How Does Liming Heavy Industry's Grinding Equipment Help the Development of the Carbon Industry

The Foundation of Industry - "Carbon"

The 21st century is known as the "Carbon Century", and carbon materials are widely praised as "black gold".

Carbon materials refer to a category of materials primarily composed of carbon elements. The carbon materials industry specializes in the research, development, production, and sales of carbon and graphite materials. As a vital raw material industry in the country, it uses petroleum coke and asphalt coke - the residual slag from the production processes of the petrochemical and coal chemical industries - as raw materials for manufacturing carbon products. This makes it a typical representative of a circular economy industry for secondary energy utilization, combining economic value with environmental benefits.

Due to their unique physical and chemical properties, carbon materials play an indispensable role in numerous fields. From traditional industries to high - tech applications, carbon materials have an extremely wide range of applications and a very broad development prospect.

Classification of Carbon Materials

According to their uses and processes, carbon materials can be summarized into 13 categories, namely: Graphite electrode class, Graphite anode class, Carbon electrode class, Carbon block class, Carbon paste class, High-purity, high-strength, high-density graphite (referred to as "three-high graphite"), Special graphite, Wear-resistant carbon and graphite for mechanical applications, Carbon and graphite products for electrical engineering, Graphite chemical equipment (also known as impermeable graphite), Carbon fiber and its composite materials, Graphite interlayer compounds, Prospective new carbon materials.

The production process of carbon materials is complex, and the powder grinding link is a key core among them. In the production process of carbon materials, the powder grinding equipment technology of Liming Heavy Industry plays an important role.

Applications of Carbon Materials

At present, the new carbon materials that have formed large-scale applications mainly include various special graphite, carbon fibers, carbon/carbon composite materials, etc., while more advanced materials such as graphene and carbon nanomaterials are in the breakthrough stage. New carbon materials are widely used in aerospace, nuclear energy, wind energy, hard material manufacturing and other industries. Carbon products have the characteristics of high temperature resistance, corrosion resistance, thermal shock resistance and good electrical conductivity. Due to their excellent properties, they are special materials irreplaceable by any metal or non-metal in many application fields.

With the rapid development of industries such as aviation, aerospace, military industry, nuclear industry, electronics, and new energy, as well as the in-depth research and development and application of cutting-edge carbon materials such as carbon nanomaterials and graphene, the uses of carbon products will become more and more extensive. They are known as typical high-tech industries and sunrise industries.

Selection of Carbon Material Equipment and Technical Advantages

Liming Heavy Industry has learned and introduced advanced foreign technologies, and after years of dedicated research and development, has created high-efficiency and energy-saving advanced powder grinding equipment. This equipment breaks through the bottlenecks of traditional industrial grinders, such as low output, high energy consumption, and high maintenance costs. It is suitable for large-scale production and processing of calcined coke, special carbon, activated carbon, etc., with a simple process and stable finished product quality.

Aiming at the carbon industry, Liming Heavy Industry has launched LM vertical roller mill, MTW European trapezium grinding mill, LUM ultrafine vertical mill, and MW ring roller micro powder mill by combining the powder making needs of the carbon field with its original products. According to customers' specific process requirements and product fineness requirements, scientific and reasonable configurations can be made for the feeding system, main machine grinding system, classification system, fan, powder selection system, and collection system. All performances perfectly match the needs of carbon production enterprises, and the equipment has obtained the certification of national patent-intensive products.

Carbon Manufacturing Process

Using petroleum coke and needle coke as the main raw materials, with coal tar pitch as the binder. The process begins with calcining the raw materials for pretreatment, which removes volatile components and improves their physical and chemical properties. The calcined coke is then crushed and ground to a specified particle size, followed by precise batching according to the formula.

In the kneading process, the raw materials are fully mixed with molten pitch to form a uniform plastic paste. This paste is shaped into green bodies through molding methods such as compression molding, vibration molding, or extrusion. Finally, the green bodies are cured and shaped via a roasting process to obtain carbon blocks with specific properties.

Graphite Manufacturing Process

Based on the achievements of carbon production, the process is further deepened. After pressure densification and impregnation to fill pores, graphitization treatment is carried out at high temperatures above 2000°C. This promotes the rearrangement of carbon atoms to improve purity and the degree of graphitization. Finally, high-performance products such as graphite electrodes and anodes are produced, which are applied in high-end fields such as electric furnace steelmaking and electrolytic aluminum, helping related industries achieve technological upgrading and efficient production.

Partial Cases of Carbon Projects