LDA: Save billions of dong from the production optimization program

The drastic, synchronous and methodical implementation of the optimization program, plan management and technology access goals have helped Lam Dong Aluminum One Member Limited Company – TKV (LDA) improve labor productivity, lowering product costs, bringing many positive results towards a modern and international standard production complex.

One of the proofs is the investment and boldness to test and operate the gas-fired furnaces of the Coal Gasification Plant in different modes. This has helped the Workshop to offer the most optimal operating mode, stable operation with high loads, burning many different coal particle sizes, reducing residue formation, deflection burning, and increased calorific value compared to the thermometer. plan. The quality of gas is significantly improved, the carbon in ash and slag decreases. In particular, reducing coal consumption for 1 ton of product from 131.7 kg to 127.5 kg, equivalent to a decrease of 3.2%. In addition, the use of self-produced steam at the Coal Gasification Workshop, without using the steam from the thermal power plant as before, has saved about 4 tons / hour of consumption, equivalent to about 522 tons of coal dust / month, equivalent to saving 14.4 billion / year.

 In addition, the drastic implementation of the automation program, operating in the interlock mode of the furnace control system, has contributed to reducing the consumption of coal gas supplied to the furnace to a lower level than the design. In the kiln system, the optimization in the production line, reducing operating labor is also completely applied. Since then, the kiln operating capacity increased from 1,850 tons of alumina / day to 1,953 tons of alumin / day, equivalent to an increase of 5.3%.

 Also at Hoa Separate – Concentrate Workshop, the concentrator system has been continuously improved and strengthened, increasing the water type capacity of the concentrator by 12 m3 / hour, corresponding to increasing alumina production capacity. additional 40,000 tons / year. Not only that, the consumption of low pressure steam / m3 of discharged water also decreased significantly, about 65,000 tons of steam / year, equivalent to saving about 24 billion VND / year. The workshop that does not periodically wash water at the condensing station has also contributed to reducing 3,600 tons of low-pressure steam / year, saving more than 1.3 billion VND / year.

Productivity and Quality Office