CN211866151U - Online broken integrated recovery system of steel scrap - Google Patents

Abstract

The utility model discloses a comprehensive recovery system for on-line crushing of scrap steel, which comprises a pre-crushing system, a crushing system, a dust collecting system, a magnetic separation system, a distributing system, a non-ferrous sorting system, a circulating cooling water system and a spraying system which are integrated online through a control system. shower system. Among them, the pre-crushing system is used to pre-crumb the incoming scrap steel baled blocks; the crushing system is used to crush the pre-crushed materials and bulk materials to obtain crushed materials and dust-containing exhaust gas respectively; the magnetic separation system is used to process crushed materials to The finished scrap and broken tailings are obtained respectively; the dust collection system is used to treat the dust-containing exhaust gas; the distribution system is used to send the finished scrap to the finished scrap storage area; the non-ferrous sorting system is used to gradually sort out the magnetic materials, dust, iron filings , bulk scrap, copper and aluminum, plastic and stainless steel. The utility model realizes on-line crushing and comprehensive recovery of various scrap steels, improves the working environment, increases the automation degree of the production line, and has high production efficiency.

Description

Scrap online crushing and comprehensive recycling system

technical field

The utility model relates to the technical field of comprehensive recovery of scrap steel, in particular to a comprehensive recovery system for on-line crushing of scrap steel.

Background technique

Scrap steel is an important secondary resource for steel production. With the passage of time, my country's scrap steel accounts for an increasing proportion of steel raw materials. The sources of scrap steel are complex, including a large amount of waste plastics, waste rubber, and waste non-ferrous metals, which need to be crushed and sorted before they can be recycled. At the same time, the valuable substances in the raw materials can be comprehensively recovered after crushing and sorting.

At present, the domestic scrap steel crushing production line adopts the process of steel grabbing machine feeding → crusher crushing → magnetic separator separation. After the tailings are stored, they are sorted by a non-ferrous sorting system.

The existing technology has the following problems:

(1) The pre-crusher operates offline, the system operation efficiency is low, the material is frequently transported back and forth, and the workshop dust is large.

(2) After the crushed material, the dust is large during the reverse transportation process, and the working environment is poor.

(3) The non-ferrous sorting system adopts off-line operation, the automation degree of feeding and sorting is low, and the workshop environment is poor.

(4) The crushed material adopts rotating belt cloth, the cloth range is limited, and the blanking drop is large, there are potential safety hazards in the blanking process, and the environmental effect is poor.

(5) Auxiliary systems such as circulating water cannot be effectively integrated, the equipment is scattered, and the degree of automation is low.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, one purpose of the present utility model is to propose a comprehensive recycling system for scrap steel online crushing, which integrates pre-crushing system, crushing system, dust collection system, magnetic separation system, cloth system, non-ferrous separation system and circulating cooling water system online. And spray system to achieve online crushing and comprehensive recovery of various types of scrap steel, improve the on-site operating environment, improve the automation of the production line, reduce the labor level of workers, and improve production efficiency.

The comprehensive recovery system for online scrap steel crushing according to the embodiment of the present invention includes a pre-crushing system, crushing system, dust collection system, magnetic separation system, distribution system, non-ferrous separation system, circulating cooling water system and spraying system integrated online through a control system. shower system, which,

The pre-crushing system is used for pre-crushing the incoming scrap steel baling blocks to obtain pre-crushing materials, and feeding the pre-crushing materials and bulk materials into the crushing system;

The crushing system is used to crush pre-crushed materials and bulk materials to obtain crushed materials and dust-containing exhaust gas respectively, and send the crushed materials into the magnetic separation system, while the dust-containing exhaust gas is in the negative of the dust collection system. is sucked into the dust collection system under the action of pressure;

The magnetic separation system is used for processing crushed materials to obtain finished steel scrap and crushed tailings, respectively, and sends the finished steel scrap into the distributing system, and sends the crushed tailings into the non-ferrous sorting system;

The dust collection system is used to treat the dust-containing exhaust gas, so as to gradually obtain flocs, large-particle light substances, dust and clean exhaust gas respectively;

The distributing system is used to deliver the finished scrap steel to the finished scrap steel stacking area;

The non-ferrous sorting system is used for processing broken tailings to gradually obtain magnetic materials, dust, iron filings, bulk waste, copper and aluminum, plastic and stainless steel;

The circulating cooling water system is used to supply water to the production line of the scrap steel online crushing and comprehensive recovery system;

The spray system is used to spray and cool the crushed materials in the crushing system;

The control system is used to control the pre-crushing system, the crushing system, the dust collection system, the magnetic separation system, the distribution system, the colored separation system, the circulating cooling water system and the operation of the sprinkler system.

The comprehensive recovery system for online scrap steel crushing according to the embodiment of the present invention has the following advantages: first, the pre-crushing system, crushing system, dust collection system, The operation of the magnetic separation system, the distribution system, the non-ferrous separation system, the circulating cooling water system and the spray system, thus forming a complete set of centralized control and highly automated scrap steel online crushing and comprehensive recycling system, with high crushing and sorting efficiency, can be Realize the comprehensive recycling and utilization of different types of scrap steel raw materials; second, the whole process can be controlled online, and each system can be disconnected from independent operation, and the operation is flexible; third, through automatic control, the labor intensity of workers is reduced; third 4. Most of the light substances and dust inhaled from the crushed materials in the crushing system through the dust collection system, the inhaled light substances and dust enter the dust collection system in the form of dust-containing exhaust gas. The flocculent light substances such as large particles such as sponges/waste plastics, large particles of dust and small particles of dust are separated from the exhaust gas, and finally a clean exhaust gas is discharged to the dust collection system. As a result, the dust can be avoided during the transportation of the crushed materials, the workshop operating environment is improved, and the environmental protection effect is good. The quality of scrap steel; Fifth, the finished scrap steel is recovered from the crushed materials by the magnetic separation system, which can be sold and reused; Materials such as block scrap, copper and aluminum, plastic and stainless steel can be sold and reused.

According to an embodiment of the present invention, the pre-crushing system includes a pre-crushing machine, a steel grabber and a feeding conveyor; wherein,

The control system is respectively connected with the pre-crusher and the feeding conveyor to control the operation of the pre-crusher and the feeding conveyor;

The pre-crusher is used for pre-crushing incoming scrap steel baling blocks to obtain pre-crushed materials and discharge the pre-crushed materials to the pre-crushed materials and bulk material stacking areas;

The steel grabber is located near the pre-crushed material and bulk material stacking area, and is used for transferring the pre-crushed material and bulk material to the feeding conveyor;

The feeding conveyor is used for conveying pre-crushed materials and bulk materials to the crushing system.

According to a further embodiment of the present invention, the steel grabber is a diesel power steel grabber, an electric power steel grabber or a diesel/electric hybrid power grabber; wherein, when the steel grabber is the electric power grabber When the steel machine or the diesel/electric hybrid power steel grabber is used, the power-taking method of the steel grabber adopts moving from the trolley wire, and the trolley line is suspended and arranged in the walking area of the steel grabber. .

