CN211866151U - Online broken integrated recovery system of steel scrap - Google Patents
Online broken integrated recovery system of steel scrap Download PDFInfo
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- CN211866151U CN211866151U CN201922265349.9U CN201922265349U CN211866151U CN 211866151 U CN211866151 U CN 211866151U CN 201922265349 U CN201922265349 U CN 201922265349U CN 211866151 U CN211866151 U CN 211866151U
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Abstract
The utility model discloses an online broken recovery system that synthesizes of steel scrap, include through online integrated broken system in advance of control system, broken system, dust collecting system, magnetic separation system, cloth system, coloured system, circulative cooling water system and the spraying system of selecting separately. The pre-crushing system is used for pre-crushing the scrap steel incoming material packaging blocks; the crushing system is used for crushing the pre-crushed material and the bulk material to respectively obtain a crushed material and a dust-containing tail gas; the magnetic separation system is used for processing the crushed materials to respectively obtain finished waste steel and crushed tailings; the dust collecting system is used for treating dust-containing tail gas; the distribution system is used for conveying finished product steel scraps to a finished product steel scrap stacking area; the colored sorting system is used for gradually sorting out magnetic materials, dust, scrap iron, large waste materials, copper and aluminum, plastics and stainless steel. The utility model discloses realize the online breakage and the comprehensive recovery of all kinds of steel scraps, improved the operation environment, improve production line automation degree and production efficiency height.
Description
Technical Field
The utility model belongs to the technical field of the recovery technique is synthesized to the scrap steel and specifically relates to an online broken recovery system of synthesizing of scrap steel is related to.
Background
Scrap steel is an important secondary resource for steel production, and the proportion of the scrap steel in steel raw materials in China is larger and larger along with the lapse of time. The scrap steel has complex sources, and a large amount of waste plastics, waste rubber and waste nonferrous metals are mixed in the scrap steel and can be recycled after being crushed and sorted. Meanwhile, valuable substances in the raw materials can be comprehensively recovered after crushing and sorting.
At present, the domestic steel scrap crushing production line adopts: the process comprises the steps of steel grabbing machine feeding → crushing of a crusher → separation of a magnetic separator, wherein pre-crushing operation of a packaging block needs to be carried out through the pre-crusher, then the packaging block is transported to the crusher through the steel grabbing machine, and separation is carried out on the crushed magnetic separation tailings after being stockpiled through a colored separation system
The prior art has the following problems:
(1) the off-line operation of the pre-crusher has low system operation efficiency, frequent material transportation and large dust emission in a workshop.
(2) The broken materials have large dust raising in the process of transportation and have poor operation environment.
(3) The colored sorting system adopts off-line operation, the automation degree of feeding and sorting is low, and the workshop environment is poor.
(4) The broken material adopts the rotary belt cloth, and the cloth scope is limited, and the blanking drop is big, and there is the potential safety hazard in the blanking process, and the environmental effect is poor.
(5) Auxiliary systems such as circulating water and the like cannot be effectively integrated, equipment is dispersed, and the automation degree is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide an online broken recovery system that synthesizes of steel scrap, through online integrated broken system, dust collecting system, magnetic separation system, cloth system, coloured system, circulative cooling water system and the spraying system of selecting separately in advance, realize the online breakage and the comprehensive recovery of all kinds of steel scrap, improve the field work environment, improve production line automation degree, reduce workman's degree of labour, improve production efficiency.
The comprehensive recovery system for scrap steel online crushing according to the embodiment of the utility model comprises 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 online by 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.
According to the utility model discloses online broken recovery system of synthesizing of steel scrap, according to the utility model discloses online broken recovery system of synthesizing of steel scrap has following advantage: firstly, the control system controls the operation of 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, so that a set of finished integrated control waste steel on-line crushing comprehensive recovery system with high automation degree is formed, the crushing and sorting efficiency is high, and the comprehensive recycling of different types of waste steel raw materials can be realized; secondly, the operation can be controlled on line in the whole process, and each system can be separated from the independent operation, so that the operation is flexible; thirdly, the labor intensity of workers is reduced through automatic control; fourthly, most of light substances and dust are sucked from the crushed materials in the crushing system through the dust collecting system, the sucked light substances and dust enter the dust collecting system in the form of dust-containing tail gas, the dust collecting system efficiently separates flocculent light substances such as large particle substances, large particle dust substances and small particle dust substances like sponge/waste plastics from the dust-containing tail gas in sequence, and finally clean tail gas is obtained and discharged out of the dust collecting system. Therefore, dust flying of the crushed materials in the transportation process can be avoided, the workshop operation environment is improved, the environment protection effect is good, meanwhile, floccule light substances, large-particle dust and small-particle dust are recovered and can be sold for reuse, and the quality of finished waste steel is improved; fifthly, recovering finished product scrap steel from the crushed materials through a magnetic separation system, and selling the scrap steel for reuse; and sixthly, magnetic materials, dust, scrap iron, large waste materials, copper and aluminum, plastics, stainless steel and other materials are separated from the broken tailings through a colored separation system and can be sold and reused.
