CN215465181U - Steel slag continuous separation device - Google Patents
Steel slag continuous separation device Download PDFInfo
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- CN215465181U CN215465181U CN202122266143.5U CN202122266143U CN215465181U CN 215465181 U CN215465181 U CN 215465181U CN 202122266143 U CN202122266143 U CN 202122266143U CN 215465181 U CN215465181 U CN 215465181U
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- slag
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Abstract
The utility model discloses a steel slag continuous separation device, which comprises a screening system, a transmission system and a magnetic separation system, wherein the screening system is used for screening steel slag; a vibrating screen is arranged in the screening system, and the steel slag is screened by the vibrating screen; transmission system is used for connecting screening system and magnetic separation system, the slag that will select through screening system transports to magnetic separation system, be equipped with spacing magnetism roller in magnetic separation system, the circular telegram is equipped with on the spacing magnetism roller, the spacing electromagnetic block of outage mutual independence, spacing magnetism roller is rotatory along a certain direction, and by the spacing electromagnetic block of limit switch control at rotatory in-process magnetized and demagnetization, the spacing electromagnetic block after utilizing the magnetization attracts the iron slag, the separation to iron slag and lime-ash is realized from the effect that spacing electromagnetic block drops after the demagnetization. The device can complete the screening and magnetic separation processes at one time through the steel slag continuous separation device with higher integration degree, can realize continuous operation, and has the advantages of small occupied area, short flow and high production efficiency.
Description
Technical Field
The utility model relates to the technical field of steel slag treatment in steel plants, in particular to a separation device for continuous screening and magnetic separation of steel slag.
Background
The steel slag is the most important byproduct in the steel-making process, the quantity is large, the iron content is high, the steel slag yield is generally 10% -15% of the steel yield, the iron content in the steel slag is generally 15% -20%, and the recycling value is extremely high. At present, the common method of steel enterprises is to cool steel slag by adopting the modes of hot stuffiness, hot splashing, air quenching and the like; screening the cooled steel slag, and directly returning the screened large steel slag to the steel-making link; magnetically separating the sieved small-particle steel slag by using a belt magnetic separator, and returning the magnetically separated iron slag to the steel-making link; and (3) crushing the steel slag subjected to magnetic separation in a rod mill, and separating iron slag and ash slag after the crushed steel slag is subjected to magnetic separation twice in a permanent magnet drum.
In the steel slag separation mode, the screening and magnetic separation processes are separately carried out, and a belt conveyor is required to transport the steel slag; when the belt magnetic machine and the permanent magnet drum are used for magnetic separation, the steel slag and the magnetic roller are separated by a belt, the magnetic separation efficiency is low, and the iron slag and the magnetic roller are separated by the tension of the belt, so that the belt is greatly damaged; the mode has the advantages of longer production flow, large occupied plant area, high use cost of the plant, high equipment consumption cost and high labor cost of equipment operators.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects in the prior art, the steel slag continuous separation device can complete screening and magnetic separation processes at one time through the steel slag continuous separation device with higher integration degree, can realize continuous operation, and has the advantages of small occupied area, short flow and high production efficiency.
The technical scheme adopted by the utility model is as follows:
a steel slag continuous separation device comprises a screening system, a transmission system and a magnetic separation system; a vibrating screen is arranged in the screening system, and the steel slag is screened by the vibrating screen; the transmission system is used for connecting the screening system and the magnetic separation system, the steel slag screened by the screening system is transported to the magnetic separation system, a limiting magnetic roller is arranged in the magnetic separation system, limiting electromagnetic blocks which are mutually independent in power-on and power-off are arranged on the limiting magnetic roller, the limiting magnetic roller rotates along a certain direction, the limiting electromagnetic blocks are controlled by a limiting switch to be magnetized and demagnetized in the rotating process, and the separation of the iron slag and the ash slag is realized by utilizing the attraction of the magnetized limiting electromagnetic blocks to the iron slag and the shedding effect of the demagnetized iron slag from the limiting electromagnetic blocks; the ash residue outlet is arranged at the magnetic side of the limiting magnetic roller, and the iron residue outlet is arranged at the demagnetizing side of the limiting magnetic roller.
Furthermore, the limiting magnetic roller comprises a magnetic roller shaft, a magnetic roller bearing and a limiting electromagnetic block; the magnetic roller bearing is sleeved on the magnetic roller shaft; the magnetic roller bearing is driven by the magnetic roller shaft to synchronously rotate, and the limiting electromagnetic block is arranged on the magnetic roller bearing and can be independently electrified to be magnetized and then be demagnetized when power is off.
Further, the magnetic roller bearing is gear-shaped, a magnetic separation part is arranged between adjacent teeth, and a limiting electromagnetic block is arranged at the magnetic separation part.
