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當前位置 -> 熱風爐首頁熱風爐知識工業熱風爐使用效率不足的原因 發布時間︰(2018/12/9)關鍵詞︰熱風爐

工業熱風爐使用效率不足的原因

 

眼下,我國各地都出台了對高耗能進行拆除、關停或改造的要求。此前,環保部發布的《關于執行大氣污染物特別排放限值的公告》也顯示出我國的環境改善將從末端治理走向源頭控制。有關人士表示︰我國工業在節能、減排兩個方面都有很大的改善空間。工業使用效率不足的原因︰效率不足節能潛力起大.我國工業量大面廣,平均容量。 乙#29615;亚APP下载為主。雖然我國环亚APP下载工業的設計效率與國外相比差距不大,但實際運行效率只有65%左右,比國外先進水平低10%-15%,一台通過冷凝水回收、提高爐內空氣溫度及安裝煤斗分層燃燒等技術改造,達到了最大程度的節能減排效果,一年下來節約成本約200多萬元。

At present, all parts of our country have issued the requirements for the demolition, shutdown or transformation of high-energy coal-fired hot blast stoves. Previously, the announcement on the implementation of the special emission limits of atmospheric pollutants issued by the Ministry of Environmental Protection also showed that China's environmental improvement will move from end-to-end treatment to source control. Relevant people said: China's industrial hot stoves in energy saving, emission reduction in two areas have great room for improvement. The reasons for the inefficiency of industrial hot-blast stoves are as follows: insufficient efficiency and high energy-saving potential. China's industrial hot-blast stoves are large in volume, small in average capacity and mainly coal-fired. Although the design efficiency of China's coal-fired industrial hot-blast stove is not much different from that of foreign countries, the actual operation efficiency is only about 65%, which is 10%-15% lower than the advanced level of foreign countries. A coal-fired hot-blast stove has achieved the greatest degree of energy saving and reduction through the technical transformation of condensate recovery, increasing the air temperature in the furnace and installing the stratified combustion of coal hoppers. The drainage effect saves about 2 million yuan a year. 我國环亚APP下载工業運行效率不足的原因比較多。總結後,主要有幾個方面︰

There are many reasons for insufficient operation efficiency of hot blast stoves in coal-fired industry in China. After summarizing, there are mainly several aspects:

一、工業設計制造方面的原因,在設計上更重視受壓原件部分,而對燃燒裝置部分重視不夠。

First, the design and manufacture of industrial hot blast stoves pay more attention to the compressed parts in the design, but not to the combustion devices.

二、工業在使用方面的原因,熱風爐用戶在選用熱風爐時所選容量與實際使用容量不匹配。

2. Reasons for the use of industrial hot-blast stoves. The capacity chosen by users of hot-blast stoves does not match the actual capacity.

三、工業熱風爐燃用的煤種與熱風爐的設計煤種不符,燃用煤的熱值、揮發分或顆粒度等煤質指標不符合熱風爐設計煤種要求。

3. The types of coal used in industrial hot-blast stoves do not conform to the design types of coal used in hot-blast stoves. The calorific value, volatile matter or particle size of coal used do not conform to the design requirements of hot-blast stoves.

四、工業熱風爐節能監督等相關制度法規不健全,技術標準相對滯後。

4. The relevant regulations and regulations on energy-saving supervision of industrial hot stoves are not perfect, and the technical standards are relatively lagging behind.

熱風爐窯爐改造技術成主流

Revamping Technology of Hot-blast Furnace and Furnace into Mainstream

未來將淘汰一些效率低、環境污染嚴重的舊式环亚APP下载熱風爐,因地制宜地對現有环亚APP下载熱風爐進行技術改造。在天然氣等資源豐富地區進行煤改氣,在煤氣資源貧乏地區,采用太陽能集熱器替代小型环亚APP下载熱風爐等措施。

In the future, some old coal-fired hot stoves with low efficiency and serious environmental pollution will be eliminated, and the existing coal-fired hot stoves will be technically reformed according to local conditions. In areas rich in natural gas and other resources, coal is replaced by gas. In areas poor in gas resources, solar collectors are used to replace small coal-fired hot stoves and other measures.

許多廠家目前都選擇了熱風爐窯爐改造,在工業ag88环亚娱乐、燃氣、环亚APP下载熱風爐設計制造時,為了防止熱風爐尾部受熱面腐蝕和堵灰,標準狀態排煙溫度一般不低于180℃,最高可達250℃,高溫煙氣排放不但造成大量熱能浪費,同時也污染環境。

At present, many manufacturers have chosen to reform the hot-blast stove. In the design and manufacture of industrial oil, gas and coal-fired hot-blast stove, in order to prevent the corrosion and ash plugging of the heating surface at the tail of the hot-blast stove, the standard smoke exhaust temperature is not less than 180 (?) C, up to 250 (?) C. High-temperature smoke emission not only causes a lot of heat energy waste, but also causes a lot of heat energy waste. Environment pollution.


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