According to an embodiment of the present invention, the pre-crushing system comprises a pre-crusher, a steel grasping 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.
According to a further embodiment of the present invention, the steel grasping machine is a diesel powered steel grasping machine, an electric powered steel grasping machine, or a diesel/electric hybrid steel grasping 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.
According to one embodiment of the present invention, the crushing system comprises a feed rolling drum device, a scrap steel crusher, a fluidized vibratory conveyor, an air 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 tail gas enters the dust collection system;
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.
According to a further embodiment of the present invention, the dust collecting system comprises a flocculent separation chamber, a cyclone dust collector, a cloth 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.
According to a further embodiment of the present invention, the magnetic separation system comprises a vibratory 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.
According to a still further embodiment of the present invention, the magnetic separation system further comprises a second belt conveyor, a reversible belt conveyor and a broken 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.
According to a still further embodiment of the present invention, the material distribution system comprises a third belt conveyor, a dump car and a material 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.
According to an embodiment of the present invention, 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.
According to the utility model discloses an embodiment, still include monitored control system, monitored control system is used for the control broken system in advance broken system dust collecting system the magnetic separation system the cloth system colored sorting system recirculated cooling water system with spraying system's operation.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of an online crushing comprehensive recovery system for scrap steel according to an embodiment of the present invention.
Reference numerals:
online broken integrated recovery system 1000 of steel scrap
Feeding roller compaction equipment 201 scrap steel crusher 202 fluidization vibrating conveyor 203
Magnetic separation system 4
Vibrating feeder 401 roller magnetic separator 402 second belt conveyor 403
Distributing system 5
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
An on-line scrap crushing comprehensive recycling system 1000 according to an embodiment of the present invention is described below with reference to fig. 1.
As shown in FIG. 1, according to the utility model discloses online broken integrated recovery system 1000 of scrap steel, include through control system (not shown in the figure) online integrated broken system 1 in advance, broken system 2, dust collecting system 3, magnetic separation system 4, cloth system 5, coloured separation system 6, recirculating cooling water system (not shown in the figure) and spraying system (not shown in the figure).
In particular, the pre-crushing system 1 is used for pre-crushing scrap incoming material bales to obtain pre-crushed material and feeding the pre-crushed material with bulk material into the crushing system 2.
The crushing system 2 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 4, and the dust-containing tail gas is sucked into the dust collection system 3 under the negative pressure action of the dust collection system 3.
The magnetic separation system 4 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 5, and sending the crushed tailings into the colored separation system 6.
The dust collecting system 3 is used for sucking the dust-containing tail gas of the crushing system 2 and treating the dust-containing tail gas so as to respectively obtain large-particle floccule light substances, dust and clean tail gas gradually. By arranging the dust collecting system 3, light substances such as sponge, plastic, rubber, dust and the like can be prevented from entering a workshop environment when the pre-crushed material and the bulk material are crushed by the crushing system 2, the workshop operation environment is improved, and meanwhile, flocculent large-particle light substances such as sponge, plastic, rubber and the like are conveyed to a large-particle light substance stacking area and can be sold for recycling; the dust can be contained in a ton bag for sale and can be recycled.
The material distribution system 5 is used for receiving the finished product steel scraps from the magnetic separation system 4 and sending the finished product steel scraps to a finished product steel scrap stacking area. The finished product steel scrap can be sold for recycling.
The non-ferrous sorting system 6 is used for processing the broken tailings so as to respectively and gradually obtain magnetic materials, dust, scrap iron, large waste materials, copper and aluminum, plastics and stainless steel; the sorted materials can also be sold for recycling.
The circulating cooling water system is used for supplying water to the production line of the waste steel on-line crushing comprehensive recovery system 1000, and ensures that all production equipment is not damaged.
The spraying system is used for spraying and cooling the crushed materials in the crushing system 2, so that the temperature of the crushed materials is reduced, and the damage to the post-processing equipment when the high-temperature crushed materials enter the post-processing equipment is avoided.
