The size and particle size distribution of powder particles have a great influence on product quality. In traditional building materials, the thickness and shape of cement particles have a great influence on cement properties.

Briquette drying is a complex process, and the whole drying process includes gas, liquid, and solid multiphase flow, as well as complex heat and mass transfer process of drying medium inside and on the surface of briquettes. The internal structure of briquettes similar to porous media is complex and diverse.

It is reported that the glass and ceramic industries are currently high energy consumption industries, with fuel costs accounting for 35%-50% of the production costs. The production costs remain high, causing a heavy burden on the production of enterprises. According to the 2014 annual output data survey, more than 1,000 ceramic production enterprises and more than 3,000 ceramic production lines all use water gas and natural gas as the main production energy.

Powder mixing is a common operation in industrial production, which is widely used in the chemical industry, pharmacy, food, and construction. It is one of the most critical operation procedures in the production of medicines, feed, cement, and other products. Powder material mixing refers to the operation process in which a variety of powder particles with different components change their moving speed or direction in the mixer, and finally, make the particles with different components randomly and evenly distributed in the mixer.

A ferroalloy company produces high-carbon ferrochromium. Each submerged arc furnace is equipped with a negative pressure bag dust removal system to collect and treat the flue gas and dust in the submerged arc furnace.

In order to make the large and medium-sized reduction electric furnaces of ferroalloy run better, it is required that the burden has proper fragmentation and ensures good air permeability. At present, the supply of high-quality lump burden which can be directly fed into the furnace is becoming increasingly tight. In order to adapt to this situation, some manufacturers at home and abroad have adopted various lump technologies to effectively utilize fine ore and concentrate and obtained better smelting indexes.

According to the different subsequent smelting processes, vanadium-titanium iron concentrate pellets determine their respective application fields. Vanadium-titanium iron concentrate acid oxidation pellets are mainly used in blast furnace smelting, blast furnace burden protection and gas-based shaft furnace reduction, but vanadium-titanium iron concentrate carbon pellets are mainly used in coal-based direct reduction.

According to comprehensive analysis, LT dust can be reused while reducing environmental pollution by returning to converter for smelting after being lumped nearby, which is the best choice for its utilization mode.

Dust removal methods in the converter steelmaking process can be divided into the wet method and dry method. The traditional wet purification system is as follows: after the flue gas is treated by water spraying, the smoke dust is removed, and the sewage with smoke dust is treated by separation, concentration, and dehydration to obtain converter sludge, and the purified gas is recycled.

The tunnel kiln process is relatively simple, the technical content is low, and the raw materials, reducing agents, and fuels are easy to solve. The process has strong practicability, small early investment, and is suitable for small-scale production. It is a metallurgical reduction production process commonly used in the powder metallurgy industry.