一种高炉热风炉快速平稳换炉系统
By using compressed air storage tanks and a rapid pressure equalization valve system during the hot blast stove replacement process, and independently pressurizing the hot blast stove with an air source, the problem of fluctuating air supply pressure is solved, enabling rapid and stable hot blast stove replacement and ensuring the stability and efficiency of blast furnace production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TANG STEEL INT ENG TECH CORP
- Filing Date
- 2025-06-17
- Publication Date
- 2026-07-17
AI Technical Summary
During the hot blast stove replacement process, the blast furnace air pressure fluctuates greatly, especially in the initial pressurization stage when the air volume and air pressure drop at the fastest rate and the greatest magnitude, resulting in unstable air supply conditions and affecting the smooth operation of blast furnace production.
The system employs a compressed air storage tank and a rapid pressure equalization valve system to pressurize the hot blast stove through an independent high-pressure air source, avoiding the direct pressurization by using a blower. This ensures balanced pressure inside the hot blast stove and enables a rapid and stable furnace replacement process.
It effectively reduced the fluctuation of air supply pressure during hot blast stove replacement, stabilized the blast furnace air supply pressure, shortened the replacement time, reduced the collapse of material, and ensured the stability and efficiency of blast furnace production.
Smart Images
Figure CN224513534U_ABST
Abstract
Claims
1. A blast furnace hot blast stove quick and smooth stove change system characterized by: It includes a compressed air storage tank (4), a manual shut-off valve (6) at the outlet of the storage tank, a pneumatic quick-cut valve (7) at the outlet of the storage tank, a check valve (8) at the outlet of the storage tank, a rapid equalizing valve (9), a hot air furnace (10), a cold air vent valve (11), a cold air equalizing valve (12) and a cold air shut-off valve (13). The outlet of the compressed air storage tank (4) is equipped with a manual shut-off valve (6) at the outlet of the storage tank, a pneumatic quick-cut valve (7) at the outlet of the storage tank and a check valve (8) at the outlet of the storage tank. The outlet of the compressed air storage tank (4) is connected to multiple hot air furnaces (10) through the rapid equalizing valve (9). Each hot air furnace (10) is connected to a blower through the cold air equalizing valve (12), the cold air shut-off valve (13) and the cold air vent valve (11).
2. A high-speed smooth stove changing system for a hot stove of a blast furnace according to claim 1, characterized in that: The compressed air storage tank (4) is connected to the air compressor (1) or the compressed air pipeline through the storage tank inlet pipe. The compressed air storage tank (4) is equipped with a pneumatic quick-cut valve (2) and a manual shut-off valve (3) at the inlet.
3. A high-speed smooth stove changing system for a hot stove of a blast furnace according to claim 1 or 2, characterized in that: A safety valve (5) is installed on the top of the compressed air storage tank (4).
4. The rapid and stable blast furnace hot blast stove replacement system according to claim 1, characterized in that: The fast pressure equalizing valve (9), cold air pressure equalizing valve (12), and cold air shut-off valve (13) are respectively installed in relation to each hot air furnace (10).