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Parameters Non-contact measurement: Contactless & no wear parts, hence low maintenance Material overall moisture content measurement: material penetration, representative Strong anti-interference capability: Not affected by dust, water vapor and vibration in the environment Not affected by material color, temperature and particle size Fast real-time measurement results: Sampling rate reaches the microsecond level Wide range of application: Almost all (non-conductive) substances can be measured High safety: Low emission energy, no radioactive nuclear source

Product Features Fast Response: Conduct real-time online detection of coal passing through the belt, give the instantaneous value and average value of coal ash content in any time period as required. Representativeness: Analyze the coal passing through the belt, overcome the shortcomings of traditional analysis method which had the poor representativeness due to analysis of only a small amount of coal. Reliability: Conduct non-contact measurement based on the principle that rays can penetrate through substances. Best measurement scheme is designed according to the site conditions, and all key components are self-designed to ensure the long-term stable and reliable operation of the instrument. Advancement: Using the latest FPGA design technology and ARM core single chip microcomputer this combines the nuclear electronic technology and computer technology to realize the high-speed processing of nuclear pulse signal and improve the dynamic response of the instrument. It adapts automatic peak stabilization technology of X-ray energy spectrum, and the instrument drift caused by various factors such as the change of environmental conditions and component performance etc. can be compensated automatically.

Typical Application In one plant of Benxi Iron and Steel Group, the particle size of ore crystals is small. In the third stage of grinding, the particle size of 500 mesh (- 25 microns) varies from 70% to 95% and the mass concentration varies from 10% to 60%. Also, the source of raw ore on site is frequently replaced, and the variation range of its concentration and particle size is close to or even beyond the detection range of the analyzer. By upgrading the ultrasonic measurement system and algorithm model, DF-PSM can effectively track and detect ultra-fine particle process pulp. The problem of difficult detection for original particle size analyzer's three-stage-500 mesh target particle size and inadaptability to the frequent changes in the field process was solved. After the calibration and variation for nearly 2 months of the improved ultrasonic particle size analyzer, the particle size detection accuracy of -500 mesh samples has reached 0.99%, which meets the site requirements and can guide site production.

In the beneficiation process, particle size is a very important indicator in the grinding and classification process, which directly affects the processing capacity, energy consumption, steel consumption and the processing effect of the subsequent process flow. The application of Ultrasonic Online Particle Size Analyzer (DF-PSM) better solves the problem of real-time detection of process pulp particle size, and ensures that the production process is in the best working state under the premise of qualified particle size, that is, the grinding and classification quality is the best and the output is the largest. At the same time, the labor intensity of workers can be reduced and the problem of poor control caused by the lag of manual testing can be solved. In recent years, with the continuous improvement of the grinding and classification process, the demand for ultra-fine particle detection has risen sharply, while no better solution had been carried out due to the limitations of the original technology. DF-PSM, which is independently developed by DFMC, is an online slurry particle size detection instrument. The product optimizes and upgrades the ultrasonic signal acquisition unit. Based on re-establishing the auxiliary parameter setting standard through mathematical modeling, combined with statistical metrology method to determine reasonable ultrasonic frequency range for particle size detection, and extensive experiments try and continuously improve the work of the data regression algorithm, the technical problem was eventually completely solved. And this filling the technical gap of online particle size detection in the field of ultra-fine particles in China. DF-PSM has been successfully applied in one plant of Benxi Iron and Steel Group , which has been unanimously recognized and praised by customer.

A-MINERAL was successfully applied at a copper mine of Western Mining Group in 2021. This site integrates mining, processing and smelting together. DFMC undertook the intelligent mine construction at this site and EA-MINERAL was installed across the conveyor belt after crusher. The measured data correlated well with R2 = 0.998, and with good trend consistency. At present, most of the plants use X-ray fluorescence or chemical assay method for quality control. Being compared with which, EA-MINERAL has the following technical advantages: 1) Comprehensive: all materials passed through are measured and are highly representative. 2) Fast: results are available every minute, without the need for sampling and sample preparation. 3) Stable: non-contact measurement, long-term stable operation. The material flowing through the channel of EA-MINERAL does not come into contact with the detector, which reduces the mechanical failure rate, and the detector uses constant temperature control measures to ensure the long-term stable operation.

