Fluidized-bed boiler integrating multifunctional inertia-gravity separator with multiple furnace profiles

A fluidized-bed boiler integrating a multifunctional inertia-gravity separator and a plurality of models of boilers, the fluidized-bed boiler being a steam boiler, a hot-water boiler or a phase-transformation boiler, the fluidized-bed boiler comprising a hearth, a single/double horizontal drum, vertical and horizontal headers, rear membrane wall of the hearth, front membrane wall of the hearth, bilaterally symmetric membrane wall of the hearth, bilaterally symmetric three-in-one membrane wall, a primary high-temperature water-cooling inertia-gravity separator, a secondary low-temperature inertia-gravity water-cooling separator, a single-stage high-temperature water-cooling inertia-gravity separator, a membrane water-cooling wall shaft, a shell shaft and a dry-wall shaft;

• the primary high-temperature water-cooling inertia-gravity separator, the secondary low-temperature inertia-gravity water-cooling separator and the single-stage high-temperature water-cooling inertia-gravity separator comprising a guiding gas-solid directly-raising storage bin water-cooling wall, a guiding fume directly-raising storage bin spacer, a downward flue, an upward flue, a turning passage, a large capacity-expanding space, a storage bin and a back-feeding device;
• wherein the primary high-temperature water-cooling inertia-gravity separator is disposed in a space between the rear wall of the hearth and the front wall of the shaft;
• the secondary low-temperature inertia-gravity water-cooling separator is disposed at the height-equal border of the lower end of a multi-stage over-heater or coal economizer within the shaft and a bending point of the lower end of a vertical segment of the rear wall of the primary high-temperature water-cooling inertia-gravity separator, and extends downward;
• a fume outlet is separately provided in the rear upper part thereof;
• and the front sidewall and a rear sidewall are a heated water-cooling wall and an insulating wall, which are integrated to the main body of the boiler.