In April 25, 2017, Allied Rongda contracted the slag runner projects of 1#630m³BF and 2#850m³BF of Luanxian Jinma Industrial Co. Ltd. started installation. The main installation site was the channel and the bottom, with a total of more than 160 tons by the overall plan. After communication with technician and party A , the casting installation will be used.
1# blast furnace slag runner has been used for a certain number of years, and there is a certain scouring erosion at the bottom of the slag runner. Therefore, it is planned to repair the slag runner of 1# blast furnace in the maintenance time. And 2# blast furnace has about 25 meters slag runner, the original use of U type metal castings, this time planned to transform with RG-MS ceramic wear-resistant material for overall casting.
The installation of 2# blast furnace slag runner has been completed, and the effect is good. Blast furnace has been blow on, and the running was smoothly; 1# blast furnace slag runner is insatalling now, will be completed today (May 2nd).
Through this transformation, the overall life is greatly over the original casting, and the maintenance frequency and casting consumption are greatly reduced, and the purpose of reducing cost and increasing efficiency is achieved.
The slag runner and the granulation tower is a essential process device of blast furnace slag treatment process, but the harsh working conditions, mainly has the following several forms of failure: acid solution corrosion; high speed water flow with material abrasion; separation of slag and iron is not the net, causing the explosion; high frequency thermal shock. Under the combined action of these four destructive mechanisms, the service life of the conventional wear-resistant layer materials can only reach a short of one or two years life, which is far from the user's requirements. Therefore, our company has set up the special wear-resistant castable for the slag runner and granulation tower. The main features of this product have high strength and abrasion resistance, erosion resistance, good acid and alkali resistance, excellent thermal shock resistance, and do not use organic binder, anti-aging and good weather resistance, safety and environmental friendship, can effectively adapt to the granulation process conditions, can be used in inner lining of slag runner of BF, EAF and Submerged Arc Furnace, wear layer of granulation tower, and various types of silo environment.
According to the field application environment, we can choose four forms of prefabrication, casting, smearing and shotcrete. Tight or the slag runner changed according to the time schedule requirements, you can use the form of prefabricated to install. When you use the prefabricated of slag runner which wear-resistant ceramic made by our company, can be installed directly in the site, short duration and fast installation.
New slag runner or granulation tower is recommended for site casting and pumping, and the whole is better.
For the large installation area of the silo and other, shotcrete technology can be used. The efficiency is high, and the abrasion resistance can reach 90% of the casting process.
The main technical advantages of Rong RG-MS series are as follows:
1, Hardness higher than steel, good abrasion resistance, service life can reach more than 5 years, is two times more than the traditional cast iron trough;
2, Process is flexible, can be used with prefabrication, casting, smearing and spraying form to install according to the needs,and adapt to the environment also;
3, Good weather resistance corrosion damage, there is no electrochemical corrosion, there is no defects of easy to aging using the organic adhesive ;
4, Using nano powder with high strength, safety and environmental friendship;
5, High cost performance, low unit cost.
It can be used for slag runner of various BF, Submerged Arc Furnace and the abrasion resistant working layers of granulation towers, and can be cast in a large scale and can be used for local modification. In addition, it can also be used for the wear-resistant layer of various silo and yard environments, and the service life is greatly improved.
