Steel slag crushing, magnetic separation and recycling system

Abstract

The invention discloses a steel slag crushing, magnetic separation and recycling system which comprises a plant, a bridge crane, a slag braising pit, a pit cover and an exhaust chimney, a bridge crane is arranged in the plant, and a hot-stewed slag pit is arranged on the ground of the plant; the hot-stewed slag pit is of a cavity structure with an opening in the top, a pit cover is arranged at the opening top of the hot-stewed slag pit in a matched mode, and one side of the hot-stewed slag pit is connected with an exhaust chimney. And a steel slag magnetic separation comprehensive utilization production line which is higher in efficiency, higher in resource recycling rate and more environment-friendly is planned, so that all steel slag generated by steelmaking is utilized.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic separation and recovery, and in particular to a steel slag crushing and magnetic separation and recovery system. Background Art

[0002] Magnetic separation belongs to the selection of ilmenite. It uses the different magnetic permeabilities of various minerals to make them pass through a magnetic field. Due to the different reactions of different minerals to the magnetic field, the minerals with high magnetic permeability are sucked up by the magnetic disk, and then fall down when they lose magnetism and are collected by the aggregate funnel. The minerals with low magnetic permeability are not sucked up, and remain in the material or are taken out with the rotating belt as tailings and separated. The working principle of magnetic separation is that after being subjected to the combined action of magnetic force and other mechanical forces (such as gravity, centrifugal force, friction, medium resistance, etc.), the magnetic mineral particles are subjected to the combined action of magnetic force and other mechanical forces (such as gravity, centrifugal force, friction, medium resistance, etc.). The magnitude of the magnetic force on the magnetic mineral particles is related to the magnetism of the mineral itself; the non-magnetic mineral particles are mainly subjected to mechanical force. Therefore, each moves along a different path and is separated. Generally speaking, the magnitude of the magnetic force on the magnetic particles in the magnetic field is proportional to the magnetic field strength and gradient.

[0003] The backward magnetic separation process for raw steel slag treatment will result in low treatment efficiency and high pollution, which cannot meet the comprehensive utilization and environmental protection requirements of steel slag solid waste treatment. Therefore, a steel slag crushing magnetic separation recycling system is provided. A steel slag magnetic separation comprehensive utilization production line with higher efficiency, higher resource recycling and more environmental protection is planned to achieve the utilization of all the steel slag produced by steelmaking. Summary of the invention

[0004] In view of the above problems, the object of the present invention is to provide a steel slag crushing and magnetic separation recycling system.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A steel slag crushing and magnetic separation recycling system, comprising: a plant, a bridge crane, a slag stewing pit, a pit cover, and an exhaust chimney;

[0007] There is a bridge crane in the factory building, and a hot slag pit is set on the floor of the factory building;

[0008] The hot stewing slag pit is arranged as a cavity structure with an opening at the top, a pit cover is arranged matching the opening top of the hot stewing slag pit, and an exhaust chimney is connected to one side of the hot stewing slag pit.

[0009] Further: also includes a vibrating screen;

[0010] The vibrating screen comprises: a screen body, a second support, a second steel spring, and a transmission part;

[0011] The second support is connected to the screen body through a second steel spring, and the screen body is driven by the transmission part.

[0012] Further: also includes a feeder;

[0013] The feeder includes: a motor bracket, a first support, a motor, a pulley, a driver, a screen cabinet, and a first steel spring;

[0014] The motor bracket is provided with a first support and a motor;

[0015] The first support is connected to the screen cabinet through a first steel spring, and a driver is arranged on the outside of the screen cabinet;

[0016] The pulley is sleeved on the output shaft of the motor and the output shaft of the driver.

[0017] Further: also includes a conveyor;

[0018] The conveyor includes: transmission device, frame, roller, vertical roller, screw, endless conveyor belt, guide trough, magnetic drum parts;

[0019] A transmission device is arranged on one side of the frame, a supporting roller is arranged on the frame, and a vertical roller is arranged on the frame by screws;

[0020] Magnetic drum components are arranged at both ends of the frame, and an annular conveyor belt is arranged between the magnetic drum components.

[0021] Further: the output shaft at one end of the transmission device is drivingly connected to a magnetic roller component.

