Recycling device for LF refining slag

Abstract

The utility model discloses a recycling device for LF (ladle furnace) refining slag, and relates to the technical field of iron slag recycling, an impact crushing barrel is clamped in the middle of the side end of a bearing fixing frame, impact hydraulic cylinders are symmetrically fixed at two ends of the bearing fixing frame, and an impact supporting plate is fixed at one ends of the two impact hydraulic cylinders; limiting electric push rods are symmetrically clamped to the top end of the bearing fixing frame, limiting stop blocks are fixed to the top ends of the two limiting electric push rods, a cutting treatment barrel is fixed to the middle of the top end of the bearing fixing frame, a fixed transmission box is fixed to the top end of the cutting treatment barrel, and a crushing cutter is installed on an output shaft of the fixed transmission box. Transmission motors are installed at the top end of the cutting treatment barrel, one end of the fixed supporting frame corresponding to the separation fixing box and the bottom end of the separation fixing box through motor bases, multiple sets of crushing separation and screening treatment are mutually matched and linked, repeated carrying treatment is not needed, the treatment speed is effectively increased, dust is reduced through a sealing component, and the environment is protected. And the stability of the working environment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of iron slag recovery, in particular to a device for recycling LF refining slag. Background Technique

[0002] LF refining slag refers to the waste slag generated during the steel production process, especially after converter steelmaking, during the use of electric arc furnaces or secondary refining processes. This slag is mainly composed of unreacted ores, furnace charges, and other impurities, often containing iron, oxides, and other alloy elements. Generally, crushing equipment and screening equipment are used to recover the recyclable materials in the waste slag.

[0003] However, during the current screening and separation, due to the separate treatment of crushing and screening, repeated handling and collection are required during the treatment, which greatly affects the treatment efficiency. Moreover, during independent operation, a large amount of dust is generated during crushing and screening, which greatly affects the safety of the production environment. Content of the Utility Model

[0004] The utility model provides a device for recycling LF refining slag, which can effectively solve the problems raised in the above background technique. During the current screening and separation, due to the separate treatment of crushing and screening, repeated handling and collection are required during the treatment, which greatly affects the treatment efficiency. Moreover, during independent operation, a large amount of dust is generated during crushing and screening, which greatly affects the safety of the production environment.

[0005] To achieve the above object, the utility model provides the following technical solution: A device for recycling LF refining slag, including a fixed support frame, two ends of the inner side of the fixed support frame are symmetrically fixed with lifting hydraulic cylinders, the tops of a plurality of the lifting hydraulic cylinders are fixed with a load-bearing fixed frame, a processing component is arranged at the top of the fixed support frame, and the processing component includes an impact crushing barrel, an impact hydraulic cylinder, an impact support plate, a limit electric push rod, a limit blocking block, a cutting processing barrel, a fixed transmission box, a crushing knife, a separation fixed box, a transmission motor, a separation disc, an electromagnetic fixed block, a blanking fixed pipe, and a limiting valve;

[0006] In the middle of the side end of the load-bearing fixing frame, an impact crushing barrel is clamped. At both ends of the load-bearing fixing frame, impact hydraulic cylinders are symmetrically fixed. At one end of the two impact hydraulic cylinders, an impact support plate is fixed. At the top of the load-bearing fixing frame, limit electric push rods are symmetrically clamped. At the top of the two limit electric push rods, limit blocking blocks are fixed. In the middle of the top of the load-bearing fixing frame, a cutting treatment barrel is fixed. At the top of the cutting treatment barrel, a fixed transmission box is fixed. At the bottom end of the output shaft of the fixed transmission box, a number of crushing knives are equidistantly installed. In the middle of the top of the fixed support frame, a separation and fixing box is fixed. At the top of the cutting treatment barrel, at one end of the fixed support frame corresponding to the separation and fixing box and at the bottom end of the separation and fixing box, a driving motor is installed through a motor seat. Inside the separation and fixing box, a separation disk is rotatably connected. Inside the separation and fixing box, a number of electromagnetic fixing blocks are equidistantly fixed. At the bottom ends of the impact crushing barrel and the cutting treatment barrel, a blanking fixing pipe is penetrated and connected. At one end of the blanking fixing pipe, a limiting valve is embedded and installed.

