Improve the competitiveness of the garment industry by applying lean

Saving energy in production activities is considered by many enterprises (DN) in the province as a key task to improve competitiveness and environmental responsibility.

In parallel with production activities, Sai Gon – Central Beer Joint Stock Company is particularly interested in saving and using energy efficiently. Enterprises (DN) have applied cleaner measures to cut production costs, contributing to improving the emission of heat and other waste to the environment. Beer production uses a lot of electricity and heat, so at each stage, the unit has researched, analyzed on techniques and implemented a number of solutions to save heat.

Mr. Huynh Van Dung, General Director of the company, said that the process of cooking and fermenting uses a lot of energy in the form of heat and electricity for the operation of equipment; Steam serves the purpose of heating and boiling the cooking pots.

Currently, the energy consumption of Saigon – Dak Lak Brewery is significantly reduced by switching to new generation equipment with low power consumption, high frequency of the inverter and automation. Areas such as bottling, air conditioning, compressed air, CO2 recovery, wastewater treatment, air conditioning and other areas such as pumps, fans, lighting, etc. has replaced high-pressure light bulbs 400W by 110W Compact bulb to minimize power consumption.

This helps the unit save about VND 120 million / year. In particular, businesses have invested 16 billion VND to install air conditioners, according to Mycom Japan ‘s stratified refrigeration technology in the chilling process of sugar in the fermentation stage, which has brought significant efficiency.

Typically for fast cooling sugar, it is necessary to cool water for 28 – 300C to 20C with 1 air conditioner. Mycom’s new technology divides water chilling into 3 stages with 3 smaller capacity machines, each running in close proximity to each other (300C to 180C; 180C to 100C; 100C to 20C). As a result, the efficiency of the air conditioner increased to 8.06, the energy decreased by 60%. With this technology, the plant saves about VND 2.2 billion in electricity every year.

In beer production, the most heat-consuming is the hops, accounting for 30-40% of the total steam used in the factory. The company has invested billions of dong in installing energy metering programs to control energy consumption and recover steam from boilers. In particular, the unit has installed biomass multi-fuel boiler equipment and renovated the old coal-burning boiler to biomass fuel (changing technology and local preferred fuel from coal to burning shells). cashew, rice husk, sawdust, etc.)

This helps save VND 2.5 billion / year and improve the quality of emissions discharged into the air. In addition to saving electricity and water, businesses also check the recycling of waste into organic fertilizer and electricity, regenerating aerobic sources in the wastewater treatment system into gas used for brewing alcohol, producing waste yeast quality yeast for export.

Similarly, Southeast Asia Steel Joint Stock Company (Hoa, Phu Industrial Park, Buon Ma Thuot City) proactively improves the production line system, optimizing the capacity of auxiliary equipment in the production process, etc., to reduce energy consumption significantly, contributing to improving productivity and business efficiency. Instead of using traditional materials of iron ore, coke (exploited from nature) and using blast furnace technology to produce steel, the company used electric furnace technology based on the source of steel waste materials to create the best quality products, avoiding direct impact on environmental resources.

Mr. Phung Duy Nam, Production Director of Southeast Asia Steel Joint Stock Company said that, in addition to forming the habit of economical use of energy among officials and employees, new technology solutions are also being implemented applied at the company to improve energy efficiency. The company has invested in renovating the electric system of the furnace, upgrading the voltage from 950V to 1800V; spending tens of billions of dong renovate the system of loading raw materials from semi-continuous (IE loading each block of scrap separately) with the crane system and magnetic wheels into continuous loading with the system of conveyor materials and scrap brought continuously into the oven and uninterrupted Instead of using locally made low-capacity scrap mills, the company has invested in modern equipment from Europe, such as CIV 700, CIC 800, SHREDDER, etc., to minimize wasted electricity power in a production stage. Technology improvement programs have brought about practical efficiency, helping the unit to reduce power consumption by more than 20%, reducing the cooking time from 110 minutes to 80 minutes / batch of steel.

The implementation of energy efficiency by businesses not only reduces costs and improves efficiency in production and business activities of the unit, but also contributes towards the country’s goal of environmental protection and energy security, effectively combat climate change.

Productivity and Quality Office