EA-MINERAL was successfully applied at a copper mine of Western Mining Group in 2021. This site integrates mining, processing and smelting together. DFMC undertook the intelligent mine construction at this site and EA-MINERAL was installed across the conveyor belt after crusher. The measured data correlated well with R2 = 0.998, and with good trend consistency. E-mail:intersales@dfmc.cc Website:https://en.dfmc.cc

The cross-belt elemental analyzer developed by DFMC is of modular structure, no belt cutting is required, and it can be easily installed across the belt. When operating, the whole testing process does not need to take samples or even touch the material. The measurement process does not affect the operation of the belt and it is rapid analysis of the elemental composition which given in minute. EA-MINERAL is mainly used for elemental testing of incoming ore and ore to be milled, to guide the mining and ore blending. According to the real-time information of the EA-MIENRAL the production process can be effectively controlled and improved, the cost can be reduced and the metal recovery rate can be increased. E-mail:intersales@dfmc.cc Website:https://en.dfmc.cc

DF-IGAX XRF IRON SLURRY GRADE ANALYZER Non-radioactive: The traditional method of measuring Fe content within iron slurry is DUET which requires radioactive source Am-241 and Cs-137. In order to realize non-radioactive operation, DF-IGAX uses a small volume high energy X-ray tube instead of the sources. The operation is safer, the worry is lesser. E-mail:intersales@dfmc.cc Website:https://en.dfmc.cc

Track-type Intelligent Inspection System Track-type Intelligent Inspection System is a comprehensive system combining artificial intelligence, motion control, machine vision, wireless communication, computer software and other technologies. The system well solves the current situation problems that personnel can only conduct regular inspection and stay on duty. By the installation of the system, the impact of complex environment, narrow space and unsafe factors on personnel inspection also can be avoided. The inspection results are not affected by personal experience, emotion and subjective knowledge. Also, it will not be affected by the initial problems of monitoring means, data recording and data analysis, which can maximize safety and equipment protection.

PSI Online Diameter-measuring Particle Size Analyzer (PSI) is an online smart industrial instrument to measure particle sizes in an automatic and real-time mode. It consists of three parts -- main control box, detector and installer. PSI directly measures microcosmic approximate diameter of particles by high precision displacement sensor, then, it makes statistical analysis on measurement results. It has strong adaptability in applications. The measurement result is intuitional, stable and reliable.

EA-SINTER is an online measuring instrument used for real-time detection of element content in sintered mixture and sintered finished ore. It can simultaneously analyze the content of various elements such as calcium, silicon, iron, sulfur, etc. Automatic sintering can be realized according to the chemical composition of the material. EA-SINTER uses a modular structure, which is convenient to install and maintain. The whole measurement process follows non-contact principle, thereby ensuring longer, safer and more stable operating time. It also realizes full material flow and full element detection which ensures remarkable representativeness. E-mail:intersales@dfmc.cc Website:https://en.dfmc.cc

From the core of safety production, DFMC has developed a series of effective safety monitoring systems for mining and mineral processing industries. The wide application of these products greatly reduces the occurrence rate of production accidents and produces extensive and far-reaching economic and social benefits. DFMC is willing to join hands with you to build an efficient, safe, green and ecological mine. We use CSS high-precision positioning, Internet of things, optimal scheduling modeling, automatic control and virtual reality technology to collect the status of underground production environment, personnel and equipment in real time, realize the dynamic deployment of production operations and timely warning of dangerous conditions. We provide you with positioning accuracy less than 3 meters man-machine positioning system, production scheduling system, environmental monitoring system and locomotive unmanned driving system, providing favorable guarantee for the safety, efficiency and intelligence of underground mine production. The safety detection and early warning system of tailing pond developed by us can detect the real-time state of tailings pond and slope, so as to ensure the production safety of tailings pond.

They are fighting on the front line of R&D and Delivery In the days that were supposed to be reunited with their relatives, the colleagues of DFMC took the interests of customers as their top priority and took the responsibility of ensuring project development, delivery progress and quality as their own responsibility.They remained on the front line of the project during the holidays,fully promoted the development of R&D tasks and strive to ensure the high-quality delivery of the project. 1.The near-infrared team is testing the prototype of the near-infrared ore composition analyzer in the company's optical laboratory. 2.The coal quality project team installed a multi-point ash analyzer in a coal preparation plant of an intelligent separation project. 3.In an intelligent beneficiation project,the mine project team debugged,checked and maintained the grade analyzer and sodium concentration meter. 4.The coal quality project team completed the commissioning of the By-line raw coal spanning analyzer at a site.

