A low iron consumption steelmaking plant
By introducing protective and auxiliary reaction components into the steelmaking equipment, the problem of bearing damage caused by slag accumulation during converter steelmaking was solved, achieving long service life of the equipment and efficient iron recovery, thus reducing steelmaking costs.
Patent Information
- Application Number
- CN202521360670.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-06-30
AI Technical Summary
In existing converter steelmaking equipment, during the blowing process, high-temperature liquid steel slag slides down and accumulates between the heat insulation plate and the support ring of the trunnion bearing, causing damage to the trunnion bearing, affecting the equipment life and the continuity of the steelmaking process.
A low-iron-consumption steelmaking device was designed, comprising a protective component and an auxiliary reaction component. The protective component diverts the splashed molten steel through a V-shaped diverter and a wedge-shaped insert to prevent the bearings from being burned. The auxiliary reaction component promotes full contact between molten iron and slag through an electric turntable and agitators, thereby improving the iron recovery rate.
This effectively prevents bearing burn-out, extends equipment lifespan, improves iron recovery rate, reduces steelmaking consumption, and ensures the continuity of the steelmaking process.
Smart Images
Figure CN224678077U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metallurgical equipment technology, specifically to a low-iron-consumption steelmaking equipment. Background Technology
[0002] In the steel industry, the iron consumption level in the steelmaking process directly affects the economic benefits and sustainable development capabilities of enterprises. With rising raw material costs, the development of low-iron-consumption steelmaking equipment has become an urgent need for the industry, particularly for traditional steelmaking equipment such as converters and electric arc furnaces.
[0003] Currently, in existing converters, during the steelmaking process, high-temperature liquid slag overflowing from the furnace mouth slowly flows down along the skirt plates around the furnace body. Inevitably, it slides down and accumulates in the narrow space between the heat insulation plates and the support rings of the bearings on both sides above the furnace trunnions. If this is not detected and handled in time, the heat insulation plates of the trunnion bearings and the furnace cooling water pipes will be squeezed by the accumulated slag when the furnace body is rotated for steel tapping, charging, and slag removal, resulting in damage to the trunnion bearings. In view of this, a low-iron-consumption steelmaking equipment is proposed. Utility Model Content
[0004] The main objective of this invention is to provide a low-iron-consumption steelmaking equipment that can solve the problems mentioned in the background section.
[0005] To achieve the above objectives, the present invention proposes a low-iron-consumption steelmaking equipment, comprising a furnace body and a supporting rotating assembly. The furnace body is equipped with a protective assembly and an auxiliary reaction assembly. The protective assembly includes:
[0006] A fixed plate, on the outer wall of which a V-shaped diversion plate is fixedly connected, and a groove is provided on the side of the fixed plate away from the furnace body;
[0007] A sliding plate is slidably connected in a groove, and a hinge rod is hinged to the outer wall of the sliding plate. A wedge-shaped insert is fixedly connected to the end of the hinge rod away from the sliding plate.
[0008] The elastic telescopic rod has its telescopic end fixed to the wedge-shaped insert. The V-shaped diverter plate can divert the splashed molten steel, preventing the splashed molten steel from burning the bearings on both sides of the furnace body.
[0009] Preferably, the supporting rotation assembly includes a limiting ring, a connecting ring, a connecting shaft, a bearing, and a fixing frame. The supporting rotation assembly is disposed between two sets of limiting rings. The connecting ring is fixed to the connecting shaft. The bearing is sleeved on the connecting shaft and fixed to the fixing frame. The connecting shaft is driven by a motor. The motor drives the connecting shaft to rotate, causing the furnace body to shake.
[0010] Preferably, the limiting ring is fixedly connected to the outer wall of the furnace body, and the connecting ring is sleeved on the outer wall of the furnace body.
[0011] Preferably, the outer wall of the limiting ring connected to the protective component has a slot, and the slot is connected to an insertion port that matches the wedge-shaped insertion block. By pulling the sliding plate, the hinge rod is moved, thereby moving the wedge-shaped insertion block away from the slot, which releases the fixation of the protective component and allows the protective component to be replaced.
