The invention discloses an energy-saving and consumption-reducing magnesium oxide flue gas desulfurization process and an energy-saving and consumption-reducing magnesium oxide flue gas desulfurization device. The device consists of an absorbing tower, a neutralizing tank, a concentration and sedimentation tank, a centrifugal separator and a middle tank, and is characterized in that flue gas directly enters the absorbing tower without passing through a pre-washing tower; a cooling spray layer is arranged in the absorbing tower to cool down the entered flue gas, so that area occupied is reduced; a filtering and slag removing device is arranged behind an extraction pump, so that purity of magnesium sulfide serving as a byproduct is improved; the neutralizing tank is provided with a magnesium hydroxide feed port; and supernatant of the concentration and sedimentation tank and dilute solution separated by the centrifugal separator are used as absorption liquid to newly enter the absorbing tower after passing through the middle tank. The entire desulfurization system has the advantages of simple process, no secondary pollution, low energy consumption and small occupied area and is particularly suitable for enterprises with magnesium oxide resources and small reserved lands.

Energy-saving and consumption-reducing magnesium oxide flue gas desulfurization process and device

The invention discloses a dedusting, desulfurization and denitrification environment-friendly chimney, and belongs to the field of environment friendliness, and a flue gas purifying device is provided for coal burning flue gas. The environment-friendly chimney is characterized in that the upper part of a spraying tower (1) is connected with a wet-process static electricity tower (2) in series, and the lower part of the spraying tower (1) is connected with a concentrated and oxide tower (5) in series; the upper part of the wet-process static electricity tower (2) is connected with a warming tower (3) in series; the upper part of the warming tower (3) is connected with a catalytic tower (4) in series; the spraying tower (1) is internally provided with a spraying system (6); the upper part of the concentrated and oxide tower (5) is provided with a concentration tank (7), and the bottom of the concentrated and oxide tower (5) is provided with a circulating tank (12); the bottom outlet of the concentration tank (7) is provided with an packing auger or a dehydration machine (10); the upper surface of the circulating tank (12) is provided with a circulating pump (13), a mill system (14), a transport vehicle (11) and a stirring machine (15); and the outer wall of the concentrated and oxide tower (5) is provided with an overflow oxidation wall (8), an overflow layer (9) and an inclined hole (16).

Dedusting, desulfurization and denitrification environment-friendly chimney

The invention provides a comprehensive reutilization system of heating boiler wastewater. The system comprises a wastewater collection tank; a precipitate filtering unit receiving the wastewater from the wastewater collection tank and carrying out precipitate filtering treatment of the wastewater, wherein the precipitate filtering unit comprises a precipitating pool positioned at the bottom of the precipitate filtering unit, an automatic alkali addition device positioned on the precipitate pool, a mixing pool positioned above the automatic alkali addition device and used for mixing alkali added wastewater with a medicine, and a water purifying pool positioned above the mixing pool; an automatic medicine device which is connected with the mixing pool and inputs the medicine to the mixing pool; and a concentrating pool for pumping clean water from a clean water pool. The comprehensive reutilization system has the advantages of wastewater recycle efficiency improvement and cost saving.

Comprehensive reutilization system of heating boiler wastewater

Comprehensive industrial wastewater processing method

The invention discloses a harmless garbage comprehensive processing and utilizing system which comprises a garbage incinerator, a cyclone dust collector, a heat recovery boiler, a dioxin dynamic removing reactor, a scrubber tower, a cyclone dehumidifier and a calcium chloride recoverer, wherein a feed inlet of the garbage incinerator is connected with a screw feeder, an upper smoke outlet of the garbage incinerator is connected with the cyclone dust collector in series and connected with a smoke inlet of the heat recovery boiler, a smoke outlet of the heat recovery boiler is connected with a smoke inlet of a dioxin remover, a smoke outlet of the dioxin dynamic removing reactor is connected with the scrubber tower, the bottom of the scrubber tower is connected with a calcium chloride recycling water tank, a smoke outlet of the scrubber tower is connected with the cyclone dehumidifier, and a smoke outlet of the cyclone dehumidifier is connected with a chimney

Harmless garbage comprehensive processing and utilizing system

The invention relates to a smoke desulfuration method in boiler, and relative device. Wherein, in spray tower, it uses ash wash slag water to dissolve the SO2; then enters into neutralize device filled with block lime stone or raw magnesite, while the SO2 will process neutralization as well as washed by drops, removes the product; enters into ash slag pool, separates solid and liquid; recycles the ash wash slag water. The invention has low cost and low power consumption.

Coal burning flue gas desulfurization method and device

The invention relates to a method for neutralizing smoke desulfuration acid water, and relative device. Wherein, it uses ash water slag water as the desulfuration medium of boiler; the desulfurated acid water is neutralized by alkali mineral; it uses neutralize pool filled with block lime stone or raw magnesite, as alkali material. The invention has simple process and low cost.

Method and equipment for neutralizing acidic water after desulfurization of coal burning gas

The invention relates to a smoke desulfuration method in boiler. Wherein, it uses the ash wash slag water as the water source of smoke desulfuration; the liquid outside the spray tower is used to transmit ash slag; the bottom of spray tower is arranged with block alkali material, to improve the water alkali. The invention comprises spray tower, ash wash slag groove, ash slag pool, deposit pool, adjust pool, slag spade, fan, several cyclone dust collector, and several tube. The invention has low cost and low power consumption.

Zhongsheng Liu

Papers

Coal burning flue gas desulfurization method and device

Method and equipment for neutralizing acidic water after desulfurization of coal burning gas

Coal burning boiler flue gas desulfurization method and device