Device for removing chromium from vanadium-containing molten iron
By designing a device for dechromatization of vanadium-containing iron, using a screen and crushing combination, the problem of difficult separation and blockage of impurity waste in traditional methods is solved, and the chromium detachment efficiency and process efficiency are improved.
Patent Information
- Application Number
- CN202421823499.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The traditional method of dechromatization of molten iron will generate a large amount of impurity waste during the treatment process, especially large-sized impurity waste, which is difficult to effectively separate, easily lead to pipeline blockage and affect the chromium detachment efficiency.
A device for dechromatization of vanadium-containing iron is designed, including the device body and screening box, which screens and eliminates larger-sized waste through the screen, and uses a combination of vibration rods and blades to crush smaller-sized waste to reduce the impact on the dechromatization process.
Effectively screen and crush impurity waste, reduce pipeline blockage, improve the chromium detachment efficiency, and reduce the cost and complexity of the dechromium process.
Smart Images
Figure CN222877986U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chromium removal, in particular to a device for removing chromium from vanadium-containing molten iron. Background Art
[0002] In the field of steel smelting and metal removal, the treatment of vanadium-containing hot metal is a complex and critical process. Since hot metal often contains impurity elements such as chromium, these elements may form high-melting-point oxides in the subsequent smelting process, seriously affecting smelting efficiency and product quality. Therefore, hot metal dechromization has become an important pretreatment technology.
[0003] Traditional methods for removing chromium from hot metal mainly include the LD converter method, the Kaldor converter method, and the shaking bag method. Although these methods can reduce the chromium content in hot metal to a certain extent, they are often accompanied by the generation of a large amount of impurities during the treatment process, especially large-sized impurity waste. These wastes are not only difficult to separate effectively, but also easy to cause blockage in the pipeline, affecting the subsequent chromium removal efficiency. In addition, the fine waste particles in the hot metal are also difficult to completely remove by simple physical methods, further increasing the difficulty and cost of chromium removal. Therefore, in view of the above technical problems, a device for removing chromium from vanadium-containing hot metal is proposed. Utility Model Content
[0004] The utility model aims to provide a device for removing chromium from vanadium-containing molten iron, which can completely mix vanadium-chromium slag with sulfuric acid solution to obtain vanadium-chromium molten iron, and can screen and remove larger-sized waste in the vanadium-chromium molten iron, and then crush the smaller-sized waste inside the screened vanadium-chromium molten iron, and then carry out feeding and dechromiuming, thereby reducing pipeline blockage and the influence of impurity waste on dechromization, and greatly improving the chromium removal efficiency.
[0005] The utility model is realized by the following technical solutions:
[0006] A device for dechroming vanadium-containing molten iron comprises a device body and a screening box, wherein a slot is provided on the upper side of the device body, a plug plate is fixedly connected to the upper side of the screening box, and the plug plate is placed in the slot, a screen is provided on the lower side of the screening box, a fixing plate is fixedly connected to the inside of the device body, a fixing cylinder is fixedly connected to the upper side of the fixing plate, a spring is fixedly connected to the inner bottom of the fixing cylinder, a vibrating rod is fixedly connected to the upper end of the spring, and the vibrating rod is close to the bottom of the screening box, a fixed block is fixedly connected to one side of the vibrating rod, a No. 1 motor is fixedly connected to the outside of the device body, a rotating shaft is fixedly connected to one side of the No. 1 motor, and the rotating shaft is rotatably connected to the device body, a butt plate is fixedly connected to the outside of the rotating shaft, and the butt plate is abutted against the fixed block.
[0007] Preferably, the slots and the plug boards are provided in two groups and are arranged symmetrically.
[0008] Preferably, a handle is fixedly connected to the upper side of the plug board.
[0009] Preferably, the fixing plates are provided in two groups and are arranged symmetrically.
[0010] Preferably, a No. 2 motor is fixedly connected to one side of the device body, a rotating rod is fixedly connected to one side of the No. 2 motor, and the rotating rod and the device body are rotatably connected, and blades are fixedly connected to the outside of the rotating rod, and the number of blades is several groups and symmetrically arranged.
[0011] Preferably, a water pump is installed inside the device body, a catheter is fixedly connected to the outside of the water pump, and the end of the catheter extends out of the device body, and the end of the catheter is engraved with a thread.
[0012] Preferably, a controller is fixedly connected to the outside of the device body, and the controller is connected to the No. 1 motor, the No. 2 motor and the water pump signal.
