TH65700B - Process for iron treatment and kits for treating iron. - Google Patents

Abstract

DC60 (21/02/57) The current invention relates to the process for the treatment of iron by heat treatment. by heating in a furnace for heat treatment (2) and acid immersion in an immersion solution. Acid for steel (3) When the process air released from the acid immersion solution for steel (3) is heated to the catalyst operating temperature and fed to the catalyst (5) to reduce the nitrogen concentration. oxides when the process air released through the catalyst (5) is fed as combustion air to at least one thermal burner (20). The machine of the furnace for heat treatment (2) the present invention involves a set of tools. For the treatment of steel (1) with a furnace for heat treatment (2) for the treatment of iron heat Acid immersion solution for steel (3) for immersion of steel in acid and catalyst (5) to reduce the concentration of nitrogen oxides of the air released by the source process. From the acid immersion solution for steel (3) when the heating apparatus (6,60) is used for heating the process release air before the catalyst (5) is supplied for heating. The air released from the process goes to the temperature of the catalyst's disposition. When the feeding device (32) for feeding the air released from the catalyst process (5) to at least one heat treatment furnace (20) of the heat treatment furnace (2) was provided. The present invention relates to the process for the treatment of iron by treatment. By heating in a furnace for heat treatment (2) and acid immersion in solution. Acid immersion for steel (3) when the process air released from the acid immersion solution for steel (3) is heated to the catalyst operating temperature and fed to the catalyst (5) to reduce the concentration of the catalyst. nitrogen oxides when the air released from the process passes through the catalyst. (5) being fed as combustion air to at least one of the thermal burners (20) of furnaces for heat treatment (2) The present invention relates to a set of tools for Steel treatment rod(1) with furnace for heat treatment (2)for heat treatment of steel, acid immersion solution for steel(3)for immersion steel in acid and catalyst. (5) to reduce the concentration of nitrogen oxides of the process air emitted from acid immersion solution for iron (3)when heating equipment(6,60)for Heat the process air released before the catalyst (5) is supplied for heating. The air released from the process goes to the temperature of the catalyst's disposition. when the device for Feed(32)For feeding the air released from the catalyst process(5) to At least one furnace(20) of the heat treatment furnace(2) is provided.

Claims (1)

Disclaimer (all) which will not appear on the advertisement page. : ------ 26/07/2018 ------ (OCR) Page 1 of 3 pages Disclaimer 1. Methods for treatment of steel by heat treatment in a blast furnace for heat treatment. Heat treatment (2) and acid soak with acid soak for iron (3) where the air released from The process from the acid immersion method for iron (3) was heated to the operating temperature of the Catalyst And was forged to a catalyst (5) to reduce the nitrogen oxide concentration. It is characterized by the air released from the process through the catalytic converter (5) the flux to the heat treatment furnace (20) at least the unit of the furnace for heat treatment (2) as air for Combustion 2. Method according to claim 1, when the air released from the process of the soaking acid method for iron (3) is heated in the stream of the catalyst (5) by an additional thermoset ( 60) 3. Methods according to claim 1 or 2, where air released from the process is heated. The impregnation of the catalyst (5) by the heat exchanger (6) through the waste gas from Furnace for heat treatment (2) 4. Method according to any of the previous claims, when air released from The process of the soaking method for iron (3) was grounded in a detergent (4) before it got into the Catalyst (5) 5. Method for any claim, the obligation of the previous claim. Where at least part of the debt Of air released from the process after passing through the catalyst (5) the ball is added to the stream (5) desirable air released from the process of the catalytic converter, ie by auxiliary ducts (34) 6. What method of claim, the obligation of the previous claim? Where the waste gas from A furnace from heat treatment (2) is treated for heating the combustion air. For a heat treatment furnace (20), at least the appliance of the furnace for heat treatment (2) where the heating is desirable by the heat exchanger (7). Hold any right owed to the previous claim Where the waste gas from Furnaces from heat treatment (2) are used for the production of process steam. It is desirable by the residual steam generator (9), page 2 of the number 3, page 8. A tool kit for iron treatment (1) with a furnace for heat treatment (2) for the treatment of iron. Iron heat Acid immersion method for iron (3) For soaking iron with acid And a catalyst (5) to reduce the nitrogen oxide concentration in the air released from A process derived from the acid-soaking method for iron (3), where equipment for heating (6, 60) for heating the air stream released by the catalytic process (5) is provided. To heat the air released from the process to the catalytic action temperature. Another characteristic of these is the heating device (32) for the evaporation of air from the process through the catalytic converter (5) to the thermoset (20) at least one of the furnaces for Heat treatment (2) 9. Apparatus for iron treatment (1) in accordance with claim 8 where the apparatus for giving The heat for the excursion heating of the air released from the process of the catalyst (5) is designed as a heat exchanger (6). The vessel is obtained by the waste gas from the furnace. For heat treatment (2) 1 0. Apparatus for iron treatment (1) according to claim 8 or 9, where the equipment for The heat treatment of the air stream released from the catalytic process (5) is generated by an additional sintering furnace (60) 1 1. Apparatus for iron treatment (1) in accordance with What is the right of claim 8 to 10, where the acid detectors (4) to divert the air released from the process of the iron immersion method (3) before entering the catalyst ( 5) can be provided as 1. 2. Tool kit for iron treatment (1) according to any claim on Clause 8 to 11, where at least an additional pipe (34) is for filling. The part of the air released from the repair process is Treatment in the catalyst (5) to the air stream released from the catalytic process (5) can be provided as 1. 3. Apparatus for iron treatment (1) according to any of the above claims. In terms of claims 8 through 12, where the heat exchanger (7) uses the flue gas from the furnace for heat treatment (2) for the heating of the combustion air for the burner. Heat (20) At least one unit 1 of the furnace for heat treatment (2) is provided. Page 3 of the number 3 Page 1 4. Tool kit for iron treatment (1) according to the proposition. Any right. Clause 8 to 13 where at least one unit produces residual heat steam (9). Gas used, waste from the stove Melting for heat treatment (2) for steam production of the process is provided ------------ 1.Processes for treating for steel by heat treatment in a blast furnace. For heat treatment (2) and acid immersion in acid-soaked iron (3), when the process air released from the iron-soaked solution (3) is heated, At the temperature of the catalyst's action and is fed to the catalyst (5) to reduce its concentration. Of nitrogen oxides Its characteristic is that the air released from the catalytic process (5) is fed as air for the Burns to one or more burners (20) of furnaces for heat treatment (2).