Copper liquid slag stopping brick

Abstract

The utility model discloses a copper liquid slag stopping brick relates to copper liquid slag stopping brick field, including combination brick body and install combination brick body's tundish, wherein, the inside both sides of tundish are provided with the sliding insertion slot for the both ends of combination brick body and insert, the combination brick body includes upper brick body and lower brick body, the upper brick body and lower brick body top all are provided with the flow guide groove, the flow guide groove sets as the trapezoidal structure of gradually expanding along copper liquid flowing direction, according to need can dismantle upper brick body and lower brick body, make upper brick body install in higher sliding insertion slot, and lower brick body is respectively in the inside of lower height's sliding insertion slot, utilize upper brick body and lower brick body and form multiple flow through chamber in the inside of tundish, utilize the multiple brick body with height difference can buffer the impact force of copper liquid, improve the probability that the slag floats in the tundish, and make the one end with flow guide groove set down in the inside of sliding insertion slot, and copper liquid can flow through the flow guide groove conveniently.

Description

Technical Field

[0001] This utility model relates to the field of copper liquid slag-blocking bricks, and in particular to a copper liquid slag-blocking brick. Background Technology

[0002] During copper smelting and casting, molten copper typically contains slag, oxides (sulfides), and other non-metallic inclusions. These impurities mainly originate from impurity elements in the raw materials, slag entrapment during the smelting process, erosion by refractory materials, and secondary oxidation in the casting system.

[0003] Slag and inclusions can flow into the cast billet or continuously cast billet along with the molten copper, causing defects such as slag inclusions, porosity, and surface cracks in products such as copper rods and copper plates, which seriously affect conductivity, mechanical properties, and subsequent processing performance.

[0004] Therefore, it is necessary to propose a copper liquid slag-blocking brick to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a copper molten metal slag-blocking brick to solve the problem that molten slag and inclusions flow into the cast billet or continuous casting billet with the copper molten metal, causing defects such as slag inclusions, porosity, and surface cracks in copper rods, copper plates, and other products, which seriously affect conductivity, mechanical properties, and subsequent processing performance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a copper liquid slag-blocking brick, comprising:

[0007] Composite brickwork and intermediate mortar for installing composite brickwork;

[0008] The intermediate package has sliding slots on both sides inside for inserting the two ends of the combined bricks.

[0009] The combined brick body includes an upper brick body and a lower brick body. The top of both the upper brick body and the lower brick body is provided with a flow guide groove. The flow guide groove is configured as a trapezoidal structure that gradually expands along the flow direction of the copper liquid.

[0010] The bottom end of the lower brick is designed to be a pointed shape corresponding to the bottom of the intermediate package;

[0011] The upper and lower bricks are detachably connected.

[0012] Preferably, the bottom end of the lower brick is fixed with a fitting block, which is engaged with the guide groove at the top of the upper brick.

[0013] Preferably, both sides of the upper and lower bricks are fixed with sliders, and the top of the slider of the upper brick is embedded with a fixing screw;

[0014] The bottom thread of the fixing screw is engaged with the slider of the lower brick body.

[0015] Preferably, multiple sliding slots are provided, and the multiple sliding slots are distributed at equal distances along the length direction of the intermediate package, and the bottom heights of the multiple sliding slots are different.

[0016] Preferably, the outer side of the composite brick body is covered with an erosion-resistant layer.

[0017] Preferably, the upper and lower brick bodies are provided with through-hole channels, and the channels are filled with volatile sacrificial materials.

[0018] Preferably, a temperature measuring hole is provided on one side of the interior of the intermediate package, and an outlet is connected to the bottom of one end of the intermediate package.

[0019] The technical effects and advantages of this utility model are as follows:

[0020] 1. The upper and lower bricks can be disassembled as needed, so that the upper brick is installed in a higher sliding slot and the lower brick is installed in a lower sliding slot. The upper and lower bricks form multiple flow chambers inside the intermediate bale.

[0021] 2. The bottom end of the lower brick and the bottom end of the tundish interior are fitted together, allowing the molten copper to flow through the top of the lower brick. The molten copper passing through the lower brick can flow through the bottom end of the upper brick, slowing down the flow rate of the molten copper. The multiple bricks with different heights can buffer the impact force of the molten copper, increasing the probability of the slag floating in the tundish. The upper brick is placed upside down inside the sliding slot, with the end with the guide groove facing downwards, so that the molten copper can flow through the guide groove.

[0022] 3. Due to the presence of a guide channel with a trapezoidal structure that gradually expands along the direction of copper flow, the flow velocity of the copper liquid is reduced, causing the less dense slag to float to the surface of the copper liquid due to buoyancy, while the pure copper liquid passes through the bottom of the channel preferentially.

[0023] 4. The upper and lower brick bodies have through-hole channels filled with volatile sacrificial material, such as paraffin wax or polyethylene microspheres. The internal pores slowly release gas, forming a micro-flow layer on the surface of the molten copper, thus inhibiting slag particle settling. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the copper liquid slag-blocking brick of this utility model.

[0025] Figure 2 This is a schematic diagram of the composite brick of this utility model.

[0026] Figure 3 This utility model Figure 1 Enlarged diagram of point A in the middle.

[0027] Figure 4This is a schematic diagram of the disassembly and installation structure of the combined brick body of this utility model.

