Abstract: A pyrolyzed coal quencher includes: a first water spray tube 79 that sprays water on pyrolyzed coal having a temperature of 300° C. or more obtained after pyrolyzing coal; a first cooling tube 80 that performs indirect cooling on the pyrolyzed coal obtained after spraying water by the first water spray tube 79 to a temperature of 100° C. or more; a second water spray tube 82 that sprays water on the pyrolyzed coal cooled by the first cooling tube 80 such that the pyrolyzed coal has a desired water content; and a second cooling tube 83 that performs indirect cooling on the pyrolyzed coal cooled by the first cooling tube 80 to a desired temperature of less than 100° C. Thus, the pyrolyzed coal can be promptly cooled and adjusted to a desired water content.

Abstract: A coal upgrade plant includes: a dryer 1 that dries coal; a pyrolyzer 3 that pyrolyzes the coal dried by the dryer 1; a quencher 5 that cools the coal pyrolyzed by the pyrolyzer 3; a finisher 7 that deactivates the coal cooled by the quencher 5; and cyclones 28 and 94 that collect pulverized coal generated from the coal, wherein the pulverized coal collected by the cyclones 28 and 94 is fed to an absorber fed to a scrubber 32 that treats a flue gas. Thus, the mercury generated from the coal upgrade plant can be removed.

Abstract: A coal upgrade plant includes: a dryer 1 that heats and dries coal before pyrolyzing the coal; a scrubber 32 that treats a carrier gas discharged from the dryer 1 while catching a desorbed component desorbed from the coal when the coal is dried by the dryer 1; a waste water treatment equipment 40 that treats waste water collected from the scrubber 32; and the scrubber 32 that uses recycled water treated in the waste water treatment equipment 40. Thus, water supplied to the coal upgrade plant from outside can be reduced as much as possible.

Abstract: A coal upgrade plant includes a dryer 1 that heats and dries coal before pyrolyzing the coal, and a scrubber 32 that treats a carrier gas discharged from the dryer 1 while catching a desorbed component desorbed from the coal when the coal is dried by the dryer 1. The coal upgrade plant further includes a carrier gas circulation path 22 that guides the carrier gas treated by the scrubber 32 to the dryer 1. A cyclone 28 is also provided on the upstream side of the scrubber 32. Thus, mercury and/or mercury-based substances generated in the dryer 1 can be removed.

Abstract: A coal deactivation treatment device for deactivating of coal by means of a treatment gas that is a mixture of air and nitrogen gas is provided with, among other things: a treatment column inside of which coal flows from the top to the bottom; treatment gas feed means, and the like, for feeding treatment gas to the inside of the treatment column; humidifying heaters for heating and humidifying the treatment gas such that the treatment gas fed to the inside of the treatment column can maintain a relative humidity of 35% or greater, even at 95° C.; a temperature sensor and a control device for adjusting the temperature inside the treatment column such that the inside of the treatment column is maintained at a relative humidity of 35% or greater and a temperature of 95° C. or lower.

Abstract: A coal upgrade plant includes: a dryer 1 that heats and dries coal before pyrolyzing the coal; a scrubber 32 that treats a carrier gas discharged from the dryer 1 while catching a desorbed component desorbed from the coal when the coal is dried by the dryer 1; a waste water treatment equipment 40 that treats waste water collected from the scrubber 32; and the scrubber 32 that uses recycled water treated in the waste water treatment equipment 40. Thus, water supplied to the coal upgrade plant from outside can be reduced as much as possible.

Abstract: A coal upgrade plant includes: a dryer 1 that dries coal; a pyrolyzer 3 that pyrolyzes the coal dried by the dryer 1; a quencher 5 that cools the coal pyrolyzed by the pyrolyzer 3; a finisher 7 that deactivates the coal cooled by the quencher 5; and cyclones 28 and 94 that collect pulverized coal generated from the coal, wherein the pulverized coal collected by the cyclones 28 and 94 is fed to an absorber fed to a scrubber 32 that treats a flue gas. Thus, the mercury generated from the coal upgrade plant can be removed.