This group's 1.5 million t/y lead-zinc mining and ore-dressing project changed the traditional mine construction ideas during the construction process, strictly in accordance with the national green environmental protection mine construction standard, and used for reference and absorption of the most advanced equipment and cutting-edge technology in China and abroad as basis, established a construction concept of ecological, environmental protection, tourism, and digital mines, forming a high target positioning, high design standards, high technical foundation, high environmental protection and safety protection, and new concepts, new designs, new equipment, and new processes, management of the new "four high five new" development concept, and strive to build a domestic first-class, world-leading modern green mine.The group has 30 million tons of lead and zinc mineral resources, the service life is 30 years, a lead metal content of 0.36 million tons, and has 1 million tons zinc metal content. The mine production scale is processing 5,000 tons of ore per day and 1.5 million tons of ore per year. The beneficiation adopts SABC grinding + flotation process. The main equipment includes 7 × 3.5 meters single drive semi-automatic mill, 5.03 × 8 meters single drive ball mill, 70 cubic flotation machines and other equipment. The group's integrated automation control system adopts advanced DCS large-scale redundant distributed control system, high-performance fault-tolerant Ethernet, high-precision online detection & analysis instruments and actuators, etc., which realizes automatic detection and control of production data in all aspects of mineral processing, and stabilize the production effect of beneficiation plant, improve the concentrate grade and increase the metal recovery rate. This group comprehensive automatic control system is combined with video monitoring system, underground personnel positioning system, tailing pond online monitoring system and production scheduling system during the production process. Through the reporting system, data remote transmission, web publishing and other technologies, this will improve the enterprise management efficiency and level and also promote the deep integration of informationization and industrialization.

Online Neutron Moisture Analyzer can be used in industrial production process for online continuous detection of material moisture, which is widely suitable for such industries as iron and steel, building material, cement, casting, glass, ceramics, etc., and can output control signals to realize close loop automatic control in the production process. To adapt to the requirements of different fields and different processes, the product is classified into transmission type online neutron moisture analyzer, reflection type online neutron moisture analyzer and reflection type belt neutron moisture analyzer. The neutron source is controlled by a switch with high safety, being convenient for servicing and safe. The detection is not influenced by such factors as dust, water vapor, material electrical conductivity, particle size, etc. By adopting the new-type neutron automatic peak stabilizing technology for energy spectrum researched and developed by the company, it can ensure that the long-term drift of the instrument is less than 0.1%. The non-contact detection mode in which the probe and material has no contact can ensure long-term use. There is a unique alarm device with a dual fail-safe function. Main performance indexes: Measured material type: Sinter mixture ² Measurement mode: DF-5740 Transmission Type Online Neutron Moisture Analyzer can be selected and used. DF-5744 Reflection Type Online Belt Moisture Analyzer can also be selected and used. ² Measurement range: 0%~10%. ² Measurement accuracy: ±0.4%. ² The long-term stability of ray counting rate (>8 hours) and the repeatability of measurement value<0.1% ² Host working environment: 0°C - +50°C, relative humidity≤95% ² Probe working environment: -20°C - +50°C, relative humidity≤95% ² Radiation safety performance: The equivalent dose rate at 1m from the radioactive source<2.5μSv/h, meeting the dose standard for a non-radioactive workplace as regulated by the State. Working beyond 1m for a long time has no influence on human health. Measured material type: Coke ² Measurement mode: DF-5741 Reflection Type Online Neutron Moisture Analyzer can be selected and used. DF-5744 Reflection Type Online Belt Moisture Analyzer can also be selected and used. ² Measurement range: 0%~20%. ² Measurement accuracy: When the coke moisture changes from 0% to 5%, the standard detection accuracy of the neutron moisture analyzer is ±0.5%. When the coke moisture changes from 0% to 7%, the standard detection accuracy of the neutron moisture analyzer is ±0.8%. When the coke moisture changes from 0% to 10%, the standard detection accuracy of the neutron moisture analyzer is ±1%~±1.2%. ² The long-term stability of ray counting rate (>8 hours) and the repeatability of measurement value<0.1%. ² Host working environment: 0°C - +50°C, relative humidity≤95%. ² Probe working environment: -20°C - +50°C, relative humidity≤95% ² Radiation safety performance: The equivalent dose rate at 1m from the radioactive source<2.5μSv/h, meeting the dose standard for a non-radioactive workplace as regulated by the State. Working beyond 1m for a long time has no influence on human health.