The control system is used for controlling the operation of the pre-crushing system 1, the crushing system 2, the dust collecting system 3, the magnetic separation system 4, the material distribution system 5, the colored sorting system 6, the circulating cooling water system and the spraying system, so that a set of finished integrated control type waste steel online crushing comprehensive recovery system 1000 with high automation degree is formed, the crushing and sorting efficiency is high, and the comprehensive recycling of different types of waste steel raw materials can be realized.
According to the utility model discloses online broken recovery system 1000 of synthesizing of steel scrap has following advantage: firstly, the control system controls the operation of the pre-crushing system 1, the crushing system 2, the dust collecting system 3, the magnetic separation system 4, the material distribution system 5, the colored sorting system 6, the circulating cooling water system and the spraying system, so that a set of finished integrated control comprehensive recovery system 1000 for waste steel online crushing with high automation degree is formed, the crushing and sorting efficiency is high, and the comprehensive recycling of different types of waste steel raw materials can be realized; secondly, the operation can be controlled on line in the whole process, and each system can be separated from the independent operation, so that the operation is flexible; thirdly, the labor intensity of workers is reduced through automatic control; fourthly, most of light substances and dust are sucked from the crushed materials in the crushing system 2 through the dust collecting system 3, the sucked light substances and dust enter the dust collecting system 3 in the form of dust-containing tail gas, the dust collecting system 3 efficiently separates flocculent light substances such as large particle substances, large particle dust substances and small particle dust substances like sponge/waste plastics from the dust-containing tail gas in sequence, and finally clean tail gas is obtained and discharged out of the dust collecting system 3. Therefore, dust flying of the crushed materials in the transportation process can be avoided, the workshop operation environment is improved, the environment protection effect is good, meanwhile, floccule light substances, large-particle dust and small-particle dust are recovered and can be sold for reuse, and the quality of finished waste steel is improved; fifthly, finished product scrap steel is recovered from the crushed materials through the magnetic separation system 4 and can be sold for reuse; and sixthly, magnetic materials, dust, scrap iron, large waste materials, copper and aluminum, plastics, stainless steel and other materials are separated from the broken tailings through the colored separation system 6 and can be sold and reused.
According to an embodiment of the present invention, the pre-crushing system 1 comprises a pre-crusher 101, a steel grabber 102 and a feeding conveyor 103;
wherein the control system is connected with the pre-crusher 101 and the feeding conveyor 103 respectively to control the operation of the pre-crusher 101 and the feeding conveyor 103;
the pre-crusher 101 is used for pre-crushing the scrap 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 grab 102 is located near the pre-crushed material and bulk material stacking area and is used for transferring the pre-crushed material and the bulk material to the material conveyer 103; the feeding conveyor 103 is used for conveying pre-crushed material and bulk material to the crushing system 2.
It can be understood that the pre-crushing system 1 has high working efficiency and high automation degree and reduces the labor intensity of workers by controlling the pre-crusher 101 and the feeding conveyor 103 respectively through the control system. In addition, the pre-crusher 101 is used for pre-crushing the scrap incoming material packaging blocks, so that the crushing of the crusher in the subsequent crushing system 2 is facilitated, and the crushing efficiency of the crusher in the crushing system 2 is improved; through setting up material loading conveyer 103, avoided the material to frequently transport, reduced the workshop raise dust.
It should be noted that, in this embodiment, the pre-crusher 101 is a dual-shaft shear type crusher, and is mainly used for tearing the scrap incoming material bale, which is beneficial for the crushing of the subsequent crusher. The number of the pre-crushers 101 may be 1 or more depending on the number of the scrap incoming material package pieces. For example, a centralized arrangement of a plurality of pre-crushers 101 can be adopted to perform centralized feeding, and meanwhile, pre-crushed materials are collected and transported to the feeding conveyor 103 or sent to a pre-crushed material and bulk material stacking area through 1 reversible conveyor. During production, on-line operation (namely, the pre-crushed materials are directly sent to the crushing system 2) or off-line operation (namely, the pre-crushed materials are sent to the pre-crushed material and bulk material stacking area) can be adopted according to actual needs.
In the embodiment, the feeding conveyor 103 adopts a apron conveyor, a chain plate conveyor or a crawler conveyor, a driving device of the feeding conveyor 103 adopts a variable frequency motor, and the width of the conveying belt is 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 3500-6000 mm, a feeding hopper is arranged above the horizontal section (the original bottom is a straight section), the size of a feeding hole of the feeding hopper is 3500X 2500mm, and the height is 2000 mm. During production, pre-crushed materials and bulk materials enter a horizontal section of a feeding conveyor 103 (a chain plate conveyor) from a feeding hopper through a steel grabbing machine 102. In order to prevent the materials from being scattered, baffles are arranged on two side edges of the feeding conveyor 103, and the height of each baffle is about 1200 mm.
