An in-furnace sootblower for a shaft furnace

By designing an in-furnace soot blowing device for vertical furnaces, the problem of ash adhesion affecting heat dissipation was solved, achieving efficient dust removal, reducing production costs and time losses, and ensuring the performance of steel strips.

CN224517453UActive Publication Date: 2026-07-17JIANGSU YONGJIN METAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU YONGJIN METAL TECHNOLOGY CO LTD
Filing Date
2025-08-04
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

During the annealing furnace production process, furnace ash adheres to the surface of the heat exchanger, affecting heat dissipation, leading to a decline in the performance of the steel strip and a shortened service life of the rubber roller. Frequent ash cleaning affects output and increases costs.

Method used

Design an in-furnace soot blowing device for a vertical furnace. The device blows the soot into the heat exchanger through an air pipe and nozzle. The dust is collected and discharged by a dust collection box. The air supply is uninterrupted by connecting the air pipe connector with a hose, ensuring cleaning efficiency.

Benefits of technology

It reduces downtime, lowers production costs, ensures the steel strip meets performance standards, and achieves efficient dust removal.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224517453U_ABST
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Abstract

The utility model discloses a kind of furnace soot-blowing devices for vertical furnace, including box, the inside of box is provided with guide rod one and guide rod two, guide rod one is equipped with guide sleeve one, guide rod two is equipped with guide sleeve two, and it is connected with blowing pipe between guide sleeve one and guide sleeve two, blowing pipe is equipped with nozzle, nozzle is aligned in the heat exchanger inside the box and is purged, dust produced by purging is collected by the dust collector below and is excluded, and the right side of blowing pipe is communicated with access pipe and internal thread pipe, and internal thread pipe is equipped with screw rod, access pipe is communicated with air pipe joint by hose, and air pipe joint is arranged at the bottom of purging device, the utility model reduces the time of shutdown soot-blowing, saves production cost while ensuring that steel belt performance is qualified.
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Claims

1. An in-furnace sootblowing device for a shaft furnace, characterized in that: Includes a housing (1), inside which are provided a guide rod one (2) and a guide rod two (8), the guide rod one (2) is fitted with a guide sleeve one (4), the guide rod two (8) is fitted with a guide sleeve two (7), and an air blowing pipe (5) is connected between the guide sleeve one (4) and the guide sleeve two (7). The air blowing pipe (5) is equipped with a nozzle (22), and the nozzle (22) is aimed at the heat exchanger (3) located inside the housing (1) to blow it. The dust generated by blowing is collected and discharged by the dust collection box (9) below. The right side of the air blowing pipe (5) is connected to an inlet pipe (6) and an internal threaded pipe (15). The internal threaded pipe (15) is equipped with a screw (16). The inlet pipe (6) is connected to an air pipe connector (13) through a hose (14). The air pipe connector (13) is located at the bottom of the blowing device (12).

2. A sootblowing device for a shaft furnace according to claim 1, characterized in that The left end of the purging device (12) is connected to an end face flange (21), which is fastened to the housing (1) by locking bolts (20). The housing (1) and the purging device (12) are connected in a through manner.

3. The in-furnace sootblowing device for a shaft furnace according to claim 1, characterized in that: The bottom of the dust collection box (9) is provided with a bottom plate (10) and a collection pipe (11).

4. The in-furnace sootblowing device for a shaft furnace according to claim 1, characterized in that: The right end of the screw (16) is connected to a handwheel (17).

5. The in-furnace sootblowing device for a shaft furnace according to claim 1, characterized in that: The housing (1) is provided with a positioning plate (23), and a drive rod (19) is fitted into the threaded hole of the positioning plate (23). A handwheel (18) is connected to the right end of the drive rod (19).

6. The in-furnace soot blowing device for a vertical furnace according to any one of claims 1 to 5, characterized in that: The number of nozzles (22) is set to multiple.