According to an embodiment of the present invention, the crushing system includes a feeding roller compacting device, a scrap steel crusher, a fluidized vibrating conveyor, a blower and a first belt conveyor; wherein,

The control system is respectively connected with the feed rolling roller equipment, the scrap steel crusher, the fluidized vibrating conveyor, the blower and the first belt conveyor to control the feed rolling the operation of the roller equipment, the scrap crusher, the fluidized vibrating conveyor, the blower and the first belt conveyor;

The feed rolling drum equipment is used to receive the pre-crushed materials and bulk materials sent by the pre-crushing system, and then flatten the pre-crushed materials and the bulk materials and feed them into the scrap crusher;

The scrap crusher is used to crush the flattened pre-crushed materials and bulk materials to obtain crushed materials and discharge the crushed materials into the fluidized vibrating conveyor in a closed manner; the scrap crusher also It is airtightly connected with the dust collection system, so that the dust-containing exhaust gas enters the dust collection system during the crushing process;

The fluidized vibrating conveyor is also connected to the blower and the dust collection system respectively, and is used for fluidizing the crushed materials while conveying them in vibration, so as to obtain clean crushed materials and dust-containing exhaust gas respectively;

The blower is used to supply air to the fluidized vibrating conveyor, so that the light substances in the crushed materials in the fluidized vibrating conveyor are fluidized and the exhaust gas enters the dust collection system;

The first belt conveyor is used for receiving clean crushed material from the fluidized vibrating conveyor and conveying the clean crushed material into the magnetic separation system.

According to a further embodiment of the present invention, the dust collection system includes a floc separation chamber, a cyclone cleaner, a bag filter, an induced draft fan, an exhaust cylinder and a closed belt conveyor; wherein,

The control system is respectively connected with the floc separation chamber, the cyclone cleaner, the bag filter, the induced draft fan and the closed belt conveyor to control the floc separation chamber, the The operation of the cyclone cleaner, the bag filter, the induced draft fan and the closed belt conveyor;

The floc separation chamber is closed and connected with the crusher and the fluidized vibrating conveyor, respectively, and is used for separating the flocs from the dust-containing exhaust gas from the crusher and the fluidized vibrating conveyor. Large particles of light substances, and obtain the first-level pretreatment of dusty exhaust gas;

The cyclone cleaner is located downstream of the floc separation chamber in the flow direction of the dust collection process and is connected to the floc separation chamber, and is used to separate large particles of dust in the first-stage pretreatment dust-containing exhaust gas, and obtain Secondary pretreatment of dusty exhaust gas;

The bag filter is located downstream of the cyclone cleaner in the flow direction of the dust collection process and is connected to the cyclone cleaner, and is used for separating small particles of dust in the secondary pretreatment dust-containing exhaust gas, and obtaining clean gas;

The induced draft fan is located downstream of the bag filter in the flow direction of the dust collection process, and is connected to the bag filter, so as to form a negative pressure in the dust collection system, so as to reduce the pressure of the crusher. The fluidized vibrating conveyor draws air, and at the same time is used to deliver clean exhaust gas to the exhaust pipe;

The closed belt conveyor is arranged below the floc separation chamber and the cyclone, and is used for receiving large particles of flocs and light substances discharged from the floc separation chamber and discharging from the cyclone. The large particle dust is transported to the large particle light material storage area.

According to a further embodiment of the present invention, the magnetic separation system includes a vibrating feeder and a drum magnetic separator; wherein,

The control system is respectively connected with the vibrating feeder and the drum magnetic separator to control the operation of the vibrating feeder and the drum magnetic separator;

The vibrating feeder is used for receiving the clean crushed materials sent by the first belt conveyor, and feeding the clean crushed materials into the drum magnetic separator;

The drum magnetic separator is used for magnetic separation of clean crushed materials to obtain finished scrap steel and crushed tailings respectively, wherein the finished scraps automatically enter the distribution system, and the crushed tailings automatically enter the non-ferrous sorting. system.

According to a further embodiment of the present invention, the magnetic separation system further includes a second belt conveyor, a reversible belt conveyor and a crushing tail hopper; wherein,

the control system is respectively connected with the second belt conveyor and the reversible belt conveyor to control the operation of the second belt conveyor and the reversible belt conveyor;

The second belt conveyor is inclined, one end of the second belt conveyor is adjacent to the drum magnetic separator, the other end of the second belt conveyor is adjacent to the reversible belt conveyor, and the first One end of the second belt conveyor is lower than the other end of the second belt conveyor;

The reversible belt conveyor is arranged horizontally and is located below the other end of the second belt conveyor, the crushed tail hopper is provided below one end of the reversible belt conveyor, and the other end of the reversible belt conveyor is disposed. Below one end is a temporary storage yard for broken tailings.

According to a further embodiment of the present invention, the distributing system includes a third belt conveyor, an unloading trolley and a throwing belt; wherein,

The control system is respectively connected with the third belt conveyor, the unloading trolley and the throwing belt to control the operation of the third belt conveyor, the unloading trolley and the throwing belt ;

One end of the third belt conveyor is adjacent to the magnetic separation system, and the other end is adjacent to the finished scrap steel yard; the unloading trolley is located in the third belt conveyor, and the third belt conveyor is used for receiving the The finished scrap steel discharged from the magnetic separation system and the finished scrap steel are transported to the unloading trolley;

The throwing belt is arranged horizontally, and is located below the unloading trolley and moves together with the unloading trolley; the unloading trolley is used to transport the finished scrap steel to the throwing belt;

Below the throwing belt is a finished steel scrap stacking area; the throwing belt is used for throwing the finished scrap steel in the finished steel stacking area.

According to an embodiment of the present invention, the non-ferrous sorting system includes a plate ore feeder, a fourth belt conveyor, an iron remover, a screening device, a screw conveyor, a fifth belt conveyor, and a sixth belt conveyor , eddy current separator and non-ferrous metal separator; among them,

The control system is respectively connected with the slab ore feeder, the fourth belt conveyor, the iron remover, the screening equipment, the screw conveyor, the fifth belt conveyor, the Six belt conveyors, the eddy current separator and the non-ferrous metal separator are connected to control the plate ore feeder, the fourth belt conveyor, the iron remover, the screening Operation of the equipment, the screw conveyor, the fifth belt conveyor, the sixth belt conveyor, the eddy current sorter and the non-ferrous metal sorter;

The board ore feeder is used to receive the crushed tailings conveyed from the magnetic separation system and continuously and quantitatively transfer the crushed tailings to the fourth belt conveyor; the motor of the board ore feeder is variable frequency speed regulation ;

The fourth belt conveyor is used for conveying the crushed tailings sent from the board ore feeder;

The iron remover is arranged above the fourth belt conveyor, and the iron remover is used to absorb the magnetic material in the crushed tail material on the fourth belt conveyor, so as to obtain the magnetic material and the primary treatment crushed tail respectively. material;

The screening equipment is used to receive the primary treatment crushed tailings sent by the fourth belt conveyor, and screen the primary treatment crushed tailings to obtain dust, bulk waste and secondary treatment respectively. broken tailings;

The screw conveyor is used for receiving the dust discharged from the screening equipment and conveying the dust to the dust stacking area;

The fifth belt conveyor is used to receive the bulk waste discharged from the screening equipment and transport the bulk waste to the bulk waste stacking area;

The sixth belt conveyor is used to receive the secondary treatment crushed tailings discharged from the screening equipment, and the drum at the output end of the sixth belt conveyor is a permanent magnet drum; the permanent magnet drum is used for secondary treatment. When the processing broken tailings pass through the output end of the sixth belt conveyor, the iron filings in the secondary processing crushed tailings are absorbed to obtain iron filings and tertiary processing crushed tailings respectively;

The eddy current separator is used to receive the tertiary treatment crushed tailings from the sixth belt conveyor, and perform eddy current sorting on the tertiary treatment crushed tailings to obtain copper, aluminum and quaternary treatment crushed tailings, respectively. tailings;

The non-ferrous metal sorting machine is used for receiving the fourth-stage treatment crushed tailings discharged from the eddy current sorting machine, and sorting the fourth-stage processing crushed tailings to obtain plastic/rubber and stainless steel, respectively.

