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Control system applied to dual-fuel accurate combustion of double-hearth lime kiln
The invention relates to the technical field of lime calcination, in particular to a control system applied to dual-fuel accurate combustion of a double-hearth lime kiln. The system comprises an operator station, a PLC control system, a signal acquisition system and a control execution system. The signal acquisition system comprises a heat value analyzer, a gas flow meter and an optical pyrometer,the control execution system comprises a gas regulating valve, an air regulating valve and a rotary metering valve, the PLC control system receives signals of the signal acquisition system, the PLC control system transmits a signal to the control execution system, and the PLC control system is connected with the operator station through a switch and is used for transmitting signals to each other.According to the changes of supplied coal gas flow, heat value and kiln body temperature monitored by the signal acquisition system, the supply amount of coal gas and pulverized coal is automaticallyadjusted by controlling the execution system, and the combustion ratio is adjusted. The air-fuel ratio is rationalized through accurate control of double fuels of the double-hearth kiln during simultaneous combustion.
本发明涉及石灰煅烧技术领域，具体涉及一种应用于双膛石灰窑双燃料精确燃烧的控制系统。包括操作员站、PLC控制系统、信号采集系统、控制执行系统；其中，信号采集系统包括热值分析仪、煤气流量计、光学高温计；控制执行系统包括煤气调节阀、空气调节阀、旋转计量阀，PLC控制系统接受信号采集系统的信号；PLC控制系统传输信号至控制执行系统；PLC控制系统与操作员站经由交换机连接，用以相互之间传输信号；根据信号采集系统所监测到所供煤气流量、热值、窑体温度变化，通过控制执行系统自动调节煤气和煤粉的供给量，调整燃烧配比。本申请通过双膛窑双燃料在同时燃烧时的精确控制，达到空燃比的合理化。
Control system applied to dual-fuel accurate combustion of double-hearth lime kiln
The invention relates to the technical field of lime calcination, in particular to a control system applied to dual-fuel accurate combustion of a double-hearth lime kiln. The system comprises an operator station, a PLC control system, a signal acquisition system and a control execution system. The signal acquisition system comprises a heat value analyzer, a gas flow meter and an optical pyrometer,the control execution system comprises a gas regulating valve, an air regulating valve and a rotary metering valve, the PLC control system receives signals of the signal acquisition system, the PLC control system transmits a signal to the control execution system, and the PLC control system is connected with the operator station through a switch and is used for transmitting signals to each other.According to the changes of supplied coal gas flow, heat value and kiln body temperature monitored by the signal acquisition system, the supply amount of coal gas and pulverized coal is automaticallyadjusted by controlling the execution system, and the combustion ratio is adjusted. The air-fuel ratio is rationalized through accurate control of double fuels of the double-hearth kiln during simultaneous combustion.
本发明涉及石灰煅烧技术领域，具体涉及一种应用于双膛石灰窑双燃料精确燃烧的控制系统。包括操作员站、PLC控制系统、信号采集系统、控制执行系统；其中，信号采集系统包括热值分析仪、煤气流量计、光学高温计；控制执行系统包括煤气调节阀、空气调节阀、旋转计量阀，PLC控制系统接受信号采集系统的信号；PLC控制系统传输信号至控制执行系统；PLC控制系统与操作员站经由交换机连接，用以相互之间传输信号；根据信号采集系统所监测到所供煤气流量、热值、窑体温度变化，通过控制执行系统自动调节煤气和煤粉的供给量，调整燃烧配比。本申请通过双膛窑双燃料在同时燃烧时的精确控制，达到空燃比的合理化。
Control system applied to dual-fuel accurate combustion of double-hearth lime kiln
一种应用于双膛石灰窑双燃料精确燃烧的控制系统
ZHANG TAOTAO (author) / ZHANG HUIHONG (author) / CONG BAISONG (author) / WU BINKE (author) / SHI ZAIFENG (author)
2020-10-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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