DF-PSM Online Ultrasonic Particle Size Monitor is an on-line slurry particle size analyzer. It can provide accurate and real-time on-line particle size analysis of slurry and is suitable for measuring particle size distribution from 25 μm to 295 μm in accordance with P80 standard. By using the feedback information of the instrument, the grinding circuit can be optimized, so as to improve the product quality, improve the recovery rate and reduce the energy consumption. DF-PSM Online Ultrasonic Particle Size Monitor generates a relatively stable and representative slurry flow through the sample conditioning unit, which is degassed. After degassing, the slurry is detected by ultrasonic attenuation measurement unit with ultrasonic transducer as the core component, and finally the slurry sample returns to the original process pipeline. During the measurement period, the probe transmits ultrasonic energy pulses at various frequencies through the sample and obtains multiple attenuation parameters from the received ultrasonic pulses. These parameters are directly related to the particle size distribution density of slurry samples. In the calibration model of each particle size, these parameters are used as variables to calculate the slurry concentration and particle size. DF-PSM Online Ultrasonic Particle Size Monitor system mainly includes: DF-PSM Online Ultrasonic Particle Size Monitor (standard configuration) and multi-channel converter. At the same time, according to the on-site process pipeline layout, slurry distribution boxes with different channels (including drainage and return pipes) are to be selected.

DGN density gauge is used for on-line detection of the density (concentration) of various liquids. It provides real-time data to guide industrial production. It is also possible to indirectly determine the content of solids through the density value of the measured liquid. DGN can be applied to: Density detection of raw ore, concentrate and tailings of a mineral processing plant; Density detection of flotation liquid in a coal preparation plant; Density detection of various kinds of solutions in petrochemical plants. 1. Different from the traditional radioactive density gauges, DGN doesn`t use Cs-137 as the source but an exemption Na-22 source with 1*106Bq activity is used instead. With this low amount of activity and this special nuclide, this source is usually considered as an exempted radioactive source by most of the atomic energy regulatory bodies. It is harmless to human body and causes no pollution to the environment. Meanwhile, it also maintains the high stability as a radioactive source. 2. The detector of DGN adopts high-sensitivity and high-efficiency scintillator. With automatic peak stabilization technology, DGN`s detector can compensate drifts caused by factors such as temperature changes or component aging. It has extremely high stability and greatly reduces instrument maintenance cost. 3. DGN detects density at a non-contact mode. The detector and Na-22 source are installed outside the pipeline, they are not affected by the harsh conditions of material viscosity, corrosion, high temperature, high pressure and abrasion. It ensures the long-term operation of DGN is more stable, reliable and durable. 4. DGN can adapt to any environmental factors, speed and liquid temperature due to its radiographic measurement method. 5. DGN is suitable for installation in a variety of process environments, which greatly meets the needs of customers.

The system is closely combined with coking production process, deeply integrates intelligent optimization, neural network, coal quality online analysis, radar level monitoring and laser three-dimensional imaging measurement technology. It is an expert system integrating intelligent optimization of coal blending, coke quality prediction, coal yard reserves and quality management, production monitoring and early warning and coking information management platform functions. The coking coal blending expert system can reduce the cost of coal blending, improve the quality of coke, realize all-round production monitoring and abnormal early warning, and reduce the coking cost by 10 yuan / ton under the premise of ensuring the coke quality. It plays an irreplaceable role in improving the economic benefits, improving the production management level and stabilizing the product quality of coking enterprises.

DFMC make Model EA-CEMENT cross-belt elemental analyzer has successfully installed at TASEK CORPORATION BERHAD, Malaysia. Although the nation is under lockdown due to covid-19, we still complete the installation & calibration in a short time through remote service platform & local partner`s supports. DFMC keeps providing stable supply chain and reliable after-sale services in a post-covid-19 world.

DF-RLS Radar Level Sensor is specially designed for non-contact level measurement in cement industry. It measures raw materials, additives, clinkers and cement products even under extreme environment such as heavy dust or high temperature, which are very common in cement plant. The robust design and featured functions enable DF-RLS radar level sensor gives stable and reliable measurement results. FMCW (Frequency Modulated Continuous Wave) technology is adopted by DF-RLS radar level sensor. It works like this: microwave signals with continuous linear changes are sent toward the medium through antenna, the material surface reflects signal waves, which are then received by the antenna. There is frequency difference between transmitting and receiving the signals, DF-RLS calculates this difference and tells the level. X-band possesses penetrability as well as anti-interference ability. 18° large beam angle covers large measurement area, avoid blind zone. Unique anti-feeding interference algorithm ensures more accurate measurement. Multiple measuring modes enables different application requirements.