[0013] The technical solution of the utility model has at least the following beneficial effects:
[0014] The utility model provides a device for dechroming vanadium-containing molten iron. When the screen box is blocked due to excessive impurity waste during use, the counter plate can be driven to rotate by the rotating shaft, and the vibrating rod can be driven to slide downward to compress the spring until the counter plate is separated from the fixed block. The vibrating rod can then be released, and the bottom of the screen box can be violently hit under the drive of the spring to vibrate up the blocked waste. The rotating rod can also drive the blade to rotate quickly to cut and crush smaller-sized waste, so that the vanadium-chromium slag can be completely mixed with the sulfuric acid solution to obtain vanadium-chromium molten iron, and larger-sized waste in the vanadium-chromium molten iron can be screened and removed. Secondly, the smaller-sized waste inside the screened vanadium-chromium molten iron is crushed, and then the feed is dechromed, thereby reducing pipeline blockage and the influence of impurity waste on dechroming. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 for Figure 1 A magnified view of middle;
[0017] Figure 3 It is a partial front cross-sectional view of the utility model;
[0018] Figure 4 for Figure 3 Enlarged view of middle B;
[0019] Figure 5 for Figure 3 Enlarged view of middle C;
[0020] Icons: 1. Device body; 2. Screen box; 3. Slot; 4. Insert plate; 5. Handle; 6. Screen; 7. Fixed plate; 8. Fixed cylinder; 9. Spring; 10. Vibrating rod; 11. Fixed block; 12. Motor No. 1; 13. Rotating shaft; 14. Abutment plate; 15. Motor No. 2; 16. Rotating rod; 17. Blade; 18. Water pump; 19. Conduit; 20. Controller. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figure 1-5 The utility model provides a device for dechroming vanadium-containing molten iron, comprising a device body 1 and a screening box 2, a slot 3 is provided on the upper side of the device body 1, a plug plate 4 is fixedly connected to the upper side of the screening box 2, and the plug plate 4 is placed in the slot 3, a screen 6 is provided on the lower side of the screening box 2, a fixing plate 7 is fixedly connected to the inside of the device body 1, a fixing cylinder 8 is fixedly connected to the upper side of the fixing plate 7, a spring 9 is fixedly connected to the inner bottom of the fixing cylinder 8, a vibrating rod 10 is fixedly connected to the upper end of the spring 9, and the vibrating rod 10 is close to the bottom of the screening box 2, a fixed block 11 is fixedly connected to one side of the vibrating rod 10, a No. 1 motor 12 is fixedly connected to the outside of the device body 1, a rotating shaft 13 is fixedly connected to one side of the No. 1 motor 12, and the rotating shaft 13 is rotatably connected to the device body 1, and a butt plate 14 is fixedly connected to the outside of the rotating shaft 13, and the butt plate 14 is abutted against the fixed block 11.
[0023] The number of the slots 3 and the inserting plates 4 is two groups and they are arranged symmetrically. The two groups of slots 3 and the inserting plates 4 are provided to facilitate the placement of the screening box 2 to be more stable.
[0024] A handle 5 is fixedly connected to the upper side of the insert plate 4, and the handle 5 can be used to conveniently pull out the screening box 2 for waste collection.
[0025] The number of the fixing plates 7 is two groups and they are arranged symmetrically. By providing two groups of fixing plates 7, the left and right sides of the screening box 2 can be subjected to equal vibration.
[0026] A No. 2 motor 15 is fixedly connected to one side of the device body 1, a rotating rod 16 is fixedly connected to one side of the No. 2 motor 15, and the rotating rod 16 is rotatably connected to the device body 1, a blade 17 is fixedly connected to the outside of the rotating rod 16, and the number of blades 17 is several groups and symmetrically arranged.
[0027] A water pump 18 is installed inside the device body 1, and a conduit 19 is fixedly connected to the outside of the water pump 18, and the end of the conduit 19 extends out of the device body 1. The end of the conduit 19 is engraved with threads, which can facilitate the conduit 19 to be connected to other pipes.
[0028] The outside of the device body 1 is fixedly connected with a controller 20 , and the controller 20 is signal-connected with the No. 1 motor 12 , the No. 2 motor 15 and the water pump 18 . The controller 20 is used to control the operation of the No. 1 motor 12 , the No. 2 motor 15 and the water pump 18 .
