5 results about "Venturi scrubber" patented technology

The application discloses a biomass fluidized bed gasification system and gasification method suitable for downstream shift device, which comprises a fluidized bed gasification furnace, a cyclone separator, an oxidative cracking furnace, a venturi scrubber, a hydrocyclone and a water washing tower; the fluidized bed gasification furnace, the cyclone separator, the oxidative cracking furnace, the venturi scrubber, the hydrocyclone and the water washing tower are sequentially connected along a synthetic gas flow direction to form a synthetic gas flow route; the system of the application adopts a quenching process, and the water-steam ratio can be about 0.8; the downstream shift device does not need to be supplemented with water vapor, and consumption and investment are saved; the fluidized bed gasification furnace of the application has a high-temperature oxidation zone, tar can be fully cracked, the tar content at the outlet of the fluidized bed gasification furnace is effectively reduced, or there is no tar at the outlet of the fluidized bed gasification furnace.

The utility model relates to exhaust treatment technical field, concretely relates to a venturi scrubber, including spray tower, venturi, the spray tower is connected with venturi through arc transition pipe, is equipped with the air inlet on venturi upper end, is equipped with the exhaust port in spray tower top, the arc transition pipe is accessed spray tower in tangent direction, is equipped with heating pipe in spray tower bottom, is equipped with wall flow pipe mechanism, baffle demister, backflushing pipe mechanism in spray tower upper end in proper order, is equipped with blowdown pipe in spray tower bottom, still include reagent circulation system, the reagent consumption of the application can reduce through reagent circulation system, reduce operating cost, avoid the influence of pollutant concentration being too high to wash effect through the constant renewal of circulating liquid simultaneously, adopt the multistage treatment process of "venturi pre-coagulation, tangent air inlet centrifugal separation, countercurrent spray washing, baffle demisting", combine reagent circulation and heating temperature control, realize the efficient purification to industrial waste gas.

This disclosure provides an integrated system and method for waste heat utilization and harmful gas treatment of a tilting furnace flue gas. The system includes at least: a tilting furnace, a secondary combustion chamber, a waste heat boiler, a micro heat pipe array heat exchanger unit, a bag filter, a main fan, a Venturi scrubber, an oxidation desulfurization tower, an electrostatic precipitator, a GGH heat exchanger, an SCR denitrification reactor, and a relay fan. The technical solution of this disclosure achieves efficient utilization of high-temperature flue gas from the tilting furnace and, combined with the characteristics of the flue gas and the process, organically and holistically achieves harmful gas treatment. This not only realizes energy conservation, emission reduction, and environmental protection but also reduces the heat load of environmental protection equipment such as dust removal and desulfurization equipment.

The utility model discloses a washing system for wet-process phosphoric acid tail gas, and belongs to the technical field of phosphorus chemical industry. The system comprises a venturi scrubber, a scrubbing tower, a horizontal scrubbing spraying device, a tail gas fan and a chimney which are connected in sequence, the venturi scrubber and the scrubbing tower share a first circulating tank in the scrubbing tower; a water replenishing port of the first circulating tank is connected with a process water storage tank through a pipeline, and a water discharging port is connected with a dissolving tank of a fluosilicate production system through a pipeline; a water replenishing port of the horizontal washing and spraying device is connected with the ardealite backwater storage tank through a pipeline, and a water outlet of the horizontal washing and spraying device is connected with the wastewater treatment system through a pipeline. The Venturi scrubber and the scrubbing tower are additionally arranged, process water is adopted for water supplementing, scrubbing liquid is conveyed to the dissolving tank, fluorine and silicon can be recycled, the fluorine content in tail gas is reduced, and the horizontal scrubbing spraying device is prevented from being blocked; the horizontal washing and spraying device adopts ardealite backwater to supplement water, so that the consumption of the ardealite backwater is realized, and the treated tail gas meets the emission standard.

The utility model relates to a kind of device of gaseous hydrocarbon preparation acetylene cracking gas, including gaseous hydrocarbon heating furnace, oxygen heating furnace, acetylene cracking furnace, venturi scrubber and washing tower, the gaseous hydrocarbon heating furnace and oxygen heating furnace are respectively connected and communicated with the upper portion side wall of acetylene cracking furnace by input pipeline, the side wall of acetylene cracking furnace is also respectively connected and communicated with the side wall of washing tower by dust removal pipeline and overflow pipe, venturi scrubber is equipped on the dust removal pipeline, the bottom side wall of the washing tower is also connected and communicated with the top side wall of itself, acetylene cracking furnace middle portion side wall and the inlet side wall of venturi scrubber by spray pipeline respectively.The device of gaseous hydrocarbon preparation acetylene cracking gas of the utility model, by setting venturi scrubber, venturi scrubber replaces the electric dust collector in original process system, not only dust removal efficiency is high, venturi pipe flow rate is fast, but also can avoid the problem of acetylene cracking gas pipeline blockage occurs.