A steel slag pretreatment device capable of increasing iron recovery rate

Abstract

The present disclosure relates to the technical field of steel slag processing, and an embodiment of the present disclosure provides a steel slag pretreatment device capable of increasing iron recovery, which comprises a base, a servo motor is fixedly installed at the top right rear of the base, in the present disclosure, through the servo motor, the rotating shaft, the long rod and the movable rod, the servo motor is started by the operator, the rotating shaft and the long rod are rotated, the movable rod moves the whole protective cover, the connecting rod and the whole box body to the right, then the servo motor is moved again by the operator, the rotating shaft and the long rod return to the initial state, the whole protective cover drives the connecting rod and the whole box body to move to the left, and the carbon powder dry ball in the box body can be uniformly arranged on the top end of the stainless steel fine sieve plate through the above technical solution, and the technical problem of lack of carbon powder dry ball feeding in the related art is solved.

Description

Technical Field

[0001] The embodiments of this disclosure relate to the field of steel slag processing technology, and more specifically, to a steel slag pretreatment device that can increase iron recovery rate. Background Technology

[0002] Steel slag is an industrial waste produced during the iron and steel smelting process. It is mainly composed of oxides such as calcium, iron, and silicon. It has the characteristics of high strength and good wear resistance. It can be recycled and reused as road base material, cement admixture, etc., to achieve resource recycling.

[0003] Currently, operators frequently use pretreatment devices when processing steel slag. While existing pretreatment devices possess basic slag-sealing functions, there is still room for improvement. Carbon dry balls act as a reducing agent during the slag-sealing process, effectively inhibiting further oxidation of iron oxides and promoting iron reduction. However, existing pretreatment devices lack a dedicated carbon dry ball dispensing structure before slag searing, making it impossible to accurately and evenly add carbon dry balls to the steel slag in the initial stage of searing. This reduces the efficiency of the iron oxidation-reduction reaction, hindering the full reduction and recovery of iron from the steel slag. Consequently, the iron recovery rate decreases, resulting in the loss of a large amount of iron resources with the waste slag, leading to resource waste, increased production costs for enterprises, and adversely affecting resource recovery in steel slag treatment. Therefore, improvements are necessary. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a steel slag pretreatment device that can increase iron recovery rate, and solve the technical problem of lack of carbon powder dry ball feeding in related technologies.

[0005] According to one aspect, at least one embodiment of this disclosure provides a steel slag pretreatment device that can increase iron recovery rate, including a base, a servo motor fixedly installed at the rear of the right side of the top of the base, a rotating shaft fixedly sleeved at the other end of the output shaft of the servo motor, a long rod fixedly sleeved on the outer surface of the rotating shaft, a movable rod hinged to the left end of the long rod, a protective cover hinged to the left end of the movable rod, the bottom end of the protective cover being movably connected to the top of the base, a connecting rod movably installed at the top of the protective cover, a housing fixedly installed at the other end of the connecting rod, a stepper motor fixedly installed inside the protective cover, a round shaft fixedly sleeved at the other end of the output shaft of the stepper motor, and the top end of the round shaft being fixedly connected to the bottom end of the connecting rod.

[0006] As a preferred embodiment of this utility model, a feed inlet is fixedly installed inside the top of the box, and the top of the feed inlet passes through the box and extends to the outside of the top of the box.

[0007] As a preferred technical solution of this utility model, a drive motor is fixedly installed at the bottom right side of the back of the box, and a rotating shaft is fixedly sleeved at the other end of the output shaft of the drive motor. The front of the rotating shaft extends into the inner cavity of the box and a baffle is fixedly sleeved on its outer surface.

[0008] As a preferred embodiment of this utility model, the bottom end of the protective cover is fixedly connected to a limiting block located inside the base, and the outer surface of the limiting block is movably connected to the interior of the base.

[0009] As a preferred technical solution of this utility model, a connecting frame is fixedly connected to the left side of the top of the base, and a hydraulic cylinder is fixedly installed on the right side of the top of the connecting frame. The bottom end of the hydraulic cylinder passes through the connecting frame and extends to the outside of the top of the inner surface of the connecting frame and is fixedly connected to a sealing cover. A rubber pad is fixedly connected to the top of the inner surface of the sealing cover.