In other embodiments, the pre-crushed material and the bulk material discharged by the pre-crusher 101 may not be dumped into the feeding conveyor 103 by the steel grab 102, but may be directly conveyed into the feeding conveyor 103 by the rubber belt conveyor.
According to a further embodiment of the present invention, the steel grasping machine 102 is a diesel powered steel grasping machine 102, an electric powered steel grasping machine 102, or a diesel/electric hybrid steel grasping machine 102. It is understood that the steel grasping machine 102 may be selected according to actual conditions.
When the steel grabbing machine 102 is an electric power steel grabbing machine 102 or a diesel/electric power hybrid steel grabbing machine 102, the steel grabbing machine 102 adopts a power taking mode of moving from a trolley line to take power, and the trolley line is arranged in a walking area of the steel grabbing machine 102 in a suspended mode. Specifically, the trolley line can be supported by a factory building stand column or a support is erected for supporting, a cable of the steel grabbing machine 102 gets power from the trolley line, a part of the cable of the steel grabbing machine 102, which is in contact with the trolley line, can move on the trolley line and always keep an electric contact state, so that a mobile power-getting mode of the electric power steel grabbing machine 102 or the hybrid power steel grabbing machine 102 is realized, a power-getting point of the steel grabbing machine 102 can be any one position on the trolley line, the working range of the steel grabbing machine 102 is greatly expanded, the working range of the steel grabbing machine 102 is more flexible, the steel grabbing machine 102 is prevented from being plugged in and pulled out of a power supply in a walking process, and the working efficiency is improved. Meanwhile, one trolley line can supply power for the plurality of electric power steel grabbing machines 102 or the hybrid power steel grabbing machine 102 to move for getting power, so that the operation efficiency is improved.
According to one embodiment of the present invention, the crushing system 2 comprises a feeding crushing roller device 201, a scrap crusher 202, a fluidized vibratory conveyor 203, an air blower 204 and a first rubber belt conveyor 205; wherein,
the control system is respectively connected with the feeding roller compaction roller device 201, the scrap steel crusher 202, the fluidizing vibration conveyor 203, the air blower 204 and the first rubber belt conveyor 205 so as to control the operation of the feeding roller compaction roller device 201, the scrap steel crusher 202, the fluidizing vibration conveyor 203, the air blower 204 and the first rubber belt conveyor 205;
the feeding and rolling roller device 201 is used for receiving the pre-crushed materials and the bulk materials sent by the pre-crushing system 1, flattening the pre-crushed materials and the bulk materials and then feeding the flattened materials into the scrap steel crusher 202;
the scrap steel crusher 202 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 vibrating conveyor 203 in a closed manner; the scrap steel crusher 202 is also hermetically connected with the dust collecting system 3, so that dust-containing tail gas in the crushing process enters the dust collecting system 3;
the fluidization vibration conveyor 203 is also respectively connected with the air blower 204 and the dust collecting system 3 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 blower 204 is used for supplying air to the fluidizing vibration conveyor 203, so that light substances in the crushed materials in the fluidizing vibration conveyor 203 are fluidized and enter the dust collecting system 3 along with tail gas;
the first belt conveyor 205 is used to receive the clean crushed material from the fluidized vibratory conveyor 203 and convey the clean crushed material into the magnetic separation system 4.
It can be understood that the operation of the feeding and rolling roller device 201, the scrap steel crusher 202, the fluidized vibration conveyor 203, the blower 204 and the first belt conveyor 205 is controlled by the control system, so that the working efficiency of the crushing system 2 is improved, the automation degree is high, and the labor intensity of workers is reduced. Moreover, the pre-crushing material and the bulk material can be evenly and stably fed into the scrap steel crusher 202 after being flattened by the feeding rolling roller, and meanwhile, the feeding amount can be adjusted according to the condition of the scrap steel crusher 202; through the arrangement of the fluidized vibration conveyor 203 and the air blower 204, the crushed materials from the scrap steel crusher 202 can be conveyed, light substances and heavy substances in the crushed materials are effectively separated, the light substances such as sponge, plastics, rubber and dust are fluidized and enter the dust collecting system 3 in the form of dust-containing tail gas, and the heavy substances enter the first rubber belt conveyor 205 and are conveyed to the magnetic separation system 4 through the first rubber belt conveyor 205, so that on one hand, the field operation environment is greatly improved, on the other hand, the light substances such as sponge, plastics and the like are prevented from blocking the subsequent magnetic separation system 4, the smooth operation of the magnetic separation system 4 is ensured, and the separation efficiency of the magnetic separation system 4 is improved.
