Electrode paste use requirements and preparation process

Requirements for the use of electrode paste

The process method of producing ferroalloy by electric furnace is the most important process technology. In my country, the number of alloys produced by submerged arc furnaces in electric furnace equipment exceeds 80% of the total output of ferroalloys. Submerged arc furnace is the main equipment furnace type. Submerged arc furnace is also called submerged arc reduction electric furnace. The process technology for the production of ferroalloys uses electric energy as the main heat source, uses carbonaceous reductant to reduce ore, and produces deoxidizers and alloying agents required for steel production. It is the main method for producing ferroalloys. The high temperature and thermal energy required by the ferroalloys produced are usually converted by sending electrical energy into the electric furnace through self-baking electrodes. The self-baking electrode is an indispensable central link in submerged arc furnace equipment, and is the basic condition and prerequisite for the existence of smelting ferroalloy production technology. In view of the need for continuous high-temperature production, the submerged arc furnace is usually an uninterrupted operation for several years, and the self-baking electrode of the electric furnace is required to be able to continuously transmit electricity. For this reason, the quality, performance, firing technology and use conditions of the electrode paste should all meet the technical requirements for continuous production.

Preparation process of electrode paste

The self-baking electrode (electrode paste) is made of anthracite, coke powder, pitch and broken graphite as raw materials, mixed in a certain proportion of particle size, mixed, stirred and kneaded at an appropriate temperature, pressed into shape, and cooled to make a paste . When in use, the small pieces of electrode paste are loaded into the motor shell of the submerged arc furnace, and during the production process, it relies on the Joule heat generated when the current passes through and the conduction heat in the furnace to self-sinter and coke. The electrode can be used in continuous molding using, connecting to length, and sintering. Configure self-baking electrodes with different diameters according to the electric furnace capacity. The self-baking electrode equipped with submerged arc furnace is widely used in ferroalloy production because of its simple process structure and low operating cost.

Contact info:

Email: carbongraphiteproduct@gmail.com

whatsapp: +8614738833543


Henan Rongxin Carbon Group

　　Rongxing Group is China’s leading supplier dedicated to providing its customers with the quick quotes, superior quality products, competitive prices and fastest possible deliveries of carbon metallurgical materials and solutions.

　　Its main products are graphite electrode，electrode paste, calcined petroleum coke, and refractory. The range of product line covers carbon materials, graphite materials, refractory and water treatment materials. The annual production capacity of graphite electrode, electrode paste, calcined coke and refractory reaches 50,000 tons, 200,000 tons, 250,000 tons and 20,000 tons respectively. The company’s corporate headquarters is currently located in the Zhengzhou.

　　As an experienced supplier, we now offer everything from RP, HP to UHP graphite electrode and trapezodial, oval, cylinder electrode paste in the world. Our products meet and exceed the challenges of thousands of applications, and continue to be innovated.


Alibaba ：Graphite electrode

Alibaba ：Electrode paste

Comments

Post a Comment

Popular posts from this blog

Study on impurities in high purity flake graphite

Image
 　　For the analysis of trace impurities in high-purity flake graphite, the sample is usually pre ashed or wet digested to remove carbon, the ash is dissolved with acid, and then the impurity content in the solution is determined. The ashing method does not need to use ultra pure acid to dissolve the ash, thus avoiding the risk of introducing the elements to be measured, so it is used more. It is also very difficult to detect the ash content of high-purity flake graphite, because the enriched ash needs to be burned at high temperature, and it is difficult to separate the ash from the sample boat at high temperature, which makes it impossible to accurately determine the composition and content of impurities. 　　The existing methods all take advantage of the characteristic that the platinum crucible does not react with acid, use the platinum crucible to burn the high-purity flake graphite to enrich ash, and then directly heat the sample in the crucible with acid to dissolve th
Read more

General technical index requirements for electrode paste

Image
 Electrode occupies an important position in submerged arc furnace. The working conditions of the electrode are bad, the current passing through is high, the temperature difference between the two ends is large, and the production is affected by the impact of mechanical, electrical and charge collapse... Mechanical strength, higher electrical resistivity, better thermal shock resistance, oxidation resistance and smaller thermal expansion coefficient. Generally speaking, the quality of electrode paste is controlled by the following five indicators: 1. Ash: Ash is the residue of electrode paste when it is burnt to constant weight at 850℃-870℃. It belongs to inorganic minerals. It has high ash resistivity, poor strength, high power consumption, and large electrode consumption. In the event of a hard breaking accident, the ash content is a very important indicator, and the lower the better. 2. Volatile matter: Volatile matter refers to the mass loss of electrode paste under the condition o
Read more

Performance characteristics of anthracite electrode paste

 Anthracite is the main raw material of electrode paste. The performance of anthracite is related to the performance of electrode paste. Therefore, it is necessary to understand and discuss the performance of anthracite to ensure the quality of electrode paste. Anthracite coal in China is mainly distributed in Shanxi, Ningxia and Guizhou. Shanxi is the origin of anthracite, which is mainly produced in Yangquan and Jincheng. Anthracite is an indispensable raw material for carbon industry. It is mainly used in semi graphite cathode carbon block, electric furnace carbon block, blast furnace carbon block, carbon electrode and various pastes. Studying and discussing various properties of anthracite is very beneficial to improve the quality of carbon products.
Read more