[0010] As a preferred embodiment of this utility model, an exhaust valve is fixedly installed inside the top of the sealing cover in both the front and rear directions, and the top of the exhaust valve passes through the sealing cover and extends to the outside of the top of the sealing cover.

[0011] As a preferred embodiment of this utility model, a frame is fixedly installed on the left side of the top of the base, located directly below the sealing cover. A stainless steel fine screen plate is movably connected to the rear of the inner surface of the frame. The front of the stainless steel fine screen plate extends into the interior of the front of the frame. A handle is fixedly connected to the front of the stainless steel fine screen plate. A water inlet is fixedly connected to the interior of the bottom of the frame. The other end of the water inlet passes through the frame and the base in sequence and extends to the exterior of the front of the base. A discharge port is fixedly installed at the lower interior of the back of the frame. The back of the discharge port passes through the frame and extends to the exterior of the back of the frame.

[0012] As a preferred embodiment of this utility model, guide blocks located inside the left and right sides of the stainless steel fine sieve plate are fixedly connected to both sides of the frame, and the outer surface of the guide blocks is movably connected to the interior of the frame.

[0013] As a preferred embodiment of this utility model, round blocks are fixedly connected to the left and right sides below the front of the frame, and short blocks are movably installed on the outer surface of the round blocks. The back of the short blocks are movably connected to the front of the frame and the stainless steel fine screen plate, respectively.

[0014] As a preferred technical solution of this utility model, threaded shafts are threadedly sleeved on both the left and right sides of the inside of the front of the stainless steel fine screen plate. The front of the threaded shaft passes through the stainless steel fine screen plate and the short block in sequence and extends to the outside of the front of the short block, and the outer surface is movably connected to the inside of the short block.

[0015] The beneficial effects of the embodiments disclosed herein are as follows: 1. In this disclosure, by setting up a servo motor, a rotating shaft, a long rod, and a movable rod, the operator starts the servo motor, which causes the rotating shaft and the long rod to rotate. This causes the movable rod to pull the entire protective cover, the connecting rod, and the entire box to move to the right. Then, the operator moves the servo motor again, which causes the rotating shaft and the long rod to return to their initial state. This causes the entire protective cover to drive the connecting rod and the entire box to move to the left. This process is repeated, which allows the carbon powder dry balls inside the box to be evenly spread on the top of the stainless steel fine screen plate, thereby improving the subsequent iron oxidation reaction and increasing the iron recovery rate.

[0016] 2. In this disclosure, by setting up a stainless steel fine screen plate, a round block, a short block, and a threaded shaft, when the stainless steel fine screen plate needs to be cleaned, the operator rotates the threaded shaft, causing one end of the threaded shaft to disengage from the inside of the stainless steel fine screen plate, thereby releasing the fixing effect on the stainless steel fine screen plate. Then, the operator rotates the short block, causing the back of the short block to separate from the front of the stainless steel fine screen plate. Then, the operator can pull the stainless steel fine screen plate outward from the inside of the frame using the handle, thereby performing the cleaning operation. This eliminates the need for the operator to use corresponding tools to disassemble the stainless steel fine screen plate, bringing convenience to the operator's actual use. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the base structure in one embodiment of the present disclosure; Figure 2 for Figure 1 A cross-sectional view of the front of the base in the embodiment; Figure 3 for Figure 1 A cross-sectional view of the side of the base in the embodiment; Figure 4 for Figure 1 A cross-sectional view of the side of the housing in the embodiment; Figure 5 for Figure 1 A cross-sectional view of the top of the frame in the embodiment.

[0019] In the diagram: 1. Base; 2. Servo motor; 3. Rotating shaft; 4. Long rod; 5. Movable rod; 6. Protective cover; 7. Connecting rod; 8. Box body; 9. Feed inlet; 10. Drive motor; 11. Rotating shaft; 12. Baffle; 13. Stepper motor; 14. Round shaft; 15. Limit block; 16. Connecting frame; 17. Hydraulic cylinder; 18. Sealing cover; 19. Rubber pad; 20. Exhaust valve; 21. Frame body; 22. Stainless steel fine screen plate; 23. Handle; 24. Guide block; 25. Round block; 26. Short block; 27. Threaded shaft; 28. Water inlet; 29. ​​Discharge outlet. Detailed Implementation

