Thermal shock resistant and wear resistant integrated composite alloy castings

Abstract

The application discloses a composite alloy casting integrated with heat shock resistance and wear resistance, and relates to the technical field of castings.The composite alloy casting comprises a slag falling head, a slag falling channel and a limiting rod, one end of the slag falling channel is provided with the slag falling head, the slag falling head and the slag falling channel are in U-shaped structures, the slag falling head and the slag falling channel are internally provided with the limiting rod, the limiting rod is used for keeping the rigidity of the U-shaped structures of the slag falling head and the slag falling channel, and is used for preventing the deformation of the slag falling head and the slag falling channel, the bottom of the slag falling head and the slag falling channel is provided with a positioning block, and the positioning block is convenient for positioning when the alloy casting is installed.The composite alloy casting has high practicability, is very convenient to construct and assemble, solves the problems of short service life and difficult maintenance of the existing alloy castings, and is made of a material with higher wear resistance and higher hardness, so that the high-temperature resistance and corrosion resistance of the alloy casting are more superior.

Description

Technical Field

[0001] This invention relates to the field of casting technology, and in particular to composite alloy castings that integrate thermal shock resistance and wear resistance. Background Technology

[0002] It is well known that in the blast furnace slag flushing system, alloy castings made of steel plates are used to lay at the bottom of the blast furnace slag trough. However, in actual use, it has been found that even with alloy castings as the base material, the wear resistance and high temperature resistance of the bottom of the blast furnace slag trough are still very poor, and the service life is very short. Regardless of whether the thickness of the steel plate is increased, good results cannot be achieved. Each alloy casting is about 2 meters long, and once damaged, it needs to be replaced as a whole, and the entire blast furnace slag trough needs to be repaired. This causes great losses to the entire operation. We have proposed a composite alloy casting that integrates thermal shock resistance and wear resistance. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention discloses a composite alloy casting that integrates thermal shock resistance and wear resistance. The present invention achieves the purpose of extending the service life of the alloy casting in the blast furnace slag ditch and facilitating maintenance by setting a slag head at one end of the slag discharge channel and setting an anti-slag discharge device inside the slag head.

[0004] To achieve the aforementioned objective, the present invention employs the following technical solution: The composite alloy casting, which integrates thermal shock resistance and wear resistance, includes a slag head, a slag channel, and a limiting rod. The slag head is located at one end of the slag channel. The slag head and slag channel have a U-shaped structure. A limiting rod is installed inside the slag head and slag channel to maintain the rigidity of the U-shaped structure of the slag head and slag channel and prevent deformation of the slag head and slag channel. A positioning block is provided at the bottom of the slag head and slag channel to facilitate positioning when installing the alloy casting.

[0005] The slag discharge head consists of a first limiting rod, a slag discharge plate, a positioning block, and an anti-slag discharge device. The slag discharge plate has a U-shaped structure, and the first limiting rod is located inside the U-shaped structure. The first limiting rod is located at the upper part of the U-shaped structure. An anti-slag discharge device is located on the bottom surface of the slag discharge plate. A positioning block is located at the bottom of the slag discharge plate. The anti-slag discharge device consists of a first support block, an inclined plate, and a second support block. The first support block and the second support block are respectively connected to the bottom surface of the slag discharge plate. An inclined plate is located between the first support block and the second support block.

[0006] One end of the slag discharge plate is provided with a third connecting plate, one end of which is connected to the slag discharge plate body, and the other end of the third connecting plate is provided with a second connecting edge. The second connecting edge, the third connecting plate, and one end of the slag discharge plate body together form a fourth connecting groove.

[0007] The first support block has a rectangular structure. The bottom of the first support block is fixedly connected to the slag plate. The top of the first support block is provided with a second connecting groove, which is used to connect the inclined plate to the first support block.

[0008] The second support block is connected to one end of the top inclined plate. The second support block is parallel to the first support block. The height of the second support block is lower than that of the first support block. The second support block is fixedly connected to the bottom of the slag discharge plate.

[0009] The top surface of the inclined plate is provided with several protrusions, which are used to offset the impact of steel slag. One end of the inclined plate is movably connected to the second connecting groove of the first support block to reduce impact resonance and increase the service life of the inclined plate.