It should be noted that, in this embodiment, the feeding rolling roller device 201 adopts a double-roller rolling manner, the driving manner is hydraulic driving, and the up-down movement distance of the rollers is between 1000mm and 2000 mm.
According to a further embodiment of the present invention, the dust collecting system 3 comprises a floc separation chamber 301, a cyclone dust collector 302, a bag dust collector 303, an induced draft fan 304, an exhaust funnel 305 and a closed rubber belt conveyor 306; wherein,
the control system is respectively connected with the floccule separation chamber 301, the cyclone dust collector 302, the bag dust collector 303, the induced draft fan 304 and the closed adhesive tape conveyor 306 so as to control the operation of the floccule separation chamber 301, the cyclone dust collector 302, the bag dust collector 303, the induced draft fan 304 and the closed adhesive tape conveyor 306;
the floccule separating chamber 301 is hermetically connected with the crusher and the fluidized vibration conveyor 203 respectively, and is used for separating floccule large-particle light substances such as waste plastics/waste sponge from the dust-containing tail gas of the crusher and the fluidized vibration conveyor 203 and obtaining primary pretreated dust-containing tail gas;
the cyclone dust collector 302 is positioned at the downstream of the floccule separation chamber 301 in the dust collection process flow direction and is connected with the floccule separation chamber 301, 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 303 is positioned at the downstream of the cyclone dust collector 302 in the dust collection process flow direction, is connected with the cyclone dust collector 302, and is used for separating small-particle dust in the secondary pre-treated dust-containing tail gas and obtaining clean gas;
the induced draft fan 304 is positioned at the downstream of the bag dust collector 303 in the dust collecting process flow direction, is connected with the bag dust collector 303, and is used for enabling the dust collecting system 3 to form negative pressure so as to draft the crusher and the fluidization vibration conveyor 203 and simultaneously conveying clean tail gas to the exhaust funnel 305;
an airtight belt conveyor 306 is disposed below the floc separation chamber 301 and the cyclone cleaner 302 for receiving the floc large particle light matter discharged from the floc separation chamber 301 and receiving the large particle dust discharged from the cyclone cleaner 302 and conveying to the large particle light matter piling-up area.
The working process of the dust collecting system 3 is as follows: the dust collecting system 3 is in a negative pressure environment by starting the induced draft fan 304, the crusher and the fluidized vibration conveyor 203 can be drafted, therefore, dust-containing tail gas from the crusher and the fluidized vibration conveyor 203 can enter the floccule separation chamber 301, floccules such as waste plastics, waste sponge, waste rubber and the like in the dust-containing tail gas are filtered out by the floccule separation chamber 301 to obtain primary pretreated dust-containing tail gas, so that the process dust collecting equipment is prevented from being blocked by the floccules and the blanking of the post-process dust collecting equipment is prevented from being unsmooth, after the primary pretreated dust-containing tail gas enters the cyclone dust collector, large particle dust in the primary pretreated dust-containing tail gas is filtered out by the cyclone dust collector to obtain secondary pretreated dust-containing tail gas, the secondary pretreated dust-containing tail gas enters the cloth bag dust collector 303, small particle dust in the secondary pretreated dust-containing tail gas is filtered out by the cloth bag dust collector 303 to obtain clean tail gas, clean tail gas enters the draught fan 304 and is discharged through the exhaust funnel 305, dust collection of dust-containing tail gas is achieved, the dust collection effect is good, and meanwhile floccules and dust are effectively separated; the closed rubber belt conveyor 306 can automatically convey floccules and large-particle dust to a large-particle light substance stacking area in a closed mode, so that the field operation environment is greatly improved; the floccule, the large-particle dust, the small-particle dust and the like can be recycled after being recycled, so that the resources can be saved and the income can be improved; the PLC control system is used for controlling the operations of the floccule separation chamber 301, the cyclone dust collector, the bag dust collector 303, the induced draft fan 304 and the closed rubber belt conveying, so that the working strength of workers is reduced. In conclusion, the dust collecting system 3 ensures the field operation environment, can gradually recycle floccules, large-particle dust and small-particle dust, has a simple structure and small occupied area, and effectively reduces the cost.
