1. Introduction of Haikou Phosphorus Industry of Yunnan Phosphating Group

YunNan Phosphate HaiKou CO.,LTD. (YPH), a China-Israel joint venture, was established in October 2015 with a registered capital of RMB 2.3 billion. Yph is a joint venture of Israel Chemical Group and Ytianhua Group, both of which are well-known enterprises in the industry at home and abroad. Relying on leading technology and management concepts, YPH has further highlighted its strength, and has strong technical advantages in many fields such as potassium fertilizer, phosphate fertilizer, special fertilizer, food grade phosphoric acid, etc. The company is committed to the development of phosphorus industry chain, and its business scope covers the R&D, production and marketing of phosphate ore mining, flotation, phosphoric acid, phosphate fertilizer and related downstream derivative products. The company takes the market as the center and customer demand as the guidance, and continues to provide customers with quality products and services.

YPH relies on the rich phosphate mineral resources in Yunnan, Israel Chemical Group's international cutting-edge fine phosphorus chemical, phosphate technology and strong research and development force, and the management and manufacturing advantages of Yantianhua Group, the leader of domestic fertilizer enterprises. Yph adheres to the concept of green development, takes technology research and development as the driving force, and takes caring service as the basis, and strives to provide a variety of high-quality and efficient products for agriculture. Make new contributions to China's green development and sustainable development, and make unremitting efforts to build a first-class fine phosphorus chemical industry in the Asia-Pacific. YPH consciously protects the local natural environment in the course of its business, and strives to continuously improve the environmental protection of its products and business. Stick to “ Development in protection, protection in development ” The principle of mine ecological restoration, attaches great importance to the reclamation rate of more than 90%. Conscientiously implement environmental protection of construction projects “ Three simultaneous ” System, environmental protection facilities matching rate of 100%.

2. Flue gas closed sampler

The flue gas closed sampler is a special equipment to solve the problem of unorganized gas emission in the flue gas analysis process of sulfuric acid plant. The application of this equipment can reduce the annual emission of about 2800m to the environment due to analysis of a set of sulfuric acid plants. Acid gas, converted to sulfuric acid is about 1.4t/a. The sulfuric acid device equipped with sealed sampler will completely solve the problems of large amount of acid gas leakage, sampling pipeline blockage, environmental pollution, and protection of the health of analysts in the traditional analysis process.

This equipment is specially designed for the conversion rate analysis of a collection of sampling pipeline, acid gas recovery, pipeline blocking, analysis flow precision adjustment in one of the special equipment, can shorten the analysis time, reduce the work intensity of analysts. Due to the use of analytical flow precision regulation technology, to provide analysts with accurate controlled flow, accurate measurement results, analysis efficiency increased by 50%.

Equipment advantages: Solve unorganized gas emissions, resource recycling, avoid device corrosion, improve analysis efficiency, achieve analysis accuracy, protect the environment and the health of analysts, and help users achieve green and efficient production of sulfuric acid.

Product Performance

Product features

1. Analyze the internal circulation replacement of flue gas to achieve no acid gas emission in the analysis process.

2. Using skid design, up to 10 channels can be concentrated to analyze the flue gas, which can meet the analysis requirements of sulfur acid production, flue gas acid production and pyrite acid production.

3. The sampling pipeline is automatically blocked and purged in low temperature environment.

4. Analyze flow and pressure precision control, provide analysis conditions for accurate analysis.

5. Provide a micro-negative pressure environment for the analysis operation to avoid the harm caused by acid gas to the analyst.

6. Simple operation, maintenance-free, simple installation, stainless steel material, corrosion resistance.

Technical advantages

The closed sampler module is installed at any position 0 meters from the converter, which is easy to operate and provides a comfortable sampling and analysis environment for the analyst.

Design low-temperature anti-blocking function, real-time detection of whether the sampling pipe is blocked, with pipe dredging function and catalyst resistance measurement function.

Closed sampler will avoid high density SO₂, SO₃ emissions to the atmosphere, effectively reduce the corrosion of factory equipment, improve the working environment.

Analyze accurate flow control, obtain accurate analysis data, provide scientific basis for production management and process control, improve the operation efficiency of the device, and create more economic value.

3. Haikou phosphating application

Adhering to its social responsibility to protect the environment, Haikou Phosphating first learned that the flue gas sealed sampler developed by our company for the sulfuric acid industry can solve the problem of unorganized acid gas emissions in sulfuric acid production. At the end of 2023, a three-channel flue gas sealed sampler was purchased for the acid production of 600,000 tons of sulfur, which was used for the analysis of sulfur dioxide, moisture and acid fog at the entrance of the first stage of the unit, the exit of the HRS tower and the exit of the second suction tower.

1. The analysis points that were originally scattered around the device are concentrated in one location to reduce the security risk caused by the analyst moving around the device area.

2. The flue gas that needs to be replaced at each point is collected centrally and returned to the outlet of the second suction tower of the device for tail gas treatment to achieve zero acid gas emission.

3. The replacement gas is completely recovered, and there is no acid gas in the environment where the analyst is located, which greatly protects the health of the personnel.

The analysis process can comprehensively monitor the sampling pressure and flow rate, and the precision control valve can precisely control each bubble into the reaction tube, making the analysis process simpler and the measurement results more accurate.