[0020] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0021] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0022] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0023] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] like Figures 1-5 As shown, this embodiment of the present disclosure illustrates a steel slag pretreatment device that can increase iron recovery rate. It includes a base 1, a servo motor 2 fixedly mounted on the rear right side of the top of the base 1, a rotating shaft 3 fixedly sleeved at the other end of the output shaft of the servo motor 2, a long rod 4 fixedly sleeved on the outer surface of the rotating shaft 3, a movable rod 5 hinged to the left end of the long rod 4, a protective cover 6 hinged to the left end of the movable rod 5, the bottom end of the protective cover 6 movably connected to the top of the base 1, a connecting rod 7 movably mounted on the top of the protective cover 6, a housing 8 fixedly mounted at the other end of the connecting rod 7, a stepper motor 13 fixedly mounted inside the protective cover 6, a round shaft 14 fixedly sleeved at the other end of the output shaft of the stepper motor 13, and the top end of the round shaft 14 fixedly connected to the bottom end of the connecting rod 7.

[0027] When the operator starts the stepper motor 13, the connecting rod 7 will cause the housing 8 to rotate as a whole. The protective cover 6 is a breathable protective cover, which can effectively prevent the stepper motor 13 from being damaged due to heat dissipation problems.

[0028] In some examples, a feed inlet 9 is fixedly installed inside the top of the housing 8, with the top of the feed inlet 9 passing through the housing 8 and extending to the outside of the top of the housing 8.

[0029] The design of the feed inlet 9 allows operators to put dry toner pellets into the housing 8 through the feed inlet 9.

[0030] In some examples, a drive motor 10 is fixedly installed at the bottom right side of the back of the housing 8, and a rotating shaft 11 is fixedly sleeved at the other end of the output shaft of the drive motor 10. The front of the rotating shaft 11 extends into the inner cavity of the housing 8 and a baffle 12 is fixedly sleeved on its outer surface.

[0031] When the baffle 12 is parallel to the top of the inner surface of the box 8, it can block the internal mixture. When the drive motor 10 drives the baffle 12 to rotate to an inclined state through the rotating shaft 11, it can control the mixture to fall slowly and adapt to the subsequent feeding rhythm.

[0032] In some examples, the bottom of the protective cover 6 is fixedly connected to a limiting block 15 located inside the base 1, and the outer surface of the limiting block 15 is movably connected to the interior of the base 1.

[0033] Due to the design of the limiting block 15, the movement trajectory of the protective cover 6 and the box 8 can be restricted, ensuring accurate positioning during material feeding and preventing material spillage.

[0034] In some examples, a connecting frame 16 is fixedly connected to the left side of the top of the base 1, and a hydraulic cylinder 17 is fixedly installed on the right side of the top of the connecting frame 16. The bottom end of the hydraulic cylinder 17 passes through the connecting frame 16 and extends to the outside of the top of the inner surface of the connecting frame 16 and is fixedly connected to a sealing cover 18. A rubber pad 19 is fixedly connected to the top of the inner surface of the sealing cover 18.

[0035] The design of the rubber gasket 19 improves the sealing performance during subsequent operations.

[0036] In some examples, an exhaust valve 20 is fixedly installed inside the top of the sealing cover 18 in both the front and rear directions, with the top of the exhaust valve 20 passing through the sealing cover 18 and extending to the outside of the top of the sealing cover 18.

[0037] The design of the two exhaust valves 20 enables timely discharge of water vapor during subsequent operations.

[0038] In some examples, a frame 21 is fixedly installed on the left side of the top of the base 1, located directly below the sealing cover 18. A stainless steel fine screen plate 22 is movably connected to the rear of the inner surface of the frame 21. The front of the stainless steel fine screen plate 22 extends into the interior of the front of the frame 21. A handle 23 is fixedly connected to the front of the stainless steel fine screen plate 22. A water inlet 28 is fixedly connected to the interior of the bottom of the frame 21. The other end of the water inlet 28 passes through the frame 21 and the base 1 in sequence and extends to the exterior of the front of the base 1. An outlet 29 is fixedly installed on the lower interior of the back of the frame 21. The back of the outlet 29 passes through the frame 21 and extends to the exterior of the back of the frame 21.

[0039] The design of the handle 23 allows the operator to pull the stainless steel fine screen plate 22 forward from inside the frame 21 using the handle 23.