Further, the screening system comprises a screening bin, a screening slag steel outlet is formed in the side wall of the screening bin, a vibrating screen is inserted into the screening bin from the screening slag steel outlet, and the steel slag screened by the vibrating screen is discharged from a discharge port of the screening bin; and discharging the rest steel slag from a screening steel slag outlet.
Furthermore, a discharging opening of the vibrating screen is provided with a discharging regulating valve, and the discharging speed is uniform and stable by controlling the opening of the discharging regulating valve.
Further, transmission system includes band pulley and the conveyer belt of tensioning on the band pulley, and the one end of conveyer belt is towards the discharge gate of screening feed bin, and the other end extends to magnetic separation system.
Furthermore, a belt wheel on the inlet side of the conveying belt is connected with a driving motor through a transmission device, the driving motor is also connected with a crank-link mechanism through the transmission device, the crank-link mechanism is mechanically connected with the vibrating screen, and the driving motor drives the conveying belt and the vibrating screen to work simultaneously.
Further, a collecting device is arranged at an ash outlet, and the collected ash is input into a rod mill to be crushed and then corresponding magnetic separation work is carried out again.
The utility model has the beneficial effects that:
aiming at the problems of high labor cost, high equipment consumption, large plant use area and the like in the steel slag separation mode adopted by the steel plant at present, the device adopts the design that the vibrating screen is arranged at the position of the feeding hole, so that the screening and magnetic separation processes can be completed at one time, and the steel slag transportation is reduced; conveying the steel slag under the screen to the position above the limiting magnetic roller by using a conveyor belt, contacting the steel slag particles with the limiting magnetic roller in the falling process, and continuously separating iron slag from ash slag by using the characteristics of limiting magnetization and limiting demagnetization of the limiting magnetic roller; the device can continuously work, has small occupied area, short flow and high production efficiency; the use cost, the equipment investment cost and the labor cost of the factory building can be greatly reduced.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic view of a continuous separation apparatus for steel slag according to the present invention;
in the figure, 1, a screening system, 2, a transmission system, 3, a magnetic separation system, 4, a screening slag steel outlet, 5, a crank link mechanism, 6, a screening bin, 7, a vibrating screen, 8, a blanking regulating valve, 9, a conveyor belt, 10, a conveyor belt outlet, 11, a limiting magnetic roller, 12, a magnetic roller shaft, 13, a magnetic roller bearing, 14, a limiting electromagnetic block, 15, an ash outlet, 16, an iron slag outlet, 17 and a driving motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The continuous steel slag separating device shown in fig. 1 and 2 comprises a screening system 1, a conveying system 2 and a magnetic separation system 3; the screening system 1 comprises a screening bin 6, a screening slag steel outlet 4 is arranged on the side wall of the screening bin 6, and a vibrating screen 7 is inserted into the screening bin 6 from the screening slag steel outlet 4; the upper part of the vibrating screen 7 faces to a feed inlet of the screening bin 6, and steel slag to be separated is injected into the screening bin 6 from the feed inlet; the lower part of the vibrating screen 7 faces to the discharge hole of the screening bin 6, the injected steel slag is screened by the vibrating screen 7, and the screened small-particle steel slag is discharged from the discharge hole of the screening bin 6. Preferably, the vibrating screen 7 is arranged obliquely, and large-particle steel slag which cannot pass through the vibrating screen 7 rolls along the oblique surface of the vibrating screen 7 and is discharged from the screening steel slag outlet 4. In order to adjust the blanking speed of the screening bin 6, the blanking adjusting valve 8 is arranged at the discharge port of the screening bin 6, and the blanking speed is uniform and stable by controlling the opening degree of the blanking adjusting valve 8.
The discharge gate of screening feed bin 6 is towards transmission system 2, and transmission system 2 transports the tiny particle slag of screening to magnetic separation system 3, carries out the screening of next stage. The conveying system 2 comprises a belt wheel and a conveying belt 9 tensioned on the belt wheel, one end of the conveying belt 9 faces to a discharge hole of the screening bin, and the other end of the conveying belt extends to the magnetic separation system 3.