[0022] Furthermore: both ends of the roller are arranged between the annular conveyor belts.

[0023] Furthermore: there is a slag tank truck running in the factory building, and a slag tank is placed on the slag tank truck.

[0024] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0025] (1) The steel slag is placed in a slag pot, which is placed on a slag pot truck. The slag pot truck drives into the factory building. The slag pot on the slag pot truck is used by a bridge crane to pour the steel slag in the slag pot into the hot simmering slag pit. After hot simmering, the slag is transported by car. The steel slag is loaded into a dump truck and transported to the screening place for screening. The screening will be fed by a feeder and large pieces of steel slag will be crushed. The vibrating screen is used for screening. The screened steel slag is placed on the screen body. After being transported by a conveyor, the screened steel slag is subjected to magnetic separation.

[0026] (2) Solve the problem of steel slag accumulation. The process is simple and reliable, can be operated continuously, has low processing cost and high efficiency, and all steel slag can be comprehensively utilized. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention.

[0028] Figure 2It is a schematic structural diagram of the vibrating screen of the present invention.

[0029] Figure 3 It is a structural schematic diagram of the feeder of the present invention.

[0030] Figure 4 It is a schematic structural diagram of the conveyor of the present invention.

[0031] Figure 5 It is a top view of the conveyor of the present invention.

[0032] In the figure: 1-factory building, 2-bridge crane, 3-vibrating screen, 31-screen body, 32-second support, 33-second steel spring, 34-transmission part, 4-slag pot, 5-hot stewing slag pit, 6-pit cover, 7-exhaust chimney, 9-conveyor, 91-transmission device, 92-frame, 93-roller, 94-vertical roller, 95-screw, 96-annular conveyor belt, 97-material guide trough, 98-magnetic drum component, 10-vibrating feeder, 101-motor bracket, 102-first support, 103-motor, 104-pulley, 105-driver, 106-screen cabinet, 107-first steel spring. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] A steel slag crushing, magnetic separation and recycling system comprises: a plant 1, a bridge crane 2, a vibrating screen 3, a screen body 31, a second support 32, a second steel spring 33, a transmission part 34, a slag pot 4, a hot stewing slag pit 5, a pit cover 6, an exhaust chimney 7, a conveyor 9, a transmission device 91, a frame 92, a roller 93, a vertical roller 94, a screw 95, an endless conveyor belt 96, a material guide trough 97, a magnetic drum component 98, a vibrating feeder 10, a motor bracket 101, a first support 102, a motor 103, a pulley 104, a driver 105, a screen cabinet 106, and a first steel spring 107.

[0035] A bridge crane 2 is installed in the factory building 1. There is a slag tank truck traveling in the factory building 1. A slag tank 4 is placed on the slag tank truck. A hot stewing slag pit 5 is set on the ground of the factory building 1. A pit cover 6 is matched at the hot stewing slag pit 5. An exhaust chimney 7 is connected to one side of the hot stewing slag pit 5.

[0036] The vibrating screen 3 comprises: a screen body 31 , a second support 32 , a second steel spring 33 , and a transmission part 34 ; the second support 32 is provided with the second steel spring 33 , the second steel spring 33 is connected to the screen body 31 , and the screen body 31 is driven by the transmission part 34 .

[0037] The feeder 10 includes: a motor bracket 101, a first support 102, a motor 103, a pulley 104, a driver 105, a screen cabinet 106, and a first steel spring 107; the first support 102 is arranged on the motor bracket 101, the motor 103 is arranged on the motor bracket 101, the first support 102 is arranged on the first steel spring 107, the screen cabinet 106 is arranged on the first steel spring 107, the driver 105 is arranged on the outside of the screen cabinet 106, and the pulley 104 is sleeved on the output shaft of the motor 103 and the output shaft of the driver 105.

[0038] The conveyor 9 includes: a transmission device 91, a frame 92, a roller 93, a vertical roller 94, a screw 95, an annular conveyor belt 96, a material guide trough 97, and a magnetic roller component 98; a transmission device 91 is arranged on one side of the frame 92, a roller 93 is arranged on the frame 92, and the vertical roller 94 is arranged on the frame 92 by means of screws 95, and magnetic roller components 98 are arranged at both ends of the frame 92, an output shaft at one end of the transmission device 91 is connected to a magnetic roller component 98, an annular conveyor belt 96 is arranged between the magnetic roller components 98, and both ends of the roller 93 are arranged between the annular conveyor belt 96.

