Pyrite fluidized bed roaster ,Internal refractory high alumina brick

Fluidized bed roasting furnace

, also known as boiling furnace for short, is a device that uses solid fluidization technology to roast sulfide ores and other materials.
Structure and principle
Structure: The furnace body is composed of a steel shell lined with insulation bricks and then lined with refractory bricks, and an insulation layer is set on the outside to prevent condensed acid corrosion. The lowest part is the wind chamber and the air inlet pipe, above which is the air distribution plate, and on the plate is a refractory concrete furnace bed with a wind cap buried. The middle part of the furnace is a cone, and the upper roasting space has a large cross-sectional area, which can reduce the blowing of solid particles. There are also feeding ports, slag overflow ports, furnace gas outlets and other pipes, and there are explosion-proof holes on the top of the furnace.
Principle: Hot air is blown out from the small holes on the side of the wind cap, so that the material is fluidized in the furnace, like boiling water, to achieve efficient roasting. When sulfide ore is roasted, the reaction heat is released, and sulfur dioxide-containing gas is generated for the production of sulfuric acid, and slag can be used as metallurgical raw materials.
Type
Straight-tube furnace: mostly used for roasting nonferrous metal concentrates, with low roasting intensity, no or slight expansion of the upper furnace, and a cylindrical appearance.
Upper expansion furnace: used for roasting broken block ores in the early stage, and later also used for roasting various flotation ores, with high roasting intensity.
Performance characteristics
Advantages: high roasting intensity, able to process low-grade ores; low residual sulfur in slag; high sulfur dioxide concentration and low sulfur trioxide in furnace gas; more heat can be recovered to produce medium-pressure steam; uniform furnace bed temperature; simple structure without rotating parts, low investment and maintenance costs; high degree of automation and low operating costs; convenient driving and less air pollution when parking.
Limitations: furnace gas carries more mineral dust, and the air blower consumes a lot of power.
Application fields
Widely used in sulfuric acid manufacturing, nonferrous metal smelting and other industries, processing pyrite, nonferrous metal flotation concentrate and other materials.

Henan Zoomline Machinery Manufacturing co. Ltd is located in Wen County, Jiaozuo City, Henan Province. It is mainly engaged in the production and installation of mining equipment and building materials equipment, as well as the relevant process design, equipment production and installation of harmless treatment of industrial waste. Many senior executives and engineers of the company have accumulated a large amount of industrial solid waste, such as fly ash, chromium slag (chromium mud), papermaking white mud, carbide slag, smelting waste slag, coal gangue, pyrite slag, industrial sludge, construction waste and other industrial solid waste treatment front-line practical experience over the years. In recent years, it has cooperated with many research institutes, colleges and universities and technical researchers from all walks of life to learn from each other's strengths and weaknesses, so that our company has made significant improvements in process technology and project construction experience in multiple sub-sectors.

Based on the deep cultivation of traditional R&D, production, manufacturing and sales, our company has fully explored the needs of customers in three dimensions: quality, efficiency and price in recent years. Adhering to the principle of customer-centricity, we deeply integrate the upstream and downstream supply chains and establish a large-scale data information database of raw materials, second-hand or idle equipment in many provinces and cities across the country, aiming to provide customers with a one-stop overall solution with rich equipment categories with greater flexibility, and greatly reduce the cost of customer procurement-----Providing suitable, timely and affordable products to customers all over the

world is the mission of Zhonglan people.

Our company implements technological innovation, market orientation, management improvement and employee development as the basis, pays attention to customer value and assumes social responsibility. We are committed to becoming "the industry's leading provider of overall solutions for harmless treatment of industrial waste."