[0010] The slag discharge channel has a U-shaped structure, and the U-shaped cross-section of the slag discharge channel is the same as the U-shaped cross-section of the slag discharge head. The slag discharge channel is composed of a channel plate, a second limiting rod, and a third limiting rod. The channel plate has a U-shaped structure, and the upper part of the channel plate is provided with a second limiting rod and a third limiting rod. The second limiting rod and the third limiting rod are parallel to each other. The bottom of the channel plate is provided with positioning blocks, and there are at least three positioning blocks.

[0011] One end of the channel plate is provided with a first connecting plate, and the other end of the channel plate is provided with a second connecting plate. The first connecting plate is provided with a first connecting edge. The first connecting edge, the first connecting plate, and the channel plate together form a first connecting groove. A third connecting groove is provided between the second connecting plate and the channel plate. The second connecting plate is inserted into a fourth connecting groove. The third connecting groove is connected to the second connecting edge on the slag discharge plate to connect the channel plate with the slag discharge plate.

[0012] The opening directions of the first connecting groove and the third connecting groove are opposite, and the first connecting groove and the third connecting groove are used to connect two adjacent channel plates.

[0013] The first, second, and third limiting rods have the same structure and are parallel to each other. All three limiting rods are cylindrical or prismatic in shape.

[0014] The composite alloy casting integrating thermal shock resistance and wear resistance of this invention includes a slag discharge head, a slag discharge channel, and a limiting rod. By setting a slag discharge head at one end of the slag discharge channel and installing an anti-slag discharge device inside the slag discharge head, the service life of the alloy casting in the blast furnace slag ditch is extended and maintenance is facilitated. This invention is highly practical, very convenient to construct and assemble, and solves the problems of short service life and difficult maintenance of existing alloy castings. At the same time, the use of materials with higher wear resistance and higher hardness makes the alloy casting have superior high-temperature resistance and corrosion resistance. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the bottom three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the slag discharge head of the present invention; Figure 4 This is a three-dimensional structural diagram of the first support block of the present invention; Figure 5 This is a schematic diagram of the connection structure between the first support block and the second support block of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the channel plate of the present invention; In the diagram: 1. First limiting rod; 2. Slag discharge head; 3. Slag discharge plate; 4. Slag discharge head; 5. Second limiting rod; 6. Slag discharge channel; 7. Channel plate; 8. Third limiting rod; 9. First connecting plate; 10. First connecting groove; 11. Positioning block; 12. First connecting edge; 13. First support block; 14. Inclined plate; 15. Second support block; 16. Second connecting groove; 17. Third connecting groove; 18. Second connecting plate; 19. Third connecting plate; 20. Second connecting edge; 21. Fourth connecting groove. Detailed Implementation

[0016] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0017] Combined with appendix Figures 1-6 A composite alloy casting integrating thermal shock resistance and wear resistance includes a slag head 2, a slag channel 6, and a limiting rod. The slag head 2 is provided at one end of the slag channel 6. The slag head 2 and the slag channel 6 have a U-shaped structure. A limiting rod is provided inside the slag head 2 and the slag channel 6. The limiting rod is used to maintain the rigidity of the U-shaped structure of the slag head 2 and the slag channel 6 and prevent deformation of the slag head 2 and the slag channel 6. A positioning block 11 is provided at the bottom of the slag head 2 and the slag channel 6. The positioning block 11 facilitates the positioning when installing the alloy casting.

[0018] The slag discharge head 2 is composed of a first limiting rod 1, a slag discharge plate 3, a positioning block, and an anti-slag discharge device. The slag discharge plate 3 has a U-shaped structure. The first limiting rod 1 is provided inside the U-shaped structure of the slag discharge plate 3. The first limiting rod 1 is located at the upper part of the U-shaped structure. An anti-slag discharge device is provided on the bottom surface of the slag discharge plate 3. A positioning block is provided at the bottom of the slag discharge plate 3. The anti-slag discharge device is composed of a first support block 13, an inclined plate 14, and a second support block 15. The first support block 13 and the second support block 15 are respectively connected to the bottom surface of the slag discharge plate 3. An inclined plate 14 is provided between the first support block 13 and the second support block 15.

