40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Air filtering apparatus; Flue gas treatment installations; Flues; Soot reduction apparatus; Exhaust gas purification installations; Industrial air purifiers; Smoke purifiers; Nitrogen oxide removal installations; Catalytic gas purification installations. Flue gas purification services; Air pollution control services; Exhaust gas and smoke treatment services; Industrial air quality management services; Combustion gas treatment services; Treatment of hazardous chemical substances; Neutralization of hazardous gases; Nitrogen oxide treatment services; Catalytic treatment and purification of hazardous gases; Environmental pollution control services.
2.
DUST COLLECTION AND DENITRIFICATION EQUIPMENT, AND ENVIRONMENTAL SYSTEM COMPRISING SAME
An environmental system according to the present invention comprises: desulfurization equipment for desulfurizing exhaust gas provided from a boiler; and a plurality of pieces of dust collection and denitrification equipment for performing dust collection and denitrification on the exhaust gas provided from the desulfurization equipment, wherein the dust collection and denitrification equipment includes: a main body into which the exhaust gas flows from the desulfurization equipment; a dust collection part forming the lower region of the main body, and collecting, through a bag filter, dust from the exhaust gas provided from the desulfurization equipment; and a denitrification part forming the upper region of the main body, and including a honeycomb filter so as to denitrify the exhaust gas provided from the dust collection part.
B01D 46/56 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
B01D 46/02 - Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
B01D 46/682 - Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by nozzles
3.
Environmental equipment and power generation system using same
The present invention provides environmental equipment which is able to remarkably reduce operating costs and a power generation system comprising same, comprising: a boiler; a power generation unit for generating electricity by steam generated from the boiler; first denitrifying equipment to which exhaust gas is delivered from the boiler and which sprays a reducing agent into the exhaust gas to denitrify the exhaust gas; a low-low temperature electrostatic precipitator for collecting dust of the exhaust gas provided from the first denitrifying equipment; second denitrifying equipment which sprays a reducing agent into the exhaust gas provided from the low-low temperature electrostatic precipitator to secondarily denitrify the exhaust gas and allows the exhaust gas to be provided towards a smokestack.
A heat exchanger cleaning system comprises: a target rotating body which rotates around a rotation axis; a first inlet through which first gas on the target rotating body is introduced; and a first soot blower located in the inner space of the first inlet and including a first injection port through which a first substance is injected and a second injection port through which a second substance is injected, wherein a first distance of the first injection port from the rotation axis is substantially the same as a second distance of the second injection port from the rotation axis. A heat exchanger cleaning method using the heat exchanger cleaning system comprises: a step for positioning the first soot blower; a step for spraying the first substance and the second substance at the same time; and a step for removing foreign substances.
The present invention provides environmental equipment which is able to remarkably reduce operating costs and a power generation system comprising same, comprising: a boiler; a power generation unit for generating electricity by steam generated from the boiler; first denitrifying equipment to which exhaust gas is delivered from the boiler and which sprays a reducing agent into the exhaust gas to denitrify the exhaust gas; a low-low temperature electrostatic precipitator for collecting dust of the exhaust gas provided from the first denitrifying equipment; second denitrifying equipment which sprays a reducing agent into the exhaust gas provided from the low-low temperature electrostatic precipitator to secondarily denitrify the exhaust gas and allows the exhaust gas to be provided towards a smokestack; a first heat exchanger provided between the first denitrifying equipment and the low-low temperature electrostatic precipitator to cool down the exhaust gas provided to the low-low temperature electrostatic precipitator; and a second heat exchanger which is connected to the first heat exchanger, between the low-low temperature electrostatic precipitator and the second denitrifying equipment, to heat the exhaust gas provided to the second denitrifying equipment.