[0007] According to the above technical solution, the impact support plate is slidably installed inside the impact crushing barrel, and the limit blocking block is embedded and installed inside the impact crushing barrel.

[0008] According to the above technical solution, the output shaft of one of the driving motors is clamped with the input shaft of the fixed transmission box, and the output shaft of the other driving motor is fixedly clamped with one end of the separation and fixing box.

[0009] According to the above technical solution, the side end of the electromagnetic fixing block is rotationally attached to the side end of the separation disk. The input ends of the impact hydraulic cylinder, the limit electric push rod, the driving motor, the electromagnetic fixing block and the limiting valve are all electrically connected to the output end of an external power source.

[0010] According to the above technical solution, a recycling component is arranged at the top of the fixed support frame. The recycling component includes a slag collection and fixing box, an electric frequency melting furnace, a slag collection box, a positioning electric push rod, a slag collection and treatment box, a slag discharge pipe rack, a fan filter box, a magnetic attraction net box, a lifting electric slide rail and a sliding arc plate;

[0011] At the top of the fixed support frame, slag collection and fixing boxes are symmetrically fixed. In the middle of the top of the fixed support frame, an electric frequency melting furnace is fixed. At the top of one of the slag collection and fixing boxes and at the top of the electric frequency melting furnace, a slag collection box is penetrated and connected. At both ends of the slag collection box, positioning electric push rods are fixed. At the top of the two positioning electric push rods, a slag collection and treatment box is installed. At the side end of the cutting treatment barrel, a slag discharge pipe rack is penetrated and connected. A fan filter box is connected between the slag discharge pipe rack and the slag collection and fixing box. Inside the fan filter box, a number of magnetic attraction net boxes are equidistantly embedded and installed. At the side end of the separation and fixing box, lifting electric slide rails are equidistantly clamped. At one end of the lifting electric slide rail, a sliding arc plate is connected through a slide rail seat.

[0012] According to the above technical solution, the sliding arc plate is slidably sleeved inside the separation and fixing box, and the input ends of the electric frequency melting furnace, the alignment electric push rod, the fan filter box, the magnetic attraction net box, and the lifting electric slide rail are all electrically connected to the output end of an external power supply.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The structure of the present utility model is scientific and reasonable, and it is safe and convenient to use:

[0014] 1. A processing component is provided. The limit electric push rod drives the limit blocking block to be embedded inside the impact crushing barrel, and the impact hydraulic cylinder drives the impact support plate to push the refined slag to continuously impact and crush the crushed slag in cooperation with the limit blocking block, breaking the refined slag into small pieces of crushed slag and pushing the crushed slag into the cutting treatment barrel. The driving motor and the fixed transmission box drive the crushing knife to cut, crush, and impact-crush the crushed slag. By the cooperation of the two groups of crushing, the refined slag is broken into small particle crushed slag, realizing the stable processing operation of the refined slag. The driving motor drives the separation disc to rotate, and with the cooperation of the electromagnetic fixing block, the iron-containing crushed slag is magnetically separated, and the remaining crushed slag falls to the bottom inside the separation and fixing box, realizing the separation treatment of the waste crushed slag and the iron-containing crushed slag, facilitating subsequent recycling treatment. By the cooperation and linkage of multiple groups of crushing, separation, and screening treatments, there is no need for repeated handling, effectively improving the processing speed, and using the sealing components to reduce dust and ensure the stability of the working environment.

