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| No.13594530

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Information Name: | Boiling furnace coal | Yu Sheng Machinery | Roaster |
Published: | 2014-11-12 |
Validity: | 0 |
Specifications: | Any |
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Detailed Product Description: | Fluidized bed furnace during normal operation adjustment is as follows: (1) adjustment of the amount ① headwind in the general case, the coal particles smaller than 10mm roaster images must maintain a minimum air flow 1200 m3 / (m2 · h). Otherwise it is difficult to normal boiling. ② excessive wind will increase the heat losses and incomplete combustion of solid heat loss, will continue to reduce the charge, thickness reduction, regenerative capacity decreased, is not conducive to running. (2) plenum static pressure regulating material layer thicker the greater the resistance, the material layers of different coals. Material layer is too thick, the resistance increases, headwind decline, affecting the normal combustion and boiler output; boiling furnace material layer is too thin, prone to "entrance" and "channeling" to make boil uneven and easy coke, you can run Observation plenum pressure gauge to understand the situation the material layer. (3) adjusting the temperature of the boiling layer ① material layer temperature is too high, easy coke; too low, easy to fire. When burning bituminous coal bed temperature should be controlled at 850 ~ 950 ℃; when burning anthracite coal bed temperature should be controlled at 950 ~ 1050 ℃. ② air volume and changes in the amount of coal likely to cause material layer temperature fluctuations, and therefore must be controlled with the wind coal should be appropriate to the coal should be uniform. When the normal operation of the boiler coal to put sowing the wind, when the coal moisture and particle size is larger, may be appropriate to increase the broadcast coal wind. ③ monitor material level inside the separator, such as the material level is too low, the material should be properly back off a small wind, level is too high, appropriate to open a large back feed wind. ④ for anthracite, when found furnace temperature drops, then speed up the stoker speed 1 ~ 2min, and then restore the original speed Henan boiling furnace, etc. 2 ~ 3 min later to see if the oven temperature to rise. If not, repeat the above process can be continuously; when the furnace temperature rises, the stoker to slow down the speed 1 ~ 2min and then restore the original speed, wait a few minutes to see if the oven temperature drop; if not, repeat the above methods. Mechanical heat loss is boiling furnace unburned major heat loss can be as high as 20% -30%. Sieving through a fine ash analysis, 65% -75% of the particles point within the range of 0.2-0.4mm total weight of fine ash, the carbon content of up to 60%. How to make less than 0.5mm boiling furnace ash burnout is the key to improve the thermal efficiency can be obtained from the following aspects: (1) suspension of high temperature and low smoke-speed segment boiling furnace models, while the cross-sectional area to increase the suspension period and less heating surface arrangement , the temperature of the suspension was much higher than 800 ℃, smoke velocity less than 1m / s, as small particles of coal in this calcination. (2) Set the ash reburn unit, located in the convection section filter, the filter removed all ash into the furnace complex in Hong Kong. This approach and high temperatures, combined with low-speed suspension segment can receive good results. (3) Set the fly ash or fly ash burnout chamber Vice-bed combustor. (4) Set the arch in the suspension period, the flue gas in the oxygen-rich region, strengthening the anoxic zone mixing, and carbon-containing small particles collide with the arch and burn. (5) the use of narrow screening coal particles, sub-bed combustion. Uniform particles with a narrow sieve into the furnace, choose the appropriate boiling wind speed in order to reduce the amount of fly ash, which is an effective way to improve efficiency. (6) the use of positive pressure to the coal and the coal in the inlet of the spiral increases the amount of wind, overcoming the problem of local hypoxia, can significantly improve the thermal efficiency. Lignite drying oven roaster high boiling boiling furnace slag sand drying drying drying bentonite roaster roaster roaster gas dual fluidized bed furnace blue carbon slime dryer drying equipment roaster roaster single coal | Yu Sheng Machinery | roaster from Xinxiang Yu Sheng Machinery Limited. Xinxiang City, Yu Sheng Machinery Co., Ltd. (www.zgsyjx.com) provide customers with "boiling furnace, stove, boiler accessories" such as business, the company has "Yu Sheng Machinery" and other brands. Focus on industrial boilers and accessories industries, Xinxiang in Henan have higher visibility. Welcomes inquiries, contact: Tang Min. |
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Copyright © GuangDong ICP No. 10089450, Xinxiang City, Yu Sheng Machinery Co., Ltd. All rights reserved.
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You are the 29461 visitor
Copyright © GuangDong ICP No. 10089450, Xinxiang City, Yu Sheng Machinery Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility