一种梯级过滤防尘面罩

By employing a tiered filtration design combining double-layer metal fiber cloth, electrostatic cotton, and meltblown fiber cloth, the KN100 dust mask addresses the issues of high breathing resistance and short filter layer lifespan in mining environments. This achieves efficient dust interception and the reuse of the filter layer, enhancing wearing comfort and protective effectiveness.

CN119034126BActive Publication Date: 2026-07-17CHINA ACAD OF SAFETY SCI & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA ACAD OF SAFETY SCI & TECH
Filing Date
2024-09-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing KN100 dust mask has high breathing resistance and low wearing comfort in high-concentration dust environments such as mines, making it difficult for workers to wear it continuously, and the filter cotton layer has a short service life.

Method used

The filter uses a double-layer metal fiber cloth for tiered filtration. The primary layer intercepts large dust particles, while the electrostatic cotton and meltblown fiber cloth provide fine filtration. The self-cleaning function of the metal fiber cloth extends the service life of the filter layer.

Benefits of technology

It achieves efficient interception of all dust and fine filtration of micro-dust, reduces breathing resistance, extends the service life of the filter layer, and improves wearing comfort and protective reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明是针对矿山、冶金、化工、建筑、陶瓷等高浓度粉尘工作环境,提出的一种基于金属纤维基梯级过滤构造的长效防尘面罩,包括面罩主体、过滤层结构及滤盒,过滤层结构包括双层金属纤维布、静电棉和熔喷纤维,双层金属纤维布的两层紧贴布置,为了取得更好的除尘效果,金属纤维束由8μm≤纤维直径≤12μm的金属纤维丝组成,当粉尘进入纤维束时,纤维束的数量达到上万根纤维丝可以改变捕获粉尘的流向,通过金属纤维布的物理编织通道实现全尘的初级拦截过滤,微细粉尘通过金属纤维布构造的减速转向通道后,在静电棉和熔喷纤维布中实现精细过滤,过滤效果较好。
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