According to a further embodiment of the present invention, the magnetic separation system 4 comprises a vibrating feeder 401 and a roller magnetic separator 402; wherein,
the control system is respectively connected with the vibrating feeder 401 and the roller magnetic separator 402 so as to control the operation of the vibrating feeder 401 and the roller magnetic separator 402;
the vibrating feeder 401 is used for receiving the clean crushed materials sent by the first belt conveyor 205 and feeding the clean crushed materials into the roller magnetic separator 402;
the roller magnetic separator 402 is used for performing magnetic separation on clean crushed materials to obtain finished steel scraps and crushed tailings respectively, wherein the finished steel scraps automatically enter the material distribution system 5, and the crushed tailings automatically enter the colored sorting system 6.
It can be understood that the control system controls the operation of the vibrating feeder 401 and the roller magnetic separator 402, so that the magnetic separation system 4 automatically works, and the working intensity of workers is reduced. Through vibrating feeder 401 feed, the feed is even, can avoid the material to block up in roller magnet separator 402, simultaneously, improves roller magnet separator 402's separation efficiency.
Alternatively, the drum magnetic separator 402 may be a permanent magnet or electromagnetic separator.
According to a still further embodiment of the present invention, the magnetic separation system 4 further comprises a second belt conveyor 403, a reversible belt conveyor 404 and a broken tailings hopper 405; wherein,
a control system is connected with the second belt conveyor 403 and the reversible belt conveyor 404 respectively to control the operation of the second belt conveyor 403 and the reversible belt conveyor 404;
the second belt conveyor 403 is obliquely arranged, one end of the second belt conveyor 403 is close to the roller magnetic separator 402, the other end of the second belt conveyor 403 is close to the reversible belt conveyor 404, and one end of the second belt conveyor 403 is lower than the other end of the second belt conveyor 403;
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 degree of conveying broken tailings and reduces the working strength of workers. By providing the second belt conveyor 403, it is convenient to convey the broken tailings. Through setting up reversible rubber belt conveyor 404, can be so that broken tails carry broken tails hopper 405 or the interim storage yard department of broken tails according to actual conditions, for example, when colored sorting system 6 breaks down, can carry broken tails to the interim storage yard department of broken tails, be favorable to guaranteeing the normal smooth and easy operation of online broken comprehensive recovery system 1000 of scrap steel like this. By providing a hopper, the broken tailings can be buffered and discharged into the colored sorting system 6, for example on the plate ore feeder 601 of the colored sorting system 6.
Preferably, the broken tailings hopper 405 carbon steel bin has a volume which meets 2-4h of colored sorting storage, and a ventilation hood is arranged above the hopper.
Preferably, magnetic separation system 4 further comprises a loader 406, and loader 406 can transport the broken tailings to other locations as the case may be.
According to a still further embodiment of the present invention, the material distribution system 5 comprises a third belt conveyor 501, a dump car 502 and a material throwing belt 503; wherein,
the control system is respectively connected with the third belt conveyor 501, the discharge trolley 502 and the material throwing belt 503 to control the operation of the third belt conveyor 501, the discharge trolley 502 and the material throwing belt 503;
one end of the third belt conveyor 501 is close to the magnetic separation system 4, and the other end of the third belt conveyor is close to a finished product scrap steel yard; the discharge trolley 502 is positioned in the third belt conveyor 501, and the third belt conveyor 501 is used for receiving finished product steel scraps discharged by the magnetic separation system 4 and conveying the finished product steel scraps to the discharge trolley 502;
the material throwing belt 503 is horizontally arranged and is positioned below the discharge trolley 502 to move along with the discharge trolley 502; the discharging trolley 502 is used for conveying finished product scrap steel to a throwing belt 503;
a finished product scrap steel stacking area is arranged below the throwing belt 503; the throwing belt 503 is used for throwing the finished product scrap steel to the finished product steel stacking area.
It can be understood that the throwing belt 503 is located below the discharging trolley 502, and moves along the third belt conveyor 501 along with the discharging trolley 502, and can also move along the length direction of the throwing belt. Through the layout arrangement of the third belt conveyor 501, the discharge trolley 502 and the throwing belt 503, the blanking fall of the finished product steel scrap is greatly reduced, the potential safety hazard in the blanking process is reduced, the field operation environment is improved, and the finished product steel scrap can be uniformly distributed in a finished product stacking area stock yard. The operation of the third belt conveyor 501, the discharge trolley 502 and the throwing belt 503 is controlled by the control system, so that the automatic operation degree of the material distribution system 5 can be improved, the manual strength of workers is reduced, and the material distribution efficiency is high.
