SYSTEM FOR DRY DUST DEPOSITION AND DRY CLEANING OF A GAS CONTAMINATED BY DUST AND HAZARDOUS SUBSTANCES FORMED IN IRON PRODUCTION UNITS IN THE CAST IRON PRODUCTION OR IN THE DEVICE FOR A DISASTER

摘要

1. A system for dry dedusting and dry cleaning of gas contaminated with dust and harmful substances released during the production of pig iron in plants for the production of pig iron or in the production of iron in plants for the production of iron, containing a supply pipe (1) for supplying a gas stream from a plant for the production of pig iron or installation for the production of iron, containing a device (2) for pre-treatment, and the inlet pipe (1) branches at a point (3) branching to the bypass pipe (4) and the main th pipeline (6); at least one dedusting device (10, 11, 12), wherein the main gas line (6) is connected to the dedusting devices (10, 11, 12) through connecting pipelines (7, 8, 9); and a device (13) for controlling the temperature of the gas stream in front of the dedusting devices (10, 11, 12) in the supply pipe (1) or in the main pipe (6); moreover, in the main gas pipeline (6), an additional device (14) is provided for introducing an additive, which is located between the branch point (3) and the connecting pipe (7, 8, 9), which is the first along the branch point (3). ! 2. The system according to claim 1, characterized in that the device (14) for introducing the additive is a device for pneumatic injection under pressure. ! 3. The system according to claim 1, characterized in that the device (14) for introducing the additive is a device for introducing by gravity. ! 4. The system according to any one of claims 1 to 3, characterized in that the dedusting device (10, 11, 12) comprises a device (15, 16, 17) for extracting the separated solid particles. ! 5. The system according to any one of claims 1 to 3, characterized in that