[0012] Preferably, the auxiliary reaction assembly includes a mounting plate, on which an electric turntable is provided. An electric telescopic column is fixedly connected to the rotating end of the electric turntable. A protective plate is fixedly connected to the outer wall of the limiting ring. The electric telescopic column passes through the protective plate and is rotatably connected to the protective plate. A top plate is fixedly connected to the top of the electric telescopic column.
[0013] Preferably, the top plate is fixed to the cover plate by a vertical rod, and a motor is fixedly connected to the top of the top plate. The output end of the motor is fixedly connected to the stirring component. An oxygen supply pipe is fixedly installed on the cover plate. By using an electric turntable and an electric telescopic column, the stirring component can be moved into the interior of the furnace. Then, driven by the output shaft of the motor, the stirring component rotates, promoting full contact and reaction between the molten iron and the slag. This allows the iron element to participate in the reaction more fully, avoiding waste due to ineffective reaction of some iron caused by uneven mixing, significantly improving the iron recovery rate and reducing iron consumption.
[0014] Preferably, the bottom end of the oxygen delivery pipe is higher than the bottom end of the stirring element.
[0015] Preferably, a liquid outlet is provided on the outer wall of the furnace body.
[0016] This utility model provides a low-iron-consumption steelmaking equipment. It has the following beneficial effects:
[0017] (1) The low iron consumption steelmaking equipment uses protective components. The V-shaped diversion plate can divert the splashed molten steel, preventing the splashed molten steel from burning the bearings on both sides of the furnace body, avoiding work stoppage due to bearing damage, extending the service life of the equipment, and ensuring the continuity of the steelmaking process.
[0018] (2) The low iron consumption steelmaking equipment uses protective components and has a detachable design for the sliding plate and wedge-shaped insert. When the diversion plate is damaged due to long-term high temperature steel slag erosion, the protective components can be quickly disassembled and replaced simply by pulling the sliding plate to release the wedge-shaped insert lock. The operation is convenient.
[0019] (3) The low-iron-consumption steelmaking equipment uses auxiliary reaction components, and the electric turntable and electric telescopic column work together to accurately feed the agitator into the furnace. When the motor drives the agitator to rotate, it forces the molten iron and slag to come into full contact. With the use of the support rotation component, the furnace body shakes, so that the iron element participates in the reaction more fully and reduces the iron loss caused by uneven mixing. At the same time, the oxygen supply pipe accurately supplies oxygen in conjunction with the stirring process, optimizes the oxidation-reduction reaction, further improves the iron element recovery rate, and reduces the steelmaking consumption. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ;
[0022] Figure 2 This is a schematic diagram of the limiting ring structure of this utility model;
[0023] Figure 3 This is a schematic diagram of the supporting rotation component and the protective component of this utility model.
[0024] Figure 4 This is a schematic diagram of the protective component structure of this utility model;
[0025] Figure 5 This is a schematic diagram of the overall structure of the present utility model. Figure 2 .
[0026] Explanation of icon numbers:
[0027] 1. Furnace body; 2. Supporting rotating assembly; 3. Protective assembly; 4. Auxiliary reaction assembly;
[0028] liquid outlet;
[0029] 22. Limiting ring; 23. Connecting ring; 24. Connecting shaft; 25. Bearing; 26. Fixing bracket; 27. Slot;
[0030] 32. Fixed plate; 33. V-shaped diverter plate; 34. Groove; 35. Sliding plate; 36. Hinge rod; 37. Wedge-shaped insert; 38. Elastic telescopic rod;
[0031] 41. Mounting plate; 42. Electric turntable; 43. Electric telescopic column; 44. Protective plate; 45. Top plate; 46. Vertical rod; 47. Cover plate; 48. Mixing component; 49. Oxygen supply pipe.
[0032] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Please see Figures 1-5 This utility model proposes a low-iron-consumption steelmaking equipment, including a furnace body 1 and a supporting rotating assembly 2. A liquid outlet 101 is provided on the outer wall of the furnace body 1 for discharging molten steel. A protective assembly 3 and an auxiliary reaction assembly 4 are provided on the furnace body 1.
