Smoke exhaust device of steel rolling heating furnace

By using cooling water to absorb the flue gas heat and filter particles in the smoke exhaust device of the steel rolling heating grate, the problem of flue gas heat and particles damaging the fan is solved, and the service life of the fan is extended.

CN222688864UActive Publication Date: 2025-03-28TANGSHAN FENGRUN DISTRICT BAOTONG STEEL CO LTD
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Patent Information

Application Number
CN202421276840.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-05
Publication Date
2025-03-28
Estimated Expiration
2034-06-05

AI Technical Summary

Technical Problem

In the smoke exhaust device of the steel rolling heating grate, the heat and particles in the flue gas will damage the fan, resulting in a shortening of its service life.

Method used

A smoke exhaust device including a smoke exhaust pipe, a spiral pipe, an extension pipe and a fan is designed. By injecting cooling water into the spiral pipe, the heat in the flue gas is absorbed, and particles are filtered using a filter net and an electric push rod to prevent them from affecting the fan.

Benefits of technology

It effectively reduces the impact of smoke heat on the fan, extends the service life of the fan, and prevents particles from damaging the fan blades.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model discloses a steel rolling heating furnace smoke exhaust device which comprises a smoke exhaust pipe, a spiral pipe is fixedly arranged on the smoke exhaust pipe in an embedded mode, an extension pipe is fixedly arranged on one side of the smoke exhaust pipe, a fan is fixedly arranged in one side of the extension pipe, a hole groove is formed in the bottom end of the extension pipe, and a fan is fixedly arranged in the hole groove. A collecting mechanism convenient for collecting dust is arranged below the extension pipe, a filtering mechanism convenient for filtering particles is arranged in the extension pipe, the filtering mechanism comprises a filter screen, an electric push rod and a cleaning plate, and the filter screen is fixed on the inner side wall of the extension pipe. The fan is started, the cooling water pipeline is connected to one side of the spiral pipe, cooling water is injected into the spiral pipe, heat is absorbed by the cooling water when flue gas is exhausted, and then the flue gas is exhausted through the other side of the spiral pipe, so that the flue gas heat is reduced, the influence of the heat on the fan is reduced, and the service life of the fan is prolonged; and then the flue gas is filtered by the filter screen to prevent particles from influencing fan blades.
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