The present disclosure relates to a soot blower including: a lance tube which includes one end that reciprocally moves in one direction on a surface of an inlet port of a flow path of the tubular heat exchanger; a drive unit which is connected to the lance tube and reciprocally moves and rotates the lance tube in the one direction; a first nozzle which is connected to the one end of the lance tube and discharges steam to the inlet port; and a second nozzle which is disposed adjacent to the first nozzle and connected to the one end of the lance tube and discharges solid particles to the inlet port, and the present disclosure relates to a method of cleaning a tubular heat exchanger by using the soot blower.
A boiler facility includes a boiler having a combustion chamber in which a burner is installed, a fuel pipe for supplying fuel to the burner, an air duct for supplying air sucked by a blower to the boiler, an oxygen supplier having an oxygen pipe connected to the air duct and a flow rate controller provided in the oxygen pipe, and a control unit. The control unit sets an air amount that is smaller than the reference air amount for burning the fuel, and controls the blower so that the set air amount is supplied to the boiler. Further, the control unit sets an oxygen amount for fuel combustion, and controls the flow rate controller so that the set oxygen amount is supplied to the air duct.
F22B 1/22 - Methods of steam generation characterised by form of heating method using combustion under pressure substantially exceeding atmospheric pressure
The present invention relates to a catalyst activation method which maximizes the activity of a catalyst at a low temperature within a short time, thereby allowing high catalytic reaction efficiency even with a low energy and enabling the catalyst to have excellent durability, and a method for selective removal of nitrogen oxide by using the same.
B01J 31/12 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides
The present invention relates to a method for regenerating a catalyst that can effectively remove a poison bound to a catalyst without chemical injury while minimizing the loss of catalytically active components through a process with improved efficiency, whereby the regenerated catalyst may exhibit excellent denitrification performance.
The present disclosure relates to a soot blower and a method for cleaning a tubular heat exchanger by using the same, the soot blower comprising: a lance tube including one end reciprocating in one direction on the surface of an inlet port of a flow path of a tubular heat exchanger; a drive unit connected to the lance tube so as to reciprocate the lance tube in the one direction and rotate the same; a first nozzle connected to the one end of the lance tube so as to inject steam into the inlet port; and a second nozzle connected to one end of the lance tube while neighboring the first nozzle, so as to inject solid particles into the inlet port.
Boiler equipment comprises: a boiler including a combustion chamber in which a burner is provided; a fuel pipe through which fuel is supplied to the burner; an air duct for supplying air suctioned by a blower to the boiler; an oxygen supply part including an oxygen pipe connected to the air duct and a flow controller provided on the oxygen pipe; and a control unit. The control unit sets an air amount less than the standard air amount for fuel combustion, controls the blower such that the set air amount is supplied to the boiler, sets an oxygen amount for fuel combustion, and controls the flow controller such that the set oxygen amount is supplied to the air duct.
F22B 1/22 - Methods of steam generation characterised by form of heating method using combustion under pressure substantially exceeding atmospheric pressure
The present invention relates to an exhaust gas purifying apparatus comprising: a first duct that guides an exhaust gas containing foreign substances in a first direction; a foreign-substance receiving part formed on the bottom of the first duct to receive the foreign substances contained in the exhaust gas; a second duct that communicates with a purified-gas outlet formed on a side surface of the first duct and guides a purified gas, from which the foreign substances have been removed, in a second direction; and a first baffle installed to protrude toward the inside of the first duct and guiding an exhaust gas introduced into the first duct such that the flow direction of the exhaust gas is rapidly changed into the second direction toward the second duct, wherein the first duct includes: a first inflow part installed in a position relatively close to the second duct; and a second inflow part installed adjacent to the first inflow part and installed in a position relatively far away from the second duct.
B01D 45/08 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
B01D 45/12 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
The present invention relates to a method for regenerating a catalyst through a process with improved efficiency, the method more effectively removing a poisoning material coupled to a catalyst without physical/chemical damage to the surface of the catalyst while minimizing loss of a catalytically active component, thereby allowing a regenerated catalyst to exhibit excellent denitrification performance.
