Horizontal continuous unmuffled light annealing equipment of stainless steel band

Abstract

The invention discloses a horizontal continuous non-muffle bright annealing device of a stainless steel strip comprises a horizontal continuous non-muffle furnace (16), a cooling device and a transmission system. The horizontal continuous non-muffle furnace (16) comprising an electrothermal body arranged in a hearth, the full length of the horizontal continuous non-muffle furnace (16) is 20 meters to 240 meters. The hearth of the horizontal continuous non-muffle furnace (16) is an external sealed whole hearth or a plurality of external sealed hearths which are communicated with each other. The interior of the hearth of the horizontal continuous non-muffle furnace (16) or the interior of a connecting cavity (26) among the hearths is provided with a plurality of refractory rollers (18) for holding the stainless steel strip. By adopting the annealing device, the yield of the stainless steel strip annealing is increased by many folds, which greatly reduces the energy consumption and energy consumption ratio.

Description

technical field [0001] The invention relates to a stainless steel strip annealing equipment of pipeline operation type, in particular to a stainless steel strip horizontal continuous muffle-free bright annealing equipment. Background technique [0002] According to common sense, the cold-rolled stainless steel strip must be bright annealed before it can meet the user's requirements. [0003] Due to the different requirements for furnace material, insulating gas, cooling section structure, etc., the conventional annealing equipment for common steel strips or other metal strips is not suitable for bright annealing of stainless steel strips. [0004] The bright annealing equipment for stainless steel strips in the prior art generally adopts an electrothermal muffle annealing furnace, that is, the electric heating body is closely attached to the outer wall of the muffle, that is, a closed furnace. After the furnace is heated, the stainless steel strip is heated by the heat radia...

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Problems solved by technology

In actual use, it happens from time to time that the electric heating element is damaged due to the deflection of the steel belt, which not only increases the equipment cost and maintenance cost, but also affects the normal progress of the annealing production process.

[0008] 3. Since the stainless steel strip to be annealed is not cleaned before the stainless steel strip enters the muffle-free bright annealing furnace, the oil residue and dust residue left on the surface of the stainless steel strip in the previous process will be removed during the high-temperature annealing process and subsequent rapid cooling. Solidified on the surface of the stainless steel strip during the process, seriously affecting the quality of the stainless steel strip

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