The present disclosure relates to a constant liquid level gasification furnace with a waste boiler comprising: a housing; an upper portion of the housing is defined as a gasification section, a middle portion of the housing is defined as a radiant section, and a lower portion of the housing is defined as a quenching section. The gasification section internally includes a membrane type water-cooled wall, wherein the inner region defined by the membrane type water-cooled wall is a gasification chamber. The radiant section internally includes a built-in radiant waste boiler assembly, wherein the internal region defined by the built-in radiant waste boiler assembly is a radiant chamber. The region defined by the quenching section is a quenching chamber.

A pulverized coal gasification device and process for producing high heating value coal gas with low carbon residue content includes a U-shaped coal gas generation furnace and a coal gas-semicoke separating device, and the U-shaped coal gas generation furnace consists of two section structures including high-temperature and low-temperature sections which are arranged in a U-shaped manner; the high-temperature section and the low-temperature section share an ash hopper; the high-temperature section is a downward entrained-flow bed, and the low-temperature section is an upward entrained-flow bed; and an inlet of the coal gas separating device is connected to the outlet of the low-temperature section, a solid outlet of the coal gas separating device is connected to an inlet of the high-temperature section, and a gas outlet of the coal gas separating device is connected to a coal gas waste heat utilizing and purifying system. The coal utilization rate can be greatly increased.

A cyclone integrated type storage device that helps to reduce equipment costs, which includes: a hollow pressure vessel; a cyclone provided in a vertically upper part of the pressure vessel and configured to swirl a produced gas introduced from outside and containing particles to thereby separate at least some of char from the produced gas, the cyclone including an opening and an exhaust port, the opening permitting discharge of the separated char vertically downward in the pressure vessel, the exhaust port permitting discharge of the produced gas to the outside of the pressure vessel; a particle storage chamber provided in a vertically lower part of the pressure vessel and storing the char discharged through the opening; and an outlet port formed in a bottom of the pressure vessel and permitting discharge of the particles stored in the particle storage chamber to the outside.

A cyclone integrated type storage device that helps to reduce equipment costs, which includes: a hollow pressure vessel; a cyclone provided in a vertically upper part of the pressure vessel and configured to swirl a produced gas introduced from outside and containing particles to thereby separate at least some of char from the produced gas, the cyclone including an opening and an exhaust port, the opening permitting discharge of the separated char vertically downward in the pressure vessel, the exhaust port permitting discharge of the produced gas to the outside of the pressure vessel; a particle storage chamber provided in a vertically lower part of the pressure vessel and storing the char discharged through the opening; and an outlet port formed in a bottom of the pressure vessel and permitting discharge of the particles stored in the particle storage chamber to the outside.

The invention is concerned with an integrated unit comprising a unitary boiler and gas cleaning apparatus. Preferably the integrated unit comprises a boiler unit, and gas cleaning apparatus, the integrated unit has a reaction unit and further comprises a radiant zone connected to the reaction unit, the radiant zone being connected to a convection zone. The integrated unit further comprises a heat exchange means encircling at least one of the radiant zone and the convection zone, and gas cleaning means is preferably provided around at least a part of the heat exchange means. The reaction unit may comprise a fluid bed boiler, gasifier or pyrolytic chamber and wherein fuel is burned completely; burned under pyrolytic conditions; or is gasified. The heat exchange means may comprise an annular heat exchange chamber and the gas cleaning means may be provided in an annular gas cleaning chamber encircling the heat exchange chamber.

The invention is concerned with an integrated unit comprising a unitary boiler and gas cleaning apparatus. Preferably the integrated unit comprises a boiler unit, and gas cleaning apparatus, the integrated unit has a reaction unit and further comprises a radiant zone connected to the reaction unit, the radiant zone being connected to a convection zone. The integrated unit further comprises a heat exchange means encircling at least one of the radiant zone and the convection zone, and gas cleaning means is preferably provided around at least a part of the heat exchange means. The reaction unit may comprise a fluid bed boiler, gasifier or pyrolytic chamber and wherein fuel is burned completely; burned under pyrolytic conditions; or is gasified. The heat exchange means may comprise an annular heat exchange chamber and the gas cleaning means may be provided in an annular gas cleaning chamber encircling the heat exchange chamber.

This invention provides for a self-sustaining fluidized bed reactor after the wave rotor reactor in which the reactor may be a fluidized bed reactor, a self-catalytic system, and may include an arrangement for the continuous removal and/or replenishment of particles in the fluidized bed, as well as possibly including a heater for heating the walls and/or a way for managing buildup of solids on the walls of the reactor.

This invention involves with a gasification system, which includes a gasifier, which gasifier comprises a gasification chamber for producing syngas from coal slurry and a quench chamber for cooling the syngas from the gasification chamber. The mentioned gasification system also comprises preheater located in the quench chamber for utilizing heat in the quench chamber to preheat the coal slurry before the coal slurry enters the gasification chamber. Wherein, the preheater comprises a pipe device defining a passage for the coal slurry to pass through, the passage in communication with the gasification chamber and upstream of the gasification chamber in a flow direction of the coal slurry. This invention also involves with a preheater used in the mentioned gasification system and the gasification method of the mentioned gasification device.

A char recycling system capable of easily determining whether or not a char exhausting pipe is blocked by char. The char recycling system comprises: a stand pipe (31) forming a vertically-downwards flowpath (33) through which char is conveyed; and a differential pressure gauge (41) that measures the pressure difference between the pressure in a downstream area (45) in the vertically-downwards flowpath (33) and the pressure in an upstream area (46) in the vertically-downwards flowpath (33). The pressure difference fluctuates when char accumulates between the downstream area (45) and the upstream area (46) in the vertically-downwards flowpath (33). As a result, this kind of char recovery system is capable of easily determining whether or not the vertically-downwards flowpath (33) is blocked by char, on the basis of the measured pressure difference.

A char recycling system capable of easily determining whether or not a char exhausting pipe is blocked by char. The char recycling system comprises: a stand pipe (31) forming a vertically-downwards flowpath (33) through which char is conveyed; and a differential pressure gauge (41) that measures the pressure difference between the pressure in a downstream area (45) in the vertically-downwards flowpath (33) and the pressure in an upstream area (46) in the vertically-downwards flowpath (33). The pressure difference fluctuates when char accumulates between the downstream area (45) and the upstream area (46) in the vertically-downwards flowpath (33). As a result, this kind of char recovery system is capable of easily determining whether or not the vertically-downwards flowpath (33) is blocked by char, on the basis of the measured pressure difference.