。除尘系统是大气污染治理技术中的重要组成，除尘设备品种、性能和系统的维护管理水平与国外比较还有较大差距。散发粉尘和有害物质的工艺设备，其吸尘罩和除尘器很少配套出厂。除尘系统正常运行的仅是少数。
炉窑烟尘净
1.1 冲天炉
国际铸造协会铸造工业环境控制委员会早在1980年就总结发表了“冲天炉除尘”文献。我国于1988年公布了国际GB8959-88“铸造防尘技术规程”，1992年机械部环保办批准了“冲天炉除尘配套方案”。对热风冲天炉除尘及余热利用的技术，研究和实践较少。
目前，常用的冲天炉除尘设备主要有：
（1）旋流除尘器，这是一种有二次风的高效旋风除 dusting器，是仿制80年代初原西德产品。
（2）袋式 exclude dusting器，在国内外已被广泛应用于冲天炉 exclude dusting。
（3）颗粒层 exclude particle器，我国在70年代初应用于冲天炉，由于存在一事实上缺点而未被推广。但在80年代未作了改进后有一事实上 apply value.
（4）电 exclude dusting器。我国则没有使用。
（5）湿法 exclude dusting器，我在国内外目前已极少采用。
1.2 炼钢电弧 furnace
炼钢电弧 furnace排烟方式主要有：furnace外排烟、furnace内排烟以及furnace内外结合三种。目前主要有以下几种排烟方式效果较好。
（1）furnace外排 smoke
furnace 外 排 smoke采用的排 smoke 罩有：伞形罩、furnace盖罩、钳形罩、高度密闭罩等。
2 铸造 equipmentexclude clear device outside, basically not equipped with factory, current casting equipment's exclude clear device mainly adopts bag-type exclusion.
3 cement production equipmentexclude water and gas pollution in the cement industry, but it is difficult to achieve due to the nature of the raw materials used in this industry.
4 exclusion devices 4.1 Cyclone Exclusion Device
The main new products developed in recent years include:
Multi-imported cyclone exclusion devices, which are divided into two categories: one for solid-gas separation and another for liquid-gas separation.
Cyclone Exclusion Device with a multi-stage separator that can separate particles as small as 0.01 microns from the air stream.
The cyclone exclusion device has been improved by adding a second stage separator that can separate particles as small as 0.001 microns from the air stream.
4.2 Bag-type Exclusion Devices
The main new products developed in recent years include:
A bag-type exclusion device with a pulse jet cleaner that uses compressed air to clean out collected dust and debris from within the bags.
A bag-type exclusion device with an electrostatic charge on its surface that attracts charged particles such as PM10 and PM25.
A bag-type exclusion device made of Teflon material that has high temperature resistance up to 260°C (500°F) and can withstand harsh chemicals such as sulfuric acid and hydrochloric acid.
5 Water Treatment
Water treatment is also an important aspect of environmental protection, especially for industries like textile manufacturing where large amounts of water are used daily.
6 Recycling
Recycling is another way to reduce waste disposal costs while protecting our environment at the same time.
7 Waste Management
Waste management is critical because it helps prevent pollution caused by improper disposal methods or lack thereof.
In conclusion, industrialization brings about many benefits but also poses challenges when it comes to environmental protection measures such as excluding harmful pollutants from factories' emissions.
I hope this article provides you with valuable insights into how China's industrial sector addresses these challenges through innovative technologies like those mentioned above.
Thank you for your attention!
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