[0040] In some examples, guide blocks 24 located inside the left and right sides of the frame 21 are fixedly connected to both sides of the stainless steel fine screen plate 22, and the outer surface of the guide blocks 24 is movably connected to the inside of the frame 21.

[0041] The design of the two guide blocks 24 provides excellent guidance for the movement of the stainless steel fine screen plate 22.

[0042] In some examples, round blocks 25 are fixedly connected to the left and right sides of the lower front of the frame 21, and short blocks 26 are movably installed on the outer surface of the round blocks 25. The back of the short blocks 26 are movably connected to the front of the frame 21 and the stainless steel fine screen plate 22, respectively.

[0043] When the back of the short block 26 is located on the front of the stainless steel fine screen plate 22, it will have a pre-fixing effect on the stainless steel fine screen plate 22.

[0044] In some examples, threaded shafts 27 are threadedly connected to the left and right sides of the inside of the front of the stainless steel fine screen plate 22. The front of the threaded shaft 27 passes through the stainless steel fine screen plate 22 and the short block 26 in sequence and extends to the outside of the front of the short block 26, and the outer surface is movably connected to the inside of the short block 26.

[0045] When the threaded shaft 27 is located inside the stainless steel fine screen plate 22, it will have a fixing effect on the stainless steel fine screen plate 22.

[0046] Working principle and usage process of this utility model: First, the operator feeds carbon powder pellets into the housing 8 through the feed inlet 9. Then, the stepper motor 13 is started, driving the circular shaft 14 to rotate the connecting rod 7. This causes the connecting rod 7 to pull the housing 8 to move directly above the frame 21. Next, the operator simultaneously starts the drive motor 10 and the servo motor 2. After the drive motor 10 starts running, the rotating shaft 11 will drive the baffle 12 to rotate, causing the baffle 12 to switch to an inclined state. The carbon powder pellets in the housing 8 will then fall to the top of the stainless steel fine screen plate 22. The servo motor 2 will then drive the rotating shaft 3 and the long rod 4 to rotate, causing the movable rod 5 to pull the protective cover 6, the connecting rod 7, and the housing 8 to move to the right. After that, the servo motor 2 is started again, causing the rotating shaft 3 and the long rod 4 to reset, which in turn causes the protective cover 6, the connecting rod 7, and the housing 8 to move to the left. Through the above reciprocating action, the carbon powder pellets in the housing 8 can be evenly distributed on the top of the stainless steel fine screen plate 22, laying the foundation for improving the iron oxidation reaction efficiency and increasing the iron recovery rate in the subsequent slag-sealing operation.

[0047] After the carbon powder dry pellets are fed, the operator restarts the stepper motor 13, causing the circular shaft 14 to drive the connecting rod 7 and the box 8 to rotate as a whole, moving the box 8 away from the top of the frame 21. Then, the hot steel slag is loaded into the frame 21, and the hydraulic cylinder 17 is started to drive the sealing cover 18 to move down until the top of the inner surface of the sealing cover 18 is in contact with the top of the frame 21, and the rubber gasket 19 is embedded in the frame 21, completing the sealing operation of the frame 21. At this time, the operator connects and fixes the water supply pipe and the water pumping pipe to one end of the water inlet 28 and the outlet 29, respectively. Water gradually and uniformly contacts the steel slag from the bottom of the frame 21 through the water inlet 28. The water vapor generated during the slag curing process can be discharged by opening the exhaust valve 20. The wastewater and mud generated fall into the bottom of the inner cavity of the frame 21 through the stainless steel fine screen plate 22 and are finally pumped out through the outlet 29.

[0048] Finally, when the stainless steel fine screen plate 22 needs to be cleaned after long-term use to prevent clogging, the operator can rotate the threaded shaft 27 to detach one end from the stainless steel fine screen plate 22, thereby releasing the fixation of the screen plate. Then, rotate the short block 26 to separate its back from the front of the stainless steel fine screen plate 22. Finally, use the handle 23 to pull the stainless steel fine screen plate 22 out of the frame 21 for cleaning. This design allows the stainless steel fine screen plate 22 to be disassembled without the need for special tools, greatly facilitating the operator's actual work.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A steel slag pretreatment device that can increase iron recovery rate, comprising a base (1), characterized in that: A servo motor (2) is fixedly installed at the rear right side of the top of the base (1). A rotating shaft (3) is fixedly sleeved at the other end of the output shaft of the servo motor (2). A long rod (4) is fixedly sleeved on the outer surface of the rotating shaft (3). A movable rod (5) is hinged to the left end of the long rod (4). A protective cover (6) is hinged to the left end of the movable rod (5). The bottom end of the protective cover (6) is movably connected to the top of the base (1). A connecting rod (7) is movably installed at the top of the protective cover (6). A housing (8) is fixedly installed at the other end of the connecting rod (7). A stepper motor (13) is fixedly installed inside the protective cover (6). A round shaft (14) is fixedly sleeved at the other end of the output shaft of the stepper motor (13). The top end of the round shaft (14) is fixedly connected to the bottom end of the connecting rod (7).

