By-pass Neutron Activation Coal Analyzer Dandong Dongfang Measurement & Control Technology Co.,Ltd

公司简介 Company Profile Established in 1996, Dandong Dongfang Measurement & Control Co., Ltd. features the largest company specialized in mine automation in China with the highest market share. In addition, it is also the biggest inline industrial detection instrument manufacturer in Asia and one leading enterprise in National Digitalized Mine Program in China. Product Overview As one kind of by- pass online coal material detection equipment, DF- 5703(B) offline neutron activation coal analyzer (Fig. 1- 1) has momentous significance in coal washing, coal blending, quality analysis for the incoming...

inhibitor inhibits interference rays and the thermostat elements keep the detector temperature Product Structure constant. DF- 5703 (B) by- pass neutron activation coal analyzer consists of an analyzer module, neutron source, detector, signal processing box, motor control box, main unit, coal bucket, drum guard, coal unloading port and support made of channel steel, etc. 4. Electronic control box The electronic control box contains peripheral devices of detectors, electronic signal processing components and temperature control components. The peripheral devices of detectors supply HV and LV power...

Working Principle Technical Parameters DF- 5703(B) adopts prompt gamma neutron activation analysis (PGNAA) technology. The neutron Table 4-1 Technical parameters of DF-5703 (B) source emits rapid neutrons with average energy at 2.35Mev, which are then degraded into thermal neutrons by the measuring unit. The thermal neutrons radiate materials, so that the energy in characteristic gamma ray, the element categories in the material can be distinguished, and by testing the intensity of gamma ray with specific energy, the content of element can be got. Total system length Clearance height requirement...

Product Application In coal analysis field, DF-5703 (B) is mainly used in online quality detection in coal washing, coal blending, quality analysis of incoming and outgoing coal, quality analysis for blending of coal putting into the furnace as well as production process control. In combination with the truck, train or belt sampling device, it can detect the incoming coal and present the coal analysis data to avoid disputes arising out of the contract. Based on the real-time coal detection information presented by the analyzer, it realizes coal blending function by controlling the feed quantity...

automatic control technique, in order to optimize coal blending and loading, stabilize coal Product Characteristics composition, reduce fine coal consumption and cost as long as various coal quality data meet the By virtue of the by- pass sampling device structure, the accuracy of the analyer is nearly 50% higher than that of cross-belt analyzer. Accuracy: It can shape the materials, and cannot be influenced by loading changes; Effectiveness: To provide key parameters and data for production, so as to make effective control; Stability: Two- loop temperature control and automatic peak stabilizing,...

Appendix Radiation Protection Cf isotope neutron source which emits neutron rays with average energy of 2.35MeV and some γ rays. The radioactive substance is encapsulated by double-layer shell. The Radioactivity is the most common, most basic and most active natural phenomenon in the inner layer is made of platinum-rhodium alloy and the outer layer is made of stainless steel. The universe. The main source of motion and energy in the universe is radioactivity. Any active star in entire source core is mounted inside a source cell. The high atomic number material outside the the universe is produced...

^K^^^T DAN DONG DONGFANG MEASUREMEOT&CONTROL TECHNOLOGY CO..LTD. Appendix Dose Received in Everyday Life DFMC leader in the world of Measurement & Control 3. Radiation Protection Methods Called as "Three Radiation Protection Principles" By using the characteristics that rays can be absorbed (shielded) by the substances, heavy metals or heavy substances like cement shield radioactive rays, thus greatly reducing transmitted ntensity. For example, 7cm-thick lead can attenuate y rays emitted by 137Cs by 2,000 times. When persons are away from radioactive sources, the attenuation rate of transmitted...

^^-L^^^^ Dandong Dongfang Measurement & Control Technology Co.,Ltd. Address: No. 136, Binjiang M. Road, Yanjiang Development Zone, Dandong, Liaoning, China E-mail: [email protected] Website: www.dfmc.ee