Dust removal system for medical waste incineration tail gas treatment

The dust removal system comprises a bag-type dust collector and an induced draft fan, an air inlet pipe is arranged at one end of the bag-type dust collector, an exhaust pipe is arranged at the otherend of the bag-type dust collector, an air inlet valve is arranged on the air inlet pipe, an exhaust valve is arranged on the exhaust pipe, a by-pass pipe is arranged between the air inlet pipe and the exhaust pipe, and a by-pass valve is arranged on the by-pass pipe. The air inlet valve, the exhaust valve and the bypass valve are all electrically connected with the controller, a temperature sensor is arranged at the position of the air inlet pipe, when the temperature sensor detects that the tail gas inlet temperature is lower than a low-temperature preset value or higher than a high-temperature preset value, the air inlet valve and the exhaust valve are closed, the bypass valve is opened, and tail gas passes through the induced draft fan from the bypass pipe. The bag-type dust collectoris reasonable in design st