Novel jet quick freezing device for steel pipe roller-hearth furnace
A technology for roller hearth furnaces and steel pipes, which is applied to furnaces, heat treatment furnaces, furnace types, etc., and can solve problems such as economic losses and cooling surfaces that cannot be cooled
Inactive Publication Date: 2010-08-25
苏州工业园区姑苏科技有限公司
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Problems solved by technology
However, in actual use, the cooling water only cools the local area, and the cooling surface of some parts cannot be cooled to the phenomenon, which brings a certain loss to the economy.
Method used
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[0014] As shown in the accompanying drawings, a new type of steel pipe roller hearth furnace jet flow cooling device, including a furnace body, the furnace body is provided with a water-cooling jacket device, the water-cooling jacket device is arranged in parallel on the furnace body, so that the workpiece can be cooled in water Moderate to uniform cooling, the furnace body is provided with a transmission device, the upper part of the transmission device is provided with a circulating air upper pipe, and the lower part is provided with a circulating air lower pipe, and the circulating air upper pipe and the circulating air lower pipe are respectively connected with The air inlet of the circulating air duct is connected, and there is an air outlet of the circulating air duct above the upper pipe of the circulating air. The small holes set on the top blow cold air to the workpiece to make it cool quickly. In order to make the workpiece cool evenly, the small holes can be set in d...
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The invention relates to a novel jet quick freezing device for a steel pipe roller-hearth furnace. The device comprises a furnace body, wherein a water jacket device is arranged on the furnace body; a transmission device is arranged in the furnace body; an upper circulation air pipe is arranged above the transmission device, and a lower circulation air pipe is arranged under the transmission device; the upper circulation air pipe and the lower circulation air pipe are connected with an air inlet of a circulation air duct respectively; and an air outlet of the circulation air duct is formed above the upper circulation air pipe. The device can effectively avoid the phenomenon that partial cooling surface cannot be cooled due to the fact that cooling water only cools the local part, and ensures that the steel pipe in a jet quick freezing section can be cooled by air at the highest speed by combining auxiliary equipment air cooling and the water jacket, thereby completing a normalizing process, realizing tissue conversion from austenite to pearlite, and ensuring that the quality of the normalized steel pipe can achieve proper hardness, microstructure and mechanical performance.
Description
Technical field: [0001] The invention relates to a novel jet-flow rapid cooling device for a steel pipe roller hearth furnace. Background technique: [0002] In the prior art, the water cooling method is generally adopted to cool the steel pipe at the fastest speed, so as to realize the structural transformation from austenite to pearlite, thereby completing the normalizing process. However, in actual use, the cooling water only cools the part, and the cooling surface of some parts cannot be cooled to the phenomenon, which brings certain losses to the economy. Invention content: [0003] In order to solve the above-mentioned technical problems, the present invention provides a novel steel pipe roller hearth furnace spray cooling device. [0004] The technical solution adopted by the present invention to solve the technical problem is: a novel steel pipe roller hearth furnace spray flow cooling device, including a furnace body, a water cooling jacket device is provided on ...
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Inventor 景国荣邹懿钱林妹张文
Owner 苏州工业园区姑苏科技有限公司