[0035] In an embodiment of this utility model, in order to enable the furnace body 1 to shake, the supporting rotation assembly 2 specifically includes a limiting ring 21, a connecting ring 22, a connecting shaft 23, a bearing 24, and a fixing frame 25, which are arranged between two sets of limiting rings 21. The connecting ring 22 is fixed to the connecting shaft 23, the bearing 24 is sleeved on the connecting shaft 23, and the bearing 24 is fixed to the fixing frame 25. The connecting shaft 23 is driven by a motor. The limiting ring 21 is fixedly connected to the outer wall of the furnace body 1, and the connecting ring 22 is sleeved on the outer wall of the furnace body 1. By driving the connecting shaft 23 to rotate by the motor, the connecting ring 22 can be driven to rotate, thereby causing the furnace body 1 to shake under the action of the limiting ring 21, which facilitates the uniform shaking of the raw materials in the furnace body 1.
[0036] Furthermore, the protective assembly 3 includes a fixed plate 31, a sliding plate 34, and an elastic telescopic rod 37. A V-shaped diverter plate 32 is fixedly connected to the outer wall of the fixed plate 31. A groove 33 is provided on the side of the fixed plate 31 away from the furnace body 1. The sliding plate 34 is slidably connected in the groove 33. A hinge rod 35 is hinged to the outer wall of the sliding plate 34. A wedge-shaped insert 36 is fixedly connected to the end of the hinge rod 35 away from the sliding plate 34. The telescopic end of the elastic telescopic rod 37 is fixed to the wedge-shaped insert 36. A slot 211 is provided on the outer wall of the limiting ring 21 connected to the protective assembly 3. An insert is connected in the slot 211. The socket is matched with the wedge-shaped insert 36. The V-shaped diverter plate 32 can divert the splashed molten steel, preventing the splashed molten steel from burning the bearings 24 on both sides of the furnace body 1, avoiding work stoppage due to bearing damage, extending the service life of the equipment, and ensuring the continuity of the steelmaking process. At the same time, when the V-shaped diverter plate 32 is damaged due to long-term high-temperature slag erosion, simply pull the sliding plate 34 to drive the hinge rod 35 to move, thereby causing the wedge-shaped insert 36 to disengage from the socket of the slot 211, releasing the locking of the wedge-shaped insert 36, and the protective component 3 can be quickly disassembled and replaced. The operation is convenient.
[0037] Furthermore, the auxiliary reaction assembly 4 includes a mounting plate 41, on which an electric turntable 42 is mounted. An electric telescopic column 43 is fixedly connected to the rotating end of the electric turntable 42. A protective plate 44 is fixedly connected to the outer wall of the limiting ring 21. The electric telescopic column 43 passes through the protective plate 44 and is rotatably connected to it. A top plate 45 is fixedly connected to the top of the electric telescopic column 43. The top plate 45 is fixed to the cover plate 47 via a vertical rod 46. A motor is fixedly connected to the top of the top plate 45, and the output end of the motor is fixedly connected to the stirring element 48. A [missing information - likely a device or component] is fixedly mounted on the cover plate 47. The oxygen supply pipe 49 has its bottom end higher than the bottom end of the agitator 48. With the use of the auxiliary reaction component 4, the electric turntable 42 and the electric telescopic column 43 work together to accurately feed the agitator 48 into the furnace. When the motor drives the agitator 48 to rotate, it agitates the molten iron and slag to fully contact each other. With the use of the support rotation component 2, the furnace body 1 shakes, allowing the iron elements to participate in the reaction more fully and reducing iron loss caused by uneven mixing. At the same time, the oxygen supply pipe 49 accurately supplies oxygen in conjunction with the agitation process, optimizes the oxidation-reduction reaction, further improves the iron element recovery rate, and reduces steelmaking consumption.
[0038] It should be noted that the above electrical components are all existing technology products. Those skilled in the art should select, install and complete the circuit debugging work according to the needs of use to ensure that all electrical appliances can work normally. The components are all general standard parts or components known to those skilled in the art. Their structure and principle can be known by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here.
