Blast Furnace High Temperature Distributor Chute
Product Description
Blast Furnace High Temperature Distributor Chute
An iron-making shaft furnace with a circular cross section. Steel plate is used as the furnace shell, and the shell is lined with refractory brick. From top to bottom, the blast furnace body is divided into 5 parts: throat, body, waist, belly and hearth. Due to the good economic indicators of blast furnace ironmaking technology, simple process, large production, high labor productivity, and low energy consumption, the iron produced by this method accounts for most of the world's total iron output. During blast furnace production, iron ore, coke, and flux (limestone) for slagging are loaded from the top of the furnace, and preheated air is blown in from the tuyere located at the lower part of the furnace along the periphery of the furnace. At high temperatures, the carbon in coke (some blast furnaces are also injected with auxiliary fuels such as pulverized coal, heavy oil, natural gas) and carbon monoxide and hydrogen generated by the combustion of oxygen in the air will remove the iron ore in the process of rising in the furnace. Oxygen, thereby reducing iron. The molten iron is discharged from the iron hole. The unreduced impurities in the iron ore combine with fluxes such as limestone to form slag, which is discharged from the slag port. The generated gas is discharged from the top of the furnace, and after dust removal, it is used as fuel for hot blast stoves, heating furnaces, coke ovens, boilers, etc. The main products of blast furnace smelting are pig iron, as well as by-products of blast furnace slag and blast furnace gas.
Raw materials and basic principles
The raw materials used for blast furnace smelting are mainly composed of iron ore, fuel (coke) and flux (limestone).
Generally, smelting 1 ton of pig iron requires 1.5-2.0 tons of iron ore, 0.4-0.6 tons of coke, 0.2-0.4 tons of flux, and a total of 2-3 tons of raw materials are required. In order to ensure the continuity of blast furnace production, a sufficient quantity of raw materials is required.
Therefore, whether it is pig iron manufacturers or steel mills purchasing raw materials is particularly important.
Since the blast furnace production is continuous, the first generation of blast furnace (from the opening of the furnace to the overhaul of the furnace is one generation) can continuously produce for several to ten years. During production, iron ore, coke, and flux are continuously charged from the top of the furnace (generally the top is composed of materials and hoppers, and modern blast furnaces are bell-valve tops and bell-free tops), and blow from the tuyere in the lower part of the blast furnace. Into hot air (1000～1300℃), inject fuel such as oil, coal or natural gas. The iron ore charged into the blast furnace is mainly a compound of iron and oxygen. At high temperatures, the coke neutralizes the carbon in the injected material and the carbon monoxide generated by the combustion of the carbon to extract the oxygen from the iron ore to obtain iron. This process is called reduction. Iron ore is made to produce iron through reduction reaction, and molten iron is released from the tap hole. The gangue, coke, and ash in the injection material in the iron ore combine with the flux such as limestone added into the furnace to form slag, which is discharged from the iron tap and the slag outlet respectively. The gas is taken out from the stove top and used as industrial gas after dust removal. Modern blast furnaces can also use the high pressure at the top of the furnace to generate electricity with part of the coal gas exported.
Our Company
Shenyang Hard Welding Surface Engineering Co., LTD is awear resistant sheet for cement high-tech enterprise specializing in processing and manufacturing chromium carbide overlay wear plate and metal base hardfacing materials. Relys on thedomestic institutes, has indepently R&D Chrome Carbide Overlay Wear Plate. At present, customers system solutions inMetallurgy\ lectric Power\ Mining\ Cement and otherindustry can be offered.
We not only offer chromium carbide overlay wear plates and wear materials,at the same time we has also focused on the refurbishment of Wear Resistant Parts, and we can offer the guidances of all kinds of problems and difficulties you may meet for industrial wear fields. we firmly believe that we must be able to Create more social value for industrial wear field by our constantly efforts and pursuits.
Shenyang Hard Welding Surface Engineoring Co.. Ltd. is a high-tech enterprise, which specializing inmanufacturing and processing metal cladding composite wear-resistant steel plate and wear resistant material. Relying on domestic famous insitutes, the company mainly engaged in research & development and manutacturing hard-laced wear-resistant steel plate independently and also provide integrated solutions for wear resistance system to all customers. The product of the company has passed the ISO international qudlity system authentication and the company has more than a dozen of its own technology. In 2007, the company was named high-tech enterprise; and recelved national innovation fund in 2010. Now the company bec omes the domestic well-known enterprise.
Our products are wldely usedin metallurgy, electric power, cement, minIng and other industries. In addition to the domestic market, products are exported to Canada, Australia, Madagascar, South Korea, India, Nigeria, the United Arab Emirates, Oman and other countries. The product quality has got good comments from the domestic and abroad customers. And the company was awarded“ 2009 outstandlng supller" by Samsung enterprise, South Korea.
FAQ
Q1: Why are there so many cracks?
A1. Due to the cooling rates of dissimilar metals, HARD PLATEhardfacing alloy plate alloy steel wear sheets boards on sale is manufactured using a welded process. This process results in high temperatures. During the cooling process, the plate goes through a stress relieving process. This is a natural process and does not effect the performance of the plate. The stress relief cracks should be between 3/4" - 2" apart. There are typically two methods used in situations when the hardfacing side is required to be on the outside of a tight radius resulting in cracks wider than desired. the cracks can be touched up using an appropriate hardfacing wire or electrode.
Q2: What is the best method of attachment?
A2. HARD PLATE hardfacing alloy plate alloy steel wear sheets boards on sale is usually attached by countersunk Bolts, weld studs, perimeter welding, or plug welding. Some methods are better suited than others depending on the specific application. For more detail on each method see the installation section.
Q3: Can this plate be drilled or machined?
A3. No. HARD PLATE hardfacing alloy plate alloy steel wear sheets boards on sale can not be machined or drilled. It can however be ground. Mild steel inserts are used to create countersunk or counter bored holes. HARD PLATE 6+3/8+3/8+5 wear resistant steel plate can be cut using plasma, Grinding wheel saw, or air-arc gouging.
Q4:MOQ? A4.Our product has no limit to quantity, it can be ordered according to customer requirement. Q5:What’s the service life compare with Hardox series? A5.Generally speaking, our bimetallic overlay wear plate is 4.5~8 times than Hardox series in service life.
Product Categories : Chromium Carbide Overlay Blast Furnace Wear Parts > High Temperature Distributor Chute