摘要:
A coal reforming apparatus includes: a dryer body provided to dry low-quality coal; a pyrolysis body which pyrolyzes the dried coal thus dried; and a briquetter which compression-molds the pyrolyzed coal thus pyrolyzed. The coal reforming apparatus has a radical scavenger supplier which supplies drying gas with a radical scavenger so that the low-quality coal can be dried in an atmosphere containing the radical scavenger, the drying gas being supplied from a drying gas supply source and heated by a heater, the radical scavenger being formed of an organic compound having a hydroxyl group.
摘要:
A coal reforming apparatus includes: a dryer body and the like provided to dry low-quality coal; a pyrolysis body which pyrolyzes the dried coal thus dried, and the like; and a briquetter which compression-molds the pyrolyzed coal thus pyrolyzed, and the like. The coal reforming apparatus has a radical scavenger supplier which supplies drying gas with a radical scavenger so that the low-quality coal can be dried in an atmosphere containing the radical scavenger, the drying gas being supplied from a drying gas supply source and heated by a heater, the radical scavenger being formed of an organic compound having a hydroxyl group.
摘要:
A biomass hydrothermal decomposition apparatus includes, a biomass feeder (31) that feeds biomass material (11) under normal pressure to under increased pressure, a hydrothermal decomposition device (41A) that allows the fed biomass material (11) to be gradually moved inside a gradient device main body (42) from a lower end thereof with a conveyor screw (43), and also allows hot compressed water (15) to be fed from an other end of a feed section (31) for the biomass material into the main body (42), so as to cause the biomass material (11) and the hot compressed water (15) to countercurrently contact with each other and undergo hydrothermal decomposition, and that transfers a lignin component and a hemicellulose component into the hot compressed water, so as to separate the lignin component and the hemicellulose component from the biomass material (11); and a biomass discharger (51) that discharges, from the upper end of the device main body (42), a biomass solid residue (17) under increased pressure to an under normal pressure.
摘要:
The coal deactivation apparatus including: a separating device that separates out a portion of the beneficiated coal deactivated in the main treatment apparatus; a main evaluation apparatus into which the sample of the beneficiated coal separated out by the separating apparatus is supplied; a blower and heater that supply air at the evaluation temperature to the main evaluation apparatus; a temperature sensor that detects the temperature of the air that has heat-treated the sample in the main evaluation apparatus; and a control unit that, when the temperature of the air is at or below the lower limit on the basis of information from the temperature sensor, determines whether or not the temperature of the process gas is at or below the lower limit and if the process gas temperature exceeds the lower limit, controls the heater to reduce the temperature of the process gas by a prescribed value.
摘要:
A stirring apparatus includes a container with a rotary stirring shaft therein. On the opposite sides of the rotary stirring shaft are mounted an upper vertical flat blade and first inclined flat blades opposite to each other. A first vertical flat blade has a sweptback blade associated therewith, and is mounted to the stirring shaft at a position under the first inclined flat blades, and a second inclined flat blade or blades and a second vertical flat blade having an associated sweptback blade are mounted to the stirring shaft at a position under the upper vertical flat blade. When the stirring shaft rotates, ascending flows of liquid to be processed along the inner wall within a vessel are generated by the upper vertical flat blade and the first and second vertical flat blades that are each associated with a sweptback blade. Descending flows of the liquid to be processed are generated by the inclined flat blades, thereby enhancing the mixing performance.
摘要:
In treating exhaust gases containing SO.sub.2, HCl and HF, there is disclosed a method of treating such exhaust gas which comprises detecting the amounts of HCl and HF in the exhaust gas and supplying an amount of a magnesium compound commensurate with a stoichiometric amount to become at least MgCl.sub.2 and MgF.sub.2 in an exhaust-gas treating tower and a calcium compound as a SO.sub.2 solvent into the exhaust-gas treating tower.The aforesaid method of treating an exhaust gas comprises a method of causing Mn ion to coexist in an absorbing solution in contact with the exhaust gas.
摘要:
A method for continuously measuring the concentration of CaCO.sub.3 and/or CaSO.sub.3 in slurries comprising CaCO.sub.3 and/or CaSO.sub.3 is described. The method comprises continuouly sampling a given amount of the slurry, feeding the slurry into an agitated continuous reactor container which is isolated from the outside air and in which the slurry is kept at a temperature not lower than 70.degree. C., adding sulfuric acid or hydrochloric acid to the slurry to make the pH below 3, blowing air or nitrogen gas into the slurry in the reactor container, withdrawing from the container CO.sub.2 and/or SO.sub.2 produced by reaction of CaCO.sub.3 and/or CaSO.sub.3 with the acid by entrainment with the air or nitrogen gas, and calculating the concentration of CaCO.sub.3 and/or CaSO.sub.3 from the concentration of CO.sub.2 and/or SO.sub.2 in the withdrawn gas, the flow rate of the sampled slurry and the flow rate of the blown air or nitrogen gas.
摘要:
A method for controlling the concentration of a slurry in an absorption tower in which a flue gas comprising SO.sub.2 is brought into contact with a slurry containing suspended Ca compounds therein to absorb the SO.sub.2 with the compounds. The method comprises withdrawing the slurry from the absorption tower in such a way that the slurry is divided into at least two groups with different concentrations, one group being a slurry having a higher concentration of the Ca compound, the other group being a slurry having a lower concentration of the Ca compound, and regulating rates of the slurries being withdrawn from the absorption tower whereby the concentration of the Ca compound in the slurry being contacted with the flue gas is controlled.
摘要:
A coal reforming system of the present invention includes a drying furnace for drying low-grade coal, a carbonizing furnace for carbonizing the dried low-grade coal, hot air generating furnaces for supplying hot air to the drying furnace or the carbonizing furnace, and a carbonizing gas circulation line for supplying a carbonizing gas, which is generated in the carbonizing furnace, as a fuel for the hot air generating furnaces while the temperature thereof is maintained.
摘要:
The coal deactivation apparatus including: a separating device that separates out a portion of the beneficiated coal deactivated in the main treatment apparatus; a main evaluation apparatus into which the sample of the beneficiated coal separated out by the separating apparatus is supplied; a blower and heater that supply air at the evaluation temperature to the main evaluation apparatus; a temperature sensor that detects the temperature of the air that has heat-treated the sample in the main evaluation apparatus; and a control unit that, when the temperature of the air is at or below the lower limit on the basis of information from the temperature sensor, determines whether or not the temperature of the process gas is at or below the lower limit and if the process gas temperature exceeds the lower limit, controls the heater to reduce the temperature of the process gas by a prescribed value.