Method for sintering anode steel paw protection ring by utilizing anode charcoal block sintering waste heat

Abstract

The invention relates to a method for roasting the anode steel claw protection ring by using the residual heat of the anode carbon block roasting. It is characterized in that: after the anode carbon block is loaded into the furnace, a layer of filled coke is laid on the carbon block and leveled; then the furnace loading operation of the anode steel claw protection ring is carried out, and the distance between the steel claw protection ring and the side fire channel is 20-25mm. Centimeters, 30-40 centimeters from the horizontal wall, laying staggered; then covered with coke filling, roasted for 20 days using the anode carbon block roasting temperature rise curve, and then cooled to release the anode steel claw protection ring. The invention makes full use of the residual heat generated by anode roasting to roast the protective ring, and utilizes a roasting flue gas purification system to centrally collect and purify the generated asphalt smoke, and the purification rate can reach 97%. The mechanized operation is realized, the labor intensity of workers is reduced, and the production capacity is expanded. The quality of the anode protection ring is reliable, and it has the characteristics of high compressive strength, no deformation, no coking, and good oxidation resistance. The method of the present invention saves the investment in tunnel kiln and related auxiliary equipment, saves fuel costs, effectively utilizes the capacity of the roasting furnace, greatly reduces the production cost of the anode steel claw protection ring, and reduces the cost by about 1 to 2 compared with tunnel kiln roasting. Yuan / per payment.

Description

technical field [0001] The invention relates to the technical field of aluminum smelting carbon, in particular to a method for roasting an anode steel claw protection ring by utilizing waste heat from roasting an anode carbon block. Background technique [0002] The roasting of the anode steel claw protection ring is generally carried out in a tunnel kiln, which requires a lot of investment in the construction of a tunnel kiln and consumes a lot of resources, making the production cost of the anode protection ring high and causing serious environmental pollution. Contents of the invention [0003] The purpose of the present invention is to overcome the problems existing in the prior art, and provide a method for saving investment, saving energy, and reducing the production cost of the anode steel claw protection ring by using waste heat to roast the anode steel claw protection ring. [0004] The method of the invention relies on the existing roasting furnace and flue gas p...

AI Technical Summary

Problems solved by technology

[0002] The roasting of the anode steel claw protection ring is generally carried out in a tunnel kiln, which requires a lot of investment in the construction of a tunnel kiln and consumes a lot of resources, making the production cost of the anode protection ring high and causing serious environmental pollution.