Speech at the mobilization meeting for blast furnace production

No. 6 blast furnace was successfully opened on April 7, 2013, after the opening of the furnace to overcome the company's limited production, poor quality of raw fuel, shortage of raw materials, hot metal tank turnover difficulties, unplanned air break and other unfavorable factors, 1 week to achieve the furnace condition smoothly, 1 month later in the comprehensive furnace grade is only about 49%, it has achieved a good result of 2295 yuan in the cost of ironmaking process.

My name is an engineer of the machinery branch, I feel very honored to stand here today on behalf of advanced scientific and technological workers, this is not my personal honor, it is the honor of all our scientific and technological personnel, here, thank you very much for the company's care and support for our scientific and technological workers.

The company undertook the construction task of the middle repair and transformation of Liugang 3 blast furnace. The 3 blast furnace repair and transformation projects include: feeding system, hot air system, furnace top frame set equipment, blast furnace body, east and west iron yards, rising and descending pipes, gravity dust removal, etc., which are almost a complete set of system disassembly and transformation.

The characteristics of the project are: the construction site is narrow, the lack of crossover of many types of work, the construction period is short, the amount of work is large, and the construction difficulty is greater. As the main force in the repair and transformation of the 3 blast furnaces, the machinery company has concentrated many technical backbones from the beginning of the bidding to make technical preparations for the various difficulties in the project before construction.

In order to formulate a scientific and reasonable construction plan, from mid-June to early August, branch leaders, technicians, constructors, and team leaders frequently enter and exit the site every day, carefully inspect, carefully analyze, and concentrate on research, and do not let go of a suspicious point. And once a week, we hold a workshop, where everyone speaks freely and tells their thoughts and questions. In line with the principle that we are not afraid of problems, we are afraid that there are no problems, and we gather what everyone says and take what everyone thinks.

Collective wisdom is a powerful force with the ability to overcome difficulties and overcome everything. Through everyone's efforts, we finally formulated a feasible construction plan that can ensure safety, quality and duration before the start of construction.

What is a blast furnace foreman? I haven't heard of it ...

It's hard to figure it out for yourself...

The key point before the blast furnace furnace is to maintain the angle of the iron mouth and the depth of the iron buckle, you can use a professional opening machine to open the mouth, and the quality of the plugging iron mouth clay should be qualified and ensure the amount of mud, if necessary (the iron mouth has been paid for a long time) but with waterless cannon mud, each furnace has a special person responsible for doing a good job of your set, and the iron mouth is maintained in place, and the work before the furnace is easy to do; Secondly, according to the safe iron capacity and smelting strength of the blast furnace cylinder, the number of furnace discharges should be arranged, and the slag iron clad car should be arranged according to the theoretical iron removal amount and slag output of each furnace.

Key points of sealing the furnace: 1. 3 days before the break, the furnace can be washed with manganese ore. When simmering the furnace, you can simmer the furnace material according to the open furnace coke ratio, the alkalinity should be acidic, and the furnace temperature is about about .

The angle of the iron mouth is slightly increased in the furnaces before the break, and the slag iron must be exhausted when the wind is rested. After iron, replace the broken air outlet in time, and close the bad cooling wall and other cooling facilities.

2. Block the wind, slag and iron mouth.

Key points of opening the furnace: Determine the number of air outlets according to the simmering time, and generally open the air outlets on both sides of the iron mouth. You can open 6 in about 10 days, and 4 in 15-20 days.

It's not difficult, it's not difficult! Ha ha!

Such a complex and technical problem, such a thing on the Internet, look for it on "Iron and Steel Metallurgy".