The magnetic separation system 3 comprises a magnetic separation cover, the upper part of the magnetic separation cover is provided with a conveyor belt outlet 10, and a limiting magnetic roller 11 is arranged in the magnetic separation cover; the bottom of the magnetic separation cover is provided with an ash outlet 15 and an iron slag outlet 16; the tail end of the conveyor belt 9 extends into the magnetic separation cover from the conveyor belt outlet 10, the screened small-particle steel slag is input into the magnetic separation cover, the input small-particle steel slag is magnetically separated at the limiting magnetic roller 11, and the small-particle steel slag is magnetically separated in the magnetic separation cover and then respectively passes through the ash residue outlet 15 and the iron residue outlet 16. More specifically, the limiting magnetic roller 11 comprises a magnetic roller shaft 12, a magnetic roller bearing 13 and a limiting electromagnetic block 14; the magnetic roller bearing 13 is sleeved on the magnetic roller shaft 12; the magnetic roller shaft 12 is connected with power units such as a motor, the magnetic roller bearing 13 is driven by the magnetic roller shaft 12 to synchronously rotate, and the magnetic roller bearing 13 is made of non-ferromagnetic materials such as aluminum alloy and hard rubber. The magnetic roller bearing 13 is in a gear shape, a magnetic separation part is arranged between adjacent teeth, a limiting electromagnetic block 14 is installed at the magnetic separation part, and each limiting electromagnetic block 14 can be independently electrified to be magnetized and demagnetized after being powered off. The control circuit of the limit electromagnetic block 14 is connected with a power supply through a limit switch, and can control the limit electromagnetic block 14 to be magnetized and demagnetized in the rotating process of the magnetic roller bearing 13.
In this embodiment, the limiting magnetic roller 11 rotates clockwise, the topmost end of the limiting magnetic roller 11 is set to the position a of the limiting switch along the vertical center line, the bottommost end of the limiting magnetic roller 11 is set to the position B of the limiting switch, the limiting electromagnetic block 14 is energized when reaching the position a, and the limiting electromagnetic block 14 is de-energized and degaussed when reaching the position B. The belt outlet 10 is arranged towards the magnetic side of the limit magnet block 14, so that the limit magnet roller 11 is provided with magnetism at the right side in fig. 2 to attract the iron slag of the small-particle steel slag, and the ash slag falls into the ash slag outlet 15 at the bottom of the right side without being attracted. And the limiting electromagnetic block 14 which just attracts the iron slag is demagnetized once rotating to the position B, and the attracted iron slag falls into the iron slag outlet 16 at the bottom of the left side at the moment, so that the magnetic separation process of the steel slag is completed.
In this embodiment, in order to improve the integration of the whole device, the belt pulley on the inlet side of the conveyor belt 9 is power-connected to the driving motor 17 through a transmission device (a structure such as a conveyor belt and a gear), the driving motor 17 is also connected to the crank link mechanism 5 through the transmission device, the crank link mechanism 5 is mechanically connected to the vibrating screen 7, and the driving motor 17 drives the conveyor belt 9 and the vibrating screen 7 to operate simultaneously.
In this embodiment, a collecting device is provided at the ash outlet 15, and the collected ash is fed into the rod mill to be crushed and then the corresponding magnetic separation work is performed again.
The following is further explained in conjunction with the operation of the device:
and S1, cooling the steel slag by hot sealing, hot splashing and other treatment modes, and feeding the cooled steel slag into the device from the feeding hole 6. The vibrating screen 7 is arranged below the feeding hole, the vibrating screen 7 is connected with the crank link mechanism 5, the driving motor (17 drives the crank link mechanism 5 to realize the vibration of the vibrating screen 7. after steel slag enters from the feeding hole 6, the steel slag is screened by the vibrating screen 7, small-particle steel slag falls into a hopper below, and large steel slag is discharged from the screened steel slag outlet 4.
S2, the small steel slag particles in the hopper fall into the conveyor belt 9 through the blanking regulating valve 8, and the blanking speed is uniform and stable by controlling the opening of the blanking regulating valve 8. The conveyor belt 9 is driven by a driving motor 17, and conveys the small-particle steel slag to the position above the limiting magnetic roller 11, so that the small-particle steel slag falls from the outlet 10 of the conveyor belt.
And S3, limiting the clockwise rotation of the magnetic roller 11. Because the limit electromagnetic block 14 is electrified and magnetized when rotating to the position A, and is deenergized and demagnetized when rotating to the position B. Therefore, the fallen small steel slag particles fall into the right side of the center of the limiting magnetic roller 11, and the small steel slag particles slide down along the right side surface of the limiting magnetic roller 11. During the gliding process of the small-particle steel slag, the iron slag is adsorbed on the surface of the limiting electromagnetic block 14 on the limiting magnetic roller (11), and the ash slag naturally falls and is discharged from the ash slag outlet 15. When the limiting electromagnetic block 14 adsorbing the iron slag rotates to the position B, the power is cut off and the magnetic field is removed, the iron slag adsorbed on the surface begins to fall off and is discharged from an iron slag outlet 16, and the continuous separation of the steel slag is realized.
S4, the ash slag separated for the first time has larger granularity because the ash slag is not crushed, and part of the ash slag also contains iron slag which is not separated. And (3) crushing the primarily separated ash slag by a rod mill, and then re-executing the step 2 and the step 3 to separate fine iron slag and ash slag. For better realization of continuous production, two devices can be placed in front and at the back, a rod mill is placed in the middle, and all devices are connected by a belt conveyor to realize continuous separation of screening, magnetic separation, crushing and magnetic separation again.