[0015] 2. A recycling component is provided. The alignment electric push rod drives the slag collection and treatment box to slide, the lifting electric slide rail drives the sliding arc plate to open the separation and fixing box, and the driving motor drives the separation and fixing box to rotate. The crushed slag respectively enters the slag collection and fixing box and the electric frequency melting furnace along the separation and fixing box, realizing the centralized treatment of waste slag recycling and the direct utilization of iron-containing impurities recycling. The fan filter box and the slag discharge pipe rack extract the crushed slag powder located inside the cutting treatment barrel, and the crushed slag powder enters the magnetic attraction net box through the slag discharge pipe rack and the fan filter box for slag collection inside the fixing box, and then is magnetically separated by the magnetic attraction net box, realizing the separation and recycling of the waste slag. By using two different separation and recycling components to recycle the crushed slag, the recycling and separation of crushed slag with different particle sizes are realized, ensuring the stability of the treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model.

[0017] In the drawings:

[0018] Figure 1 is the three-dimensional structure schematic diagram of the present utility model;

[0019] Figure 2 is the structure schematic diagram of the processing component of the present utility model;

[0020] Figure 3 is a schematic installation structure diagram of the fixed transmission box of the present utility model;

[0021] Figure 4 is a schematic installation structure diagram of the separation and fixing box of the present utility model;

[0022] Figure 5 is a schematic structure diagram of the recycling component of the present utility model;

[0023] Figure 6 is a schematic installation structure diagram of the magnetic adsorption mesh box of the present utility model;

[0024] Reference numerals in the figure: 1, fixed support frame; 2, lifting hydraulic cylinder; 3, load-bearing fixed frame;

[0025] 4, processing component; 401, impact crushing barrel; 402, impact hydraulic cylinder; 403, impact support plate; 404, limit electric push rod; 405, limit blocking block; 406, cutting processing barrel; 407, fixed transmission box; 408, crushing knife; 409, separation and fixing box; 410, transmission motor; 411, separation disc; 412, electromagnetic fixing block; 413, blanking fixed pipe; 414, limiting valve;

[0026] 5, recycling component; 501, slag collection fixed box; 502, electric frequency melting furnace; 503, slag collection box; 504, alignment electric push rod; 505, slag collection processing box; 506, slag discharge pipe rack; 507, fan filter box; 508, magnetic adsorption mesh box; 509, lifting electric slide rail; 510, sliding arc plate. Specific embodiments

[0027] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present utility model, and are not used to limit the present utility model.

[0028] Embodiment: As Figure 1-6 shown, the present utility model provides a technical solution, a device for recycling and reusing LF refining slag, including a fixed support frame 1, lifting hydraulic cylinders 2 symmetrically fixed at both ends inside the fixed support frame 1, a load-bearing fixed frame 3 fixed at the top of multiple lifting hydraulic cylinders 2, a processing component 4 arranged at the top of the fixed support frame 1, and the processing component 4 includes an impact crushing barrel 401, an impact hydraulic cylinder 402, an impact support plate 403, a limit electric push rod 404, a limit blocking block 405, a cutting processing barrel 406, a fixed transmission box 407, a crushing knife 408, a separation and fixing box 409, a transmission motor 410, a separation disc 411, an electromagnetic fixing block 412, a blanking fixed pipe 413, and a limiting valve 414;