Optionally, the width of the material throwing belt 503 is 800-1000 mm, the belt speed is 2.0-3.0 m/s, and the length is 3000-5000 mm, and the material throwing belt is used for uniformly distributing the finished product scrap steel in a finished product stacking area stock yard.
According to one embodiment of the present invention, the colored sorting system 6 comprises 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, a sixth belt conveyor 607, an eddy current sorter 608, and a non-colored metal sorter 609; wherein,
the control system is respectively connected with the plate ore feeding machine 601, the fourth belt conveyor 602, the iron remover 603, the screening device 604, the screw conveyor 605, the fifth belt conveyor 606, the sixth belt conveyor 607, the eddy current classifier 608 and the non-ferrous metal classifier 609 so as to control the operation of the plate ore feeding machine 601, the fourth belt conveyor 602, the iron remover 603, the screening device 604, the screw conveyor 605, the fifth belt conveyor 606, the sixth belt conveyor 607, the eddy current classifier 608 and the non-ferrous metal classifier 609;
the plate ore feeder 601 is used for receiving the broken tailings conveyed from the magnetic separation system 4 and continuously and quantitatively conveying the broken tailings to the fourth belt conveyor 602; the motor of the plate ore feeder 601 performs frequency conversion and speed regulation;
the fourth belt conveyor 602 is used for conveying the broken tailings from the plate ore feeder 601;
the iron remover 603 is arranged above the fourth belt conveyor 602, and the iron remover 603 is used for attracting magnetic materials in the broken tailings on the fourth belt conveyor 602 to respectively obtain the magnetic materials and primary treatment broken tailings, wherein the magnetic materials enter a magnetic material stacking area, and the primary treatment broken tailings enter a screening device 604;
the screening device 604 is used for receiving the primary treatment crushing tailings sent by the fourth belt conveyor 602 and screening the primary treatment crushing tailings to obtain dust, large waste materials and secondary treatment crushing tailings respectively;
the screw conveyor 605 is for receiving dust discharged by the screening apparatus 604 and conveying the dust to a dust accumulation area;
the fifth belt conveyor 606 is used for receiving the large waste materials discharged by the screening device 604 and conveying the large waste materials to a large waste material stacking area;
the sixth belt conveyor 607 is used for receiving the secondary treatment crushed tailings discharged by the screening equipment 604, and a roller at the output end of the sixth belt conveyor 607 is a permanent magnet roller 6071; the permanent magnet drum 6071 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 607 so as to respectively obtain scrap iron and tertiary treatment crushing tailings, the scrap iron is rotated to the position below the sixth belt conveyor 607 when the sixth belt conveyor 607 continues to operate, is away from the permanent magnet drum 6071 and is not sucked by the permanent magnet drum 6071 any more so as to fall into an scrap iron stacking area, and the tertiary treatment crushing tailings enter the eddy current separator 608;
the eddy current separator 608 is configured to receive the tertiary treatment crushed tailings from the sixth belt conveyor 607, and perform eddy current separation on the tertiary treatment crushed tailings to obtain copper and aluminum and a quaternary treatment crushed tailings, respectively, where the copper and aluminum enter the copper and aluminum stacking area, and the quaternary treatment crushed tailings enter the non-nonferrous metal separator 609;
the non-ferrous metal classifier 609 is used for receiving the four-stage treatment crushing tailings discharged from the eddy current classifier 608 and classifying the four-stage treatment crushing tailings to obtain plastic/rubber and stainless steel respectively.
It can be understood that the control system controls the operation of the plate ore feeder 601, the fourth belt conveyor 602, the iron remover 603, the screening device 604, the screw conveyor 605, the fifth belt conveyor 606, the sixth belt conveyor 607, the eddy current separator 608 and the non-nonferrous metal separator 609, so that the automation degree of the colored separation system 6 can be improved, the labor intensity of workers can be reduced, and the separation efficiency is high. By arranging the iron remover 603 above the fourth belt conveyor 602, the magnetic material in the broken tailings can be attracted to include weak magnetic material, so that the magnetic material and the primary-treatment broken tailings are obtained, and the magnetic material can be recycled. Through the screening equipment 604, dust, large waste and secondary treatment crushed tailings can be separated from the primary treatment crushed tailings, wherein the dust can be conveyed to a dust stacking area through spiral conveying, and is convenient to convey to a landfill site for landfill subsequently; the large materials are conveyed to a large material stacking area through a fifth belt conveyor 606, and the large materials can return to the crusher to be crushed continuously; one frame of broken tails of handling is carried and is selected separately by sixth rubber belt conveyor 607 and obtains iron fillings and the broken tails of tertiary processing through the defeated machine transport of sixth rubber belt, and wherein, iron fillings get into iron fillings piling zone, and iron fillings can be retrieved and recycled. By arranging the eddy current separator 608, the three-stage treatment crushing tailings can be separated to obtain copper and aluminum and four-stage treatment crushing 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 sold as a valuable product. Through setting up non-non ferrous metal sorter 609, can separate the broken tails of level four processing and obtain plastics/rubber and stainless steel, wherein, stainless steel gets into stainless steel and stacks the district, and the stainless steel can be retrieved and recycled, can sell as the valuable product, and plastics/rubber gets into plastics/rubber and stacks the district, and plastics/rubber can be used to make the fuel particle or adopt pyrolysis of pyrolysis oven pyrolysis recovery oil, gas product. In conclusion, the colored sorting system 6 adopts on-line operation, has high automation degree of feeding and sorting, and improves the field environment.
