During blast furnace production, iron ore, coke, and flux (limestone) for slagging are loaded from the top of the furnace, and preheated air is blown in from the tuyeres located at the lower part of the furnace along the circumference of the furnace. At high temperature, carbon in coke (some blast furnaces are also injected with auxiliary fuels such as pulverized coal, heavy oil, and natural gas) is burned with oxygen blown into the air to generate carbon monoxide and hydrogen, and the carbon monoxide and hydrogen in the iron ore are removed during the process of rising in the furnace. Oxygen, thereby reducing to iron. The smelted molten iron is released from the iron hole. Unreduced impurities in the iron ore combine with fluxes such as limestone to form slag, which is discharged from the slag outlet. The gas produced is discharged from the top of the furnace, and after dust removal, it is used as fuel for hot blast stoves, heating furnaces, coke ovens, boilers, etc. The main product of blast furnace smelting is pig iron, as well as by-product blast furnace slag and blast furnace gas.

Challenge:

The upwelling temperature in the blast furnace can reach 200°C in an instant, and because the dust of the raw material itself is relatively large, the hot air in the furnace will rush to the level gauge with a large amount of dust, which is very prone to material hanging; some raw materials have a certain amount of moisture, plus hot air Upwelling can easily produce water vapor.

Products:

RF2000 Series Guided Wave Radar Level Meter

The manufacturing technology of RF2000 series guided wave radar level gauges all come from our company. After years of demonstration by radar liquid level experts, the quality and quality are guaranteed in all aspects; RF2000 series guided wave radar level gauges have various forms and installation methods, which are almost suitable for The measurement of the entire liquid (interface) surface can also be applied to the measurement of dust, flour, sand and granular materials, which can completely replace the use of buoys and magnetic liquid level gauges; it has many advantages, such as during the measurement process, Its measurement accuracy is not affected by changes in medium density, temperature, pressure, etc.; it also has simple installation and debugging methods, and it can be used only by inputting configuration data. It is a relatively advanced liquid level instrument and is widely used in petroleum , chemical industry, electric power, metallurgy, pharmaceutical, food, oil and grain storage and other industries.

Features:

● Two-wire DC 24V power supply with low power consumption and HART communication protocol.

● The performance will not be affected by the change of process conditions such as the specific gravity, dielectric constant and temperature of the medium within the specified range.

● The coaxial antenna (probe) assembly has a unique sealing form, no leakage, high pressure resistance, not easy to aging, and long life.

● The double-rod probe will not affect the correct measurement when part of the material hangs on it, and has high measurement accuracy.

● It can measure the medium with extremely low dielectric constant which cannot be measured by traditional guided wave radar.

● RF2000 series transmitters are suitable for medium liquid level measurement under high temperature and high pressure working conditions.

● The length of the rod type probe rod can reach 0.5~6m, and the length of the cable type probe rod can reach 21m

● The transmitter part (meter head) is interchangeable, more convenient for maintenance, good compatibility and high stability.

● The zero position and range can be adjusted on site, and can also be adjusted remotely through a remote handheld operator, desktop, or portable computer.

RF9390 Frequency Modulated Continuous Wave Radar Level Meter

RF9390 frequency modulation continuous wave radar level gauge is the RF93 series 120G frequency modulation continuous wave radar level gauge produced by our company. The higher THz band has important applications in long-range target detection, strong smog and dust environments, long-distance imaging, multi-spectral imaging, etc., and can detect smaller targets than microwave radar and achieve more accurate positioning. High resolution and stronger confidentiality.

Features:

● 120GHz-130GHz FM wave radar, the world’s first terahertz radar used in the field of industrial measurement.

● 10GHz ultra-large FM scanning frequency width, wide application.

● 320*240dotTFT color LCD display, easy to operate and friendly interface.

● Support standard HART, MODBUS, PROFIBUS bus protocol.

● Support multiple operation and configuration methods such as host computer setting software, mobile phone APP, LCD keyboard module, tank side meter, etc.

● 24VDC, 220VAC two power supply models.

● Simple installation structure, suitable for various installation forms on site.

RF9600 120G FM continuous wave radar level meter

RF9600 120GHZ-130GHz frequency modulation wave FMCW radar product (also known as THz terahertz radar), because it uses the THz band of the Ku band radar band radar, it can perform long-distance imaging and multi-spectral imaging in long-range target detection, strong smoke and dust environments, etc. There are important applications in this aspect, and it can detect smaller targets and achieve more accurate positioning than microwave radar, with higher resolution and stronger confidentiality.

Features:

● 120GHz-l30GHz FM wave radar is the world’s first terahertz radar used in the field of industrial measurement.

● 10GHz ultra-large FM scanning frequency width, wide application.

● 3208*240dotTFT color LCD display. Easy to operate and friendly interface.

● Support standard HART, MODBUS> PROFIBUS bus protocol.

● Support multiple operation and configuration methods such as host computer setting software, mobile phone APP, LCD keyboard module, tank side meter, etc.

● Supports 24VDC and 22VAe power supply models.

● Simple installation structure, suitable for various installation forms on site.

● RF9300 Series 26G Pulse Radar Level Meter

RF9300 series is a 26G high-frequency pulse radar level measuring instrument, which outputs 4-20mA analog signal, and the maximum measurement distance can reach 70 meters. The antenna is further optimized, and the new fast microprocessor can perform signal analysis and processing at a higher rate, so that the instrument can be used for very complex measurement conditions in reactors or solid storage bins.

The high-frequency microwave pulse emits a narrow microwave pulse, which is transmitted downward through the antenna. After the microwave touches the surface of the measured medium, it is reflected back, received by the antenna system again and transmitted to the electronic circuit part to be automatically converted into a level signal.

Features:

● Non-contact radar, no wear, no pollution.

● The antenna is small in size and easy to install.

● Shorter wavelength for better reflection on inclined solid surfaces.

● The measurement blind area is smaller, and it will also achieve good results for small tank measurements.

● The beam angle is small and the energy is concentrated, which not only enhances the echo capability, but also helps to avoid interference.

● Almost unaffected by corrosion and foam.

● Almost unaffected by changes in water vapor, temperature and pressure in the atmosphere.

● Severe dust environment will not affect electromagnetic wave work.

● High signal-to-noise ratio for better performance even in fluctuating conditions.

● High frequency, the best choice for measuring solid and low dielectric constant media.