136万t/a球团工程项目供货商文件Brazil 1.36 million t / a pellet project in supplier单项工程名称：136万t/a球团工程Single Work Name Brazil 1.36 million t / a pellet project一，天然气烧嘴设备结构特点First, the structural characteristics of natural gas burner equipment1.1安装方式：水平安装。
1.1 Installation: horizontal installation.1.2天然气、空气与烧嘴采用金属软管连接。
1.2 natural gas, air and burner metal hose.1.3天然气火嘴配有空气喷枪和天然气喷枪、看火孔、高能点火烧嘴、火焰检测器以烧嘴砖部分。
1.3 Natural gas burner with the air gun and gas gun, watching the fire hole, high-energy ignition burner, the flame detector to block part of the burner1.4烧嘴喷枪采用套管结构，空气壳体和天然气喷枪可独立装卸。
天然气枪带有空气涡流导流器，燃烧空气经过气体涡流导流器后可以获得非常强劲的涡流状态。
当气体离开喷嘴时，气体的速度达到最大。
再通过带有耐火锥筒扩散器的气枪喷出。
在耐火锥筒的导流作用下，空气与天然气垂直相交，从而达到空气与天然气的完全预混合。
形成高强度预混式旋流燃烧，这种设计能够使火焰保持稳定高的设备弹性比。
1.4 burner tube structure with gun, air gun shells and natural gas can be independent of loading and unloading. Gas gun with an air swirl diffuser, combustion air through the gas swirl diffuser can be very strong after the vortex state. When the gas leaving the nozzle, the gas velocity reaches the maximum. With the fire and through the diffuser cone spray nozzles. Diversion in the fire under the cone, perpendicular to the air and gas, air and gas so as to achieve full pre-mixed. The formation of high-strength premixed swirl combustion, this design can make the flame stable than the high flexibility of equipment.1.5烧嘴设有看火孔以便现场观察火焰；自带空气吹扫入口。
1.5 burner with holes for observation to see the fire flame; own air purge inlet.1.6火焰检测器在高能点火烧嘴和主火嘴燃烧时均能正确判断火焰燃烧情况，作为火焰管理系统做点火控制和熄火保护依据。
1.6 flame detector in the high-energy ignition burner and the main burner combustion flame can correctly judge the situation, as do the ignition flame management system based on control and flame protection1.7烧嘴砖是由耐火衬里构成，衬里材料最高使用温度不大于1450℃。
衬里进行烘干处理，保证达到技术要求。
1.7 burner tiles constituted by the refractory lining, lining the maximum use temperature of not more than 1450 ℃. Lining for drying, to ensure that meet the technical requirements.1.8烧嘴能在以下条件下持续运行：烧嘴的操作弹性范围：30～130％,连续运行；在低负荷运行情况下，完全没有回火的危险。
燃烧器的允许压力降：燃料料≯400mmH2O, 空气≯300mmH2O。
天然气烧嘴燃烧能力调节比：1:10天然气进入乙方总管道调压阀前最大压力0.1 MPa（g）空气最大操作压力10kPa（g）火嘴燃气最大操作压力：10kPa（g）火嘴机械设计压力： 1.0MPa（g）火嘴机械设计温度：350 ℃1.8 burner to run continuously under the following conditions:Operating flexibility burner range: 30 to 130%, continuous operation; at low load operating conditions, there is no risk of backfire.Allowable pressure drop burner: fuel material ≯400mmH2O, air ≯300mmH2O.Ability to adjust the burner combustion gas ratio: 1:10B mains gas pressure regulator before entering the maximum pressure 0.1 MPa (g)Air Max operating pressure 10kPa (g)Maximum operating pressure of gas burners: 10kPa (g)Mechanical design pressure burner: 1.0MPa (g)Burner mechanical design temperature: 350 ℃1.9烧嘴采用空气和燃气比例调节方式。
链篦机及其热风管道通过热电阻测得温度型号传至PLC系统，预先设定系统来控制助燃空气阀组上的电动执行器，调节电动执行器的开度。
由Ø8信号管把压力信号传递给空燃比例调节阀形成压力联动，从而完成比例调节燃烧的方式。
给在天然气和空气管路均装有控制阀和安全装置。
在天然气总管上设有燃气减压阀、高低压检测保护、快速切断阀（电磁阀）等。
在空气总管上设有空气低压检测。
此外，每只烧嘴设有燃气比例阀、燃气电磁阀、空气电动调节阀及各种手动阀等组成烧嘴的燃烧系统，自动根据炉温要求调节烧嘴的燃烧能力，此外每只烧嘴还设有一个火焰监测装置实现燃烧全过程连续监视，一旦没有测到火焰，系统便会自动关闭天然气管路上的电磁阀。
1.9 ratio of air and gas burner by way of regulation. Grate and the hot air pipe temperature measured by thermal resistance model spread PLC systems,pre-combustion air valve system to control the electric actuators, electric actuators adjust the opening. By the Ø8 signal to control the pressure signal to the air-fuel ratio to form the pressure regulating valve cases of linkage to adjust the combustion ratio of the way complete. To the gas and air pipes are fitted with control valves and safety devices. Explorer is equipped with gas in the gas valve, high and low voltage detection protection, rapid shut-off valve (solenoid valve) and so on. Explorer on the air with air pressure testing. In addition, the proportion of each burner has a gas valve, gas solenoid valves, air valves and electric control valves and other components of various manual burner combustion system automatically adjust the burner combustion furnace capacity required, in addition to each burner There is also a burning flame monitoring device to achieve the whole process of continuous monitoring, once the flame is not detected, the system will automatically turn off natural gas on the way solenoid valve.1.10燃烧系统由燃气喷嘴、燃气阀系、风机、燃气流量调节阀、空气调节装置、点火装置、燃气压力检测开关、空气压力检测开关及火焰监测装置等组成。
点火时既可以手动，也可以自动。
当手动点火时，调到手动位置时，启动高能点火器，打开点火电磁阀，点着点火烧嘴，稳定后再开启天然气电磁阀，点燃主烧嘴，适当调整风阀。
1.10 combustion system by the gas nozzle, gas valves, fans, gas flow control valve, air conditioning, ignition device, gas pressure detection switch, air pressure switch and flame detection monitoring devices and other components. When the ignition either manually or automatically. When the manual ignition, transferred to the manual position, start the high-energy ignition, turn the ignition solenoid valve, lit burner ignition, stability, and then open the gas solenoid valve, ignite the main burner, adjust the air valve.1.10.1手动点火1.10.1 Manual ignition（1）、先做好通风准备工作，启动送风机，检查其是否正常运转，能否达到所需压力，启动后停止；(1), the first well ventilated preparation to start the blower, check for normal operation, can achieve the required pressure, started to stop;（2）、检查烧嘴前管路各阀门是否处于关闭状态，观察燃气压力表指示是否正确；(2), check whether the valve pipe before the burner is turned off to observe the gas pressure gauge is correct;（3）、检查烧嘴的通风阀调到需要的位置。