[0028] In the diagram: 1. Intermediate liner; 2. Outlet; 3. Temperature measuring hole; 4. Sliding slot; 5. Combined brick body; 6. Upper brick body; 7. Lower brick body; 8. Fixing screw; 9. Guide channel; 10. Interlocking block; 11. Slider. Detailed Implementation

[0029] This utility model provides, for example Figures 1-4 The copper liquid slag retaining brick shown includes:

[0030] The combined brick body 5 and the intermediate package 1 for installing the combined brick body 5;

[0031] The intermediate package 1 has sliding slots 4 on both sides inside for the two ends of the combined brick 5 to be inserted. There are multiple sliding slots 4, which are distributed at equal distances along the length of the intermediate package 1, and the bottom heights of the multiple sliding slots 4 are different.

[0032] The composite brick body 5 includes an upper brick body 6 and a lower brick body 7. Both the upper brick body 6 and the lower brick body 7 have a guide groove 9 at their top ends. The guide groove 9 is a trapezoidal structure that gradually expands along the direction of copper liquid flow. The upper brick body 6 is a rectangular structure that corresponds to the interior of the intermediate ladle 1.

[0033] The upper brick body 6 and the lower brick body 7 are detachably connected.

[0034] like Figure 4 As shown, the upper brick 6 and the lower brick 7 can be disassembled as needed, so that the upper brick 6 is installed in the higher sliding slot 4, and the lower brick 7 is inside the lower sliding slot 4. The upper brick 6 and the lower brick 7 are used to form multiple flow chambers inside the intermediate package 1.

[0035] The bottom end of the lower brick 7 and the bottom end of the interior of the tundish 1 are in contact with each other, so that the molten copper flows through the top of the lower brick 7. The molten copper passing through the lower brick 7 can flow through the bottom end of the upper brick 6, which slows down the flow rate of the molten copper. The impact force of the molten copper can be buffered by the multiple bricks with different heights, which increases the probability of the slag floating in the tundish 1.

[0036] At the same time, the upper brick 6 can be placed upside down inside the sliding slot 4, with the end with the guide groove 9 facing downwards, so that the copper liquid can flow through the guide groove 9.

[0037] Because of the guide channel 9 and the trapezoidal structure of the guide channel 9 which gradually expands along the flow direction of the copper liquid, the flow velocity of the copper liquid is reduced (Bernoulli's principle), so that the less dense slag floats to the surface of the copper liquid due to buoyancy, while the pure copper liquid passes through the bottom of the channel preferentially.

[0038] The bottom of the lower brick 7 is designed to be a pointed shape that corresponds to the bottom of the inner part of the intermediate package 1;

[0039] A fitting block 10 is fixed at the bottom of the lower brick body 7, and the fitting block 10 is snapped into the guide groove 9 at the top of the upper brick body 6.

[0040] Both sides of the upper brick body 6 and the lower brick body 7 are fixed with sliders 11. The top of the slider 11 of the upper brick body 6 is embedded with a fixing screw 8; the bottom of the fixing screw 8 is threaded into the slider 11 of the lower brick body 7.

[0041] In the actual operation of this utility model, the upper brick body 6 and the lower brick body 7 can be fixed together by fixing screws 8, which makes it easy to connect them.

[0042] The outer side of the composite brick body 5 is covered with an erosion-resistant layer.

[0043] The upper brick body 6 and the lower brick body 7 have through-hole channels filled with volatile sacrificial material, which is paraffin wax or polyethylene microspheres. The internal pores slowly release gas (sacrificial material volatilization), forming a micro-airflow layer on the surface of the copper liquid, thus inhibiting slag particle settling.

[0044] A temperature measuring hole 3 is provided on one side of the interior of the intermediate package 1, and an outlet 2 is connected to the bottom of one end of the intermediate package 1.

Claims

1. A copper molten metal slag-blocking brick, characterized in that, include: The composite brick body (5) and the intermediate package (1) for installing the composite brick body (5); The intermediate package (1) has sliding slots (4) on both sides inside for the two ends of the combined brick body (5) to be inserted; The combined brick body (5) includes an upper brick body (6) and a lower brick body (7). The top of both the upper brick body (6) and the lower brick body (7) are provided with a guide groove (9). The guide groove (9) is configured as a trapezoidal structure that gradually expands along the flow direction of the copper liquid. The bottom end of the lower brick (7) is set to be a pointed shape corresponding to the bottom of the middle package (1); The upper brick body (6) and the lower brick body (7) are detachably connected.

2. The copper molten metal slag-blocking brick according to claim 1, characterized in that: The bottom end of the lower brick (7) is fixed with a fitting block (10), which is engaged with the guide groove (9) at the top of the upper brick (6).

3. The copper molten metal slag-blocking brick according to claim 2, characterized in that: Both sides of the upper brick body (6) and the lower brick body (7) are fixed with sliders (11), and the top of the slider (11) of the upper brick body (6) is embedded with a fixing screw (8). The bottom thread of the fixing screw (8) is engaged with the slider (11) of the lower brick body (7).

4. The copper molten metal slag-blocking brick according to claim 1, characterized in that: The sliding slot (4) has multiple openings, and the multiple sliding slots (4) are distributed at equal distances along the length direction of the intermediate package (1), and the bottom heights of the multiple sliding slots (4) are different.

5. A copper molten metal slag-blocking brick according to claim 4, characterized in that: The composite brick body (5) is covered with an erosion-resistant layer on the outside.

6. The copper molten metal slag-blocking brick according to claim 1, characterized in that: The upper brick body (6) and the lower brick body (7) are provided with through air channels, and the air channels are filled with volatile sacrificial materials.

7. The copper molten metal slag-blocking brick according to claim 1, characterized in that: A temperature measuring hole (3) is provided on one side inside the intermediate package (1), and an outlet (2) is connected to the bottom of one end of the intermediate package (1).

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