PQ-2000 type høyovn pulverkullsprøyte (klassisk og praktisk modell)
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Shangye PQ-2000 type blast furnace pulverized coal lance (classic and practical model)
PQ-2000 is a practical lance developed for small and medium-sized blast furnaces, with simple structure and convenient operation as its core features: 1. Structural composition It consists of a lance barrel (main conveying channel), a lance head outer sleeve (protects the core component of the lance head), a porous lance head (key atomization component) and a lance head cover (for fixing and sealing). The overall structure is compact, and the assembly and maintenance are of low difficulty.
2. Core working principle Its core advantage lies in the design of the porous lance head: multiple round holes are evenly arranged on the lance head. When the pulverized coal airflow passes through, it is divided into multiple small streams, increasing the contact area with the hot blast of the blast furnace, achieving "rapid mixing and full combustion", effectively improving the utilization rate of pulverized coal and reducing the impact of unburned pulverized coal on the blast furnace condition. 3. Operation process • Start injection: Insert the lance into the straight tuyere of the blast furnace from the end with a bayonet, connect with the ball valve (lance check valve), and then start coal injection. The installation positioning is accurate and convenient. • Stop injection: After pulling out the lance, the elastic component in the ball valve (such as V-shaped metal shrapnel) automatically resets, pushing the conical piston plate to seal the channel, preventing the high-temperature blast furnace gas and hot blast from overflowing, and ensuring operational safety.
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