Introduction to Pulverized Coal Distributor
Poetic Product Description
A treasure of structural features, it is the bridge in the blast furnace pulverized coal injection system that plays a leading role in evenly distributing pulverized coal to the blast furnace tuyeres. The new type of pulverized coal distributor developed by our company draws on the essence of various distributors in the past and integrates advanced foreign technologies.
This distributor has a conical shape, which has long surpassed the old-style bottle-type, disc-type and ball-type. The traditional bottle-type and disc-type branch pipes are mostly horizontally distributed, while the pulverized coal injection system relies on air pressure for transportation, so the wear and tear on the equipment is self-evident. Past distributors either had a throat structure with large resistance, or had an unreasonable inner cavity design that caused obvious pulsation when pulverized coal passed through, leading to unstable coal injection volume, or uneven distribution and severe equipment wear.
Today's product is the perfect solution to the above problems. It consists of a main pipe, a conical body and various branch pipes. The branch pipes are distributed at uniform angles above the cone, whether 90 degrees or 120 degrees, showing exquisite craftsmanship. The coal injection branch pipes (such as 8, 10, 12, etc.) are evenly arranged around the distributor body, with one end connected to the coal conveying main pipe and the other end connected to the pulverized coal lance.
This product is made of carbon steel, with precise craftsmanship and high geometric accuracy. The conical inner cavity design is both simple and ingenious, with small volume, light weight and convenient maintenance. Its inner cavity design is unique: the outlet area of each branch pipe is similar to the area of the inlet channel. When high-pressure solid-gas flow enters the inner cavity, a strong vortex is formed, which tightly wraps the pulverized coal and distributes it silently to each branch pipe. Such a design not only reduces the pulsation during transportation, makes the injection stable and reliable, but also achieves the ideal flow rate for users, and ensures that there is no vortex or pulsation when pulverized coal passes through.
This distributor achieves admirable accuracy in controlling the coal injection volume of tuyeres. Even under large coal injection volume, the error can be controlled within ±3%. Such a design makes the combustion in the tuyere raceways around the blast furnace hearth more uniform. The flow rate of pulverized coal in the distributor is similar to that in the pipeline, resulting in low wear and long service life. What's more worth mentioning is that it abandons the traditional throat structure, greatly reducing resistance loss and effectively avoiding problems such as throat blockage and accuracy decline caused by uneven wear.
This pulverized coal distributor is as poetic and picturesque. It is not only suitable for pulverized coal transportation under various solid-gas ratios in blast furnace coal injection systems, but also flexibly meets the transportation requirements of dilute phase and dense phase. It is not only the crystallization of technology, but also the embodiment of art.
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