Ceramic impulse filter - CIF

For Purification of gas flows from CO, NOx, SOx, HCL, HF, VOC, dioxins, polydisperse dust particles with temperatures up to 1000°C and concentration of particulate matter up to 20 g/m3.

Principle:

The structure of the ceramic high-temperature filter is similar to the structure and principle of operation of the bag filter. Dusty gas stream entering the unit for purification passes through the filter elements, on the surface of which is formed a dusty sediment, periodically regenerated by a impulse regeneration system.

There are two types of ceramics used as filtering elements in CIF ceramic filters:

Granular ceramic filter elements based on silicon carbide or aluminum oxide
Fibrous ceramic filtering elements based on silica fibers.

The ceramic filter elements are regenerated by an impulse regeneration system with compressed air or another inert gas. Regeneration is carried out automatically as the pressure drop in the filtration unit increases. The impulse regeneration system consists of a receiver with a purge and drying unit, solenoid valves, purge pipes with nozzles, and a control system. At typical specific gas load of 100 m3/m2*h and temperature of cleaned gases of 350-500°C aerodynamic resistance of CIF is 2000-2500 Pa. When opening the solenoid valve into the blowing pipe comes the flow with a pressure of 5-6 bar, coming out through a nozzle diameter of 7 mm it is directed to the open flange of the ceramic filter element while creating a flow rate of 100 - 120 m / s and a pressure of about 12000 Pa. This pressure is enough to clean the pores of the ceramic filter element and to destroy the filtration crust on the outside. Then the particles are deposited in the collecting hopper.

Filters can be assembled into modules of required capacity.

The filters are equipped with ceramic filter elements with diameters from 60 to 150 mm and lengths from 1000 mm to 6000 mm.

Applications:

Nuclear industry,
Ferrous and nonferrous metallurgy,
Chemistry and petrochemistry,
Building industry
Mining and quarrying,
Mineral fertilizer production,
Food-processing industry,
Heat and power engineering,
Public utilities, etc.

Applications:

Gas purification systems of precious metals smelting furnaces, wet catalysis plants, solid fuel boilers, incinerators, glass furnaces and basalt furnaces, catalyst regeneration plants. Hazardous and radioactive waste incinerators, municipal solid and liquid waste incinerators, etc.

Main advantages:

Achievement of existing today and prospective standards for atmospheric emissions,
Possibility to apply deep heat utilization of hot purified gases,
Reducing the volume of flue gases after their purification and heat utilization by 3-6 times,
Reduction of capital and operating expenses for purification,
Smaller area occupied by the filter,
Lower aerodynamic resistance,
Less maintenance,
Lower overall operating costs: energy savings.

Purification Efficiency:
Comprehensive purification of gases from particulate matter and harmful gas components. The residual concentration of particulate matter is less than 2 mg/m3.

FKI

Comprehensive system of gas purification from CO, NOx, SOx, HCL, HF, VOC, dioxins is achieved through the use of:

Catalytic activation of ceramic filters;
System of sorbent feeding into the gas stream before the filter.

Options of equipment:

Ceramic filter body material	ST-3, 09G2S, stainless steel.
Version of filter	Under depression, under overpressure, explosion-proof, tent – shelter.
Gas treatment system	Gas-air cooler, atmospheric air suction valve, shutoff valve
Support structures	According to the location of the installation
Stairs - platforms	Steps, vertical, manholes.
Gas duct	Gas lines, temperature compensators, supports
Smoke pumps, blowers	Centrifugal fan, exhauster.
Dust discharging systems	Airlock, blinker, double blinker
Chemical purification of gases	Device for dosing and feeding of sorbents
Heat exchanger	Plate heat exchanger.
Sensors	Pressure, temperature, laser particle concentration meter.
Control cabinet	Push-button control, touch screen display.