Industry Waste Fired Boiler
According to the relevant regulations of the National Tobacco Monopoly Administration, "waste tobacco monopoly products that need to be destroyed by various industrial and commercial enterprises in the industry must change their shape, color, and other characteristics (the crushed particles must not exceed 40 mesh) before they can be transported to the factory area for disposal.
The difficulty of tobacco stem incineration treatment is high because of the low combustion heat value of tobacco stems, high tar content in tobacco stems, adhesion characteristics of tar, high harmful alkali metal content in tobacco stems which is easy to accumulate ash.
01
Low heat value of tobacco stems The structure of the three-stage furnace, combined with the invention and innovation of key components in the circulation circuit, has changed the first stage ash circulation to two stage ash circulation, increased the number of circulation stages and formed a multi process feature. The effective combustion process in the boiler furnace is extended, which prolongs the fuel combustion time and makes the fuel combustion more sufficient; Meantime, the three-stage furnace is conducive to the arrangement of the boiler heating surface and the improvement measures in the arrangement of combustion organization and heat exchange surface have improved the thermal efficiency of the boiler. The operating thermal efficiency range of the boiler under design conditions is 88% -92%, saving customers' heat costs.
02
High tar content in tobacco stems with adhesive properties of tar By extending the effective combustion process of tobacco stem in the boiler furnace, harmful substances such as smoke and tar can be fully decomposed and burned out. It can effectively avoid slagging problems.
03
The high content of alkali metals in tobacco stems is harmful and prone to dust accumulation This technology arranges a convective heating surface downstream of the intermediate temperature separator, and the inlet flue gas temperature of the economizer is lower than the bonding and deposition temperature of the alkali metal, which can effectively prevent the accumulation of ash on the convective tube bundles.
| Serial number | Project | Emission indicators of this product | National standard limit GB13271-2014 | |||
|---|---|---|---|---|---|---|
| 1 | Smoke and dust concentration (mg/m3) | 15.1 | 50 | |||
| 2 | Sulfur dioxide (mg/m3) | 22 | 300 | |||
| 3 | Nitrogen oxides (mg/m3) | 37 | 300 | |||
| 4 | Blackness (level) | <1 | 1 | |||
| 5 | Mercury and its compounds (mg/m3) | 0.0006 | 0.05 |
Organized exhaust gas detection results
The "tobacco stem fired boiler technology" of Nowva Energy has been included in the annual key technology project of China Tobacco Corporation,
Obtained the first prize for technological progress from Hunan Tobacco Company
Through the energy-saving and clean combustion technology of industrial boilers, we have successfully reduced the emissions of coal-fired pollutants and promoted the industrialization of energy-saving, environmental protection technology and equipment in the industry.
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刘波
SNBC Production Supervisor
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