[0039] The working process of slag crushing and magnetic separation recycling is as follows: the slag is loaded in a slag pot 4, which is placed on a slag pot truck, which drives into the factory building 1, and the slag pot 4 on the slag pot truck is used by the bridge crane 2 to pour the slag in the slag pot 4 into the hot stewing slag pit 5, the pit cover 6 of the hot stewing slag pit 5 is matched, and the exhaust chimney 7 can discharge the flue gas; after hot stewing, it is transported by a dump truck, and the slag is transported to the screening place for screening. The screening will be fed by a feeder 10, and the large pieces of slag will be crushed. The vibrating screen 3 is used for screening, and the screened slag is placed on the screen body 31. After the screening is transmitted by the conveyor 9, it is subjected to magnetic separation treatment, and then rod milling is performed. The magnetic separation process obtains 5 kinds of particle size products: scrap steel, impurities, slag powder (0-10mm), slag steel (≥3mm), and powder tailings (0-10mm).

[0040] Although the present invention is described herein with reference to a number of illustrative embodiments of the present invention, it will be appreciated that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the present disclosure, drawings, and claims, a variety of variations and modifications may be made to the components and / or layout of the subject combination layout. In addition to the variations and modifications made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A steel slag crushing and magnetic separation recycling system, characterized by: include: Factory building (1), bridge crane (2), slag stewing pit (5), pit cover (6), exhaust chimney (7); A bridge crane (2) is arranged in the factory building (1), and a hot slag pit (5) is arranged on the ground of the factory building (1); The hot stewing slag pit (5) is configured as a cavity structure with an opening at the top, a pit cover (6) is matched with the opening top of the hot stewing slag pit (5), and an exhaust chimney (7) is connected to one side of the hot stewing slag pit (5).

2. A steel slag crushing and magnetic separation recycling system according to claim 1, characterized in that: Also includes a vibrating screen (3); The vibrating screen (3) comprises: a screen body (31), a second support (32), a second steel spring (33), and a transmission part (34); The second support (32) is connected to the screen body (31) via a second steel spring (33), and the screen body (31) is driven by a transmission part (34).

3. The steel slag crushing and magnetic separation recycling system according to claim 1 is characterized in that: Also includes a feeder (10); The feeder (10) comprises: a motor bracket (101), a first support (102), a motor (103), a pulley (104), a driver (105), a screen cabinet (106), and a first steel spring (107); A first support (102) and a motor (103) are arranged on the motor bracket (101); The first support (102) is connected to the screen cabinet (106) via a first steel spring (107), and a driver (105) is provided on the outside of the screen cabinet (106); The belt pulley (104) is sleeved on the output shaft of the motor (103) and the output shaft of the driver (105).

4. The steel slag crushing and magnetic separation recycling system according to claim 1 is characterized in that: Also includes a conveyor (9); The conveyor (9) comprises: a transmission device (91), a frame (92), a roller (93), a vertical roller (94), a screw (95), an endless conveyor belt (96), a material guide trough (97), and a magnetic roller component (98); A transmission device (91) is arranged on one side of the frame (92), a supporting roller (93) is arranged on the frame (92), and a vertical roller (94) is arranged on the frame (92) by means of screws (95); Magnetic roller components (98) are arranged at both ends of the frame (92), and an annular conveyor belt (96) is arranged between the magnetic roller components (98).

5. The steel slag crushing and magnetic separation recycling system according to claim 4 is characterized in that: An output shaft at one end of the transmission device (91) is drivingly connected to a magnetic roller component (98).

6. The steel slag crushing and magnetic separation recycling system according to claim 4 is characterized in that: Both ends of the support roller (93) are arranged between the annular conveyor belt (96).

7. The steel slag crushing and magnetic separation recycling system according to claim 1 is characterized in that: A slag tank truck is traveling in the factory building (1), and a slag tank (4) is placed on the slag tank truck.

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