What industry does lime kiln belong to?
As an important equipment in industrial production, lime kiln is widely used in many industries. This article will combine the hot topics and hot content on the entire network in the past 10 days, conduct an in-depth analysis of the industry scope of the lime kiln, and display relevant hot information through structured data.
1. Industry affiliation of lime kiln
Lime kiln is mainly used to produce lime (calcium oxide), and its core process is to decompose limestone (calcium carbonate) by calcining it at high temperature. According to the "National Economic Industry Classification" (GB/T 4754-2017) issued by the National Bureau of Statistics, lime kilns clearly belong to:
| Industry code | Industry name | Segmentation |
|---|---|---|
| C30 | Non-metallic mineral products industry | Lime and Gypsum Manufacturing (C3012) |
The application of lime kiln also involves the following related industries:
| Related industries | Application scenarios | Heat index (last 10 days) |
|---|---|---|
| building materials | Cement production, wall materials | 85% |
| Environmental protection industry | Flue gas desulfurization, wastewater treatment | 78% |
| Metallurgical industry | Steelmaking slag forming agent | 63% |
2. Analysis of recent hot topics
Through the capture and analysis of data from the entire network, the hot spots related to lime kilns in the past 10 days are mainly concentrated in the following aspects:
| Ranking | Hot keywords | Amount of discussions (articles) | Main communication platform |
|---|---|---|---|
| 1 | Environmentally friendly renovation of lime kiln | 12,500+ | WeChat public account, industry forum |
| 2 | Double chamber lime kiln technology | 8,200+ | Zhihu, Bilibili technical videos |
| 3 | Lime price fluctuations | 6,700+ | Financial APP, Weibo topics |
3. Industry policy trends
The latest "Industrial Kiln Air Pollution Comprehensive Control Plan" released in 2023 puts forward clear requirements for lime kilns:
| Indicator type | Standard limits | Implementation time |
|---|---|---|
| particulate emissions | ≤30mg/m³ | January 2024 |
| sulfur dioxide | ≤200mg/m³ | Fully implemented in 2025 |
4. Technology development trends
Currently, lime kiln technology is showing three major development directions:
1.Energy saving: The new generation of suspended preheater can reduce heat consumption by 15%-20%
2.Large-scale: The daily production capacity of a single kiln exceeds 800 tons, becoming a new benchmark in the industry
3.Intelligent: The penetration rate of AI control systems in lime kilns reaches 37% (2023 data)
5. Market supply and demand analysis
| area | Capacity share | major companies |
|---|---|---|
| East China | 42% | Conch Cement, BBMG Group |
| North China | 28% | Jidong Cement, Shanshui Group |
According to the latest statistics, the total number of lime kilns nationwide in 2023 will be approximately 3,800, of which the environmental protection compliance rate is only 68%, leaving huge room for industry upgrading and transformation.
Conclusion:As the core production equipment of the non-metallic mineral products industry, the development of lime kilns is closely related to many important fields of the national economy such as construction, environmental protection, and metallurgy. As environmental protection requirements increase and technology advances, the industry is facing a critical period of in-depth adjustment, transformation and upgrading.
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