By using the device to separate the steel slag, compared with the original separation mode, the use cost of a factory building can be reduced by about 50 percent, the equipment investment and maintenance cost can be reduced by about 30 percent, the labor cost can be reduced by 20 to 50 percent, and the comprehensive cost can be reduced by 30 to 40 percent.
The above embodiments are only used for illustrating the design idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention accordingly, and the protection scope of the present invention is not limited to the above embodiments. Therefore, all equivalent changes and modifications made in accordance with the principles and concepts disclosed herein are intended to be included within the scope of the present invention.
Claims (8)
1. The continuous steel slag separating device is characterized by comprising a screening system (1), a transmission system (2) and a magnetic separation system (3); a vibrating screen (7) is arranged in the screening system (1), and the steel slag is screened by the vibrating screen (7); the transmission system (2) is used for connecting the screening system (1) and the magnetic separation system (3), steel slag screened by the screening system (1) is transported to the magnetic separation system (3), a limiting magnetic roller (11) is arranged in the magnetic separation system (3), limiting electromagnetic blocks (14) which are mutually independent in power-on and power-off are arranged on the limiting magnetic roller (11), the limiting magnetic roller (11) rotates along a certain direction, a limiting switch is used for controlling the limiting electromagnetic blocks (14) to be magnetized and demagnetized in the rotating process, and the magnetized limiting electromagnetic blocks (14) are used for attracting iron slag and separating the iron slag from ash slag under the action that the iron slag falls off from the limiting electromagnetic blocks (14); an ash outlet (15) is arranged at the magnetic side of the limit magnetic roller (11), and an iron slag outlet (16) is arranged at the demagnetizing side of the limit magnetic roller (11).
2. The steel slag continuous separation device according to claim 1, wherein the limiting magnetic roller (11) comprises a magnetic roller shaft (12), a magnetic roller bearing (13) and a limiting electromagnetic block (14); the magnetic roller bearing (13) is sleeved on the magnetic roller shaft (12); the magnetic roller bearing (13) is driven by the magnetic roller shaft (12) to synchronously rotate, the magnetic roller bearing (13) is provided with a limit electromagnetic block (14), and the limit electromagnetic block (14) can be independently electrified to be magnetized and is demagnetized when power is cut off.
3. The steel slag continuous separation device according to claim 2, wherein the magnetic roller bearings (13) are gear-shaped, magnetic separation parts are arranged between adjacent teeth, and the magnetic separation parts are provided with limit electromagnetic blocks (14).
4. The steel slag continuous separation device according to claim 1, wherein the screening system (1) comprises a screening bin (6), a screening steel slag outlet (4) is formed in the side wall of the screening bin (6), a vibrating screen (7) is inserted into the screening bin (6) from the screening steel slag outlet (4), and the steel slag screened by the vibrating screen (7) is discharged from a discharge hole of the screening bin (6); the rest steel slag is discharged from a screening steel slag outlet (4).
5. The steel slag continuous separation device according to claim 4, wherein a discharge port of the screening bin (6) is provided with a discharge regulating valve (8), and the discharge speed is uniform and stable by controlling the opening degree of the discharge regulating valve (8).
6. The continuous steel slag separation device according to claim 4, wherein the conveying system (2) comprises a belt wheel and a conveyor belt (9) tensioned on the belt wheel, one end of the conveyor belt (9) faces the discharge opening of the screening silo (6), and the other end extends to the magnetic separation system (3).
7. The continuous separation device for steel slag according to claim 6, wherein the belt wheel on the inlet side of the conveyor belt (9) is connected with the driving motor (17) through a transmission device, the driving motor (17) is also connected with the crank-link mechanism (5) through the transmission device, the crank-link mechanism (5) is mechanically connected with the vibrating screen (7), and the driving motor (17) drives the conveyor belt (9) and the vibrating screen (7) to work simultaneously.
8. The continuous separation device for steel slag according to claim 7, wherein a collecting device is provided at the ash outlet (15), and the collected ash is fed into a rod mill for crushing and then corresponding magnetic separation is performed again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122266143.5U CN215465181U (en) | 2021-09-17 | 2021-09-17 | Steel slag continuous separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122266143.5U CN215465181U (en) | 2021-09-17 | 2021-09-17 | Steel slag continuous separation device |
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| Publication Number | Publication Date |
|---|---|
| CN215465181U true CN215465181U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122266143.5U Active CN215465181U (en) | 2021-09-17 | 2021-09-17 | Steel slag continuous separation device |
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| CN (1) | CN215465181U (en) |
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2021
- 2021-09-17 CN CN202122266143.5U patent/CN215465181U/en active Active
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