Stable flow guide channel structure for alloy smelting

Abstract

The stable flow guide channel structure for alloy smelting comprises a conical refractory brick, a cylindrical refractory brick, a first annular clamp and a second annular clamp, the small end of the conical refractory brick is inserted and fixed to the top of the cylindrical refractory brick in the first direction, and a conical flow channel is formed in the conical refractory brick in the first direction; a cylindrical flow channel is formed in the cylindrical refractory brick in the first direction, the top face of the cylindrical flow channel just coincides with the end face of the small head end of the conical flow channel and is communicated with the conical flow channel to jointly form a flow guide channel, the outer side wall of the conical refractory brick is just sleeved with the first annular clamp, and the outer side wall of the cylindrical refractory brick is just sleeved with the second annular clamp. According to the stable flow guide channel structure for alloy smelting, the integrity of the flow guide channel can still be well guaranteed after the refractory bricks crack, filling sand is effectively prevented from being brought into molten steel through cracks, and the refractory bricks can be effectively prevented from being directly cracked and separated.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgical casting, in particular to a stable guide channel structure for alloy smelting. Background Art

[0002] Refractory bricks are refractory materials made by burning refractory clay or other refractory raw materials. They have a certain shape and size and can be used as a guide channel for pouring steel ingots. They are relatively convenient to use.

[0003] However, the refractory bricks used as the flow channel for alloy smelting will crack due to expansion after repeated heating by high-temperature molten steel. If the pouring process is not completed immediately, the cracks will gradually become larger, and filling sand will easily enter the molten steel, thus affecting the quality of the molten steel. If the cracks are directly separated during the pouring process, the molten steel will flow out directly, affecting the safety of the operation. Therefore, how to effectively prevent the cracks in the flow channel from becoming larger or directly splitting and separating during the pouring process has become a problem that needs to be solved. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a stable guide channel structure for alloy smelting, which is used to solve the problem of how to effectively prevent the cracks in the guide channel from becoming larger or directly splitting and separating during the pouring process.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A stable guide channel structure for alloy smelting comprises a conical refractory brick, a columnar refractory brick, a first annular clamp and a second annular clamp, the small head end of the conical refractory brick is inserted and fixed on the top of the columnar refractory brick along a first direction, a conical flow channel is opened inside the conical refractory brick along the first direction, a cylindrical flow channel is opened inside the columnar refractory brick along the first direction, the top surface of the cylindrical flow channel just coincides with the end surface of the small head end of the conical flow channel and they are interconnected to form a guide channel, the first annular clamp is just sleeved on the outer wall of the conical refractory brick, and the second annular clamp is just sleeved on the outer wall of the columnar refractory brick.

[0007] Optionally, the centripetal side of the first annular clamp is inclined along a first direction to fit the outer side wall of the tapered refractory brick.

[0008] Optionally, the first annular clamp is sleeved on the large end of the conical refractory brick.

[0009] Optionally, the second annular clamp is sleeved on the middle part of the columnar refractory brick.

[0010] Optionally, the first annular clamp and the second annular clamp are both iron hoops.

[0011] Optionally, the first annular clamp and the second annular clamp are both integrally formed parts.

[0012] Optionally, the conical refractory bricks can be plugged into the top of the columnar refractory bricks.

[0013] Preferably, an annular groove is provided on the end surface of the small head end of the conical refractory brick along the outer circle of the conical flow channel, and an annular boss is provided on the top surface of the columnar refractory brick along the outer circle of the cylindrical flow channel, and the annular boss can be inserted into the annular groove.

[0014] Optionally, the outer contour of the columnar refractory brick is cylindrical, and the top surface of the columnar refractory brick just coincides with the end surface of the small head end of the conical refractory brick.

[0015] Compared with the prior art, the stable guide channel structure for alloy smelting of the utility model can still well ensure the integrity of the guide channel after the refractory bricks crack, effectively avoid filling sand from being brought into the molten steel through the cracks, and can effectively prevent the refractory bricks from directly cracking and separating. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a stable alloy smelting guide channel structure in one embodiment of the utility model at a viewing angle;

[0017] Figure 2 It is a structural schematic diagram of a stable alloy smelting guide channel structure from another perspective according to an embodiment of the utility model. DETAILED DESCRIPTION

[0018] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the present invention is described in detail below with reference to the embodiments.

