Chifeng Yuntong (Beijing Aluminum Energy Qingxin) 20KG/h Ozone Generator Equipment

Qingxin Environmental Technology Co., Ltd. has garnered significant attention. Notably, the 20KG/h ozone generator equipment customized by Beijing LvNeng Qingxin for Chifeng Yuntong, with its efficient and stable performance, has become a key technical support for industrial waste gas treatment and resource recycling.

## Technical Background and Equipment Positioning

As an important copper smelting enterprise in China, Chifeng Yuntong produces waste gas containing sulfides, nitrogen oxides, and heavy metal particulates during its production process. Traditional treatment processes face issues such as high energy consumption and the risk of secondary pollution. Beijing Aluminum Energy Fresh, a high-tech enterprise under the China Aluminum Group, specializes in research and development of atmospheric pollution control and solid waste resource recovery technologies. Its independently developed "high-performance reagent and tower integrated two-stage blast furnace gas dry desulfurization system" has reached the international advanced level. The 20KG/h ozone generator equipment customized for Chifeng Yuntong is an innovative solution developed based on the strong oxidizing properties of ozone, specifically targeting refractory pollutants in smelting waste gas.

This equipment utilizes oxygen as the gas source and employs micro-gap double-edge surface discharge technology to split and recombine oxygen molecules into ozone under conditions of 5000V high voltage and 2000Hz high frequency. The ozone production rate of a single unit is stable at 20 kilograms per hour, with an ozone concentration of ≥110mg/L. Its core advantages are as follows:

1. **High-efficiency conversion**: Utilizing a high-frequency inverter power supply and an imported high borosilicate glass tube discharge body, the ozone production rate is increased by 30% compared to traditional equipment, and the power consumption is reduced to below 0.95 kWh/kgO₃;   

2. **Intelligent control**: Equipped with a microcomputer control system and group control function, it can monitor ozone production, concentration, and equipment operating status in real time, supporting 24-hour continuous operation;   

3. **Safety Redundancy Design**: Integrated with quadruple protection mechanisms against overcurrent, overvoltage, phase loss, and water shortage, the discharge chamber is constructed with stainless steel and features a water cooling circulation system, ensuring stable operation of the equipment even in high-temperature environments up to 40°C.

## Application scenarios of the equipment in Chifeng Yuntong

### 1.  Anode furnace tail gas denitration project

In July 2025, Beijing Aluminum Energy Fresh won the bid for the general contracting of the denitration project for the tail gas from the anode furnace of Chifeng Yuntong, with a contract amount of 8.17 million yuan. In this project, a 20KG/h ozone generator, as the core equipment, is linked with a catalytic oxidation device. The strong oxidizing property of ozone is used to convert nitrogen oxides (NOx) in the tail gas into soluble nitrates, which are then absorbed by wet methods to achieve emission standards. Compared to the traditional SCR denitration process, this solution eliminates the need for reducing agents such as ammonia water, thus avoiding secondary pollution caused by ammonia escape, and the denitration efficiency is increased to over 95%.

### 2.  Waste gas treatment for temporary storage of hazardous waste

According to the environmental impact assessment document for the hazardous waste utilization project published by Chifeng Yuntong in March 2025, the sulfuric acid mist and transportation exhaust gas generated from the temporary storage of arsenic-containing waste residue are packaged in sealed ton bags and transported by forklifts meeting the National III emission standards. These gases are then oxidatively decomposed by ozone generated from an ozone generator. The reaction between ozone and sulfuric acid mist produces sulfate particles, which are collected by a negative pressure vacuum cleaner and sent to the production wastewater treatment station, achieving zero emission of exhaust gas.

### 3.  Laboratory wastewater pretreatment

The heavy metal-containing wastewater generated by the Chifeng Yuntong Analysis and Testing Center is collected in polyethylene high-density acid and alkali resistant granular barrels and pumped to the ozone contact reaction tank. The strong oxidizing property of ozone can destroy the molecular structure of organic matter in the wastewater, reduce COD (chemical oxygen demand) and BOD (biochemical oxygen demand), and simultaneously convert heavy metals such as hexavalent chromium into insoluble hydroxide precipitates, providing stable inlet water quality for the subsequent membrane separation process.

## Technological Innovation and Industry Value

Beijing Aluminum Energy's innovative 20KG/h ozone generator has achieved three major breakthroughs in technological innovation:

1. **Optimization of material corrosion resistance**: In response to the strong corrosivity of ozone to metals, the discharge chamber is made of a chromium-iron alloy containing 25% chromium, and the seals are made of silicone rubber and acid-resistant rubber, extending the equipment's lifespan to twice that of traditional products;   

2. **Improvement in gas-liquid mixing efficiency**: By combining a gas-liquid mixing pump with a static mixer, the ozone dissolution rate has been increased from 85% to 98%, significantly enhancing the wastewater treatment effect;   

3. **Modular design**: The equipment adopts an integrated installation structure, occupying 40% less space compared to similar products, facilitating the upgrade and renovation of old factory areas.

From the perspective of industry value, the promotion and application of this equipment has provided a reproducible environmental protection solution for the non-ferrous metal smelting industry. Taking the Chifeng Yuntong project as an example, after the equipment was put into operation, the enterprise reduced annual emissions of nitrogen oxides by 120 tons and sulfuric acid mist by 35 tons, and the cost of hazardous waste disposal decreased by 20%. At the same time, it met the special emission limit requirements of the "Emission Standard of Pollutants for Copper, Nickel and Cobalt Industry" (GB 25467-2010), helping the enterprise pass the A-level assessment of environmental performance.

  ## Future Outlook

With the advancement of the "dual carbon" goals, ozonation technology holds broad application prospects in fields such as industrial waste gas treatment and advanced sewage treatment, owing to its advantages of no secondary pollution and fast reaction speed. Beijing Aluminum Energy Fresh Plan plans to launch a new generation of intelligent ozone generator in 2026, integrating IoT monitoring and AI optimization algorithms to achieve a dynamic balance between equipment energy consumption and ozone production. Meanwhile, the company is collaborating with Chifeng Yuntong to develop an ozone catalytic oxidation-membrane separation coupling process, further reducing the cost of heavy metal wastewater treatment and providing a technological paradigm for the green transformation of the non-ferrous metals industry.

The cooperation between Chifeng Yuntong and Beijing Aluminum Energy Qingxin not only demonstrates the responsibility and commitment of central enterprises in the field of environmental protection, but also promotes industrial upgrading through technological innovation. The successful application of 20KG/h ozone generator equipment provides a "Chinese solution" for industrial pollution control, and its experience is worth promoting and replicating in heavily polluting industries such as steel and chemical industries.