JET-PULSE FILTER GENERAL INFORMATION

DEFINITION

Jet-pulse filters are made of self-cleaning automatic running without interruption, capturing even submicron particles within a given gas field, ΔP device which minimizes compressed air consumption, mat bags according to the type of powder. The most noteworthy feature of the filters is the very high dust retention efficiency, with no moving parts in full working conditions.

WORKING THEORY

Dusty air movement enters the system from the bottom of the filter body. The dust is in the direction of the bags and leaves the dust particles on the outer surface of the bag. The fresh air entering the inside of the bag comes to the fresh air section of the filter. It leaves the unit with the exhaust system. With the Differential pressure difference control between the clean and dirty gas sections of the filter and pressure reverse jet cleaning system, the differential pressure difference is decreased and the bag permeability is kept in continuous limits. With the periodic signals coming from the electronic timer circuit, the solenoid valves (which can be adjusted as 0.1 sec) are energized for very short periods and are injected into the bags at high speed through the venturi through the holes on the blowpipes via high pressure air blow valves. At high speed, the compressed air passes through the venturi, creating a secondary air flow several times the size of its volume, which leads to the cleaning of the filter bags with the combined effect of the two air systems.

FIRST WAY AND OPERATING INSTRUCTIONS

Before starting the filter, check the suction air vents and the filter housing for air leaks and check the electrical connections. Check the direction of rotation of your fan. Check that the selection knob is set according to the number of solenoid valves, especially that the electronic timer connections are connected to the 220V 50 cycle single phase. Please note that over-voltage and improper connection will malfunction in electronic circuit components and even burn the solenoid valve coils.

There is very little pressure difference between the inlet and outlet of the filter in the first starting, the pressure difference is increased in the bags when dust is supplied to the filter. (Increased pressure differential with dust) Pressure losses at idle conditions are around 75-100 mm SS. This corresponds to a large percentage of total system losses. Therefore, the fan motor will be overloaded with clean bags, so it is recommended to place adjustment flaps on the suction points. These should be switched off and the fan should be gradually loaded to prevent overloads and stresses.

It is particularly recommended that the system adjustments are made before the bags are put into the filter units, especially if the filters are used with the process equipment. If this warning is ignored, there is a risk of burning or destruction of the bags. In order not to cause any damage to the original bag series, it is necessary to adjust the temperature control and service and settings of the other controls.

When dust filters work together with any desiccant system; It is strongly recommended that the entire duct and filter body be heated and the condensation in the filter walls and filter elements should be prevented by operating the dryer for 15-20 minutes before feeding the moist goods. It does not require careful monitoring of filter operators under normal operating conditions, differential pressure difference controls to be made from time to time will increase the performance of dust filters. .