[0039] In use, scrap steel (usually accounting for 10%-30% of the raw materials) is added first to adjust the furnace temperature and reduce the carbon content. Then, lime, dolomite, fluorite, etc. are prepared to form slag and remove impurities. The motor drives the connecting shaft 23 to rotate, which in turn drives the connecting ring 22 to rotate. Under the action of the limiting ring 21, the furnace body 1 is rotated, and molten iron and scrap steel are poured into the furnace. Then, it is reset to a vertical state. The electric turntable 42 and the electric telescopic column 43 are used together to accurately feed the stirring component 48 into the furnace. When the motor drives the stirring component 48 to rotate, the molten iron and slag are stirred to fully contact. With the use of the supporting rotating component 2, the furnace body 1 shakes, so that the iron element participates in the reaction more fully and reduces the iron loss caused by uneven mixing. At the same time, the oxygen supply pipe 49 accurately supplies oxygen in conjunction with the stirring process, triggering the oxidation reaction of carbon, silicon, manganese and other elements in the molten iron.
[0040] Meanwhile, the V-shaped diversion plate 32 can divert the splashed molten steel, preventing the splashed molten steel from burning the bearings 24 on both sides of the furnace body 1. When the V-shaped diversion plate 32 is damaged due to long-term high-temperature slag erosion, simply pull the sliding plate 34 to drive the hinge rod 35 to move, thereby causing the wedge-shaped insert 36 to disengage from the slot 211 and release the locking of the wedge-shaped insert 36, so that the protective component 3 can be quickly disassembled and replaced.
[0041] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A low-iron-consumption steelmaking device, comprising a furnace body (1) and a supporting rotating assembly (2), characterized in that: The furnace body (1) is provided with a protective component (3) and an auxiliary reaction component (4). The protective component (3) includes: A fixed plate (31) is provided with a V-shaped diversion plate (32) fixedly connected to the outer wall of the fixed plate (31), and a groove (33) is provided on the side of the fixed plate (31) away from the furnace body (1). A sliding plate (34) is slidably connected in a groove (33). A hinge rod (35) is hinged to the outer wall of the sliding plate (34). A wedge-shaped insert (36) is fixedly connected to one end of the hinge rod (35) away from the sliding plate (34). The elastic telescopic rod (37) has its telescopic end fixed to the wedge-shaped insert (36).
2. The low-iron-consumption steelmaking equipment according to claim 1, characterized in that: The supporting rotation assembly (2) includes a limiting ring (21), a connecting ring (22), a connecting shaft (23), a bearing (24), and a fixing frame (25). The supporting rotation assembly (2) is arranged between two sets of limiting rings (21). The connecting ring (22) is fixed to the connecting shaft (23). The bearing (24) is sleeved on the connecting shaft (23) and fixed to the fixing frame (25). The connecting shaft (23) is driven by a motor.
3. The low-iron-consumption steelmaking equipment according to claim 2, characterized in that: The limiting ring (21) is fixedly connected to the outer wall of the furnace body (1), and the connecting ring (22) is sleeved on the outer wall of the furnace body (1).
4. The low-iron-consumption steelmaking equipment according to claim 2, characterized in that: A slot (211) is provided on the outer wall of the limiting ring (21) connected to the protective component (3), and an insertion port is connected in the slot (211) and the insertion port matches the wedge-shaped insertion block (36).
5. The low-iron-consumption steelmaking equipment according to claim 2, characterized in that: The auxiliary reaction component (4) includes a mounting plate (41), on which an electric turntable (42) is provided. An electric telescopic column (43) is fixedly connected to the rotating end of the electric turntable (42). A protective plate (44) is fixedly connected to the outer wall of the limiting ring (21). The electric telescopic column (43) passes through the protective plate (44) and is rotatably connected to the protective plate (44). A top plate (45) is fixedly connected to the top of the electric telescopic column (43).
6. The low-iron-consumption steelmaking equipment according to claim 5, characterized in that: The top plate (45) is fixed to the cover plate (47) by a vertical rod (46). A motor is fixedly connected to the top of the top plate (45), and the output end of the motor is fixedly connected to the stirring component (48). An oxygen supply pipe (49) is fixedly installed on the cover plate (47).
7. The low-iron-consumption steelmaking equipment according to claim 6, characterized in that: The bottom end of the oxygen delivery pipe (49) is higher than the bottom end of the stirring piece (48).
8. The low-iron-consumption steelmaking equipment according to claim 1, characterized in that: A liquid outlet (101) is provided on the outer wall of the furnace body (1).