[0029] In the middle of the side end of the load-bearing fixed frame 3, an impact crushing barrel 401 is clamped. At both ends of the load-bearing fixed frame 3, impact hydraulic cylinders 402 are symmetrically fixed. At one end of the two impact hydraulic cylinders 402, an impact support plate 403 is fixed. At the top of the load-bearing fixed frame 3, limit electric push rods 404 are symmetrically clamped. At the top of the two limit electric push rods 404, limit blocking blocks 405 are fixed. The impact support plate 403 is slidably installed inside the impact crushing barrel 401, and the limit blocking blocks 405 are embedded inside the impact crushing barrel 401 to achieve stable impact crushing and crush the refined slag. In the middle of the top of the load-bearing fixed frame 3, a cutting treatment barrel 406 is fixed. At the top of the cutting treatment barrel 406, a fixed transmission box 407 is fixed. At the bottom end of the output shaft of the fixed transmission box 407, a number of crushing knives 408 are equidistantly installed. In the middle of the top of the fixed support frame 1, a separation fixed box 409 is fixed. At the top of the cutting treatment barrel 406, one end of the fixed support frame 1 corresponding to the separation fixed box 409 and at the bottom end of the separation fixed box 409, drive motors 410 are installed through motor seats. The output shaft of one of the drive motors 410 is clamped with the input shaft of the fixed transmission box 407, and the output shaft of the other drive motor 410 is fixedly clamped with one end of the separation fixed box 409 to achieve stable transmission and drive the equipment to rotate for treatment. Inside the separation fixed box 409, a separation disk 411 is rotatably connected. Inside the separation fixed box 409, a number of electromagnetic fixing blocks 412 are equidistantly fixed. The side end of the electromagnetic fixing block 412 is rotationally attached to the side end of the separation disk 411 to achieve magnetic separation and ensure the stability of separation. At the bottom ends of the impact crushing barrel 401 and the cutting treatment barrel 406, feeding fixed pipes 413 are connected through. At one end of the feeding fixed pipe 413, a limiting valve 414 is embedded. For the stable operation of the equipment, the input ends of the impact hydraulic cylinders 402, the limit electric push rods 404, the drive motors 410, the electromagnetic fixing blocks 412 and the limiting valve 414 are all electrically connected to the output end of an external power supply.

[0030] At the top of the fixed support frame 1, a recycling component 5 is provided. The recycling component 5 includes a slag collection fixed box 501, an electric frequency melting furnace 502, a slag collection box 503, a positioning electric push rod 504, a slag collection treatment box 505, a slag discharge pipe rack 506, a fan filter box 507, a magnetic attraction net box 508, a lifting electric slide rail 509 and a sliding arc plate 510;

[0031] A slag collecting fixed box 501 is symmetrically fixed on the top of the fixed support frame 1, and an electric frequency hot melting furnace 502 is fixed on the middle part of the top of the fixed support frame 1. A slag collecting box 503 is connected to the top of one of the slag collecting fixed boxes 501 and the top of the electric frequency hot melting furnace 502. Positioning electric push rods 504 are fixed at both ends of the slag collecting box 503. Slag collecting processing boxes 505 are installed on the tops of the two positioning electric push rods 504. A slag discharge pipe rack 506 is connected to the side end of the cutting processing barrel 406. A fan filter box 507 is connected between the slag discharge pipe rack 506 and the slag collecting fixed box 501. The fan filter Several magnetic net boxes 508 are equidistantly embedded and installed on the inner side of the box 507, and a lifting electric slide rail 509 is equidistantly clamped on the side end of the separation and fixed box 409. One end of the lifting electric slide rail 509 is connected to a sliding arc plate 510 through a slide rail seat. The sliding arc plate 510 is slidably sleeved on the inner side of the separation and fixed box 409 to achieve closed movement and ensure discharge switching. For stable operation of the equipment, the input ends of the electric frequency hot melting furnace 502, the positioning electric push rod 504, the fan filter box 507, the magnetic net box 508 and the lifting electric slide rail 509 are all electrically connected to the output end of the external power supply.

[0032] The working principle and use process of the utility model are as follows: when recycling LF refined slag, the staff puts the cooled refined slag into the impact crushing barrel 401, and the limited electric push rod 404 drives the limited blocking block 405 to be embedded into the inner side of the impact crushing barrel 401, and the impact hydraulic cylinder 402 drives the impact support plate 403 to push the refined slag along the impact crushing barrel 401 to the position of the limited blocking block 405, and the impact support plate 403 continuously impacts and cooperates with the limited blocking block 405 to perform blocking impact crushing processing, and the refined slag is broken into After the small pieces of slag are crushed, the fixed tube 413 is opened by the limiting valve 414, and the impact support plate 403 is driven by the impact hydraulic cylinder 402 to push the slag along the fixed tube 413 into the inner side of the cutting and processing barrel 406. During the feeding process, the transmission motor 410 and the fixed transmission box 407 drive the crushing knife 408 to rotate at a high speed, and the crushing knife 408 is used to continuously cut and crush the slag and impact and crush it. The two groups of crushing cooperate with each other to crush the refined slag into small particles of slag, so as to achieve a steady processing operation of the refined slag;

