What is a Mars catcher? What are the design requirements?

Mars catcher is composed of intake pipe, exhaust pipe, cylinder, cone and ash hopper. Because of its simple structure, easy manufacture, installation, maintenance and management, and low equipment investment and operation cost, it has been widely used to separate solid and liquid particles from gas flow or from liquid.

Mars catcher is a dry gas-solid separation device, which uses the centrifugal force generated by the contraction of rotating dusty gas to separate dust from the gas flow. When the dust laden airflow enters the equipment through the intake pipe, the air flow will change from linear motion to circular motion. Dust particles with higher density than gas lose inertia force when contacting the wall and fall down into the ash discharge pipe along the wall. The purified gas is discharged from the exhaust pipe exhauster, and some of the dust liquid which is not supplemented is discharged from the exhaust pipe. It has high collection and separation efficiency for dust above 5-10 M

The design requirements of Mars trapper are as follows:
a. When collecting spark particles in high temperature flue gas, the main material of the equipment is usually 15Mo3 or 16mo. Q235 is used for beam, column and platform ladder.
B. the speed of equipment import and export is generally between 18 m / s and 25 m / s;
c. Dust separation effect. The blade should have certain wear-resistant measures and proper rotation angle.
d. The deformation caused by high temperature should be considered in the design of equipment structure.
In order to prevent Mars from entering the bag filter, the following measures should be taken.
(1) Set pre filter and cooling pipe. Cyclone or inert dust collectors are set as pre filters to capture coarse dust and sparks.
(2) Lingwei spray tower. The gas cooling method directly sprays water in advance. In order to ensure the safety and fire prevention of dust gas in bag filter, control and supply cooling water consumption.

(3) It is a simple and feasible method to install Mars trapper on the pipeline. When Mars passes through the trap, it sends out an electrical signal to give an alarm. At the same time, stop the operation or replace the gas circuit.

Jiangsu Erhuan Environmental Technology Co;Ltd