1. Introduction of overhead short-flow energy-saving RKEF ferronickel alloy production equipment and process invention patent: The invention discloses an overhead short-flow energy-saving new RKEF ferronickel alloy production process, which comprises the following steps: ( 1 ) drying; ( 2 ) ingredients; ( 3 ) roasting - pre - reduction; ( 4 ) electric furnace smelting; ( 5 ) Casting and forming, the invention also discloses an elevated short-flow energy-saving new RKEF process nickel-iron alloy production equipment, which mainly consists of a rotary kiln, a drying kiln, an electric furnace workshop, a transfer station, a batching station and a raw material warehouse, wherein one end of the rotary kiln is connected with the electric furnace workshop, the other end of the rotary kiln is connected with the transfer station, the drying kiln is located below the rotary kiln, one end of the drying kiln is connected with the electric furnace workshop, the transfer station is connected with the batching station far away from the rotary kiln, and the raw material warehouse is connected with one end of the drying kiln close to the electric furnace workshop through a belt conveyor. According to the invention, by optimizing the design, the charging temperature is increased, and the smelting power consumption is reduced, and the energy is fully utilized, and the energy consumption is reduced, and the environmental pollution is reduced.
2.Introduction to the utility model patent of elevated short-flow energy-saving new RKEF process nickel-iron alloy production equipment: The utility model discloses elevated short-flow energy-saving new RKEF process nickel-iron alloy production equipment, which mainly consists of a rotary kiln, a drying kiln, an electric furnace workshop, a transfer station, a batching station and a raw material storage, wherein one end of the rotary kiln is connected to the electric furnace workshop, the other end of the rotary kiln is connected to the transfer station, the drying kiln is located below the rotary kiln, one end of the drying kiln is connected to the electric furnace workshop, the transfer station is far away from the rotary kiln and the raw material storage is connected to one end of the drying kiln close to the electric furnace workshop through a belt conveyor. The utility model adopts an elevated rotary kiln and places the drying kiln under the rotary kiln, which can reduce the occupied area of the factory and thus reduce the project investment consumption; raising the furnace temperature by direct hot charging of raw materials can reduce the smelting power consumption and save energy. The utility model can fully realize the recycling of resources, reduce energy consumption and reduce environmental pollution.s reduced.
3. A patent introduction to a new RKEF process high-temperature calcine blanking system: The utility model discloses a new RKEF process high-temperature calcine blanking system, which comprises a rotary kiln, wherein the lower part of the rotary kiln is connected with a large calcine fixed heat preservation been through a pipeline, the large calcine fixed heat preservation bin is connected with an electric furnace through a feed pipe, the large calcine fixed heat preservation bin is also connected with at least one small rotary kiln, the small rotary kiln is connected with a small calcine fixed heat preservation bin, and the small calcine fixed heat preservation bin is provided with a feed pipe connected with the electric furnace. In the utility model, by adding a large baking sand fixed heat preservation bin and a small baking sand fixed heat preservation bin, and respectively having feed pipes connected to the electric furnace, the equipment failure rate can be reduced, the temperature drop of baking sand can be reduced, the energy can be saved, and the production cost can be reduced. By adding a cover plate to the baking sand fixed heat preservation bin, heat loss and smoke emission can be prevented. By adding a flashboard valve to the feed pipe, the size of the feed speed and the amount of feed can be controlled.
4. Introduction to a new type of RKEF process energy-saving drying kiln system patent: This utility model discloses a new type of RKEF process energy-saving drying kiln system, including a kiln body, with one end of the kiln body being a feed end and the other end being a discharge end, a drying kiln cavity between the feed end and the discharge end, a multi-stage lifting plate in the drying kiln cavity, and a screen in the discharge port. The utility model increases the heat exchange between laterite nickel ore and high-temperature flue gas by adding multiple layers of lifting plates, improves the drying efficiency and reduces the production cost; By adding a screen, large pieces of material are separated from qualified materials in situ, and the production efficiency is improved. By arranging the drying kiln near the electric furnace, the high-temperature flue gas heat of the electric furnace is fully utilized, the production cost of dry wet ore is saved, the flue gas conveying distance is shortened, the problems of flue dust accumulation and large smoke temperature drop are solved, the construction cost can be reduced, coarse particles in the flue gas of the electric furnace directly enter the drying kiln, the smoke dust content is reduced, the environmental protection investment is effectively saved, and nickel metal in the coarse particles is recycled, and the recycling rate is improved
5.Patent Introduction of Ball Hot Stove for Blast Furnace over 250m3: A Medium Hot Stove for Metallurgy over 250m3. The hot blast stove consists of a suspended chain vault structure, a two-stage regenerator, a cold air uniform distribution device and a high-temperature insulation furnace body. The heating area of the hot blast stove is 2 - 4 times as large as that of the Cobb type hot blast stove, its heat transfer coefficient is 10 times as large as that of the common checker bricks, its heat storage time is longer, and there is no dead angle in the heat storage room. The hot blast stove can save a lot of energy and investment costs when it is used, and its safety performance is higher, and its maintenance cost is lower, which is very beneficial to popularization.and the recycling rate is improved