Lean coal boiler burning bituminous coal in a number of measures to change
Fuel is extremely difficult, even for bituminous coal, not to take certain measures,
Beats By Dre Headphones, exhaust gas ignition is difficult. To this end we take the lower eight fire in the mouth of a pulverizing system of tertiary air, the increased spending power of installed 2 of 2.4t / h of natural oil gun to help (within the top-level secondary air) and this Meanwhile,
herve leger toronto, the tertiary air time and will help fuel the flame in contact, will be transferred to a third angle of the wind 8. . After taking the above two measures, the number of cunning in the milling the cold furnace, the exhaust gas did not happen all point does not fire problems in order to ensure a smooth startup and safe boiler operation. 2. A wind speed increased to reduce the concentration of pulverized coal and primary air coal according to the original design rate,
MBTシューズ 販売店, Diefen concentration 0.51k ~ / kg. Change burning bituminous coal, the air temperature can not be adjusted in a case, after repeated adjusted trial, a King Air pressure control in the total water column of about 250mm, plow should be pulverized coal concentration 0.354kg/kg, can ensure normal fire . Individual coal concentration is too large, too close to the ignition point of the nozzle,
herve leger skirts, reducing to powder by the speed of adjustment after the second wind to get resolved. For the first two individual partial wind speed, running off a small throttle appropriately, so that the angle of a wind speed tends to be uniform. . 3 milling system of adjustment and control the fineness of pulverized coal burning bituminous coal in order to meet the need for change, seek to control the fineness of pulverized coal in the coarse Fan Wei in order to avoid an air temperature is too high, too close and cause ignition of pulverized coal burn nozzle. To achieve these goals, the first is the ratio of ball control, which 8O, 60, ~) 40mm three ball load ratio of 3:2:1. While coarse separator fold doors opening to the transferred 4O. Proper ventilation to improve the milling system, the operation of recycling 8O on the throttle opening to control the amount of coal to keep Don coal import and export differential is not greater than 15qmm water column. Moreover, according to the requirements of high-volatile bituminous coal, mill outlet temperature was controlled at 85 ℃ the following run. These adjustments throughout the trial run period to ask, milling system is operating properly. Test run CPC powder samples collected 15 times the average fineness R. . A, B system were 3O and 4l. Roo did not analyze the conditions imposed, the larger difference between the fineness of the two systems could not be adjusted. 4. Furnace conditions and bituminous coal burning steam temperature regulation reform, measures taken after the children, combustion stability, and exhaust gas well lit, full-load operating conditions, the measured furnace temperature of about 1450C, and cold gray burner a slight upper bucket coking phenomenon, revolves ###### was estimated to be due to low ash melting point. To avoid clogging the burner is burned coke nozzles need to strengthen the operation of clear focus. Changed after the flame burning bituminous coal shorter length, with three corners of the wind declination 8. , Then reduce the flame center, can be seen from the low end of the flue gas temperature has been confirmed throughout. The lower end of flue gas temperature, will inevitably affect the heat transfer convection heat conditions. To compensate for temperature and reduce the steam temperature smoke effects, we take the appropriate amount of air into the furnace to improve measures to improve the superheater, reheater and other heat absorption, the purpose to improve the steam temperature. Operation at high temperature preheater into the E1 oxygen control in the 8.5 or so, then the actual air into the furnace than the design value of about high 5xl0Nmslh. Increase the air flow after the full load steam drip can be close to the design value. High plus inputs, a base opening in warm water 2O% 100%, two slightly open by high pressure warm water solution column, a reduction in the opening warm 3O - 50%, two in the opening by warm water 2O or so, the main steam temperature has plenty of room for adjustment. Reheat steam temperature regulation can guarantee that through the flue damper to meet the design value. By the spring after several measures to ensure its stable combustion conditions, boiler output and the main parameters to achieve the design value. However, the long-running high-load, it is inevitable due to the ignition point closer to coal and coke on the burner spray Lu threat. Meanwhile, the fineness of pulverized coal to reduce air volume increases, not only reduces the heat dissipation rate of the boiler, Lai and aggravated wear tail heating of fly ash, neither economic nor security. In order to adapt to changing coal operation, building an air assault by mounted adjustable temperature cold (warm) air duct to accommodate the different coals on air temperature requirements. Operation according to the actual characteristics of coal, the first wind speed, adjust the fineness of pulverized coal to a reasonable extent, to ensure long-term safety of the boiler, run the economy. * Readers by editors. In line with the postal zip code} a department to accelerate the implementation of the work, the reader, the author manuscripts letters from the editorial department are requested to specify the zip code 2000O2, and please specify the reader,
herve leger sale, the author of the zip code area, they promptly contact the Kuai or want to set up The purchase of this issue of A 37 -
More articles related to topics：
herve leger skirts xcv csf wfvr jjq
Beats By Dre Studio vgb cnc nchi bxf
Beats By Dre Headphones lae blw pkjf mch
Linear Mode