According to an embodiment of the present invention, it further includes a monitoring system, the monitoring system is used to monitor the pre-crushing system, the crushing system, the dust collection system, the magnetic separation system, the distribution system, the The operation of the colored sorting system, the circulating cooling water system and the spraying system.

Additional aspects and advantages of the invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

FIG. 1 is a schematic structural diagram of a comprehensive recovery system for online scrap steel crushing according to an embodiment of the present invention.

Reference number:

Scrap online crushing comprehensive recovery system 1000

Pre-crushing system 1

Pre-crusher 101 Steel Grabber 102 Feeding Conveyor 103

crushing system 2

Feed Rolling Roller Equipment 201 Scrap Crusher 202 Fluidized Vibrating Conveyor 203

Blower 204 First Belt Conveyor 205

Dust collection system 3

Floc Separation Chamber 301 Cyclone Cleaner 302 Bag Filter 303 Induced Fan 304, Exhaust Tube 305

Closed belt conveyor 306

Magnetic Separation System 4

Vibrating Feeder 401 Magnetic Roller Separator 402 Second Belt Conveyor 403

Reversible Belt Conveyor 404 Crushing Tail Hopper 405 Loader 406

Cloth System 5

The third belt conveyor 501 Unloading trolley 502 Throwing belt 503

Color Sorting System 6

Plate ore feeder 601 Fourth belt conveyor 602 Iron remover 603 Screening equipment 604

Screw conveyor 605 Fifth belt conveyor 606 Sixth belt conveyor 607

Permanent magnet drum 6071 Eddy current separator 608 Non-ferrous metal separator 609

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to 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, but should not be construed as a limitation of the present invention.

The following describes a comprehensive recycling system 1000 for online scrap steel crushing according to an embodiment of the present invention with reference to FIG. 1 .

As shown in FIG. 1 , an integrated recycling system 1000 for online scrap steel crushing according to an embodiment of the present invention includes a pre-shredding system 1, a crushing system 2, a dust collection system 3, a magnetic Selection system 4, distribution system 5, colored sorting system 6, circulating cooling water system (not shown in the figure) and spray system (not shown in the figure).

Specifically, the pre-crushing system 1 is used to pre-crumb the incoming scrap steel baled blocks to obtain pre-crushed materials, and send the pre-crushed materials and bulk materials into the crushing system 2 .

Crushing system 2 is used to crush pre-crushed materials and bulk materials to obtain crushed materials and dust-containing exhaust gas respectively, and send the crushed materials to magnetic separation system 4, while dust-containing exhaust gas is under the negative pressure of dust collection system 3. is sucked into the dust collection system 3.

The magnetic separation system 4 is used to process the crushed materials to obtain finished scrap steel and crushed tailings, respectively, and send the finished scraps to the distribution system 5 and the crushed tails to the non-ferrous sorting system 6 .

The dust collection system 3 is used for inhaling the dust-containing exhaust gas of the crushing system 2 and processing the dust-containing exhaust gas, so as to gradually obtain flocs, large-particle light substances, dust and clean exhaust gas respectively. By setting the dust collection system 3, it can prevent the light substances such as sponge, plastic, rubber, dust, etc. from entering the workshop environment when the crushing system 2 crushes the pre-crushed materials and bulk materials, which improves the working environment of the workshop. Particle light materials such as sponge, plastic, rubber, etc. are transported to the large particle light material stacking area, which can be used for sale and recycling; dust can be sold in ton bags for recycling.

The distribution system 5 is used to receive the finished scrap from the magnetic separation system 4 and send the finished scrap to the finished scrap stacking area. Finished scrap can be sold for recycling.

The non-ferrous sorting system 6 is used to process the crushed tailings to gradually obtain magnetic materials, dust, iron filings, large scraps, copper and aluminum, plastics and stainless steel; these sorted materials can also be used for sale and recycling. use.

The circulating cooling water system is used to supply water to the production line of the scrap steel online crushing and comprehensive recovery system 1000 to ensure that the production equipment is not damaged.

The spray system is used to spray and cool the crushed materials in the crushing system 2, so as to reduce the temperature of the crushed materials and avoid damage to the post-process equipment when the high-temperature crushed materials enter the post-process equipment.

The control system is used to control the operation of the pre-crushing system 1, crushing system 2, dust collection system 3, magnetic separation system 4, distribution system 5, non-ferrous separation system 6, circulating cooling water system and spray system, thus forming a complete set of The centralized control and highly automated scrap steel online crushing and comprehensive recycling system 1000 has high crushing and sorting efficiency, and can realize the comprehensive recovery and utilization of different types of scrap steel raw materials.

The comprehensive recycling system 1000 for online crushing of scrap steel according to the embodiment of the present invention has the following advantages: firstly, the control system controls the pre-crushing system 1, crushing system 2, dust collection system 3, magnetic separation system 4, distribution system 5, Non-ferrous sorting system 6, the operation of circulating cooling water system and spray system, thus forming a complete set of centralized control and highly automated scrap steel online crushing comprehensive recovery system 1000, high crushing and sorting efficiency, can realize different types of scrap steel Comprehensive recovery and utilization of raw materials; second, the whole process can be controlled online, and each system can be operated independently, and the operation is flexible; third, through automatic control, the labor intensity of workers is reduced; fourth, through dust collection Most of the light substances and dust sucked in by the system 3 from the crushed materials in the crushing system 2 enter the dust collection system 3 in the form of dust-containing exhaust gas. The flocculent light substances such as large particles such as sponges/waste plastics, large particles of dust, and small particles of dust are separated out, and finally clean exhaust gas is discharged to the dust collection system 3. As a result, the dust can be avoided during the transportation of the crushed materials, the workshop operating environment is improved, and the environmental protection effect is good. The quality of scrap steel; Fifth, the finished scrap steel is recovered from the crushed materials by the magnetic separation system 4, which can be sold and reused; Sixth, the magnetic material, dust, iron filings are separated from the broken tailings by the non-ferrous separation system 6 , bulk waste, copper and aluminum, plastic and stainless steel and other materials can be sold and reused.

According to an embodiment of the present invention, the pre-crushing system 1 includes a pre-crushing machine 101, a steel grabbing machine 102 and a feeding conveyor 103;

Wherein, the control system is respectively connected with the pre-crusher 101 and the feeding conveyor 103 to control the operation of the pre-crusher 101 and the feeding conveyor 103;

The pre-crusher 101 is used for pre-crushing the incoming scrap steel baling blocks to obtain pre-crushed materials and discharge the pre-crushed materials to the pre-crushed materials and bulk material stacking areas;

The steel grabber 102 is located near the pre-crushed material and bulk material stacking area, and is used to transfer the pre-crushed material and bulk material to the feeding conveyor 103; the feeding conveyor 103 is used to transport the pre-crushed material and bulk material to the crusher System 2.

It can be understood that by controlling the pre-crusher 101 and the feeding conveyor 103 respectively by the control system, the operation efficiency of the pre-crushing system 1 is improved, and the degree of automation is high, which reduces the labor intensity of workers. In addition, pre-crushing the incoming scrap steel baling block by the pre-crusher 101 is beneficial to the crushing of the crusher in the subsequent crushing system 2 and improves the crushing efficiency of the crusher in the crushing system 2; Frequent reshipping reduces workshop dust.

It should be noted that, in this embodiment, the pre-crusher 101 is a double-shaft shearing type crusher, which is mainly used for tearing the baling block of incoming scrap steel, which is beneficial to the crushing of the subsequent crusher. One or more pre-shredders 101 can be configured according to the quantity of scrap steel incoming baling blocks. For example, a plurality of pre-crusher 101 can be used in a centralized arrangement for centralized feeding, and at the same time, a reversible conveyor can collect the pre-crushed materials and transfer them to the feeding conveyor 103 or to the pre-crushed material and bulk material stacking area. . During production, on-line operation (that is, the pre-crushed material is directly sent to the crushing system 2) or offline operation (that is, the pre-crushed material is sent to the pre-crushed material and bulk material stacking area) can be used according to actual needs.

In this embodiment, the feeding conveyor 103 adopts a slat conveyor, a chain plate conveyor or a crawler conveyor, the driving device of the feeding conveyor 103 adopts a frequency conversion motor, and the width of the conveyor belt is between 1200-2000 mm. The feeding conveyor 103 is provided with a horizontal section at one end close to the pre-crushing system 1. The length of the horizontal section is between 3500 mm and 6000 mm. There is an upper hopper above the horizontal section (the original bottom is a straight section), and the size of the feeding port of the upper hopper is about 3500 mm. ×2500mm, height about 2000mm. During production, pre-crushed materials and bulk materials enter the horizontal section of the loading conveyor 103 (chain plate conveyor) from the upper hopper through the steel grabber 102 . In order to prevent the material from spilling, baffles are set on both sides of the feeding conveyor 103, and the height of the baffles is about 1200mm.

In other embodiments, the pre-crushed materials and bulk materials discharged from the pre-crusher 101 may not be transported to the feeding conveyor 103 through the steel grabber 102, but may be directly transported to the feeding conveyor 103 through the belt conveyor.

According to a further embodiment of the present invention, the steel grabber 102 is a diesel power steel grabber 102 , an electric power steel grabber 102 or a diesel/electric hybrid power steel grabber 102 . It can be understood that the steel grabbing machine 102 can be selected according to the actual situation.

Wherein, when the steel grabber 102 is an electric power steel grabber 102 or a diesel/electric hybrid power steel grabber 102, the steel grabber 102 is powered by moving from the trolley line, and the trolley line is suspended in the air. The walking area of the steel grabber 102 . Specifically, the trolley line can be supported by a plant column or by erecting a bracket, the cable of the steel grabber 102 takes electricity from the trolley line, and the part of the cable of the steel grabber 102 in contact with the trolley line can move on the trolley line and The electrical contact state is always maintained, so as to realize the mobile power taking mode of the electric power steel grabber 102 or the hybrid power steel grabber 102. The working range of the steel grabbing machine 102 is expanded, making the working range of the steel grabbing machine 102 more flexible, avoiding plugging and unplugging the power supply during the walking process of the steel grabbing machine 102, and improving the operation efficiency. At the same time, one trolley line can supply a plurality of electric power steel grabbers 102 or the movement of the hybrid power steel grabber 102 is to take electricity, thereby also improving the working efficiency.

According to an embodiment of the present invention, the crushing system 2 includes a feed rolling roller device 201, a scrap crusher 202, a fluidized vibration conveyor 203, a blower 204 and a first belt conveyor 205; wherein,

The control system is respectively connected with the feeding rolling roller equipment 201, the scrap crusher 202, the fluidized vibrating conveyor 203, the blower 204 and the first belt conveyor 205 to control the feeding rolling roller equipment 201, the scrap crusher 202, The operation of the fluidized vibrating conveyor 203, the blower 204 and the first belt conveyor 205;

The feed rolling roller equipment 201 is used to receive the pre-crushed materials and bulk materials sent by the pre-crushing system 1, and to flatten the pre-crushed materials and the bulk materials and send them to the scrap crusher 202;

The scrap crusher 202 is used to crush the flattened pre-crushed materials and bulk materials to obtain crushed materials and discharge the crushed materials to the fluidized vibrating conveyor 203 in a closed manner; the scrap crusher 202 also works with dust collectors. The system 3 is airtightly connected, so that the dust-laden exhaust gas in the crushing process enters the dust collection system 3;

The fluidized vibrating conveyor 203 is also connected to the blower 204 and the dust collection system 3 respectively, and is used to fluidize the crushed materials while conveying them with vibration, so as to obtain clean crushed materials and dust-containing exhaust gas respectively;

The blower 204 is used to supply air to the fluidized vibration conveyor 203, so that the light substances in the crushed materials in the fluidized vibration conveyor 203 are fluidized and enter the dust collection system 3 with the exhaust gas;

The first belt conveyor 205 is used for receiving clean crushed materials from the fluidized vibrating conveyor 203 and delivering the clean crushed materials to the magnetic separation system 4 .

It can be understood that by controlling the operation of the feed rolling roller equipment 201, the scrap crusher 202, the fluidized vibration conveyor 203, the blower 204 and the first belt conveyor 205, the operation efficiency of the crushing system 2 is improved, And the high degree of automation reduces the labor intensity of workers. In addition, through the feeding rolling roller, the pre-crushed materials and bulk materials can be flattened and fed into the scrap crusher 202 evenly and stably. At the same time, the feeding amount can be adjusted according to the situation of the scrap crusher 202; The vibrating conveyor 203 and the blower 204 can transport the crushed materials from the scrap crusher 202 and effectively separate the light and heavy materials in the crushed materials. The light materials such as sponge, plastic, rubber and dust are fluidized to contain dust exhaust gas In the form of dust collection system 3, heavy substances enter the first belt conveyor 205, and are transported to the magnetic separation system 4 through the first belt conveyor 205, thus, on the one hand, the on-site working environment is greatly improved, and on the other hand On the one hand, light substances such as sponges and plastics are avoided to block the subsequent magnetic separation system 4 , so as to ensure the smooth operation of the magnetic separation system 4 and improve the separation efficiency of the magnetic separation system 4 .

It should be noted that, in this embodiment, the feeding rolling roller equipment 201 adopts a double roller rolling method, the driving method is hydraulic drive, and the distance between the up and down movement of the rollers is between 1000 and 2000 mm.