The present invention relates to a selective catalytic reduction denitrification plant for efficiently removing visible plume (yellow fume) using selective catalytic reduction in order to remove the visible plume (yellow fume) during gas turbine startup in combined heat power or the like. To this end, the reductant supply condition of the existing nitrogen oxide reduction apparatus through selective catalytic reduction is improved and the ratio of NO2/NOX is precisely adjusted, thereby creating an excellent effect of removing visible plume from exhaust gas with low temperature of 130°C or lower.
B01D 53/32 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by electrical effects other than those provided for in group
There is provided an exhaust gas treatment apparatus. The exhaust gas treatment apparatus includes: a main discharge passage through which exhaust gas of combustion equipment is discharged; an heat exchanger between the combustion equipment and the main discharge passage; a nitrogen oxide decreasing device connected to the main discharge passage to decrease nitrogen oxides of exhaust gas; a bypass connected from the combustion equipment to the main discharge passage as a passage bypassing the heat exchanger to supply high temperature exhaust gas from the combustion equipment to the nitrogen oxide decreasing device; and a variable exhaust regulator disposed between the bypass and the main discharge passage to vary the amount of relatively high temperature exhaust gas flowing in the bypass and the amount of exhaust gas flowing in the main discharge passage in a correlated manner.
F23L 11/00 - Arrangements of valves or dampers after the fire
F23J 15/04 - Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
F01N 3/02 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
The purpose of the present invention is to solve the problems of a difficult operation or occurrence of corrosion damage to equipment caused by the attachment of ammonium sulfate salt, which is generated when unreacted ammonia (NH3 slip) and sulfur trioxide (SO3) in exhaust gas are bonded with each other when a selective catalytic reduction (SCR) is used to eliminate nitrogen oxides that are contained in the exhaust gas generated during the combustion of a boiler or the like, to a heat exchanger of an air preheater (APH) or the like installed at the rear end of an SCR device and blocks a passage of the exhaust gas such that the pressure inside the boiler is increased. To this end, a dry ice cleaning device is installed at a front end of an inlet of exhaust gas in an air preheater such that the blocking of a heat exchanger caused by ammonium sulfate salt or the like is removed by spraying dry ice pellets, and at the same time, high-temperature steam spraying equipment is installed at a cooling end of the air preheater so as to spray the steam in the same direction as that of air supplied to a boiler, thereby removing contaminants more effectively. Furthermore, in order to effectively prevent blocking which occurs in a cooking end of the air preheater, dry ice is sprayed to a front end of an exhaust gas inlet of the air preheater and also, to a front end of an air inlet of the boiler which is an opposite direction thereof, such that a cleaning effect is increased.
There is provided an exhaust gas treatment apparatus. The exhaust gas treatment apparatus includes: a main discharge passage through which exhaust gas of combustion equipment is discharged; an heat exchanger between the combustion equipment and the main discharge passage; a nitrogen oxide decreasing device connected to the main discharge passage to decrease nitrogen oxides of exhaust gas; a bypass connected from the combustion equipment to the main discharge passage as a passage bypassing the heat exchanger to supply high temperature exhaust gas from the combustion equipment to the nitrogen oxide decreasing device; and a variable exhaust regulator disposed between the bypass and the main discharge passage to vary the amount of relatively high temperature exhaust gas flowing in the bypass and the amount of exhaust gas flowing in the main discharge passage in a correlated manner.
The present invention relates to a method for removing nitrogen oxides (NOx) more effectively at 300°C or less using a selective catalytic reduction (SCR) technique in boilers, incinerators, diesel engines, glass melting furnaces, and the like. To this end, by mounting an oxidation catalyst in front of an NOx-reducing device employing a conventional SCR technique and by adjusting the NOx composition ratio, i.e. the ratio of NO to NO2, to 1:1 in the exhaust gas, a de-NOx catalytic reaction is carried out under optimized fast-SCR conditions, thereby maximizing low-temperature de-NOx efficiency.
