Furnace type structure of heating furnace
A heating furnace and furnace type technology, which is applied in the field of metallurgy, can solve the problems of poor steel temperature uniformity, poor heating product quality, low output of furnace and kiln machines, etc., to achieve good steel temperature uniformity, short heating time, Heating product with good quality effect
Inactive Publication Date: 2009-04-08
鞍山市戴维节能科技有限公司
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Problems solved by technology
It leads to large heating black marks on steel materials, poor steel temperature uniformity of steel materials out of the furnace, poor quality of heating products, low furnace thermal efficiency, high unit fuel consumption, long heating time required to eliminate steel material heating black marks, and machine-hour output of kilns. Low, small heating capacity
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Embodiment Construction
[0022] The furnace type structure of a heating furnace in the present invention is realized based on the following working principle of steel material heating.
[0023] 1. According to the theory of heat transfer, there is a significant difference between gas radiation and solid radiation. Solids have a continuous radiation spectrum, which can absorb and emit radiation energy of all wavelengths, while gases can only absorb and emit radiation energy within certain wavelength ranges. Diatomic gases in the furnace gas, such as N 2 , O 2 And its mixture air accounts for about 40-50%, their radiation ability is very small, their blackness coefficient is small, about 0.3, and the furnace radiation heat transfer efficiency is low. The solid radiation ability is strong, its blackness coefficient is about 0.9, and the furnace radiation heat transfer efficiency is high. Furnace gas laminar flow, convective heat transfer coefficient is small, furnace convective heat transfer efficienc...
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A metallurgical heating furnace is provided. The furnace is equipped with a lot of solid radiator barriers made of refractory material at the bottom and the roof of the furnace to hold up, lead and disturb the flow of furnace gas. There are holes, sags or grooves on heel blocks, which are filled with nonmetallic material or metal material with low melting point. The heel blocks are fixed on a lengthwise pipe feeding cooling water at the bottom and are arranged in a line or staggered into two lines. The interval between heel blocks is 40-500 mm. The exterior margin of heat-insulating layer between heel block and pipe is a slope. The invention optimizes the steel heating process and achieves smaller heating stamps. By changing the material of heel blocks, the invention decreases the consumption of metal material, reduces the investment of devices.
Description
technical field [0001] The invention belongs to the technical field of metallurgy and relates to a furnace type structure of a heating furnace, in particular to a furnace type structure of a metallurgical heating furnace. Background technique [0002] In the furnace space of the heating furnace in the metallurgical industry, except for the heated pad (or slider, the same below), the water-cooled furnace bottom tube and the heat insulation wrapping layer of the water-cooled furnace bottom tube, there is an empty space. After the fuel is burned in the furnace, the furnace gas flows in a laminar flow. The steel material moves forward on the block and is heated to a predetermined temperature, then moves out of the heating furnace and enters the next process. Bottom vertical water pipes are located below the block, and the block is fixed on the vertical water pipes at the bottom of the furnace, and continuously flowing cooling water is injected into the vertical water pipes at t...
Claims
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IPC IPC(8): C21C5/42C21D9/70F27B9/02F27B3/00
Inventor 张东平
Owner 鞍山市戴维节能科技有限公司