Tungsten oxide is a white crystal or powder. It has a wide range of uses. It is a raw material for the manufacture of ceramic capacitors, bromide salts, and metallic tungsten. It is used as piezoelectric material in the electronics industry, and it is also used in the preparation of catalysts, refractory materials, and standard solutions. The relative density is 4.6, the melting point is 1520, it turns yellow when heated, insoluble in water, soluble in hydrogen fluoride acid and sulfuric acid, and soluble in alkali metal carbonates and hydroxides. The production of niobium oxide in my country began in the 1950s. Because there is no complete mineral production, many are recovered from tungsten smelting slag, rare earth smelting slag and other recycled materials, so the output is very small. As the application of tungsten oxide becomes more and more extensive, the requirements for the physical and chemical properties of tungsten oxide are getting higher and higher. In order to meet the needs of various application fields, the production equipment and processes of bromine oxide have been researched and improved, and various processes and equipment have been greatly improved and innovated.1. The production process of niobium oxideAt present, the production of bromine oxide is mainly based on the pressure cleaning process. This process widely uses anti-corrosion, energy-saving, and continuous high-efficiency equipment, adopts large-area filters, and replaces the original process washing tank with a love filter and a booster tube, which greatly improves the tungsten oxide Production efficiency and metal recovery rate.The production flow chart of this process is shown in Figure 1.Figure 1, Process flow chartSecond, the choice of ultrasonic level gaugeIn the preparation of niobium oxide production, extraction of Nb solution, precipitation, pressure filtration and other processes, strong corrosive liquids such as hydrofluoric acid, concentrated sulfuric acid, ammonia, and Sino-Singapore alcohol, ultrasonic water level gauges, radar water level gauges, and external water level gauges should be used. Compared with other non-contact measuring instruments, it has the characteristics of cost performance, technical maturity, performance stability, etc., and is considered to be the instrument of choice for ultrasonic water level gauges.The complex working conditions and harsh environment of niobium oxide production place higher requirements on ultrasonic water level gauges. The probe of the selected liquid level measuring instrument should use anti-corrosion materials to avoid being corroded by strong corrosion and volatile liquids. In a humid environment, the overall mechanical seal of the instrument is objectively required, and the protection level is high to prevent damage to the parts and affect the stability of the instrument. The intermediate extraction raw materials and intermediate products used in the production of niobium oxide are not only corrosive, but also flammable and explosive. The final product niobium oxide is a powdery substance with explosive hazards. In order to ensure production safety, explosion-proof instruments must be used , With explosion-proof function.The choice of ultrasonic water level gauge directly affects production safety, so users must be cautious when choosing to purchase. After a comprehensive comparison of most ultrasonic water level gauges, the instruments on the market cannot meet the above-mentioned production requirements, or the cost performance is not high, and the users are all scrapped. After that, the user finally chose the cost-effective, stable and reliable Huike ultrasonic water level gauge, which is used to measure corrosive liquids such as hydrogen acid, concentrated sulfuric acid, ammonia, and CITIC alcohol in the production of niobium oxide.Three, the advantages of ultrasonic level gaugeIn fact, the user finally chose the Huikeda ultrasonic water level gauge because compared with other similar ultrasonic water level gauge products, the Huikeda ultrasonic water level gauge has the following advantages:1. High explosion-proof level (ExdIICT6Gb). 2. With temperature compensation function, high measurement accuracy and strong adaptability. 3, with RS-485 communication interface. 4. Special echo processing methods are adopted to effectively avoid false echoes. 5, the highest IP66/IP67 overall machine protection level. 6, PVDF material probe is very suitable for the determination of corrosive liquids. 7. The EMC design complies with the IEC61000-4 (GB/T17626.2) standard, including the group’s impulse class A performance (- EFT), electrostatic discharge class A performance (ESD) and surge regulatory requirements. 4, Explosion-proof ultrasonic level gauge It can be seen from these advantages of Huikeda ultrasonic water level gauge that it is reasonable to fully meet the requirements of anti-corrosion, explosion-proof, tightness, measurement stability and cost-effectiveness of bromine oxide production.
At present, the 56 Huikeda ultrasonic water level gauges that have been put into use operate stably under extremely harsh production conditions, and there is no waveform jitter or inaccurate measurement, which effectively guarantees the safety of niobium oxide production.
Post time: 21-09-21