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2. Blast furnace gas - Wikipedia

   en.wikipedia.org/wiki/Blast_furnace_gas

   Blast furnace gas (BFG) [1] is a by-product of blast furnaces that is generated when the iron ore is reduced with coke to metallic iron. It has a very low heating value , about 3.5 MJ/m 3 (93 BTU /cu.ft), [ 2 ] because it consists of about 51 vol% nitrogen and 22 vol% carbon dioxide , which are not flammable.

3. Explosion protection - Wikipedia

   en.wikipedia.org/wiki/Explosion_protection

   Avoidance makes it impossible for an explosion or deflagration to occur, for instance by means of suppressing the heat and the pressure needed for an explosion using an aluminum mesh structure such as eXess, by means of consistent displacement of the O 2 necessary for an explosion or deflagration to take place, by means of padding gas (f. i. CO 2 or N 2), or, by means of keeping the ...

4. Blast furnace - Wikipedia

   en.wikipedia.org/wiki/Blast_furnace

   Blast furnaces differ from bloomeries and reverberatory furnaces in that in a blast furnace, flue gas is in direct contact with the ore and iron, allowing carbon monoxide to diffuse into the ore and reduce the iron oxide. The blast furnace operates as a countercurrent exchange process whereas a bloomery does not.

5. Puddling (metallurgy) - Wikipedia

   en.wikipedia.org/wiki/Puddling_(metallurgy)

   Vertical and horizontal cross-sections of a single puddling furnace. A. Fireplace grate; B. Firebricks; C. Cross binders; D. Fireplace; E. Work door; F. Hearth; G. Cast iron retaining plates; H. Bridge wall. The puddling furnace is a metalmaking technology used to create wrought iron or steel from the pig iron produced in a blast furnace.

6. Fireplace - Wikipedia

   en.wikipedia.org/wiki/Fireplace

   Manufactured fireplaces are made with sheet metal or glass fire boxes. Electric fireplaces can be built-in replacements for wood or gas or retrofit with log inserts or electric fireboxes. A few types are wall mounted electric fireplaces, electric fireplace stoves, electric mantel fireplaces, and fixed or free standing electric fireplaces.

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