[0033] During the crushing process, small particles continue to fall along the cutting processing barrel 406 and the feeding fixed pipe 413 to the top of the separation disk 411 inside the separation fixed box 409, and the transmission motor 410 drives the separation disk 411 to rotate, and the separation disk 411 drives the crushed slag to continue to rotate and push it down. At this time, the electromagnetic fixing block 412 is energized, and the electromagnetic fixing block 412 is used to magnetically absorb the crushed slag. The iron-containing part of the crushed slag is magnetically absorbed by the electromagnetic fixing block 412. At this time, the remaining crushed slag falls along the separation disk 411 to the bottom end of the inner side of the separation fixed box 409, thereby realizing the separation of the waste crushed slag and the iron crushed slag, which is convenient for subsequent recycling.

[0034] After the separation is completed, the drive motor 410 drives the separation and fixing box 409 to rotate 45 degrees. The alignment electric push rod 504 drives the slag collection and treatment box 505 to move along the slag collection box 503. The lifting electric slide rail 509 drives the sliding arc plate 510 to slide and open the separation and fixing box 409. At this time, the waste slag enters the inner side of one of the slag collection and fixing boxes 501 along the separation and fixing box 409, realizing the centralized treatment of waste slag recycling. After the waste discharge is completed, the electromagnetic fixing block 412 is closed. At this time, the iron-containing crushed slag falls to the bottom end of the separation and fixing box 409. The alignment electric push rod 504 drives the slag collection and treatment box 505 to reset. The drive motor 410 drives the separation and fixing box 409 to rotate 45 degrees again. Then, the alignment electric push rod 504 located at the position of the electric frequency melting furnace 502 drives the slag collection and treatment box 505 to fit to the side end of the separation and fixing box 409. The lifting electric slide rail 509 drives the sliding arc plate 510 to move again, and cooperates with the drive motor 410 to drive the separation disc 411 to push the metal crushed slag into the inner side of the slag collection and treatment box 505 along the separation and fixing box 409. The crushed slag enters the inner side of the electric frequency melting furnace 502 along the slag collection and treatment box 505 and the slag collection box 503, realizing the electric heating and melting treatment. When the cutting treatment barrel 406 cuts the crushed slag, the blower filter box 507 and the slag discharge pipe rack 506 are used to extract the crushed slag powder generated by cutting inside the cutting treatment barrel 406. The crushed slag powder enters the inner side of the blower filter box 507 along the slag discharge pipe rack 506. The magnetic adsorption net box 508 is used to magnetically separate the crushed slag. The iron-containing crushed slag remains on the side end of the magnetic adsorption net box 508, and the waste crushed slag falls into the inner side of the slag collection and fixing box 501, realizing the separation and recycling of the waste slag.

