TWO-STAGE GAS-CLEANING MODULE FOR PURIFYING ELECTROLYSIS GASES Russian patent published in 2021 - IPC B01D53/02 B01D46/02 C25C3/22 

FIELD: gas industry.

SUBSTANCE: invention relates to a two-stage gas-cleaning module for purifying electrolysis gases, having at least one reactor made in the form of a Venturi tube and providing equalization of the gas flow according to speed modes, connected by a transition pipe with at least one bag filter, a chute for supplying the adsorbent to the reactor, crude and pure gas chambers, filter sleeves and a hopper. The module is characterized by the fact that the chambers of the crude and pure gas of the bag filter are divided into at least two sections by means of a partition with the possibility of disconnecting at least one of the sections. In this case, the gas cleaning module additionally contains a system for spraying filter sleeves with an adsorbent with a branch pipe for supplying clean air and made with the possibility of supplying the adsorbent through an additional chute, while the connection point of the spraying system to the bag filter is located between the reactor and the filter, and the hopper is divided at least into two sections and is equipped with nozzles for unloading the adsorbent.

EFFECT: use of the proposed module makes it possible to increase the efficiency of cleaning gases, including gases from electrolysis production, from fluoride compounds of more than 99%, resinous substances and dust in the modes of technological maintenance of equipment, without additional units of the main technological equipment or the use of a "cold" mobile reserve, to increase the service life gas cleaning equipment, filter sleeves and equipment efficiency.

5 cl, 3 dwg