An embodiment disclosed herein includes a monolithic graphite electrode. The electrode has a main body having a length of more than 3050 mm. Another embodiment disclosed herein includes an electrode column comprising a plurality of monolithic graphite electrodes. The column has a length of more than 3050 mm of electrode per joint. A further embodiment discussed herein is the practice of increasing the length of the electrode to minimize the occurrence of an electrode joint in the electrode column for a given length. This practice will improve efficiencies for both electrode manufacturers as well as electric arc furnace operators.

The present invention provides a method for producing an artificial graphite electrode that enables kneading and subsequent mixing to be carried out without having to increase an amount of binder pitch used even in the case of needle coke having a large pore volume. An artificial graphite electrode is produced by kneading binder pitch with needle coke, and performing extrusion molding and then performing baking and graphitization process on the same, wherein a process for kneading the binder pitch with needle coke includes at least two separate kneading stages, and the amount of binder pitch added and kneading time in these kneading stages satisfy a kneading index as represented by formula (1) below within a range of 0.1 to 0.7.

Kneading index=(a1/A)(t1/T) (1)

Coke including additives that are accumulated at the yield points or in the regions surrounded by the yield points. For homogeneous distribution, the additives are continuously dosed into the delayed coker during the filling time. The dosing can be carried out by powdery blowing with an inert gas (nitrogen) or also distributed in a slurry consisting of the reaction components and a partial flow of the coker feed (vacuum resid, pytar, decant oil or coal-tar distillates). According to an advantageous form of embodiment, the additives may optionally have a diameter of between 0.05 mm and 5 mm, preferably between 1 mm and 3 mm. Advantageously, the additives can be selected from at least one of acetylene coke, fluid coke, flexi coke, shot coke, carbon black, non-graphitisable carbons (chars), non-graphitic anthracite, silicon carbide, titanium carbide, titanium diboride or mixtures thereof.

A method for the production of polygranular graphite bodies including the step of provisioning a mixture including a high-temperature treated anthracite having a high vitrinite content and a petroleum-based needle coke and/or a pitch-based needle coke, and provisioning at least one binder coke precursor. The method also includes the steps of forming a green body from the mixture from the provisioning step, and carbonizing and graphitizing the green body.

A method for the production of polygranular graphite bodies including the step of provisioning a mixture including a high-temperature treated anthracite having a high vitrinite content and a petroleum-based needle coke and/or a pitch-based needle coke, and provisioning at least one binder coke precursor. The method also includes the steps of forming a green body from the mixture from the provisioning step, and carbonizing and graphitizing the green body.

A carbon precursor material characterized by a flashpoint above 290 C. and a softening point between 110 and 300 C. Mettler is provided that includes petroleum-derived pitch product derived from a petroleum-based raw material having a concentration of less than 40% by weight of asphaltenes as measured by SARA analysis. The use of such carbon precursor material in in the production of graphite electrodes for electric arc furnaces used in steel/ferro-alloy/silicon production or in carbon electrodes for aluminum production and/or manufacture of graphite particles for the manufacturing of battery electrodes. A process for producing a coating and/or binding and/or impregnation carbon precursor material is also provided.

An electrode clamping device and a power transmission vehicle. The electrode clamping device includes a first supporting frame; at least one electrode clamp for clamping a graphite electrode; and a flexible connecting piece for suspending the electrode clamp under the first supporting frame; the electrode clamp is connected with the first supporting frame through a flexible connecting piece. The flexible connecting piece can make the electrode clamp adjust adaptively with the change of the position and deformation of the graphite electrode, so as to adapt to the complex deformation of the displacement and deflection of the graphite electrode in different directions and degrees, and the connection between the electrode clamp and the graphite electrode is stable and reliable. In addition, only one part of the flexible connecting piece is used to realize the self-adaptive function of the electrode clamp, and the structure is simple and reliable.

An electrode clamping device and a power transmission vehicle. The electrode clamping device includes a first supporting frame; at least one electrode clamp for clamping a graphite electrode; and a flexible connecting piece for suspending the electrode clamp under the first supporting frame; the electrode clamp is connected with the first supporting frame through a flexible connecting piece. The flexible connecting piece can make the electrode clamp adjust adaptively with the change of the position and deformation of the graphite electrode, so as to adapt to the complex deformation of the displacement and deflection of the graphite electrode in different directions and degrees, and the connection between the electrode clamp and the graphite electrode is stable and reliable. In addition, only one part of the flexible connecting piece is used to realize the self-adaptive function of the electrode clamp, and the structure is simple and reliable.