Sanmin Baghouse bag Frame Dust Proof Air filter bag venturi tube

The venturi scrubber is a typical wet scrubber consisting of a venturi scrubber and a dewatering scrubber (cyclone, packed or baffle). The dust removal mechanism is the combined action of inertia, adhesion and diffusion, mainly inertia.
The venturi consists of three profiled tubes (i.e. a long tube formed by a shrink tube, throat and diffuser tube) and a water spray device. The advantages of venturi dust collector are high dedusting efficiency, up to 99%, elimination of fine dust particles below 1 μ m, small equipment, less investment, fast startup, easy and reliable operation. It is not only used for dust removal, but also used for demisting, cooling, absorption, evaporation and other aspects, so it is widely used. In China, two series venturi scrubbers can be used to cool and purify the gas and meet the quality requirements of gas temperature and ash content of 10mg/m3. However, the venturi has large pressure loss and water consumption.
The venturi of blast furnace gas purification system can be divided into two types according to whether there is overflow water membrane at the throat. One is the venturi with a layer of uniform water membrane at the throat, which is generally called overflow venturi; The other type is venturi without water film at throat. It can also be divided into two types according to whether there is regulating equipment at the throat. One is that the throat is equipped with regulating device, and the adjustable throat diameter is called the regulating venturi; The other type is that the throat part has no regulating device and the throat is fixed, which is called fixed venturi. Therefore, the commonly used venturi is divided into overflow regulating venturi, overflow sizing venturi, regulating venturi and sizing venturi