It's all about what lamps should be used for workshop lighting in steel mills!

　　Introduction: The division of steel plants generally includes four parts: ironmaking, steelmaking, steel rolling and roads in the facry area. Ironmaking includes three parts: raw material yard, sintering, and blast furnace ironmaking; steelmaking also has two forms of electric furnace steelmaking and converter steelmaking; steel rolling is the stage of steel forming, generally including section mills, cold rolling mills, hot rolling mills, and silicon steel Studios and other parts. Each part is different because of its production method, function, structure, environment, etc., and the required LED lighting lamps are also different, but generally local lamps have the functions of good light source penetration, good heat dissipation, dust resistance, and earthquake resistance.

　　A steel plant refers  a plant that produces pig iron, steel, steel, industrial pure iron, and ferroalloys. The steel industry is the most important basic industry in all industrialized countries in the world. Steel output or steel output per capita is an important indicar of the economic strength of various countries. Therefore, doing a good job in the iron and steel industry is an important part of the country's development strategy. As one of the necessary conditions for enterprise production, workshop lighting is closely related  the production efficiency of the enterprise and the occupational health and personal safety of workers, as well as energy conservation and emission reduction. In recent years, safety accidents caused by poor lighting conditions in steel plants are not uncommon, which has also led  low production efficiency and workers' concerns about their own safety. At the same time, unreasonable and high-energy-consumption lighting conditions have also brought a heavy burden on enterprises  save energy and reduce emissions. This article makes a brief analysis of lighting applications in steel plants based on high-efficiency, energy-saving and safe lighting concepts.

　　Which lamps should be used for steel rolling?

　　Raw material plant

　　The raw material plant is a workshop where iron ore, coke, limesne and other ironmaking raw materials are crushed, screened, and transported, and finally enter the blast furnace from the p of the blast furnace. This area includes raw material unloading, raw material srage, raw material crushing, raw material ratio, raw material Of delivery.

　　Raw material unloading is divided in ship unloading dock, train unloading, and aumobile unloading according  the mode of transportation. The ship unloading dock is mainly used for unloading and transporting the ship  the sckyard in the future, where the lighting is divided in gantry crane lighting and transportation belt lighting. Gantry crane lighting generally installs the lamps on the gantry crane, and the gantry crane vibrates greatly during the loading and unloading process, so the lamps must be used with strong earthquake resistance lamps. At the same time, because the environment is foggy, a light source with good penetrability should be selected here. The transportation belt lighting is the general outdoor three-proof lighting, and the vertical pole type lighting is generally used.

　　Metallurgical process

　　Raw material srage. In the ironmaking process, coke, iron ore, and limesne are the main raw materials. The three raw materials are sred in the open-air stack. The area where the raw materials are stacked is generally called a sckyard. The sckyard is generally illuminated by high-pole lights, which are distributed around the sckyard. High pole lights are recommended in this area.

　　The processing, proportioning and transportation of raw materials is the process of gradually transporting raw materials from the underground layer (below 0 meters)  the p layer of the blast furnace (usually 80-100 meters high) through a conveyor belt. Therefore, this area is dominated by belt corridors and belt transfer stations. The belt corridor area is dusty, humid (part of the belt), and vibrated (the belt with a crusher.), so three-proof lamps must be used in these areas, and the light source type is mostly high-pressure sodium lamps.

　　Belt corridors are divided in three types according  the number of belts, one is single belt corridor (usually 3.5 meters wide and the area is narrow and long), double belt corridor (generally 7 meters in width, and the area is narrow and long), and multiple belt corridors. In the single belt corridor, a single row of lamps (ceiling or wall) is generally used, and the interval between the lamps is generally 8-12 meters (according  the actual requirements of the cusmer's contrast); the double belts are generally double-row symmetrical or double-row crossed. Cloth lights.

　　The selection of multi-belt corridor lamps and double-belt corridor lamps is the same. The recommended selection of the above three belts is only for the middle area of ??the belt. For the head and tail areas of the belt, it is difficult  meet the requirements of low-power lamps due  the large dust. Therefore, 250W/400W is generally used in the head and tail. High-power floodlights. The characteristics of the transfer station are dust, humidity, and vibration, so the lamps in this area must be three-proof lamps.

　　Sintering plant

　　In the sintering process, from the raw material  the sintering furnace, the main area is the raw material conveyor belt and transfer station. The specific selection is the same as the previous raw material belt; the temperature of the sintering furnace area is high, and the lighting in this area generally adopts the long-distance projection lighting. Due  the high temperature, large smoke, and heavy dust in the slag treatment area, floodlights can be used.

　　Figure: High-power multi-module floodlight.

　　Ironworks

　　The blast furnace area is divided in an indoor part of the blast furnace and an outdoor part of the blast furnace. The height of the blast furnace workshop is generally 30-40 meters, and the height of the blast furnace itself is 80-100 meters, so the excess part is outdoors. The lighting in the blast furnace workshop is divided in two parts, one is the ceiling lighting of the workshop and the other is the furnace body lighting. In the ceiling lighting, the temperature near the furnace body is relatively high, so the ceiling lamps at about 20 meters from the furnace body should be split-type lamps, and the area beyond 20 meters can choose  have implemented floodlights.

　　The furnace body is illuminated, and the furnace botm part is from the botm of the workshop  about 10 meters from the furnace body. Because the botm of the furnace is divided in key work areas, and the ambient temperature in this area is high and the water vapor is heavy (frequently flushing the slag truck and working equipment with water guns  cool down), it is impossible  install lamps near this area, so the lighting here is relatively high. Long-distance light transmission and floodlighting. The installation method adopts wall or seat installation; in the section between 10 meters from the furnace body and the p of the plant, the ambient temperature in this area is high, the water vapor is heavy, and there are flammable and explosive gases. Therefore, explosion-proof platform lamps with good heat dissipation performance should be used in this section. . The outdoor part of the furnace body lighting is a general outdoor hollow platform lighting. This part recommends the use of high-efficiency anti-glare tri-proof lights and pole installation.

　　The main function of the hot blast sve is  add oxygen-rich and combustion-supporting gas  the air, and then blow the heated air in the boiler. The hot blast sve is an outdoor hollow steel-frame platform, and most of the platforms are pipes. The environment in this area is relatively simple, it is a pure outdoor platform, and the lamps and lanterns in this area are all pole-mounted.

　　Dust removal workshop, dust removal workshop is divided in two types according  the type, electric dust removal, bag dust removal. The electrostatic precipitar area is a