Circulating cooling system and cooling method for bell-type annealing furnace

By optimizing the cooling water flow direction and improving the cooling system equipment structure, the problems of high cooling water temperature and low water flow in the circulating cooling system of the cover annealing furnace are solved, and effective cooling of the fan and furnace table is achieved, avoiding scaling, and improving the operating stability and output quality of the equipment.

CN119710189APending Publication Date: 2025-03-28LIUZHOU IRON & STEEL CO LTD
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Patent Information

Application Number
CN202510137162.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

In the existing hood annealing furnace circulation cooling system, the cooling water has high hardness, small flow rate and slow flow rate, which leads to excessive water temperature, easy scaling, affecting the water flow, causing unstable equipment operation, and affecting output and quality.

Method used

By optimizing the cooling water flow direction and cooling system equipment, the structure of the inner cover water tank and the stove water tank is modified, the inlet pipe and the flushing discharge pipe are added, and the discharge cooler with pipe fittings + plate-type heat exchange structure is used, and the acid is used for circulating acid washing and descaling.

Benefits of technology

It effectively reduces the cooling water temperature, ensures effective cooling of the fan and furnace, avoids scaling, increases water flow, ensures normal operation of the equipment, extends the equipment life, reduces fault time, and improves operating rate.

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Abstract

The invention provides a bell-type annealing furnace circulating cooling system which comprises a coil base, an inner cover, a fan, a diffusion cooler, a water inlet pipe, a first connecting pipe, a second connecting pipe, a third connecting pipe and a water return pipe, a coil base water tank, a coil base water inlet and a coil base water outlet are arranged in the coil base, and an inner cover water tank, an inner cover water inlet and an inner cover water outlet are arranged in the inner cover. The fan is provided with a fan cooling channel, a fan water inlet and a fan water outlet, the diffusion cooler is provided with a cooler cooling channel, a cooler water inlet and a cooler water outlet, the water inlet pipe is connected with the fan water inlet, and the two ends of the first connecting pipe are connected with the fan water outlet and the inner cover water inlet respectively. Two ends of the second connecting pipe are respectively connected with the inner cover water outlet and the coil base water inlet, two ends of the third connecting pipe are respectively connected with the coil base water outlet and the cooler water inlet, and the water return pipe is connected with the cooler water outlet. The cover type annealing furnace can be effectively cooled.
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