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浅析生物质热风炉燃烧系统的分类

文章出处:   发布时间:2018-07-12 15:41:14   浏览:69

认识生物质热风炉,认识燃烧系统。热风炉企业进行了整理,分类如下:
A、自控系统
控制系统采用高亮度、全中文显示,以名牌PLC控制系统为中央控制单元;以人机对话方式与热风炉用户交换信息,实现BMF热风炉全自动操作运行。 
B、吹灰系统 
热风炉配有全自动吹灰装置,可以定时对炉膛和烟管进行吹扫,保证烟管表面不出现积灰,从而实现热风炉的安全高效运行。 
C、烟风系统
送风系统:热风炉送风系统与燃烧器一体化布置,空气经鼓风机通过燃烧器送至炉膛,来达到输送燃料及助燃的作用。引风除尘系统:在引风机作用下,燃烧完成后产生的高温烟气经过在烟管中的对流换热进入除尘器净化,最后经引风机由烟囱排出。
11、生物质低压高温汽水热风炉.jpg
D、燃烧系统 
燃烧系统由燃烧器、风机、点火器等部件组成。生物质燃料在燃烧器中首先有一个预热过程,然后通过风机把燃料输送到炉膛进行燃烧。BMF燃料含有很高的挥发份,当炉膛内温度达到其挥发分的析出温度时,在给风的条件下启动点火器燃料就能够迅速着火燃烧。燃烧器温度控制是以炉膛内部温度为准,其温度与燃料气化时空气供给的量有关。热风炉负荷的调整通过给料量的调整来进行控制。燃烧后的烟气通过炉膛进入对流烟道进行换热,然后进入除尘器进行净化处理,最后排出完成整个燃烧和传热过程。 
E、 给料系统
给料系统由料仓、振动给料器、螺旋给料机、螺旋给料管等部件组成。    
在工厂中加工成型的BMF燃料通过皮带运输机转存到料仓中,然后再通过螺旋给料机把料仓中的BMF燃料供给燃烧器进行燃烧。为保证连续下料及物料输送的稳定性,在料仓和螺旋给料机之间连接一台振动给料器。
控制系统采用高亮度、全中文显示,以名牌PLC控制系统为中央控制单元;以人机对话方式与热风炉用户交换信息,实现生物质颗粒热风炉全自动安全可靠运行。 

To understand the biomass hot blast furnace and to understand the combustion system. The hot air furnace company has been sorted out as follows:
A, automatic control system
The control system uses high brightness, all Chinese display, the famous brand PLC control system as the central control unit, and exchange information with the hot air stove users by the human-computer dialogue mode, and realize the full automatic operation of the BMF hot blast stove.
B and soot blowing system
The hot air furnace is equipped with a fully automatic soot blowing device, which can be used to sweep the furnace and pipe regularly to ensure that the surface of the pipe does not appear to be ash accumulation, thus the safe and efficient operation of the hot air stove is realized.
C, smoke system
Air supply system: air blast furnace air supply system and burner arrangement, air through the burner through the burner to the furnace, to achieve the role of fuel and fuel. Air induced dust removal system: under the action of the fan, the high temperature flue gas produced after the completion of the combustion is purified through the convection heat transfer in the pipe, and the exhaust fan is discharged by the chimney.
11, biomass low pressure high temperature hot air stove.Jpg
D, combustion system
The combustion system consists of burner, fan, igniter and other components.  The biomass fuel has a preheating process in the burner first, then the fuel is transported to the combustion chamber through the fan. BMF fuel contains very high volatile, and when the temperature of the furnace reaches the precipitation temperature of its volatile matter, the ignition of the igniter can quickly ignite under the condition of air supply. The temperature control of the burner is based on the temperature inside the furnace, and the temperature is related to the amount of air supply in the gasifying space. The adjustment of the load of the hot blast stove is controlled by adjusting the feed quantity. After burning, the flue gas enters the convective flue through the hearth to heat the flue, then enters the dust collector for purification, and finally discharge the whole combustion and heat transfer process.
E, feed system
The feeding system is composed of a bin, a vibrating feeder, a screw feeder, a spiral feeding pipe, etc.
In the factory, the formed BMF fuel is transferred into the silo through a belt conveyer, and then the BMF fuel in the silo is fed to the burner through a spiral feeder. In order to ensure the stability of continuous blanking and material transportation, a vibrating feeder is connected between the hopper and the screw feeder.
The control system uses high brightness, all Chinese display, the famous brand PLC control system as the central control unit, and exchange information with the hot air stove users by the human-computer dialogue mode, and realize the automatic safe and reliable operation of the biomass pellet hot blast stove.

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