Molten iron pouring slag stopping device
By using a molten iron casting slag device combined with straw and steel beam, the problem of poor slag effect of the molten iron packing slag device in the prior art is solved, and a low-cost and efficient slag purification effect is achieved, ensuring the quality of the castings and improving the quality of the castings Applicability of the device.
Patent Information
- Application Number
- CN202420447531.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-08
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-03-08
AI Technical Summary
The existing iron casting slag stop device uses graphite rod support with high cost and the slag rock wool is prone to deform at high temperatures, resulting in the failure of the slag absorption effect, and the inability to effectively clean the slag, affecting the quality of the casting.
Straw is used as the slag material and the steel bar beams are combined. The straw is burned to produce gas to clean the slag. The steel bar beams can be bent and adjusted in height, the material cost is low and the installation is simple. The iron liquid level is compacted by straw.
The environmentally friendly and low-cost iron slag cleaning effect is achieved, the casting quality is ensured, and the problem of poor slag function in the existing technology is solved. The adjustability of the steel bar cross beams improves the applicability of the device.
Smart Images
Figure CN222242614U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical casting, in particular to a slag blocking device for molten iron pouring. Background Art
[0002] When various metal materials are melted and subjected to the "oxidation-reduction" smelting operation, a large amount of metal oxide iron slag and molten slag will inevitably be produced, either floating on the surface of the molten iron or existing in the metal molten iron in the form of particles. In order to achieve clean slag casting of molten iron, the molten iron must be cleaned, slag removed and slag blocked before pouring, otherwise the casting will be easily scrapped due to inclusions and quality defects.
[0003] The current slag blocking device for molten iron pouring uses graphite rods as supports, which is expensive; if the thickness of the slag blocking rock wool is improperly handled, or the slag blocking rock wool is separated from the metal liquid surface in the middle and late stages of molten iron pouring, or the rock wool is deformed and bulged due to heat, it will completely lose its slag blocking and slag absorbing functions. Therefore, a slag blocking device for molten iron pouring is now provided. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a slag-blocking device for molten iron pouring. Straw handles are used as slag-blocking materials for molten metal, which are environmentally friendly compared to other materials. The gas generated by the combustion of the straw handles and the molten metal can also protect the molten metal surface by cleaning slag and providing an air mold. Steel bars are used as slag-blocking beams, and the appropriate height of the beam can be adjusted by bending and deforming the beam up and down. The material cost is low and the source is wide. The slag-blocking device is easy to install, and the use of square pillow straw handles can compact the molten iron surface. The deficiencies in the prior art are overcome, and the problem of poor slag-blocking and slag-absorbing effects of the existing molten iron ladle pouring slag-blocking device is effectively solved.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A slag blocking device for molten iron pouring, comprising a ladle mounting frame, a pouring ladle is mounted on the ladle mounting frame, a slag blocking bracket is mounted on the top of the pouring ladle, and a slag blocking straw handle is arranged on one side of the slag blocking bracket;
[0007] The slag-blocking support comprises two steel pipes welded to both sides of the top end of the outer wall of the casting iron ladle, and cross beams are inserted in the two steel pipes.
[0008] Preferably, the crossbeam is made of steel bars, and is bent into a bow shape to span the opening of the casting iron ladle, with both ends of the crossbeam being inserted into two steel pipes respectively.
[0009] Preferably, the tops of the two steel pipes are both threaded with fixing bolts, and the ends of the two fixing bolts are respectively abutted against the two end side walls of the cross beam.
[0010] Preferably, a gap is reserved between the horizontal section of the crossbeam and the top of the casting ladle.
[0011] Preferably, the slag-blocking straw handle comprises a straw handle placed in a casting iron ladle, and both ends of the straw handle are tied with steel wires.
[0012] Preferably, the rice straw is made by compacting and pressing dry rice straw into square pillow rice straw.
[0013] The beneficial effects of the utility model are:
[0014] Using straw handles as slag-blocking material for molten metal is more environmentally friendly than other materials. The gas generated by the combustion of straw handles and molten metal can also protect the molten metal surface by cleaning slag and air mold. Using steel bars as slag-blocking beams can adjust the appropriate height of the beam by bending and deforming the beam up and down. The material cost is low and the source is wide. The slag-blocking device is easy to install. The use of square pillow straw handles can compact the molten iron surface. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a first-view stereoscopic structural diagram of a molten iron pouring slag blocking device proposed by the utility model.
[0016] Figure 2 This is a second-view stereoscopic structural diagram of a molten iron pouring slag blocking device proposed by the utility model.
[0017] Figure 3 The utility model provides a molten iron pouring slag blocking device Figure 1 Enlarged structural diagram at A in the middle.
