Please recommendation of the manufacturers of the the lignite dryer technology process more than 1,000 tons. Product speak with technical speak, the first person to do things, Dongding drying comprehensive strength to speak. Zhengzhou Dongding dry anaerobic drum lignite drying technology process industry-leading, production of lignite drying machine equipment production must be solid and orderly: cylinder welding work, must find in the cylinder is qualified, the best transmission equipment installation is completed the use of the auxiliary motor drum welding. Before welding the welder must be an examination, the content of the examination should be welded the four specimen (the steel specimen should be equivalent to the base metal of the cylinder, the electrode tube welding cylinder electrode.) By fluoroscopy, bending test, tensile strength test All those who pass will be allowed to participate in the work of the cylinder welding. The cylinder welding electrode should be consistent with the relevant provisions of GB5117 and Q/JCJ05 of its quality should ensure that the mechanical properties of the weld is not less than the mechanical properties of the base metal. The Dongding drum lignite dryer technology principle characteristics (1) dry lignite does not get damp absorbent: dried lignite larger physical and chemical changes in the pores collapse, the cross-linking reaction and tar migration of pores form a seal results The montanic becomes more and more hydrophobic, also can be observed to the hardening of the lignite, which also led to the formation of the rigid structure of the lignite. As a result, lignite from soft coal is converted to hard coal, is hydrophobic and hydrophilic conversion to stamp out lignite dry damp absorbent, which can achieve the long-distance transport of lignite. (2) dry lignite volatiles are effectively protected: the humidity content uploaded wet media, no volatile release conditions; (3) a high degree of automation, simple manipulation: a high degree of system integration, and with automatic intelligent monitoring system , real-time monitoring of the parameters of the hot stove furnace, the entrance to the dryer, the dryer outlet and induced draft fan entrance of the main parts of the temperature, pressure, flame, smoke oxygen, the system runs automatically control and adjust the parameters for automatic acquisition, fault alarm and security interlock protection. Vibrating feeder, dryer, cited devices such as fans, blowers, spiral feeder with frequency control, according to the needs of production and operating parameters, using the appropriate speed, not only can easily control the final moisture indicators but also save a lot of power. (4) Energy efficient: dry heat loss (drying) machine, high thermal efficiency; heat source coal burnout rate of pulverized coal up to 99% of the hot stove, the effect of heat transfer efficiency than traditional coal-fired hot air furnace section Coal 30 --- 50%; lignite powder produced by the drying process can be used as a fuel, which greatly reduces the cost of fuel. (5) Safety: seamless wind phenomenon unique sealing structure to discharge completely solve the sealing difficulty to achieve full oxidation negative pressure operation to eliminate the possibility of lignite combustion and explosion, safe and reliable operation.