1Feb. 992, the first "ceramic cup" produced by Huayu was used in No.7 blast furnace (2580m3) of Angang.
1993, Huayu products, corundum-mullite products, yellow corundum-mullite products and composite brown corundum products won the gold medal in Spark Expo.
1995 The Ministry of Metallurgy issued a production license for high-alumina bricks in blast furnace for Huayu Group.
1997, Huayu group obtained the qualification certificate of self-operated import and export right enterprise.
1998 set up the blast furnace new technology development department, introduced CCDM technology, and provided the whole process services such as structural design, development, research, construction, tapping, etc. for the blast furnace body and the part below the tuyere.
1999, Huayu and University of Science and Technology Beijing * * * jointly developed composite brown corundum, corundum-mullite products and yellow corundum-mullite products combined with in-situ sialon, with sialon content of 5%- 16%.
1999 seminar on application technology of carbon brick ceramic composite lining of blast furnace sponsored by metallurgical science and technology development center of State Metallurgical Bureau and undertaken by Huayu Group. * * * Representatives from 87 units 176 people, and the meeting affirmed the great contribution made by Huayu Group in developing the long-life technology of blast furnace with China characteristics.
1999, passed the ISO9002 international quality system certification of moody's company in Britain, and implemented the Nissin quality work law.
199965438+February, Huayu group obtained the certificate of high-tech products of corundum-mullite composite products.
In 2000, * * * produced more than 65,438+000 "ceramic cups" at home and abroad. The special products for ceramic cups have been upgraded from the first generation to the third and fourth generations, and in-situ Cylons have been put into production.
200 1 year
1, the group company has carried out a comprehensive institutional reform. Over the past 30 years, the enterprises affiliated to the Group have been transformed into joint-stock enterprises. Upon assessment, the effective assets are 1. 1 100 million yuan. The newly merged joint-stock enterprises include Zhengzhou Jixiang Refractory Co., Ltd. and other 1 1 branches, and 6 functional units 1900 employees.
2. A seminar on nonmetallic cooling stave and heterogeneous mosaic hearth of blast furnace was held with the participation of national experts (68 people). Degree to give technical affirmation.
3. The special products for the fifth generation composite brown corundum, corundum-mullite and yellow corundum-mullite ceramic cups based on boron and zirconium, low creep bricks and modified high alumina bricks for three-stone-free hot blast stoves have been developed.
In 2002
1, two invention patents, approved application. (1) Heterogeneous mosaic furnace; (2) Non-metallic cooling stave of blast furnace.
2. The quality system was changed from ISO9002 to ISO-900 1 standard after being audited by Moody's Company in Britain, and it was registered.
3. From 1992 to 2002, according to statistics, Huayu Group supplied a large number of 130 series materials such as blast furnace ceramic cups and 186 hot stoves.
4. The annual sales revenue exceeded 65.438+0.5 billion for the first time, and the product output exceeded 654.38+0. 1 10,000 tons.
In 2003
In June 65438, a silicon brick production branch factory was put into operation, with an annual output of 40,000 tons, which was dedicated to the upper part of the coking furnace-the hot blast stove.
In February and June, the production branch of microporous carbon brick, semi-graphitized carbon brick and molded small carbon block was put into operation, with an annual output of 1.5 tons and specifications of various sizes and models within 500mm× 500mm×1.600mm..
3.8 1 day, the structural material transformation scheme of hot blast stove, the key part of blast furnace, and the material branch factory were put into operation, with an annual output of 1 10,000 tons. The main products are:
Pretreatment of (1) blast furnace lining cooling stave with composite structure
(2) Boron-zirconium-based nonmetallic cooling stave
(3) Pretreating the blast furnace composite structural material, and integrally assembling the vault of the hot blast stove.
(4) Pretreating the composite structural material of the hot blast stove, and integrally assembling the vault of the hot blast stove.
Compared with the original traditional structure, the cost of the above materials is reduced by 50%, the service life is prolonged by 50% and the masonry time is shortened by 50%.
In September, 2006, the professional committee of blast furnace ironmaking of China Metal Society, University of Science and Technology Beijing and Zhengzhou Huayu Refractory Co., Ltd. invited experts from scientific research institutes, design institutes and iron and steel companies to consult and demonstrate three new patented technologies of blast furnace longevity developed by Zhengzhou Huayu Refractory Co., Ltd. in Pingyao, Shanxi. Experts attending the meeting believe that these three technologies are suitable for blast furnaces with different volumes, which have obvious effects on prolonging the life of blast furnaces, reducing energy consumption and saving costs, and have broad promotion value. In recent years, Huayu Company has produced more than 380 series of furnaces for foreign customers, such as metallurgy (blast furnace, hot blast stove, coke oven), cement, glass, ceramics, aluminum smelting, etc. The quality is stable and reliable, and good effects of high efficiency, long life and energy saving have been achieved. The company has first-class production equipment, advanced testing facilities and perfect quality control system. Ensure the product quality is stable and reliable, and the product qualification rate is 100%. The company is an international quality system certification enterprise with ISO900 1-2000 version, which strives for survival by reputation, pays close attention to product quality and wins customers' trust. Promote development with science and technology, pay attention to technological innovation and promote industry progress; To create a first-class brand as the goal, serve customers and promote the development of national industries!