{"id":15493,"date":"2025-09-19T02:26:51","date_gmt":"2025-09-19T02:26:51","guid":{"rendered":"https:\/\/jda.jhy.mybluehost.me\/?p=15493"},"modified":"2026-03-10T02:13:26","modified_gmt":"2026-03-10T02:13:26","slug":"the-use-of-steel-slag-and-slag-briquettes","status":"publish","type":"post","link":"https:\/\/www.jianjiebinder.com\/ru\/the-use-of-steel-slag-and-slag-briquettes\/","title":{"rendered":"pengikat pelet"},"content":{"rendered":"

The global steel industry produces over a billion tons of steel annually\u2014alongside it comes an enormous volume of by-products such as\u00a0\u0441\u0442\u0430\u043b\u044c\u043d\u0430\u044f \u043f\u044b\u043b\u044c<\/a>,\u00a0\u043e\u043a\u0430\u043b\u0438\u043d\u0430<\/a>, and, notably, steel slag. Historically treated as industrial waste, slag from steel mills is now gaining recognition as a valuable secondary resource due to its rich chemical composition and diverse reuse potential.<\/p>\n\n\n\n

\"Environmental<\/figure>\n\n\n\n

Environmental Threats of Unutilized Steel Slag<\/p>\n\n\n\n

What is Steel Slag?<\/strong><\/h2>\n\n\n\n
\"\u0417\u0430\u0431\u0430\u0441\u0442\u043e\u0432\u043a\u0430<\/figure>\n\n\n\n

Steel SLag<\/p>\n\n\n\n

Steel slag is a solid by-product formed during steelmaking when impurities are separated from molten steel. Common types include Basic Oxygen Furnace (BOF) slag, Electric Arc Furnace (EAF) slag, and Ladle Metallurgy Furnace (LMF) slag. <\/p>\n\n\n\n

Steel slag is a solid by-product formed during steelmaking when impurities are separated from molten steel. It includes blast furnace slag, electric arc furnace slag (EAF), basic oxygen furnace slag (BOF), and ladle metallurgy furnace (LMF) slag. Steel slag has good compression resistance. The bulk density of steel slag is 3.1-3.6g\/cm3<\/sup>, and the moisture content of steel slag is 3-8%. While chemical composition varies, it generally contains high levels of oxides like CaO, FeO, SiO2<\/sub>, Al2<\/sub>Pelajari lebih lanjut tentang layanan ini3<\/sub>, MgO, and MnO\u2014making it suitable for diverse reuse strategies.<\/p>\n\n\n\n

<\/a>Chemical Composition<\/a> in Steel Slag:<\/a><\/p>\n\n\n\n

Components<\/strong><\/strong><\/td>Content<\/strong><\/strong><\/td><\/tr>
Calcium oxide (CaO)<\/td>40-60%<\/td><\/tr>
FeO<\/td>14-21%<\/td><\/tr>
Magnesium oxide (MgO)<\/td>3-10%<\/td><\/tr>
Manganese oxide (MnO)<\/td>1-8%<\/td><\/tr>
SiO2<\/sub><\/td>8-15%<\/td><\/tr>
Al2<\/sub>Pelajari lebih lanjut tentang layanan ini3<\/sub><\/td>7-12%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

<\/p>\n\n\n\n

Types of Slag from Steel Mills and Their Characteristics<\/strong><\/h2>\n\n\n\n

Slag generated during steel production varies depending on the steelmaking process and furnace type. <\/p>\n\n\n\n

1. Blast Furnace Slag (BFS)<\/strong><\/h3>\n\n\n\n

Blast furnace slag is formed during the production of pig iron in a blast furnace. It results from the reaction between gangue (impurities in iron ore or binder) and fluxes like limestone. Granulated blast furnace slag (GBFS) is the grounded blast furnace slag.<\/p>\n\n\n\n

2. Basic Oxygen Furnace (BOF) Slag\/ Converter Slag<\/strong><\/h3>\n\n\n\n

BOF slag, aka converter slag is produced during the primary steelmaking process where oxygen is blown into molten iron to remove carbon and impurities.<\/p>\n\n\n\n

3. Electric Arc Furnace (EAF) Slag<\/strong><\/h3>\n\n\n\n

Stainless steel and carbon steel are the two main products of steel plants with electric arc furnace. During the production, slags form in EAF slag forms during the melting of scrap steel in an EAF.<\/p>\n\n\n\n

4. Ladle Metallurgy Furnace (LMF) Slag<\/strong><\/h3>\n\n\n\n

Also known as secondary refining slag, LMF slag is formed during the adjustment of steel’s final chemical composition in the ladle. It’s usually more fine-grained and glassy.<\/p>\n\n\n\n

<\/p>\n\n\n\n

Reuse of Steel Slag in Steel and Ironm Making: From Waste to Value<\/strong><\/h2>\n\n\n\n

Steel slag is an important waste resource that can be reused in various industries and fields, including construction, steel plants, sintering, agricultural fertilizer, etc. Though steel slag is formed during the ironmaking and steelmaking processes, it can be reintroduced into the processes as a valuable resource. For example, slags with metallic iron can be recovered using magnetic separation, improving resource efficiency. The remaining slag also serves various uses:<\/p>\n\n\n\n

\"Stell<\/figure>\n\n\n\n

Cooling agent<\/strong> in BOF to absorb heat.<\/p>\n\n\n\n

As a flux in ironmaking:<\/strong> allowing for the recovery of iron from the slag, reducing the consumption of fluxing agents, improving utilization efficiency, and lowering costs.<\/p>\n\n\n\n

As a sintering additive:<\/strong> Replacement for fluxes in sintering, When the CaO content is relatively high, steel slag can be used as a fluxing agent in sintered ore to partially replace lime. <\/p>\n\n\n\n

<\/p>\n\n\n\n

How to Reuse Steel Slag – Briquetting Slags<\/strong><\/h2>\n\n\n\n

Steel slag briquetting plays a key role in promoting the reuse of steel mill waste and building a circular economy in steel production. \u0411\u0440\u0438\u043a\u0435\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435<\/a> is an efficient way to convert fine furnace slag particles into solid, manageable briquettes that are easy to transport and reintroduce into the furnace.<\/p>\n\n\n\n

Benefits of Briquetting Steel Slag:<\/strong><\/h3>\n\n\n\n