According to a further embodiment of the present invention, the dust collection system 3 includes a floc separation chamber 301, a cyclone cleaner 302, a bag filter 303, an induced draft fan 304, an exhaust cylinder 305 and a closed belt conveyor 306; wherein,

The control system is respectively connected with the floc separation chamber 301, the cyclone cleaner 302, the bag filter 303, the induced draft fan 304 and the closed belt conveyor 306 to control the floc separation chamber 301, the cyclone cleaner 302, the bag filter 303 , the operation of the induced draft fan 304 and the closed belt conveyor 306;

The floc separation chamber 301 is sealed and connected to the crusher and the fluidized vibration conveyor 203 respectively, and is used to separate the flocs, large particles and light substances such as waste plastics from the dust-containing exhaust gas from the crusher and the fluidized vibration conveyor 203. / waste sponge, and obtain first-level pretreatment dust-laden exhaust gas;

The cyclone cleaner 302 is located downstream of the floc separation chamber 301 in the flow direction of the dust collection process and is connected to the floc separation chamber 301, and is used to separate the large particles of dust in the dust-containing exhaust gas of the primary pretreatment, and obtain the secondary pretreatment. Treatment of dusty exhaust gas;

The bag filter 303 is located downstream of the cyclone cleaner 302 in the flow direction of the dust collection process and is connected to the cyclone cleaner 302, and is used to separate small particles of dust in the secondary pretreatment dust-containing exhaust gas, and obtain clean gas;

The induced draft fan 304 is located downstream of the bag filter 303 in the flow direction of the dust collection process, and is connected to the bag filter 303 to form a negative pressure in the dust collection system 3 to extract air from the crusher and the fluidized vibrating conveyor 203 , and at the same time is used to deliver clean exhaust gas to the exhaust pipe 305;

The airtight belt conveyor 306 is arranged below the floc separation chamber 301 and the cyclone cleaner 302, and is used to receive the large particles of light matter discharged from the floc separation chamber 301 and the large particles of dust discharged from the cyclone cleaner 302. It is transported to the storage area of large particles and light materials.

The working process of the dust collection system 3 is as follows: by starting the induced draft fan 304, the dust collection system 3 is in a negative pressure environment, and the crusher and the fluidized vibration conveyor 203 can be exhausted. The dust-containing exhaust gas of the machine 203 can enter the floc separation chamber 301, and the flocs such as waste plastic, waste sponge, waste rubber, etc. in the dust-containing exhaust gas are filtered out through the floc separation chamber 301, and the primary pretreatment containing Dust tail gas, so as to avoid flocs blocking the post-process dust collection equipment and causing the post-process dust collection equipment to be unsmooth. The large particles of dust in the dust-laden exhaust gas are filtered out to obtain the secondary pre-treatment dust-laden exhaust gas, and the second-stage pre-treatment dust-laden exhaust gas enters the bag filter 303, and the dust-laden exhaust gas in the secondary pre-treatment dust-laden exhaust gas is removed by the bag filter 303. The small particles of dust are filtered out and clean exhaust gas is obtained. The clean exhaust gas enters the induced draft fan 304 and then is discharged through the exhaust pipe 305, which realizes the dust collection of the dust-containing exhaust gas and has a good dust collection effect, and also realizes the removal of floc and dust. Effective separation; the closed belt conveyor 306 can automatically transport flocs and large particles of dust to the storage area of large particles and light materials in a closed manner, which greatly improves the on-site operating environment; flocs, large particles of dust, small particles of dust, etc. After recycling, it can be sold and reused, so as to save resources and improve income; control the operation of floc separation chamber 301, cyclone dust collector, bag dust collector 303, induced draft fan 304 and airtight tape conveying through the PLC control system, reducing the work intensity of workers. In summary, the dust collection system 3 ensures the on-site operation environment, and at the same time, the flocs, large particles of dust and small particles of dust can be gradually recovered and reused. The structure is simple, the floor space is small, and the cost is effectively reduced.

According to a further embodiment of the present invention, the magnetic separation system 4 includes a vibrating feeder 401 and a drum magnetic separator 402; wherein,

The control system is respectively connected with the vibrating feeder 401 and the drum magnetic separator 402 to control the operation of the vibrating feeder 401 and the drum magnetic separator 402;

The vibrating feeder 401 is used to receive the clean crushed materials sent by the first belt conveyor 205, and feed the clean crushed materials into the drum magnetic separator 402;

The drum magnetic separator 402 is used for magnetic separation of clean crushed materials to obtain finished scrap steel and crushed tailings, wherein the finished scraps automatically enter the distribution system 5 , and the crushed tails automatically enter the non-ferrous sorting system 6 .

It can be understood that the control system controls the operation of the vibrating feeder 401 and the drum magnetic separator 402 , so that the magnetic separation system 4 operates automatically and reduces the work intensity of the workers. The material is fed by the vibrating feeder 401, and the feeding is uniform, which can prevent the material from being blocked in the drum magnetic separator 402, and at the same time, improve the sorting efficiency of the drum magnetic separator 402.

Optionally, the drum magnetic separator 402 may adopt a magnetic separator with a permanent magnet structure or an electromagnetic structure.

According to a further embodiment of the present invention, the magnetic separation system 4 further includes a second belt conveyor 403, a reversible belt conveyor 404 and a crushing tail hopper 405; wherein,

The control system is respectively connected with the second belt conveyor 403 and the reversible belt conveyor 404 to control the operation of the second belt conveyor 403 and the reversible belt conveyor 404;

The second belt conveyor 403 is inclined, one end of the second belt conveyor 403 is adjacent to the drum magnetic separator 402, the other end of the second belt conveyor 403 is adjacent to the reversible belt conveyor 404, and one end of the second belt conveyor 403 lower than the other end of the second belt conveyor 403;

The reversible belt conveyor 404 is arranged horizontally and is located below the other end of the second belt conveyor 403, a crushing tail hopper 405 is provided below one end of the reversible belt conveyor 404, and the other end of the reversible belt conveyor 404 is crushed. Temporary storage yard for tailings.

It can be understood that the control system controls the operation of the second belt conveyor 403 and the reversible belt conveyor 404, which improves the automation of conveying the crushed tails and reduces the work intensity of workers. By arranging the second belt conveyor 403, it is convenient to transport the crushed tailings. By setting the reversible belt conveyor 404, the crushed tails can be transported to the crushed tails hopper 405 or the temporary storage yard of the crushed tails according to the actual situation. For example, when the colored sorting system 6 fails, the crushed tails can be It is transported to the temporary storage yard of the crushed tailings, which is beneficial to ensure the normal and smooth operation of the scrap steel online crushing and comprehensive recovery system 1000. By setting the hopper, the crushed tailings can be buffered, and the crushed tailings can be discharged to the non-ferrous sorting system 6 , for example, on the plate ore feeder 601 of the non-ferrous sorting system 6 .

Preferably, the crushed tailings hopper is a 405 carbon steel silo, the volume of which can meet the 2-4h non-ferrous sorting and storage, and a ventilation hood is provided above the hopper.

Preferably, the magnetic separation system 4 further includes a loader 406, and the loader 406 can transport the crushed tails to other places according to actual conditions.

