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Transfer pipe for zinc alloy melt and manufacturing method thereof

A zinc alloy and pipeline technology, applied in pipeline protection, pipeline damage/wear prevention, pipes, etc., can solve problems such as large heat loss, pollution of alloy liquid, long contact time, etc., to reduce oxidation rate, reduce oxidation slag, reduce The effect of contact

Active Publication Date: 2009-06-03
ZHUZHOU SMELTER GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As we all know, the general production process of zinc alloy ingots is to melt solid zinc into a liquid state, add various additive elements to prepare an alloy liquid, and then cast it into a mold. Since the temperature of the zinc alloy liquid is above 500°C, it is difficult for transportation. The requirements for the equipment are very high. Generally, the self-flowing open chute is used to transport the zinc alloy liquid to the mold for casting. The flow is controlled by manual adjustment, which requires manual opening and closing of the furnace. Not only is the casting flow difficult to control, but also the operation process has great potential safety hazards. , it is difficult to realize the automation of production; at the same time, because the zinc release hole is made of cast iron, the furnace body slowly melts and enters the alloy liquid, causing it to bring in iron elements, pollute the alloy liquid, and affect the quality of the alloy
On the other hand, in the process of casting zinc alloy liquid in the chute, since the chute is open, and the distance of zinc liquid transportation is long, the contact time with air is long, the slag rate is high, and the heat loss of zinc alloy liquid is large during the transportation process. , high energy consumption

Method used

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  • Transfer pipe for zinc alloy melt and manufacturing method thereof
  • Transfer pipe for zinc alloy melt and manufacturing method thereof
  • Transfer pipe for zinc alloy melt and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 , figure 2 Shown, a kind of zinc alloy liquid conveying pipeline, it is lined with a layer of lining layer 2 made of refractory material at the inner surface of steel pipe 1, and inner lining layer 2 is the refractory material layer directly stamped on the inner surface of steel pipe. The refractory material layer is made of solid material plus glass water to make a slurry. The composition and weight ratio of the solid material are: 65% of burnt gemstone aggregate, 34.9% of high alumina powder, and 0.1% of sodium fluorosilicate , The weight ratio of the glass water is 5% of the solid material.

[0023] The specific process is as follows: the first step is to design and manufacture an easy-to-burn mold with the inner diameter of the required pipe, and fix it in the center of the pipe; the second step is to prepare the refractory material slurry and tamp the refractory material to fill the inner surface of the pipe In the space between the refractory m...

Embodiment 2

[0025] Such as figure 1 , figure 2 Shown, a kind of zinc alloy liquid conveying pipeline, it is lined with a layer of lining layer 2 made of refractory material at the inner surface of steel pipe 1, and inner lining layer 2 is the refractory material layer directly stamped on the inner surface of steel pipe. The refractory material layer is made of solid material plus glass water to make a slurry. The composition and weight ratio of the solid material are: 75% of burnt gemstone aggregate, 24.2% of high alumina powder, and 0.8% of sodium fluorosilicate , The weight ratio of the glass water is 15% of the solid material.

[0026] The specific process is as follows: the first step is to design and manufacture an easy-to-burn mold with the inner diameter of the required pipe, and fix it in the center of the pipe; the second step is to prepare the refractory material slurry and tamp the refractory material to fill the inner surface of the pipe In the space between the refractory ...

Embodiment 3

[0028] Such as image 3 As shown, a zinc alloy liquid conveying pipeline is lined with an inner lining layer made of a refractory material 2 on the inner surface of a steel pipe 1, and the inner lining layer is an integral refractory material pipe 3 inserted in the steel pipe 1 and The structure fixed on the inner surface of the steel pipe 1 is tamped and fixed by the refractory material 2 .

[0029] Concrete manufacturing process is: the first step, selects the refractory material pipe that the mullite that has formed is made, and it is coaxially fixed in the center of pipeline, second step, prepares refractory material slurry, (with embodiment 1 Same) ramming and filling refractory material between the pipeline and the refractory material pipeline, so that the refractory material pipeline and the inner surface of the steel pipe are rammed and fixed into one, and the thickness of the refractory material is greater than 20 mm. The third step is to dry naturally at room tempera...

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Abstract

The invention relates to a transfer pipe for melting metals and manufacturing method thereof, especially a transfer pipe for zinc alloy melt and manufacturing method thereof. The invention is lining an inside lining layer made from the refractory material on the inner surface. The inside lining layer is directly cast on the refractory material on the inner surface; the invention also sets the steel tube integrated into the pipeline by the amorphous refractory ramming refractory steel construction fixed on the inner surface of the structure. Since the invention of refractory material used in steel-lined floor structure of the refractory layer does not melt in the liquid zinc alloy, non-polluting liquid zinc alloy. It has high strength, high temperature, good thermal insulation performance characteristics, the same time, the invention also has good thermal insulation to reduce the liquid metal in contact with air, thus reducing the oxidation of liquid metal, therefore, can be greatly reduced when the casting alloy oxide slag.

Description

technical field [0001] The invention relates to a molten metal conveying pipeline and its manufacturing process, in particular to a zinc alloy liquid conveying pipeline and its manufacturing process. Background technique [0002] As we all know, the general production process of zinc alloy ingots is to melt solid zinc into a liquid state, add various additive elements to prepare an alloy liquid, and then cast it into a mold. Since the temperature of the zinc alloy liquid is above 500°C, it is difficult for transportation. The requirements for the equipment are very high. Generally, the self-flowing open chute is used to transport the zinc alloy liquid to the mold for casting. The flow is controlled by manual adjustment, which requires manual opening and closing of the furnace. Not only is the casting flow difficult to control, but also the operation process has great potential safety hazards. , it is difficult to realize the automation of production; at the same time, becaus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/02F16L57/04
Inventor 伏东才李瑛罗贱生张庆宜
Owner ZHUZHOU SMELTER GRP
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