Abstract: To provide a pyrolyzed coal finisher capable of deactivating pyrolyzed coal within a short time without causing a cost increase. A pyrolyzed coal finisher includes: a mixer 86 that forms slurry by mixing particulate pyrolyzed coal that is pyrolyzed coal into a chemical solution having an oxygen blocking function after being solidified; and a belt filter device 88 that filters the slurry formed in the mixer 86 in a state in which each particle of the pyrolyzed coal is coated with the chemical solution. The pyrolyzed coal finisher further includes a chemical solution circulation path 94 that guides the chemical solution separated from the pyrolyzed coal by the belt filter device 88 to the mixer 86.

Abstract: A coal upgrade plant includes a dryer 1 that heats and dries coal before pyrolyzing the coal, and a scrubber 32 that treats a carrier gas discharged from the dryer 1 while catching a desorbed component desorbed from the coal when the coal is dried by the dryer 1. The coal upgrade plant further includes a carrier gas circulation path 22 that guides the carrier gas treated by the scrubber 32 to the dryer 1. A cyclone 28 is also provided on the upstream side of the scrubber 32. Thus, mercury and/or mercury-based substances generated in the dryer 1 can be removed.

Abstract: A pyrolyzed coal quencher includes: a first water spray tube 79 that sprays water on pyrolyzed coal having a temperature of 300° C. or more obtained after pyrolyzing coal; a first cooling tube 80 that performs indirect cooling on the pyrolyzed coal obtained after spraying water by the first water spray tube 79 to a temperature of 100° C. or more; a second water spray tube 82 that sprays water on the pyrolyzed coal cooled by the first cooling tube 80 such that the pyrolyzed coal has a desired water content; and a second cooling tube 83 that performs indirect cooling on the pyrolyzed coal cooled by the first cooling tube 80 to a desired temperature of less than 100° C. Thus, the pyrolyzed coal can be promptly cooled and adjusted to a desired water content.

Abstract: A method for deactivating coal, in which coal is deactivated with a treatment gas containing oxygen, wherein a deactivation step for deactivating the coal in a temperature range 45-70° C. is carried out.

Abstract: In a method for gas treatment of coal wherein coal (1, 2) is loaded on a moving mesh conveyor (111, 112) having a quadrilateral mesh and heated gas (11, 12) is circulated from above and below so as to bring the heated gas (11, 12) into contact with the coal (1, 2) via the mesh of the mesh conveyor (111, 112), two layers of coal for lower level stacking (1A, 2A) having a diameter (Dl) that is greater than twice the length (Lss) of the short side of the mesh of the mesh conveyor (111, 112) are loaded on the mesh of the mesh conveyor (111, 112) and coal for upper level stacking (1B, 2B) having a diameter (Du) that is twice said length (Lss) or less is loaded on the coal for lower level stacking (1A, 2A).

Abstract: A coal deactivation treatment device for deactivating of coal by means of a treatment gas that is a mixture of air and nitrogen gas is provided with, among other things: a treatment column inside of which coal flows from the top to the bottom; treatment gas feed means, and the like, for feeding treatment gas to the inside of the treatment column; humidifying heaters for heating and humidifying the treatment gas such that the treatment gas fed to the inside of the treatment column can maintain a relative humidity of 35% or greater, even at 95° C.; a temperature sensor and a control device for adjusting the temperature inside the treatment column such that the inside of the treatment column is maintained at a relative humidity of 35% or greater and a temperature of 95° C. or lower.

Abstract: A method for deactivating coal, in which coal is deactivated with a treatment gas containing oxygen, wherein a deactivation step for deactivating the coal in a temperature range 45-70° C. is carried out.

Abstract: In a method for gas treatment of coal wherein coal (1, 2) is loaded on a moving mesh conveyor (111, 112) having a quadrilateral mesh and heated gas (11, 12) is circulated from above and below so as to bring the heated gas (11, 12) into contact with the coal (1, 2) via the mesh of the mesh conveyor (111, 112), two layers of coal for lower level stacking (1A, 2A) having a diameter (Dl) that is greater than twice the length (Lss) of the short side of the mesh of the mesh conveyor (111, 112) are loaded on the mesh of the mesh conveyor (111, 112) and coal for upper level stacking (1B, 2B) having a diameter (Du) that is twice said length (Lss) or less is loaded on the coal for lower level stacking (1A, 2A).