[0019] One end of the slag discharge plate 3 is provided with a third connecting plate 19, one end of the third connecting plate 19 is connected to the slag discharge plate 3, and the other end of the third connecting plate 19 is provided with a second connecting edge 20. The second connecting edge 20, the third connecting plate 19 and one end of the slag discharge plate 3 together form a fourth connecting groove 21.

[0020] The first support block 13 has a rectangular structure. The bottom of the first support block 13 is fixedly connected to the slag plate 3. The top of the first support block 13 is provided with a second connecting groove 16, which is used to connect the inclined plate to the first support block 13.

[0021] The second support block 15 is connected to one end of the top inclined plate 14. The second support block 15 is parallel to the first support block 13. The height of the second support block 15 is lower than the height of the first support block 13. The second support block 15 is fixedly connected to the bottom of the slag plate 3.

[0022] The top surface of the inclined plate 14 is provided with several protrusions, which are used to offset the impact of steel slag. One end of the inclined plate 14 is movably connected to the second connecting groove 16 of the first support block 13 to reduce impact resonance and increase the service life of the inclined plate 14.

[0023] The slag discharge channel 6 has a U-shaped structure, and the U-shaped cross-section of the slag discharge channel 6 is the same as the U-shaped cross-section of the slag discharge head 2. The slag discharge channel 6 is composed of a channel plate 7, a second limiting rod 5, and a third limiting rod 8. The channel plate 7 has a U-shaped structure, and the upper part of the inside of the channel plate 7 is provided with the second limiting rod 5 and the third limiting rod 8. The second limiting rod 5 and the third limiting rod 8 are parallel to each other. The bottom of the channel plate 7 is provided with positioning blocks, and the positioning blocks consist of at least three blocks.

[0024] One end of the channel plate 7 is provided with a first connecting plate 9, and the other end of the channel plate 7 is provided with a second connecting plate 18. The first connecting plate 9 is provided with a first connecting edge 12. The first connecting edge 12, the first connecting plate 9 and the channel plate 7 together form a first connecting groove 10. A third connecting groove 17 is provided between the second connecting plate 18 and the channel plate 7. The second connecting plate 18 is inserted into a fourth connecting groove 21. The third connecting groove 17 is connected to the second connecting edge 20 on the slag discharge plate 3 so that the channel plate 7 is connected to the slag discharge plate 3.

[0025] The opening directions of the first connecting groove 10 and the third connecting groove 17 are opposite. The first connecting groove 10 and the third connecting groove 17 are used to connect two adjacent channel plates.

[0026] The first limiting rod 1, the second limiting rod 5, and the third limiting rod 8 have the same structure. The first limiting rod 1, the second limiting rod 5, and the third limiting rod 8 are parallel to each other. The first limiting rod 1, the second limiting rod 5, and the third limiting rod 8 are all cylindrical or prismatic structures.

[0027] In Example 1, the composite alloy casting integrating thermal shock resistance and wear resistance is used by first preparing a foundation in the blast furnace slag ditch, then placing the alloy casting into the blast furnace slag ditch. Positioning is achieved using the positioning block 11 and pre-reserved grooves within the blast furnace slag ditch, ensuring precise installation. Then, each section of the channel plate 7 is connected to the blast furnace slag ditch using connecting plates and connecting grooves, according to the ditch's length. Next, a slag discharge head 2 is installed directly below the slag discharge point, ensuring the anti-slag-falling device within the slag discharge head 2 is positioned directly below the slag discharge point. During the installation of the slag discharge plate 3 and the channel plate 7… The use of a hoisting limit rod ensures the precision of the alloy casting and facilitates faster installation. After installation, the limit rod can be cut off. The angle of the inclined plate 14 of the anti-slag device can be calculated based on the actual amount of slag, which maximizes the service life of the anti-slag device. When replacing the inclined plate 14, only the inclined plate 14 and the second support block 15 need to be replaced. Due to the use of an alloy casting with an anti-slag device, its service life is greatly increased, and it is more conducive to the rigidity of the alloy casting during installation and transportation, thus ensuring the precision of the alloy casting.

[0028] The parts of this invention not described in detail are prior art. Although the invention has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of the invention. However, those skilled in the art should understand that various changes in form and detail can be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, and all such changes are within the scope of protection of the invention.