According to a further embodiment of the present invention, the distributing system 5 includes a third belt conveyor 501, an unloading trolley 502 and a throwing belt 503; wherein,

The control system is respectively connected with the third belt conveyor 501, the unloading trolley 502 and the throwing belt 503 to control the operation of the third belt conveyor 501, the unloading trolley 502 and the throwing belt 503;

One end of the third belt conveyor 501 is adjacent to the magnetic separation system 4, and the other end is adjacent to the finished scrap steel yard; the unloading trolley 502 is located in the third belt conveyor 501, and the third belt conveyor 501 is used to receive the magnetic separation system 4 The finished scrap steel is discharged and transported to the unloading trolley 502;

The throwing belt 503 is set horizontally, and is located below the unloading trolley 502 and moves together with the unloading trolley 502; the unloading trolley 502 is used to transport the finished scrap to the throwing belt 503;

Below the throwing belt 503 is the finished steel scrap stacking area; the throwing belt 503 is used for throwing the finished steel scrap in the finished steel stacking area.

It can be understood that the throwing belt 503 is located below the unloading trolley 502, and moves along the direction of the third belt conveyor 501 along with the unloading trolley 502, and can also move along its own length direction. Through the arrangement of the third belt conveyor 501, the unloading trolley 502 and the throwing belt 503, the blanking drop of the finished scrap steel is greatly reduced, the potential safety hazard in the blanking process is reduced, and the on-site operating environment is improved. The finished steel scrap can be evenly distributed in the stockyard of the finished product stacking area. By controlling the operation of the third belt conveyor 501, the unloading trolley 502 and the throwing belt 503 by the control system, the automation of the distribution system 5 can be improved, the labor intensity of workers can be reduced, and the distribution efficiency can be high.

Optionally, the throwing belt 503 has a width of 800-1000 mm, a belt speed of 2.0-3.0 m/s, and a length of 3000-5000 mm, which is used for evenly distributing the finished scrap steel in the stock yard of the finished product stacking area.

According to an embodiment of the present utility model, the non-ferrous sorting system 6 includes a plate ore feeder 601, a fourth belt conveyor 602, an iron remover 603, a screening device 604, a screw conveyor 605, a fifth belt conveyor 606, The sixth belt conveyor 607, eddy current sorting machine 608 and non-ferrous metal sorting machine 609; among them,

The control system is respectively connected with the plate ore feeder 601, the fourth belt conveyor 602, the iron remover 603, the screening equipment 604, the screw conveyor 605, the fifth belt conveyor 606, the sixth belt conveyor 607, the eddy current sorting The machine 608 is connected to the non-ferrous metal separator 609 to control the plate ore feeder 601, the fourth belt conveyor 602, the iron remover 603, the screening equipment 604, the screw conveyor 605, the fifth belt conveyor 606, the first Operation of six belt conveyors 607, eddy current separators 608 and non-ferrous metal separators 609;

The board ore feeder 601 is used to receive the crushed tailings conveyed from the magnetic separation system 4 and continuously and quantitatively transfer the crushed tailings to the fourth belt conveyor 602; the motor of the board ore feeder 601 is controlled by frequency conversion;

The fourth belt conveyor 602 is used to transport the crushed tailings sent from the board ore feeder 601;

The iron remover 603 is arranged above the fourth belt conveyor 602, and the iron remover 603 is used to absorb the magnetic material in the crushed tailings on the fourth belt conveyor 602, so as to obtain the magnetic material and the primary treatment crushed tailings, respectively, The magnetic material enters the magnetic material stacking area, and the crushed tailings after primary treatment enter the screening equipment 604;

The screening equipment 604 is used to receive the primary treatment crushed tails sent by the fourth belt conveyor 602, and screen the primary treatment crushed tails to obtain dust, bulk waste and secondary treatment crushed tails respectively. material;

The screw conveyor 605 is used to receive the dust discharged from the screening equipment 604 and transport the dust to the dust storage area;

The fifth belt conveyor 606 is used to receive the bulk waste discharged from the screening device 604 and transport the bulk waste to the bulk waste stacking area;

The sixth belt conveyor 607 is used to receive the secondary treatment crushed tails discharged from the screening equipment 604, and the drum at the output end of the sixth belt conveyor 607 is a permanent magnet drum 6071; the permanent magnet drum 6071 is used for secondary treatment of the crushed tails When the material passes through the output end of the sixth belt conveyor 607, the iron filings in the secondary treatment crushed tailings are absorbed to obtain iron filings and the tertiary treatment crushed tailings, respectively. When the sixth belt conveyor 607 continues to operate, the iron filings are Going to the bottom of the sixth belt conveyor 607, away from the permanent magnet drum 6071 and no longer being sucked by the permanent magnet drum 6071 and falling into the iron filing area, the tertiary treatment crushed tailings enter the eddy current separator 608 ;

The eddy current separator 608 is used to receive the tertiary treatment crushed tailings from the sixth belt conveyor 607, and perform eddy current sorting on the tertiary treatment crushed tailings to obtain copper, aluminum and quaternary treatment crushed tails, respectively , among them, copper and aluminum enter the copper and aluminum stacking area, and the four-stage treatment crushed tailings enter the non-ferrous metal sorting machine 609;

The non-ferrous metal sorting machine 609 is used to receive the fourth-stage treatment crushed tailings discharged from the eddy current sorting machine 608, and to sort the fourth-stage treatment crushed tailings to obtain plastic/rubber and stainless steel, respectively.

It can be understood that the board ore feeder 601, the fourth belt conveyor 602, the iron remover 603, the screening equipment 604, the screw conveyor 605, the fifth belt conveyor 606, and the sixth belt conveyor 607 are controlled by the control system. The operation of the eddy current sorting machine 608 and the non-ferrous metal sorting machine 609 can improve the degree of automation of the non-ferrous sorting system 6, reduce the labor intensity of workers, and have high sorting efficiency. By arranging the iron remover 603 above the fourth belt conveyor 602, the magnetic materials in the crushed tailings, including the weak magnetic materials, can be absorbed, thereby obtaining the magnetic materials and the primary-treated crushed tailings, wherein the magnetic materials can be recycled and reused . Through the screening device 604, the primary treatment crushed tailings can be sorted into dust, bulk waste and secondary treatment crushed tailings, wherein the dust can be transported to the dust stacking area by screw conveying, which is convenient for subsequent delivery to the landfill landfill; bulk materials are transported to the bulk material stacking area through the fifth belt conveyor 606, and the bulk materials can be returned to the crusher for further crushing; one processing broken tail material is transported by the sixth belt conveyor and is The belt conveyor 607 separates and obtains iron filings and tertiary treatment crushed tailings, wherein the iron filings enter the iron filing area, and the iron filings can be recycled and reused. By setting the eddy current separator 608, the tertiary treatment crushed tailings can be sorted to obtain copper and aluminum and the fourth-stage treatment crushed tailings, wherein the copper and aluminum enter the copper and aluminum stacking area, and the copper and aluminum can be recycled and reused, and can be used as a raw material. Priced products for sale. By setting the non-ferrous metal sorting machine 609, the four-stage treatment crushed tailings can be sorted to obtain plastic/rubber and stainless steel. The stainless steel enters the stainless steel stacking area, and the stainless steel can be recycled and reused, and can be sold as a valuable product. The plastic/rubber enters the plastic/rubber stacking area, and the plastic/rubber can be used to make fuel pellets or use a pyrolysis furnace to pyrolyze to recover oil and gas products. To sum up, the non-ferrous sorting system 6 adopts online operation, and has a high degree of automation in feeding and sorting, which improves the on-site environment.