[0029] The working principle of a device for removing chromium from vanadium-containing molten iron based on the embodiment is that when it is used, vanadium-chromium slag is put into the screening box 2, and then sulfuric acid solution is added to the inside of the device body 1. After complete dissolution, vanadium-chromium molten iron can be obtained. At this time, the impurity waste of larger size can be screened through the screen 6 at the bottom of the screening box 2. When in use, if there are too many impurity wastes and the screening box 2 is blocked, the No. 1 motor 12 can be operated at this time, and the abutment plate 14 can be driven to rotate by the rotating shaft 13. Since the abutment plate 14 is in contact with the fixed block 11, the vibrating rod 10 can be driven to slide downward, compressing the spring 9 until the abutment plate 14 is separated from the fixed block 11, and the vibrating rod 10 can be released, and then the screening material is driven by the spring 9. The bottom of the box 2 is hit violently to vibrate the bottom of the screening box 2, so that the blocked waste is vibrated and the vanadium-chromium iron water can pass through. At the same time, when the smaller waste passes through the screen 6 and falls into the bottom of the device body 1, in order to prevent the pipeline from being blocked and avoid the subsequent influence on the separation of chromium, the second motor 15 can be operated at this time to make the rotating rod 16 drive the blade 17 to rotate rapidly, cut and crush it, and then the water pump 18 and the conduit 19 are used for feeding, so that the larger waste in the vanadium-chromium iron water can be screened and removed, and then the smaller waste inside the screened vanadium-chromium iron water is crushed, and then the feed is dechromed, which reduces the influence of pipeline blockage and impurity waste on dechroming, and greatly improves the chromium separation efficiency.
[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A device for removing chromium from vanadium-containing molten iron, characterized in that: The invention comprises a device body (1) and a screening box (2), wherein a slot (3) is provided on the upper side of the device body (1), a plug plate (4) is fixedly connected to the upper side of the screening box (2), and the plug plate (4) is placed in the slot (3), a screen (6) is provided on the lower side of the screening box (2), a fixing plate (7) is fixedly connected to the inside of the device body (1), a fixing cylinder (8) is fixedly connected to the upper side of the fixing plate (7), a spring (9) is fixedly connected to the inner bottom of the fixing cylinder (8), and the upper end of the spring (9) is fixedly connected to the inner bottom of the fixing cylinder (8), and the upper end of the spring (9) is fixedly connected to the inner bottom of the fixing cylinder (8). A vibrating rod (10) is fixedly connected, and the vibrating rod (10) is close to the bottom of the screening box (2); one side of the vibrating rod (10) is fixedly connected to a fixed block (11); the outside of the device body (1) is fixedly connected to a No. 1 motor (12); one side of the No. 1 motor (12) is fixedly connected to a rotating shaft (13), and the rotating shaft (13) is rotatably connected to the device body (1); the outside of the rotating shaft (13) is fixedly connected to a butt plate (14), and the butt plate (14) is in abutment with the fixed block (11).
2. The device for dechroming vanadium-containing molten iron according to claim 1, characterized in that: The slots (3) and the plug boards (4) are provided in two groups and are arranged symmetrically.
3. The device for dechroming vanadium-containing molten iron according to claim 1, characterized in that: A handle (5) is fixedly connected to the upper side of the plug board (4).
4. The device for dechroming vanadium-containing molten iron according to claim 1, characterized in that: The number of the fixing plates (7) is two groups and they are arranged symmetrically.
5. The device for dechroming vanadium-containing molten iron according to claim 1, characterized in that: A second motor (15) is fixedly connected to one side of the device body (1), a rotating rod (16) is fixedly connected to one side of the second motor (15), and the rotating rod (16) and the device body (1) are rotatably connected, and blades (17) are fixedly connected to the outside of the rotating rod (16), and the number of blades (17) is several groups and is symmetrically arranged.
6. The device for removing chromium from vanadium-containing molten iron according to claim 1, characterized in that: A water pump (18) is installed inside the device body (1), and a conduit (19) is fixedly connected to the outside of the water pump (18), and the end of the conduit (19) extends out of the device body (1), and the end of the conduit (19) is engraved with a thread.
7. The device for removing chromium from vanadium-containing molten iron according to claim 5, characterized in that: The outside of the device body (1) is fixedly connected with a controller (20), and the controller (20) is signal-connected to the No. 1 motor (12), the No. 2 motor (15) and the water pump (18).