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Five types of lime enterprises, included in the elimination of backward production capacity
July 31, 2019 Anonymous

According to Ding Meirong, a senior engineer in the Raw Materials Division of the Ministry of Industry and Information Technology of Hunan Province, Hunan ’s centralization of the lime industry is based on the “Industrial Structure Adjustment Guidance Catalogue” of the National Development and Reform Commission. The “shaft kiln” is included in the scope of eliminating backward production technology and equipment. According to the China Lime Association's “Notice on How to Define the Elimination of Backward Lime Production Technology and Equipment (Lime Earth Vertical Kiln)”, it will win the lime industry mines and fire the atmosphere The battle against pollution prevention will put

1.Various lime shaft kilns without limestone and fuel metering facilities.

2.Open lime kiln and lime shaft kiln without mechanized distribution facilities

3.The limestone kiln with no dust collection facilities or dust removal using gravity method and water film wet method

4. Lime shaft kiln without closed bottom and not equipped with mechanized ash unloading

5.The bottom of the kiln is not equipped with a mechanical lime kiln

Wait for 5 types of lime enterprises to be eliminated as backward production capacity. According to incomplete statistics, the above-mentioned lime kiln enterprises with backward production capacity have become a source of atmospheric pollution, accounting for about 60% of the industry's dust, carbon dioxide and sulfur dioxide pollutants.

,可对“石灰土立窑”进行如下改造: Anyang Hongye Technology Co., Ltd. specializes in the transformation of lime kiln , which can be modified as follows:

1. Increase the electronic weighing and mixing system of ingredients, effectively control the proportion of stone and coal, and achieve uniform mixing, providing a prerequisite guarantee for stable thermal calcination.

2.Installed sealed rotary multi-point distributor

2.1, uniform distribution, improve the calcination environment, reduce the furnace top temperature, reduce coal consumption by 5-20Kg.

2.2 The distributor adopts a sealed structure. Smoke and dust can only enter the dust removal system from the chimney, and will not leak from the furnace roof, which meets environmental protection requirements.

2.3. The stove top no longer requires labor, reducing the safety hazards of gas poisoning.

3. Add a disc ashing machine or reciprocating ashing machine at the bottom of the furnace, and two-stage sealing valve to achieve full sealing and ashing without stopping the wind.

It can increase the output and stabilize the working temperature of the calcination zone, which can obviously improve the quality of the lime kiln.

4. Add an automatic control system, and the computer program controls the production process, avoiding production instability caused by human reasons.

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