According to an embodiment of the present invention, it also includes a monitoring system, which is used to monitor the pre-crushing system 1, crushing system 2, dust collection system 3, magnetic separation system 4, distribution system 5, non-ferrous separation system 6, circulating cooling The operation of water system and sprinkler system ensures smooth production.

According to a further embodiment of the present invention, the monitoring system includes a first infrared spherical camera set above the pre-crusher 101 and a second infrared spherical camera set above the feed rolling roller device 201 for guiding pre-crushing and crushing operations .

According to an embodiment of the present invention, the circulating cooling water system includes a cooling tower, a circulating water pump, a shut-off valve, a pressure monitoring unit and a temperature monitoring unit. The circulating cooling water system can not only supply water to the production line of the scrap steel online crushing and comprehensive recovery system 1000, but also supply water to other equipment (such as air compressors, etc.) in the plant area. The circulating water pump is usually equipped with 3 sets, the water volume of a single set is between 30 and 150t/h, 2 sets of power frequency (1 for use and 1 for standby), and 1 set of frequency conversion. The temperature difference between the variable frequency motor of the variable frequency circulating water pump and the main pipe of the supply and return water is interlocked by the control system, and the temperature difference of the circulating water is controlled to be between 6℃±1℃. The shut-off valve is interlocked with the temperature of the heat-exchanging medium of each water system through the control system. When the temperature of the heat-exchanging medium exceeds the set value, the shut-off valve is automatically opened for heat exchange, and when the temperature is lower than the set value, the shut-off valve is automatically closed to save production. energy consumption. A temperature monitoring unit is installed on the inlet and outlet water pipes of each water unit, and an alarm is issued when the inlet and outlet water temperature exceeds 8 °C.

According to an embodiment of the present invention, the spray system includes a water tank, a variable frequency water pump and a spray head. The water tank is a carbon steel airtight water tank with a water inlet, a water outlet, an overflow outlet and a sewage outlet. The volume of the water tank is 3~8m. ³ Frequency conversion pumps are used for 1 backup, the pressure head is 0.3~0.4Mpa, and the flow rate is 0~10t/h. During production, the spray water flow is controlled according to the temperature of the dust-laden exhaust gas. The nozzles are located in the casing of the crusher of the crushing system 2, and are evenly arranged with 2 to 3 nozzles with a diameter of 1 mm to 2 mm, which are used to atomize the spray water.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples," or the like, is meant to incorporate the embodiment. A particular feature, structure, material, or characteristic described by an example or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention. Variations, the scope of the present invention is defined by the claims and their equivalents.

Claims (10)

1. An on-line crushing comprehensive recovery system for scrap steel, which is characterized by comprising a pre-crushing system, a dust collecting system, a magnetic separation system, a material distribution system, a colored sorting system, a circulating cooling water system and a spraying system which are integrated on line through a control system, wherein,

the pre-crushing system is used for pre-crushing the scrap steel incoming material packaging blocks to obtain pre-crushed materials, and sending the pre-crushed materials and bulk materials into the crushing system;

the crushing system is used for crushing pre-crushed materials and bulk materials to respectively obtain crushed materials and dust-containing tail gas, the crushed materials are sent to the magnetic separation system, and the dust-containing tail gas is sucked into the dust collection system under the negative pressure action of the dust collection system;

the magnetic separation system is used for processing the crushed materials to respectively obtain finished product scrap steel and crushed tailings, sending the finished product scrap steel into the material distribution system, and sending the crushed tailings into the colored sorting system;

the dust collecting system is used for treating dust-containing tail gas so as to respectively obtain floccule large-particle light substances, dust and clean tail gas step by step;

the distribution system is used for conveying finished product scrap steel to a finished product scrap steel stacking area;

the non-ferrous sorting system is used for processing broken tailings to respectively and gradually obtain magnetic materials, dust, scrap iron, large waste materials, copper and aluminum, plastics and stainless steel;

the circulating cooling water system is used for supplying water to a production line of the waste steel on-line crushing comprehensive recovery system;

the spraying system is used for spraying and cooling the crushed materials in the crushing system;

the control system is used for controlling the operation of the pre-crushing system, the dust collecting system, the magnetic separation system, the material distribution system, the colored sorting system, the circulating cooling water system and the spraying system.

2. The scrap steel online crushing comprehensive recovery system according to claim 1, wherein the pre-crushing system comprises a pre-crusher, a steel grabbing machine and a feeding conveyor; wherein,

the control system is respectively connected with the pre-crusher and the feeding conveyor to control the operation of the pre-crusher and the feeding conveyor;

the pre-crusher is used for pre-crushing the scrap steel incoming material packaging blocks to obtain pre-crushed materials and discharging the pre-crushed materials to a pre-crushed material and bulk material stacking area;

the steel grabbing machine is positioned near the pre-crushing material and bulk material stacking area and used for transferring the pre-crushing material and the bulk material to the feeding conveyor;

the feeding conveyor is used for conveying pre-crushed materials and bulk materials to the crushing system.

3. The comprehensive recovery system for online crushing of steel scrap according to claim 2, wherein the steel grabbing machine is a diesel power steel grabbing machine, an electric power steel grabbing machine or a diesel/electric hybrid steel grabbing machine; when the steel grabbing machine is the electric power steel grabbing machine or the diesel/electric power hybrid steel grabbing machine, the power taking mode of the steel grabbing machine adopts the mode of moving from a sliding contact line to obtain power, and the sliding contact line is arranged in a suspension mode in a walking area of the steel grabbing machine.

4. The scrap steel online crushing comprehensive recovery system according to claim 1, wherein the crushing system comprises a feeding roller device, a scrap steel crusher, a fluidized vibrating conveyor, a blower and a first belt conveyor; wherein,

the control system is respectively connected with the feeding rolling drum equipment, the scrap steel crusher, the fluidizing vibration conveyor, the air blower and the first rubber belt conveyor so as to control the feeding rolling drum equipment, the scrap steel crusher, the fluidizing vibration conveyor, the air blower and the first rubber belt conveyor to operate;

the feeding and rolling roller equipment is used for receiving the pre-crushed materials and the bulk materials sent by the pre-crushing system, flattening the pre-crushed materials and the bulk materials and feeding the flattened materials into the scrap steel crusher;

the scrap steel crusher is used for crushing the crushed pre-crushed materials and the crushed bulk materials to obtain crushed materials and discharging the crushed materials into the fluidized vibration conveyor in a closed manner; the scrap steel crusher is also hermetically connected with the dust collecting system so as to ensure that dust-containing tail gas enters the dust collecting system in the crushing process;

the fluidization vibration conveyor is also respectively connected with the air blower and the dust collecting system and is used for carrying out vibration conveying and fluidization treatment on the crushed materials so as to respectively obtain clean crushed materials and dust-containing tail gas;

the air blower is used for supplying air to the fluidization vibration conveyor, so that light substances in the crushed materials in the fluidization vibration conveyor are fluidized and enter the dust collection system along with tail gas;

the first belt conveyor is used for receiving clean crushed materials from the fluidized vibration conveyor and conveying the clean crushed materials to the magnetic separation system.

