (3013) can rotate and drive the rectangular wings to rotate around the rotating shaft (3013) through the rotation; the aggregates scattered on the blocking disk (306) are turned over by the rotating action of the rectangular wings, so that the aggregates are evenly distributed, and the aggregates are guided to move to the discharge port c (3028) at the hollow port (307) of the blocking disk to achieve smooth discharge of the aggregates.

7. The system for preparing ultrafine high-performance admixture from solid waste according to claim 4, characterized in that: A dust suction port (3026) is provided on one side of the box body (301).

8. The system for preparing ultra-fine high-performance admixture from solid waste according to claim 1, characterized in that: The high-efficiency low-resistance powder separator comprises a wind tube (401), a material inlet d (402), a dust inlet (403), a motor d (404), a rotor (405), moving blades (406), stationary blades (407), a material outlet d (409) and a fine material air flow outlet (408); the material inlet d (402) and the dust inlet (403) are both arranged at the upper left part of the wind tube (401); the motor d (404) is installed at the top of the wind tube (401), the rotor (405) is connected to the motor d (404), and the motor d (404) drives the rotor (405) to rotate to realize the powder separation function; the rotor (405) is arranged at the center position of the top wall inside the wind tube (401); the moving blades (406) are fixed to the rotor (405) ) and rotates with the rotor (405) to generate centrifugal force; the stationary blades (407) are mounted on the inner wall of the wind tube (401) and are located on the periphery of the moving blades (406) and are used in conjunction with the moving blades (406); the fine material air flow inlet (408) is arranged at the upper right side of the wind tube (401); the cross section of the stationary blades (407) is "U"-shaped, and a "pocket cavity" structure is formed in the stationary blades (407), and the opening of the "pocket cavity" faces the inner side of the wind tube (401); a plurality of stationary blades (407) are provided, and the stationary blades (407) are arranged on the inner wall of the wind tube (401) in a circular array; the moving blades (406) are U-shaped, and a discharge port d (409) is provided at the bottom of the wind tube (401).

9. The system for preparing ultrafine high-performance admixture from solid waste according to claim 1, characterized in that: The multi-stage screen powder classifier comprises a chassis (501), a feed inlet e (502), a screen (503), a vibrator (504), a filter (505), a discharge port (501)(0), an air inlet (506), and an induced draft fan (505)(7); the fine material air flow inlet (408) on the high-efficiency low-resistance powder classifier is connected to the feed inlet e (502), and the feed inlet e (502) is located at the upper left side of the chassis (501); A screen (503) is installed inside the chassis (501), and a vibrator (504) is installed on the chassis (501) and connected to the screen (503); a filter (505) is placed on the right side of the chassis (501) and serves as a pre-filtering device for an air inlet (506); an induced draft fan (507) is located on the right side of the chassis (501) and is closely connected to the chassis (501), and the induced draft fan (507) causes the material particles in the chassis (501) to move toward the induced draft fan (507) through the induced draft effect; a discharge port e is provided on the left side of the lower end of each screen (503), and a support frame (508) is provided at the bottom of the induced draft fan (507); a motor e (509) of the induced draft fan (507) is installed on the support frame (508).

10. An operating method for a system for preparing ultrafine high-performance admixtures from solid waste, characterized in that: The following steps are involved: Step 1: Preliminary crushing by jaw crusher: solid waste materials are first fed into the jaw crusher through the feed port a (101), and the jaw crusher performs preliminary crushing on the solid waste materials. The aggregate after preliminary crushing is discharged from the discharge port a (1015) and is ready to enter the next process; Step 2: The aggregate is further crushed and shaped by the sizing crusher; the aggregate after preliminary crushing is directly transported from the discharge port a (1015) to the feed port b (201) of the sizing crusher through the conveying device; at this stage, the aggregate undergoes more refined crushing and shaping to improve its physical properties; the aggregate after the sizing crusher is discharged from the discharge port b (2012) and is ready to enter the next stage of processing; Step 3: Grind the aggregate by a hydraulic mill; the aggregate discharged from the whole crusher is transported to the feed port c (3023) of the hydraulic mill through a pipeline; inside the hydraulic mill, the aggregate is ground to a specified particle size and then discharged from the discharge port c (3028); the dust and fine particles generated during the grinding process are sucked out and effectively collected through the dust suction port (3026); Step 4: The high-efficiency low-resistance powder classifier vacuums and selects powder; the feed port d (402) of the high-efficiency low-resistance powder classifier is connected to the discharge port c (3028) of the hydraulic mill, and the dust inlet (403) is connected to the dust suction port (3026) of the hydraulic mill; the aggregate and dust are respectively introduced into the high-efficiency low-resistance powder classifier from the feed port d (402) and the dust port (403), and then the high-efficiency low-resistance powder classifier starts to operate, classifies the material, and selects the material into coarse aggregate and fine aggregate; the coarse aggregate slides from the discharge port d (409), and after the particle size inspection, the coarse aggregate that does not meet the standard will be sent back to the hydraulic mill for secondary grinding; the coarse aggregate that meets the standard will continue to enter the next process; the fine aggregate is discharged from the fine material air flow outlet (408) to prepare for the next step of processing; Step 5: the fine material air flow inlet (408) is connected to the inlet e (502) of the multi-stage screen powder classifier; after the fine aggregate enters the multi-stage screen powder classifier from the inlet e (502), it is screened by the multiple layers of screens inside the multi-stage screen powder classifier to further separate the fine aggregate that meets the particle size requirements; the screened fine aggregate is discharged from the outlet e (5010), while impurities and dust are intercepted by the filter (505); Step 6: The selected coarse aggregate and fine aggregate are modified in different containers; Step 7: The modified coarse aggregate and fine aggregate are mixed in a predetermined proportion to form a final high-performance admixture product.

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