Gas injection system and metallurgical plant
By installing ceramic inserts on the cooling plates of blast furnaces, vertical furnaces, or metallurgical furnaces, the gas injection system solves the problem of easy damage to gas injectors in high-temperature and corrosive environments, achieving higher durability and productivity, and reducing operating costs and CO2 emissions.
CN116249791BActive Publication Date: 2026-05-19PAUL WURTH SA
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Patent Information
- Application Number
- CN202180066125.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2020-09-28
- Filing Date
- 2021-09-22
- Publication Date
- 2026-05-19
- Estimated Expiration
- 2041-09-22
AI Technical Summary
Technical Problem
In the prior art, gas injectors are easily damaged in corrosive and high-temperature environments, and are difficult to install stably on the cooling plates of blast furnaces, vertical furnaces or metallurgical furnaces, resulting in insufficient durability and versatility.
Method used
The gas injection system employs ceramic inserts, with nozzles passing through cooling plates and furnace walls. The injectors are adjustable in length to adapt to different environments, and the combination of active and passive cooling ensures gas tightness and durability.
Benefits of technology
It improves the durability and versatility of gas injectors, reduces operating costs, decreases coke consumption and CO2 emissions, and increases productivity.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention relates to a gas injection system for a blast furnace, shaft furnace, or metallurgical furnace comprising a furnace wall (12) and a cooling panel (18), wherein the gas injection system comprises: • a gas distribution duct (14); • one or more injectors (16) having a nozzle, wherein the nozzle comprises a ceramic insert (52), wherein the cooling element (18) has a hot side which is remote from the furnace wall (12), wherein a protrusion (54) is attached to the hot side of the cooling panel, wherein the ceramic insert (52) passes through the furnace wall and the cooling panel and the protrusion on the cooling panel, and wherein the ceramic insert (52) has an adjustable length such that: the ceramic insert protrudes into the interior of the furnace; or the ceramic insert is flush with the hot face of the cooling panel (18); or the ceramic insert is held slightly recessed from the hot face of the cooling panel (18).
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