5. The comprehensive recovery system for online crushing of scrap steel according to claim 4, wherein the dust collecting system comprises a floccule separation chamber, a cyclone dust collector, a bag dust collector, an induced draft fan, an exhaust funnel and a closed rubber belt conveyor; wherein,

the control system is respectively connected with the floccule separation chamber, the cyclone dust collector, the bag dust collector, the induced draft fan and the closed rubber belt conveyor so as to control the floccule separation chamber, the cyclone dust collector, the bag dust collector, the induced draft fan and the closed rubber belt conveyor to operate;

the floccule separation chamber is respectively connected with the crusher and the fluidized vibration conveyor in a closed manner and is used for separating floccule large-particle light substances in the dust-containing tail gas from the crusher and the fluidized vibration conveyor and obtaining primary pretreated dust-containing tail gas;

the cyclone dust collector is positioned at the downstream of the floccule separation chamber in the dust collection process flow direction and is connected with the floccule separation chamber, and is used for separating large-particle dust in the primary pretreated dust-containing tail gas and obtaining secondary pretreated dust-containing tail gas;

the bag dust collector is positioned at the downstream of the cyclone dust collector in the dust collection process flow direction, is connected with the cyclone dust collector, and is used for separating small-particle dust in secondary pre-treated dust-containing tail gas and obtaining clean gas;

the induced draft fan is positioned at the downstream of the bag dust collector in the dust collection process flow direction, is connected with the bag dust collector and is used for enabling the dust collection system to form negative pressure so as to draft the fluidization vibration conveyor of the crusher and simultaneously conveying clean tail gas to the exhaust funnel;

the closed rubber belt conveyor is arranged below the flocculent separation chamber and the cyclone dust collector and is used for receiving flocculent large-particle light substances discharged from the flocculent separation chamber and receiving large-particle dust discharged from the cyclone dust collector and conveying the large-particle light substances to a large-particle light substance piling-up area.

6. The comprehensive recovery system for online crushing of scrap steel according to claim 4, characterized in that the magnetic separation system comprises a vibrating feeder and a roller magnetic separator; wherein,

the control system is respectively connected with the vibrating feeder and the roller magnetic separator so as to control the operation of the vibrating feeder and the roller magnetic separator;

the vibrating feeder is used for receiving the clean crushed materials sent by the first belt conveyor and feeding the clean crushed materials into the roller magnetic separator;

the roller magnetic separator is used for carrying out magnetic separation on clean broken materials to obtain finished waste steel and broken tailings respectively, wherein the finished waste steel automatically enters the material distribution system, and the broken tailings automatically enter the colored sorting system.

7. The comprehensive recovery system for online crushing of scrap steel according to claim 6, wherein the magnetic separation system further comprises a second belt conveyor, a reversible belt conveyor and a crushing tailing hopper; wherein,

the control system is respectively connected with the second rubber belt conveyor and the reversible rubber belt conveyor so as to control the second rubber belt conveyor and the reversible rubber belt conveyor to run;

the second rubber belt conveyor is obliquely arranged, one end of the second rubber belt conveyor is close to the roller magnetic separator, the other end of the second rubber belt conveyor is close to the reversible rubber belt conveyor, and one end of the second rubber belt conveyor is lower than the other end of the second rubber belt conveyor;

reversible rubber belt conveyor level sets up and is located the below of the other end of second rubber belt conveyor, the below of one end of reversible rubber belt conveyor is provided with broken tails hopper, the below of the other end of reversible rubber belt conveyor is broken tails temporary storage yard.

8. The comprehensive recovery system for online crushing of scrap steel according to claim 6, wherein the distribution system comprises a third belt conveyor, a discharge trolley and a throwing belt; wherein,

the control system is respectively connected with the third rubber belt conveyor, the discharge trolley and the material throwing belt so as to control the third rubber belt conveyor, the discharge trolley and the material throwing belt to run;

one end of the third belt conveyor is close to the magnetic separation system, and the other end of the third belt conveyor is close to a finished product scrap steel storage yard; the discharge trolley is positioned in the third belt conveyor, and the third belt conveyor is used for receiving the finished product steel scraps discharged by the magnetic separation system and conveying the finished product steel scraps to the discharge trolley;

the material throwing belt is horizontally arranged and is positioned below the discharge trolley and moves along with the discharge trolley; the discharging trolley is used for conveying finished product scrap steel to the throwing belt;

a finished product scrap steel stacking area is arranged below the throwing belt; the material throwing belt is used for throwing the finished product scrap steel to fall in a finished product steel stacking area.

9. The scrap steel online crushing comprehensive recovery system according to claim 1, wherein the colored sorting system comprises a plate ore feeder, a fourth belt conveyor, an iron remover, a screening device, a screw conveyor, a fifth belt conveyor, a sixth belt conveyor, an eddy current sorter and a non-colored metal sorter; wherein,

the control system is respectively connected with the plate ore feeding machine, the fourth belt conveyor, the iron remover, the screening equipment, the screw conveyor, the fifth belt conveyor, the sixth belt conveyor, the eddy current separator and the non-nonferrous metal separator so as to control the operation of the plate ore feeding machine, the fourth belt conveyor, the iron remover, the screening equipment, the screw conveyor, the fifth belt conveyor, the sixth belt conveyor, the eddy current separator and the non-nonferrous metal separator;

the plate mine feeder is used for receiving the broken tailings conveyed from the magnetic separation system and continuously and quantitatively conveying the broken tailings to the fourth belt conveyor; the motor of the plate ore feeder is subjected to frequency conversion and speed regulation;

the fourth belt conveyor is used for conveying the broken tailings sent by the plate ore feeding machine;

the iron remover is arranged above the fourth belt conveyor and is used for sucking magnetic materials in the broken tailings on the fourth belt conveyor so as to respectively obtain the magnetic materials and the primary treatment broken tailings;

the screening equipment is used for receiving the primary treatment crushing tailings sent by the fourth belt conveyor and screening the primary treatment crushing tailings to respectively obtain dust, large waste and secondary treatment crushing tailings;

the spiral conveyor is used for receiving dust discharged by the screening device and conveying the dust to a dust stacking area;

the fifth belt conveyor is used for receiving the large waste discharged by the screening equipment and conveying the large waste to a large waste stacking area;

the sixth belt conveyor is used for receiving secondary treatment crushing tailings discharged by the screening equipment, and a roller at the output end of the sixth belt conveyor is a permanent magnet roller; the permanent magnet roller is used for sucking scrap iron in the secondary treatment crushing tailings when the secondary treatment crushing tailings pass through the output end of the sixth belt conveyor so as to respectively obtain scrap iron and tertiary treatment crushing tailings;

the eddy current separator is used for receiving the three-stage treatment crushing tailings from the sixth belt conveyor and performing eddy current separation on the three-stage treatment crushing tailings to respectively obtain copper and aluminum and four-stage treatment crushing tailings;

the non-nonferrous metal separator is used for receiving the four-stage treatment crushing tailings discharged by the eddy current separator and separating the four-stage treatment crushing tailings to respectively obtain plastic/rubber and stainless steel.

10. The online crushing comprehensive recovery system of scrap steel according to claim 1, further comprising a monitoring system for monitoring the operation of the pre-crushing system, the dust collecting system, the magnetic separation system, the material distribution system, the colored sorting system, the circulating cooling water system and the spraying system.

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