The residual pressure turbine power generation device of blast furnace gas utilizes the pressure energy and heat energy of blast furnace top gas, a by-product of blast furnace smelting, to make the gas do work through a turboexpander and convert it into mechanical energy, and then convert the mechanical energy into electrical energy.
TRT system design includes hydraulic turbines and generators, synchronous grid-connected transmission and distribution facilities, import and export pipelines and special valves, dehydration equipment, oil-water supply system, control system and station area. The design contents include process system selection, power generation calculation, equipment selection, layout and control.
In 1980s, how many buildings 1000m were built in China? The above blast furnaces are all equipped with TRT. 199 1 3200m per year? Dry electrostatic precipitator and dry TRT are used in blast furnace. With the development of technology, new large-scale residual pressure power generation turbines are often made into dry and efficient axial flow structures, and the imported static blades can be adjusted with the change of gas volume and pressure, and there are many improvement measures to prevent dust accumulation and corrosion.
TRT is an important residual pressure and waste heat energy recovery device in metallurgical industry. It is an energy recovery device that uses the residual pressure and waste heat of blast furnace top gas to introduce the gas into a turboexpander to do work and drive a generator to generate electricity.
The device can not only recover the pressure energy and heat energy of gas, but also purify gas and reduce noise pollution. At the same time, in normal operation, the device can replace the pressure reducing valve group to adjust and stabilize the top pressure, which has a good effect on ensuring the smooth operation of blast furnace and increasing production. The specific advantages are as follows:
1. After washing and dust removal, the original blast furnace gas passes through the pressure reducing valve group to reduce the pressure of about 220KPa to a suitable level and deliver it to users. This process consumes the residual pressure of blast furnace gas in vain. Through TRT unit, the residual pressure of gas can be converted into electric energy, and then it can be transmitted to the end users, and the original useless residual pressure can be converted into electric energy, which can obtain certain economic benefits.
2. It is better to adjust the blast furnace top pressure through the static blades of TRT unit than the pressure reducing valve group, which can bring more stable blast furnace top pressure, which can make the blast furnace easier to control and has a positive effect on the output.
3. Because the pressure reducing valve group is completely closed, the gas passes through the turbine, and the noise and vibration are converted into electric energy in the form of work, so the noise of the pressure reducing valve group can be effectively reduced.
Baidu encyclopedia -TRT (blast furnace gas residual pressure turbine power generation device)
Baidu encyclopedia-blast furnace residual pressure power generation