Sinter blower residual heat recovery turbine (Sinter blower residual heat recovery turbine), referred to as SHRT unit. The device connects the low-temperature waste heat turbine with the sintering main exhaust fan and the motor in series on the same shaft system through a variable speed clutch, and directly uses the flue gas waste heat generated by the sintering and the steam generated by the waste heat boiler to make the steam turbine output useful work and reduce the motor output. Merit. The equipment arrangement structure rhythm of this unit has obvious effect of energy saving and consumption reduction, and has very considerable economic benefits.
The SHRT unit applies today’s latest technology and the patent technology of Shaangu. According to the specific situation of the user’s site, the sintering waste heat recovery and sintering main exhaust fan are designed as the same system; the generator, power generation and distribution system are eliminated, and the automatic control system is merged. Lubricating oil system, regulating oil system, etc., avoid the loss of energy conversion; increase the speed clutch to ensure that the device will not affect the normal operation of the sintering production line under various working conditions, and can maximize the recovery of sintering flue gas The energy of waste heat.
This unit is mainly composed of low temperature waste heat steam turbine, variable speed clutch, sintered main exhaust fan and electric motor.
In this unit, the main sintering fan is designed as an independent system, and the power of the motor is still selected according to the maximum point power of the main sintering fan. The purpose is to drive the blower to operate under the maximum operating conditions regardless of the circumstances. , Does not affect the normal production of the sintering process.
When the sintering process is operating normally, the sintering flue gas passes through the waste heat boiler, which generates low-temperature steam to drive the low-temperature waste heat turbine to rotate. When the output speed of the variable speed clutch reaches the speed at which the main sintering fan is engaged, the variable speed clutch automatically engages and outputs work through the variable speed clutch, so that the low temperature waste heat steam turbine and the motor jointly drive the main sintering fan, and the output power of the motor decreases to achieve the purpose of energy saving.
When the whole unit is in normal operation, the demand for the air volume of the main sintering fan in various working conditions of the sintering process is mainly realized through the regulating door of the main sintering fan. In any case, the main sintering fan group is an independent system that can Fully meet the various operating conditions of the normal operation of the sintering process.
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