[0019] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0020] Please refer to Figure 1 and Figure 2A stable flow channel structure 100 for alloy smelting includes a conical refractory brick 1, a columnar refractory brick 2, a first annular clamp 3 and a second annular clamp 4. The small end of the conical refractory brick 1 is inserted and fixed on the top of the columnar refractory brick 2 along the first direction X. A conical flow channel 11 is opened inside the conical refractory brick 1 along the first direction X. A cylindrical flow channel 21 is opened inside the columnar refractory brick 2 along the first direction X. The top surface of the cylindrical flow channel 21 just coincides with the end surface of the small end of the conical flow channel 11 and is interconnected to form a flow channel. The first annular clamp 3 is just sleeved on the outer wall of the conical refractory brick 1, and the second annular clamp 4 is just sleeved on the outer wall of the columnar refractory brick 2. In this way, when cracks appear in the conical refractory brick 1 or the columnar refractory brick 2, the structure can still be kept intact under the action of the respective annular clamps, thereby ensuring the integrity of the flow channel.

[0021] Optionally, the centripetal side of the first annular clamp 3 is arranged to be inclined along the first direction X, so as to fit the outer wall of the conical refractory brick 1. Such arrangement has a better clamping effect.

[0022] Optionally, the first annular clamp 3 is sleeved on the large end of the conical refractory brick 1. Since the large end of the conical refractory brick is more prone to cracking, arranging it here can better prevent the cracks from getting bigger after the conical refractory brick cracks.

[0023] Optionally, the second annular clamp 3 is sleeved on the middle part of the columnar refractory brick 2. Arranging it here can better prevent the cracks from becoming larger after the columnar refractory bricks are cracked.

[0024] Optionally, the first annular clamp 3 and the second annular clamp 4 are both iron hoops, which has low cost and is not easy to be damaged.

[0025] Optionally, the first annular clamp 3 and the second annular clamp 4 are both integrally formed parts. In this way, the strength of the two annular clamps is better.

[0026] Optionally, the conical refractory brick 1 is pluggable and inserted on the top of the columnar refractory brick 2. This makes it easy to replace the cracked part in time.

[0027] Preferably, an annular groove 12 is provided on the end surface of the small end of the conical refractory brick 1 along the outer ring of the conical flow channel 11, and an annular boss 22 is provided on the top surface of the columnar refractory brick 2 along the outer ring of the cylindrical flow channel 21, and the annular boss 22 can be inserted into the annular groove 12. This arrangement facilitates the insertion of the conical refractory brick and the columnar refractory brick.

[0028] Optionally, the outer contour of the columnar refractory brick 2 is cylindrical, and the top surface of the columnar refractory brick 2 just coincides with the end surface of the small end of the conical refractory brick 1. This saves refractory materials.

[0029] The utility model has a stable guide channel structure for alloy smelting, which can well ensure the integrity of the guide channel through the annular clamp after the refractory bricks are cracked, effectively avoid the filling sand from being brought into the molten steel through the cracks, and can effectively prevent the refractory bricks from directly cracking and separating.

[0030] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, any changes and modifications made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. A stable guide channel structure for alloy smelting, characterized in that: It includes a conical refractory brick, a columnar refractory brick, a first annular clamp and a second annular clamp. The small head end of the conical refractory brick is inserted and fixed on the top of the columnar refractory brick along a first direction. A conical flow channel is opened inside the conical refractory brick along the first direction. A cylindrical flow channel is opened inside the columnar refractory brick along the first direction. The top surface of the cylindrical flow channel just coincides with the end surface of the small head end of the conical flow channel and the two are interconnected to form a guide channel. The first annular clamp is just sleeved on the outer wall of the conical refractory brick, and the second annular clamp is just sleeved on the outer wall of the columnar refractory brick.

2. A stable guide channel structure for alloy smelting as claimed in claim 1, characterized in that: The centripetal side of the first annular clamp is inclined along the first direction to fit the outer side wall of the tapered refractory brick.

3. A stable guide channel structure for alloy smelting as claimed in claim 1, characterized in that: The first annular clamp is sleeved on the large end of the conical refractory brick.

4. A stable guide channel structure for alloy smelting as claimed in claim 1, characterized in that: The second annular clamp is sleeved on the middle part of the columnar refractory brick.

5. A stable guide channel structure for alloy smelting as claimed in claim 1, characterized in that: The first annular clamp and the second annular clamp are both iron hoops.

6. A stable guide channel structure for alloy smelting as claimed in claim 1, characterized in that: The first annular clamp and the second annular clamp are both integrally formed parts.

7. A stable guide channel structure for alloy smelting as claimed in claim 1, characterized in that: The conical refractory brick is pluggably inserted on the top of the columnar refractory brick.

8. A stable guide channel structure for alloy smelting as claimed in claim 7, characterized in that: An annular groove is provided on the end surface of the small head end of the conical refractory brick along the outer circle of the conical flow channel, and an annular boss is provided on the top surface of the columnar refractory brick along the outer circle of the cylindrical flow channel, and the annular boss can be inserted into the annular groove.

9. A stable guide channel structure for alloy smelting as claimed in claim 1, characterized in that: The outer contour of the columnar refractory brick is cylindrical, and the top surface of the columnar refractory brick just coincides with the end surface of the small head end of the conical refractory brick.

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