为解决现有湿式除尘器普遍存在的喷嘴易堵塞、滤网需频繁拆卸清洗、维护量大、设备尺寸过大导致安装空间有限等问题，自主研发了一种湿式旋流抽尘净化器，该设备主要由进水管、新型叶轮、锥形后盘、防水电机、旋流叶片、脱水筒组成，按功能分为进水布水、混合旋流和脱水排污3个单元。基于常见除尘器的3种叶轮特点，设计出一种有锥形后盘的新型叶轮。新型叶轮在防水电机带动下产生的高负压吸入含尘气流，同时将进水管出水吸至叶轮锥形后盘上形成水膜，实现第1次捕捉抽入粉尘；水流进入叶片间的动态文丘里通道后在机械作用下被充分破碎，在动态文丘里原理作用下完成第2次捕捉粉尘；经旋流叶片上形成的水膜实现第3次捕捉粉尘，并在离心力的作用下实现第1次脱水，以螺旋轨迹运移的含污气流经导流后通过脱水筒完成第2次脱水；第1次脱水与第2次脱水后汇聚到净化器内壁上的污水在风流与重力的双重作用下积聚到净化器内壁底部的排污槽处，从排污槽排出。通过三重粉尘捕捉与双重脱水作用，实现了高效抽尘、净尘、脱水的一体化。在山西某选煤厂精煤2次脱水与运输车间的现场应用结果表明，除尘前车间内全尘和呼尘浓度分别为87.7～118.7 mg/m3 和59.8～79.2 mg/m3，除尘后下降为2.9～3.2 mg/m3和2.0～2.2 mg/m3，全尘除尘效率达到96.3%以上。

In order to solve the common problems of existing wet scrubber such as easy clogging of nozzles, frequent disassembly and cleaning of filters, large amount of maintenance and limited installation space due to large equipment size, a wet cyclone scrubber was independently developed. The equipment mainly consists of water inlet pipe, new impeller, conical back plate, waterproof motor, cyclone vane and dehydrating cylinder. According to the function, it can be divided into three units: inlet water distribution, mixing swirling flow and dewatering blowdown. Based on the characteristics of three kinds of impellers of common dust collectors, a new type of impeller with conical back plate was designed. The high negative pressure generated by the new impeller driven by the waterproof motor inhales the dusty air flow, and at the same time sucks the water from the water inlet pipe to the conical back plate at the front end of the impeller to form a water film, which catches and draws in the dust at one time; after entering the dynamic Venturi channel, it is fully broken under the mechanical action, catches the dust at the second time under the dynamic Venturi principle; the third time is captured by the water film formed on the swirling blades, the secondary dehydration is completed through the dehydrating cylinder after the sewage gas transported by the spiral track flows through the diversion. The sewage that converges on the inner wall of the purifier after the first dehydration and the second dehydration has the dual effect of wind flow and gravity. It accumulates to the sewage tank at the bottom of the inner wall of the purifier and is discharged from the sewage tank. Through triple dust capture and double dehydration, the integration of high efficiency dust extraction, dust purification and dehydration is realized. The results of field application in the secondary dehydration and transportation workshop of clean coal of a coal preparation plant in Shanxi Province show that the concentration of total dust and respirable dust in the workshop before dedusting are 87.7-118.7 mg/m3 and 59.8-79.2 mg/m3 respectively, and the dust concentration after dedusting is reduced to 2.9-3.2 mg/m3 and 2.0-2.2 mg/m3, and the dedusting efficiency is over 96.3%.