[0018] In the figure: 1. Iron bag mounting frame; 2. Casting iron bag; 3. Steel pipe; 4. Crossbeam; 5. Straw handle; 6. Steel wire; 7. Fixing bolt. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0020] Example 1, reference Figure 1-3 A slag blocking device for molten iron pouring comprises a ladle mounting frame 1, a pouring ladle 2 is mounted on the ladle mounting frame 1, a slag blocking bracket is mounted on the top of the pouring ladle 2, and a slag blocking straw handle is arranged on one side of the slag blocking bracket;
[0021] The slag-blocking support comprises two steel pipes 3 welded to both sides of the top of the outer wall of the casting iron ladle 2, and a crossbeam 4 is inserted in the two steel pipes 3;
[0022] The cross beam 4 is made of steel bars and is bent into a bow shape to cross the opening of the casting iron ladle 2. The two ends of the cross beam 4 are respectively inserted into the two steel pipes 3. A gap is reserved between the horizontal section of the cross beam 4 and the top of the casting iron ladle 2.
[0023] The tops of the two steel pipes 3 are both screwed with fixing bolts 7, and the ends of the two fixing bolts 7 are respectively abutted against the side walls of the two ends of the cross beam 4. By tightening the fixing bolts 7, the cross beam 4 is easily fixed to prevent the cross beam 4 from falling off the steel pipe 3;
[0024] The slag-blocking straw handle comprises a straw handle 5 placed in a casting iron ladle 2, both ends of the straw handle 5 are tied with steel wires 6, and the straw handle 5 is made of dry straw compressed into a square pillow straw.
[0025] Working principle: The distance between the crossbeam 4 and the ladle mouth can be adjusted by bending and deforming the crossbeam 4 up and down. The distance between the crossbeam 4 and the ladle mouth is adjusted according to the specifications of the straw handle. If the spacing is too small, the straw handle will easily flow out from the upper end of the crossbeam; if the gap is too large, the crossbeam will lose its function and the straw handle will flow out from the bottom of the crossbeam 4. It is particularly important to control the gap between the crossbeam 4 and the ladle mouth. Before pouring molten iron, remove the slag from the surface of the pure metal liquid. When the temperature of the molten metal reaches the casting temperature, push the metal surface at the outlet of the pouring iron ladle 2 with a slag rake, bend the slag-blocking straw handle into an arc and place it tightly on one side of the outlet of the pouring iron ladle 2, and compact the straw handle manually to make the straw handle 5 completely contact with the molten metal. Place the slag-blocking straw handle at one end of the pouring mouth on the metal liquid surface, and rely on the moment the straw handle 5 contacts the metal liquid surface to produce CO through a combustion reaction. 2 The air film continuously pushes the slag on the surface of the molten metal to separate from the molten iron surface in reverse and diffuse outward, and the pure molten metal flows out from the bottom of the straw handle 5, realizing the transformation of adsorption slag removal to slag blocking and clean slag removal. The pouring process follows the "fast filling, stable pouring, slow slag blocking" operation control technique to prevent the molten metal from pouring unsteady, the slag blocking straw handle drifting, or flowing out from the outlet of the pouring ladle 2. After the casting is completed, the slag blocking straw handle is taken out from the pouring ladle 2 and placed on the casting riser, making full use of the straw handle's burned-out carbonized material as the casting riser insulation material.
[0026] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.
Claims
1. A slag-blocking device for molten iron pouring, comprising a ladle mounting frame (1), characterized in that: A casting ladle (2) is mounted on the ladle mounting frame (1), a slag-blocking bracket is mounted on the top of the casting ladle (2), and a slag-blocking straw handle is arranged on one side of the slag-blocking bracket; The slag-blocking support comprises two steel pipes (3) welded to both sides of the top end of the outer wall of the casting iron ladle (2), and a crossbeam (4) is inserted into the two steel pipes (3).
2. The slag blocking device for molten iron pouring according to claim 1, characterized in that: The cross beam (4) is made of steel bars and is bent into a bow shape to span the opening of the casting iron ladle (2). The two ends of the cross beam (4) are respectively inserted into two steel pipes (3).
3. A slag blocking device for molten iron pouring according to claim 2, characterized in that: The tops of the two steel pipes (3) are both screwed with fixing bolts (7), and the ends of the two fixing bolts (7) are respectively abutted against the side walls of both ends of the crossbeam (4).
4. The slag blocking device for molten iron pouring according to claim 2, characterized in that: A gap is reserved between the horizontal section of the crossbeam (4) and the top of the casting iron ladle (2).
5. The slag blocking device for molten iron pouring according to claim 4, characterized in that: The slag-blocking straw handle comprises a straw handle (5) placed in a casting iron ladle (2), and steel wires (6) are tied at both ends of the straw handle (5).
6. The slag blocking device for molten iron pouring according to claim 5, characterized in that: The straw handle (5) is made of dry straw compressed into a square pillow straw.