Claims

1. A composite alloy casting integrating thermal shock resistance and wear resistance, including a slag head, a slag channel, and a limiting rod. The slag channel is equipped with a slag head at one end. The slag head and slag channel have a U-shaped structure. A limiting rod is provided inside the slag head and slag channel. The limiting rod is used to maintain the rigidity of the U-shaped structure of the slag head and slag channel and prevent deformation of the slag head and slag channel. A positioning block is provided at the bottom of the slag head and slag channel. The positioning block facilitates the positioning when installing the alloy casting.

2. The composite alloy casting integrating thermal shock resistance and wear resistance according to claim 1, characterized in that: The slag discharge head consists of a first limiting rod, a slag discharge plate, a positioning block, and an anti-slag discharge device. The slag discharge plate has a U-shaped structure, and the first limiting rod is located inside the U-shaped structure. The first limiting rod is located at the upper part of the U-shaped structure. An anti-slag discharge device is located on the bottom surface of the slag discharge plate. A positioning block is located at the bottom of the slag discharge plate. The anti-slag discharge device consists of a first support block, an inclined plate, and a second support block. The first support block and the second support block are respectively connected to the bottom surface of the slag discharge plate. An inclined plate is located between the first support block and the second support block.

3. The composite alloy casting integrating thermal shock resistance and wear resistance according to claim 2, characterized in that: One end of the slag discharge plate is provided with a third connecting plate, one end of which is connected to the slag discharge plate body, and the other end of the third connecting plate is provided with a second connecting edge. The second connecting edge, the third connecting plate, and one end of the slag discharge plate body together form a fourth connecting groove.

4. The composite alloy casting integrating thermal shock resistance and wear resistance according to claim 3, characterized in that: The first support block has a rectangular structure. The bottom of the first support block is fixedly connected to the slag plate. The top of the first support block is provided with a second connecting groove, which is used to connect the inclined plate to the first support block.

5. The composite alloy casting integrating thermal shock resistance and wear resistance according to claim 4, characterized in that: The second support block is connected to one end of the top inclined plate. The second support block is parallel to the first support block. The height of the second support block is lower than that of the first support block. The second support block is fixedly connected to the bottom of the slag discharge plate.

6. The composite alloy casting integrating thermal shock resistance and wear resistance according to claim 5, characterized in that: The top surface of the inclined plate is provided with several protrusions, which are used to offset the impact of steel slag. One end of the inclined plate is movably connected to the second connecting groove of the first support block to reduce impact resonance and increase the service life of the inclined plate.

7. The composite alloy casting integrating thermal shock resistance and wear resistance according to claim 1, characterized in that: The slag discharge channel has a U-shaped structure, and the U-shaped cross-section of the slag discharge channel is the same as the U-shaped cross-section of the slag discharge head. The slag discharge channel is composed of a channel plate, a second limiting rod, and a third limiting rod. The channel plate has a U-shaped structure, and the upper part of the channel plate is provided with a second limiting rod and a third limiting rod. The second limiting rod and the third limiting rod are parallel to each other. The bottom of the channel plate is provided with positioning blocks, and there are at least three positioning blocks.

8. The composite alloy casting with integrated thermal shock resistance and wear resistance according to claim 7, characterized in that: One end of the channel plate is provided with a first connecting plate, and the other end of the channel plate is provided with a second connecting plate. The first connecting plate is provided with a first connecting edge. The first connecting edge, the first connecting plate, and the channel plate together form a first connecting groove. A third connecting groove is provided between the second connecting plate and the channel plate. The second connecting plate is inserted into a fourth connecting groove. The third connecting groove is connected to the second connecting edge on the slag discharge plate to connect the channel plate with the slag discharge plate.

9. The composite alloy casting with integrated thermal shock resistance and wear resistance according to claim 8, characterized in that: The opening directions of the first connecting groove and the third connecting groove are opposite, and the first connecting groove and the third connecting groove are used to connect two adjacent channel plates.

10. The composite alloy casting integrating thermal shock resistance and wear resistance according to claim 2, characterized in that: The first, second, and third limiting rods have the same structure and are parallel to each other. All three limiting rods are cylindrical or prismatic in shape.

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