Smelt Spout Cleaning Device

The smelt spout cleaning device addresses positional inaccuracies due to thermal expansion and high temperatures by using indirect positional information acquisition and controlled cleaning rod movement, ensuring thorough and automatic cleaning.

JP2026084370APending Publication Date: 2026-05-21MITSUBISHI HEAVY INDUSTRIES POWER IDS CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
MITSUBISHI HEAVY INDUSTRIES POWER IDS CO LTD
Filing Date
2024-11-11
Publication Date
2026-05-21

AI Technical Summary

Technical Problem

Existing smelt spout cleaning devices fail to account for the thermal expansion of the furnace, causing inaccuracies in positioning the cleaning rod due to changes in the smelt spout's position, and the high temperature of the smelt makes direct positional information acquisition difficult.

Method used

A smelt spout cleaning device with a cleaning rod, position sensor, and control device that uses spout reference and point reference position information to adjust for thermal expansion, allowing indirect positional information acquisition and precise cleaning rod movement.

Benefits of technology

Enables effective and automatic cleaning of the smelt spout by accurately accounting for thermal expansion and high-temperature conditions, improving positional accuracy and ensuring thorough cleaning.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2026084370000001_ABST
    Figure 2026084370000001_ABST
Patent Text Reader

Abstract

To provide a smelt spout cleaning device that can more effectively and automatically clean the inside of the smelt spout. [Solution] A smelt spout cleaning device for cleaning a smelt spout through which smelt flowing out from at least one outlet formed in the furnace of a soda recovery boiler flows comprises a cleaning rod that can move back and forth within the smelt spout, a position sensor capable of acquiring point current position information which is position information of at least one predetermined point in the furnace, and a control device that controls the movement of the cleaning rod. The control device includes a storage unit that stores spout reference position information which is position information of the smelt spout before the fuel is burned in the furnace and point reference position information which is position information of at least one predetermined point, a spout current position information acquisition unit that acquires spout current position information which reflects the difference between the point current position information and the point reference position information in the spout reference position information, and a cleaning rod moving unit that moves the cleaning rod based on the spout current position information.
Need to check novelty before this filing date? Find Prior Art