Basalt Multi-Cyclones MBK

Basalt Multi-Cyclones MBK

Battery multi-cyclones MBK with basalt lining for cleaning large volumes of dust-laden gases. Wear resistance and high efficiency.

Material
Cast basalt
Product type
Cyclones
Max. service temperature
350 °C
Mohs hardness
Min. 8

Made to order Price on request

Basalt-lined cyclones

Specifications

General
Material Cast basalt
Product type Cyclones
For equipment Cyclones and multicyclones
Protects against Abrasion, Chemical attack
Physical and mechanical properties
Max. service temperature, °C 350
Mohs hardness Min. 8
Density, g/cm³ 2,80–2,95
Compressive strength, MPa 300–450
Flexural strength, MPa Min. 45
Abrasion coefficient, g/cm² Max. 0.03
Water absorption, % 0
Thermal shock resistance Min. 50 cycles at up to 150 °C difference
Surface roughness K, mm 0,04
Gas velocity, m/s 5–6
Cleaning efficiency 1.5 times higher than a single cyclone of the same diameter
Chemical resistance
Resistance to sulphuric acid H₂SO₄, % 99.7

Description

Due to their simple design, cyclones are among the most popular devices for removing solid particles from gas streams. However, cast iron cyclones often face problems such as high resistance to gas flow and limited service life, especially when purifying gas containing abrasive particles.

Multi-cyclone gas cleaning systems have become widely used due to their ability to clean large volumes of gas. A single multi-cyclone unit contains several cyclone elements operating simultaneously. The production of multi-cyclone elements from cast stone is an effective way to increase their service life. The parallel operation of the multi-cyclone elements addresses the issue of gas cleaning performance, where choosing a multi-cyclone with the required number of elements ensures the necessary throughput. Using smaller cyclones in the assembly increases the efficiency of dust removal from the air by one and a half times compared to a single cyclone of similar diameter. Additionally, the optimal use of cast basalt contributes to effective gas cleaning from large abrasive particles.

Block-combined type multi-cyclones (MBK) have found their application in cleaning systems at sintering plants of ferrous and non-ferrous metallurgy for removing dust from gases generated during the sintering process. Long-term stable operation and high gas cleaning efficiency are achieved due to the low wear of the cast stone elements, whose hardness is four times that of cast iron. The smooth surface of cast basalt (roughness of 0.04 mm, which is 3-4 times less than that of cast iron) significantly improves dust removal from the cyclone walls, thereby increasing its efficiency.

One of the advantages of cast stone cyclones is the absence of electrostatic charge, which prevents the adhesion of particles with magnetic properties, unlike cast iron products. The narrowing of the passage section in a cast stone cyclone increases the gas flow speed to 5-6 m/s, contributing to higher gas cleaning efficiency.

Application

Industries

Frequently asked questions

A multi-cyclone (battery cyclone) is a unit of many parallel cyclone elements for cleaning large volumes of dust-laden gas. Basalt lining protects the elements from abrasive wear.

A multi-cyclone combines dozens of small cyclone elements, increasing dust collection efficiency on fine fractions at high gas flow rates compared with a single cyclone.

Abrasive dust quickly wears the cyclone elements. Cast stone extends their life several times and maintains cleaning efficiency.

At cement, power and metallurgical plants for pre or main cleaning of flue and aspiration gases from abrasive dust.

Efficiency depends on dust fraction and gas flow; the battery layout provides high cleaning on fine particles. Selection is made by gas flow parameters.