[0035] Finally, it should be noted that the above are only preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A LF refining slag recycling device, comprising a fixed support frame (1), characterized in that: The fixed support frame (1) has lifting hydraulic cylinders (2) symmetrically fixed at both ends of the inner side, and a load-bearing fixed frame (3) is fixed on the top of the plurality of lifting hydraulic cylinders (2). A processing assembly (4) is arranged on the top of the fixed support frame (1), and the processing assembly (4) comprises an impact crushing barrel (401), an impact hydraulic cylinder (402), an impact support plate (403), a limit electric push rod (404), a limit blocking block (405), a cutting processing barrel (406), a fixed transmission box (407), a crushing knife (408), a separation fixed box (409), a transmission motor (410), a separation disc (411), an electromagnetic fixed block (412), a material discharge fixed pipe (413) and a limiting valve (414); An impact crushing barrel (401) is clamped in the middle of the side end of the load-bearing fixed frame (3), impact hydraulic cylinders (402) are symmetrically fixed at both ends of the load-bearing fixed frame (3), and impact support plates (403) are fixed at one end of the two impact hydraulic cylinders (402). A limited electric push rod (404) is symmetrically clamped at the top of the load-bearing fixed frame (3), and limited blocking blocks (405) are fixed at the top of the two limited electric push rods (404). A cutting processing barrel (406) is fixed in the middle of the top of the load-bearing fixed frame (3), and a fixed transmission box (407) is fixed at the top of the cutting processing barrel (406). A plurality of crushing knives (406) are equidistantly installed at the bottom end of the output shaft of the fixed transmission box (407). 8), a separation fixing box (409) is fixed at the middle of the top of the fixed support frame (1), a transmission motor (410) is installed at the top of the cutting and processing barrel (406), one end of the fixed support frame (1) corresponding to the separation fixing box (409), and the bottom of the separation fixing box (409) through a motor seat, a separation disc (411) is rotatably connected to the inside of the separation fixing box (409), a plurality of electromagnetic fixing blocks (412) are equidistantly fixed to the inside of the separation fixing box (409), the bottom of the impact crushing barrel (401) and the bottom of the cutting and processing barrel (406) are both penetrated and connected with a material discharge fixing pipe (413), and a limiting valve (414) is embedded and installed at one end of the material discharge fixing pipe (413).

2. The LF refined slag recycling device according to claim 1, characterized in that: The impact support plate (403) is slidably mounted on the inner side of the impact crushing barrel (401), and the position limiting blocking block (405) is embedded and mounted on the inner side of the impact crushing barrel (401).

3. The LF refined slag recycling device according to claim 1, characterized in that: The output shaft of one of the transmission motors (410) is clamped with the input shaft of the fixed transmission box (407), and the output shaft of the other transmission motor (410) is fixedly clamped with one end of the separation fixed box (409).

4. The LF refined slag recycling device according to claim 1, characterized in that: The side end of the electromagnetic fixing block (412) is rotatably fitted with the side end of the separation disc (411), and the input ends of the impact hydraulic cylinder (402), the limit electric push rod (404), the transmission motor (410), the electromagnetic fixing block (412) and the limiting valve (414) are all electrically connected to the output end of the external power supply.

5. The LF refined slag recycling device according to claim 1, characterized in that: A recycling assembly (5) is arranged at the top of the fixed support frame (1), and the recycling assembly (5) includes a slag collecting fixed box (501), an electric frequency hot melting furnace (502), a slag collecting box (503), an alignment electric push rod (504), a slag collecting processing box (505), a slag discharge pipe rack (506), a fan filter box (507), a magnetic suction net box (508), a lifting electric slide rail (509) and a sliding arc plate (510); A slag collecting fixed box (501) is symmetrically fixed to the top of the fixed support frame (1), and an electric frequency hot melting furnace (502) is fixed to the middle of the top of the fixed support frame (1). A slag collecting box (503) is connected through the top of one of the slag collecting fixed boxes (501) and the top of the electric frequency hot melting furnace (502). Positioning electric push rods (504) are fixed at both ends of the slag collecting box (503). A slag collecting processing box (505) is installed on the top of the two positioning electric push rods (504). A slag discharge pipe rack (506) is connected through the side end of the cutting processing barrel (406), and a fan filter box (507) is connected between the slag discharge pipe rack (506) and the slag collection fixed box (501). A plurality of magnetic net boxes (508) are equidistantly embedded and installed inside the fan filter box (507). A lifting electric slide rail (509) is equidistantly clamped on the side end of the separation fixed box (409), and one end of the lifting electric slide rail (509) is connected to a sliding arc plate (510) through a slide rail seat.

6. The LF refined slag recycling device according to claim 5, characterized in that: The sliding arc plate (510) is slidably sleeved on the inner side of the separation and fixing box (409), and the input ends of the electric frequency hot melting furnace (502), the positioning electric push rod (504), the fan filter box (507), the magnetic net box (508) and the lifting electric slide rail (509) are all electrically connected to the output end of the external power supply.

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