2. The steel slag pretreatment device for increasing iron recovery rate according to claim 1, characterized in that: The top of the box (8) is fixedly installed with a feed inlet (9), the top of which passes through the box (8) and extends to the outside of the top of the box (8).

3. The steel slag pretreatment device for increasing iron recovery rate according to claim 1, characterized in that: A drive motor (10) is fixedly installed at the bottom right side of the back of the housing (8). A rotating shaft (11) is fixedly sleeved at the other end of the output shaft of the drive motor (10). The front of the rotating shaft (11) extends into the inner cavity of the housing (8) and a baffle (12) is fixedly sleeved on its outer surface.

4. A steel slag pretreatment device for increasing iron recovery rate according to claim 1, characterized in that: The bottom end of the protective cover (6) is fixedly connected to a limiting block (15) located inside the base (1), and the outer surface of the limiting block (15) is movably connected to the interior of the base (1).

5. A steel slag pretreatment device for increasing iron recovery rate according to claim 1, characterized in that: A connecting frame (16) is fixedly connected to the left side of the top of the base (1), and a hydraulic cylinder (17) is fixedly installed on the right side of the top of the connecting frame (16). The bottom end of the hydraulic cylinder (17) passes through the connecting frame (16) and extends to the outside of the top of the inner surface of the connecting frame (16) and is fixedly connected to a sealing cover (18). A rubber pad (19) is fixedly connected to the top of the inner surface of the sealing cover (18).

6. A steel slag pretreatment device for increasing iron recovery rate according to claim 5, characterized in that: An exhaust valve (20) is fixedly installed inside the top of the sealing cover (18) in both the front and rear directions. The top of the exhaust valve (20) passes through the sealing cover (18) and extends to the outside of the top of the sealing cover (18).

7. A steel slag pretreatment device for increasing iron recovery rate according to claim 1, characterized in that: A frame (21) is fixedly installed on the left side of the top of the base (1) and located directly below the sealing cover (18). A stainless steel fine screen plate (22) is movably connected to the rear of the inner surface of the frame (21). The front of the stainless steel fine screen plate (22) extends to the inside of the front of the frame (21). A handle (23) is fixedly connected to the front of the stainless steel fine screen plate (22). A water inlet (28) is fixedly connected to the inside of the bottom of the frame (21). The other end of the water inlet (28) passes through the frame (21) and the base (1) in sequence and extends to the outside of the front of the base (1). A drain outlet (29) is fixedly installed at the bottom of the back of the frame (21). The back of the drain outlet (29) passes through the frame (21) and extends to the outside of the back of the frame (21).

8. A steel slag pretreatment device for increasing iron recovery rate according to claim 7, characterized in that: The stainless steel fine sieve plate (22) is fixedly connected to guide blocks (24) located inside the left and right sides of the frame (21), and the outer surface of the guide blocks (24) is movably connected to the inside of the frame (21).

9. A steel slag pretreatment device for increasing iron recovery rate according to claim 7, characterized in that: Round blocks (25) are fixedly connected to the left and right sides of the front of the frame (21). Short blocks (26) are movably installed on the outer surface of the round blocks (25). The back of the short blocks (26) is movably connected to the front of the frame (21) and the stainless steel fine screen plate (22).

10. A steel slag pretreatment device for increasing iron recovery rate according to claim 7, characterized in that: The stainless steel fine screen plate (22) has threaded shafts (27) threaded on both the left and right sides of the front interior. The front of the threaded shafts (27) passes through the stainless steel fine screen plate (22) and the short block (26) in sequence and extends to the outside of the front of the short block (26), and the outer surface is movably connected to the inside of the short block (26).

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