According to the utility model discloses an embodiment still includes monitored control system, and monitored control system is used for the operation of control broken system 1 in advance, broken system 2, dust collecting system 3, magnetic separation system 4, cloth system 5, coloured sorting system 6, recirculated cooling water system and spraying system, guarantees that production is smooth and easy.
According to the utility model discloses further embodiment, monitored control system rolls the infrared spherical camera of second above the cylinder equipment 201 including the first infrared spherical camera that sets up crusher 101 top and setting in the feeding for guide crushing and broken operation in advance.
According to the utility model discloses an embodiment, recirculating cooling water system includes cooling tower, circulating water pump, trip valve, pressure monitoring unit and temperature monitoring unit. The circulating cooling water system can supply water to the production line of the online scrap steel crushing and comprehensive recovery system 1000 and can also supply water to other equipment (such as an air compressor and the like) in a plant area. The circulating water pumps are generally provided with 3 circulating water pumps, the water amount of each circulating water pump is 30-150 t/h, 2 power frequencies (1 spare power) and 1 variable frequency pump. The temperature difference between a variable frequency motor of the variable frequency circulating water pump and a water supply and return header pipe is interlocked through a control system, and the circulating water temperature difference is controlled to be 6 +/-1 ℃. The cut-off valve is interlocked with the temperature of the heat-exchanged medium of each water using system through a control system, the cut-off valve is automatically opened for heat exchange when the temperature of the heat-exchanged medium exceeds a set value, and the cut-off valve is automatically closed to save production energy consumption when the temperature of the heat-exchanged medium is lower than the set value. The water inlet pipe and the water outlet pipe of each water using unit are provided with temperature monitoring units, and when the temperature of the inlet water and the water outlet water exceeds 8 ℃, an alarm is given.
According to the utility model discloses an embodiment, spraying system includes water tank, frequency conversion water pump and shower nozzle. The water tank is a carbon steel closed water tank and is provided with a water inlet, a water outlet, an overflow port and a sewage outlet, and the volume of the water tank is 3-8 m3The frequency conversion water pump 1 is provided with 1, the pressure head is 0.3-0.4 Mpa, the flow is 0-10 t/h, and the spraying water flow is controlled according to the temperature of dust-containing tail gas during production. The spray nozzles are positioned in the shell of the crusher of the crushing system 2 uniformly2-3 spray nozzles with the aperture of 1-2 mm are arranged for atomizing the spray water.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above 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.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which 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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961431A (en) * | 2019-12-16 | 2020-04-07 | 中国恩菲工程技术有限公司 | Online broken integrated recovery system of steel scrap |
| CN114309014A (en) * | 2022-01-11 | 2022-04-12 | 宝裕环境控股有限公司 | Preparation method of broken recycled steel |
| WO2023152545A1 (en) * | 2022-02-10 | 2023-08-17 | Arcelormittal | Method for the treatment of ferrous scrap comprising magnetic and non-magnetic materials and associated plant |
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2019
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961431A (en) * | 2019-12-16 | 2020-04-07 | 中国恩菲工程技术有限公司 | Online broken integrated recovery system of steel scrap |
| CN110961431B (en) * | 2019-12-16 | 2024-07-26 | 中国恩菲工程技术有限公司 | Online broken comprehensive recovery system of steel scrap |
| CN114309014A (en) * | 2022-01-11 | 2022-04-12 | 宝裕环境控股有限公司 | Preparation method of broken recycled steel |
| WO2023152545A1 (en) * | 2022-02-10 | 2023-08-17 | Arcelormittal | Method for the treatment of ferrous scrap comprising magnetic and non-magnetic materials and associated plant |
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