16 results about "Venturi scrubber" patented technology

A method / system, which can be modified from the Flexicoking™ process / system, includes introducing a heavy petroleum feed into a fluidized bed in a reactor and converting the feed via a coking operation within the fluidized bed, producing an overhead stream with entrained coke fines from the reactor overhead and solid coke from the base of the reactor. The method includes injecting the solid coke into a fluidized bed in a burner and combusting the solid coke in the burner, producing hot coke particles. The method includes recirculating a portion of the hot coke particles to the fluidized bed in the reactor, discharging the remainder of the hot coke particles from the base of the burner and a flue gas from the burner overhead, and passing the flue gas and a caustic dispersion to a venturi scrubber to obtain a scrubbed flue gas. More petroleum coke can be produced from the method / system.

The venturi-type scrubber may be used in conjunction with the removal of solids and quench gas-phase reaction products from the gas-phase reaction products. A method can include: providing a reaction product comprising a hydrocarbon gas and a solid; introducing the reaction product into a venturi type scrubber; introducing a scrubbing fluid into the venturi-type scrubber, wherein the scrubbing fluid is at a lower temperature than the reaction product; generating, by the venturi scrubber, a heterogeneous product comprising a scrubbed reaction product and a waste scrubbing fluid, the scrubbed reaction product comprising the hydrocarbon gas, and the waste scrubbing fluid comprising the scrubbing fluid and the solids; and separating the hydrocarbon gas from the multiphase fluid. A system may include a reactor; a venturi-type scrubber having a first inlet fluidly connected to the reactor and a second inlet configured to receive a scrubbing fluid; and a separation column configured to receive a multiphase stream from the venturi scrubber after solids are removed.

The utility model discloses a corrosion-resistant venturi scrubber, which comprises a contraction part, a throat pipe part and a diffusion part, and adopts a sectional structural design, the contraction part consists of a first contraction part and a second contraction part, and the first contraction part and the second contraction part are connected through a double-seal connecting flange to form an inverted circular truncated cone-shaped barrel. The throat pipe part is cylindrical, and the diffusion part is a circular truncated cone-shaped cylinder, so that gas-liquid full contact in the gas flow acceleration and deceleration processes is ensured. All the parts are connected through the double-sealing flange, double sealing of the metal sealing ring and the flexible sealing washer is used, and stable sealing in the high-temperature and high-pressure environment is guaranteed. In addition, a corrosion-resistant lining is arranged on the inner wall of the washer to prolong the service life of equipment, and a damping ring is arranged to reduce fluid vibration. The sealing performance, the gas-liquid contact efficiency and the corrosion resistance of the equipment are improved through optimization design, and the high-temperature and high-pressure gas purification device has higher working efficiency and stability and longer service life and is suitable for the field of high-temperature and high-pressure corrosive gas purification.

The utility model discloses a gasification furnace deslagging waste gas treatment device, belongs to gasification furnace waste gas treatment equipment, and aims to solve the technical problem of how to realize waste gas recycling and avoid overproof alarm of an on-site GDS alarm instrument caused by slag fished out by an existing slag salvaging machine and dust-containing gas such as CO and H2S in hot gas at the top and the upper part of the slag salvaging machine. According to the technical scheme, the system comprises a submerged chain conveyor A, a submerged chain conveyor B, a draft fan A, a draft fan B, a main pipeline and a waste gas washing tower, the submerged chain conveyor A is communicated with the inlet end of the draft fan A through a draft fan inlet pipeline A, and a draft fan outlet pipeline A is arranged at the outlet end of the draft fan A; the slag salvaging machine B is communicated with the inlet end of the suction draught fan B through a suction draught fan inlet pipeline B. The outlet end of the suction draught fan B is provided with a suction draught fan outlet pipeline B. The suction draught fan outlet pipeline B and the suction draught fan outlet pipeline A are respectively communicated with one end of the main pipeline, and the other end of the main pipeline is provided with a pipeline type venturi scrubber.

The utility model relates to the technical field of tail gas treatment, and discloses a tail gas centralized treatment system which comprises a granulator, a primary dryer, a secondary dryer, a first screening machine, a primary cooler, a second screening machine, a secondary cooler, a coating machine, a finished product bin and an automatic bag stacking area which are connected in sequence, the granulator is communicated with a granulation tail gas treatment pipeline, and a venturi scrubber is arranged on the granulation tail gas treatment pipeline; the first-stage dryer and the second-stage dryer are communicated with drying tail gas treatment pipelines, cyclone dust collectors are arranged on the drying tail gas treatment pipelines, and tail gas treated by the cyclone dust collectors is communicated to the settling chamber; the venturi scrubber and the settling chamber are both connected to a scrubbing tower, and the scrubbing tower is connected with a pickling tank. The technical problems that in the existing ammonia-acid method compound fertilizer production process, alkaline substance pollution exists, tail gas multi-point emission exists, and the supervision difficulty is large are solved.

The application discloses a multi-phase state dangerous chemical product leakage recovery system, which comprises sequentially connected gas-liquid-solid separation module, gas-liquid separation module, gas absorption module and gas adsorption module; the gas-liquid-solid separation module comprises a gravity separator and a solid-liquid collection tank; the gas-liquid separation module comprises a gas-liquid separator and a liquid collection reaction tank; the gas absorption module comprises a Venturi scrubber and a sealed gas-liquid reaction tank; and the gas adsorption module comprises an adsorption chamber; the gas phase separated from the gravity separator and the liquid phase of the solid-liquid collection tank are transported to the gas-liquid separation module, liquid phase and part of the gas phase are absorbed in the gas-liquid separation module, the gas-liquid separator is sequentially connected to the gas absorption module and the gas adsorption module, and the gas phase is absorbed in the gas absorption module and the gas adsorption module. The application can simultaneously recover and efficiently dispose of dangerous chemical product leakage liquid, solid and gas.

The utility model relates to washing equipment in the field of chemical industry, in particular to a venturi scrubber which comprises a shell, the shell is composed of a metal outer shell and a non-metal inner shell with a venturi structure, the metal outer shell and the non-metal inner shell are in clearance fit, a cold fluid outlet is formed in the upper section of the metal outer shell, and a cold fluid outlet is formed in the lower section of the metal outer shell. A cold fluid inlet is formed in the lower section, and a flexible expansion section is arranged between the end outer flange of the metal outer shell and the end inner flange of the non-metal inner shell. The high-efficiency washing and absorbing device is simple in structure, safe, reliable, good in sealing performance, capable of adapting to high-corrosion, strong-permeation and negative-pressure working conditions and capable of efficiently washing and absorbing large-flow gas.

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 application provides a coal chemical wet acid gas washing system, comprising: an acid gas washing tower, the top of which is connected with a gas phase pipeline, the bottom of which is connected with a liquid outlet pipeline, and the lower side of which is connected with a desalted water supplement pipeline, and the acid gas washing tower is provided with a first spraying component; a venturi scrubber, the inlet section of which is connected with a wet acid gas pipeline so that the wet acid gas enters the venturi scrubber, the diffusion section of the venturi scrubber extends into the tower kettle of the acid gas washing tower, the venturi scrubber is provided with a second spraying component, and the wet acid gas washed by the venturi scrubber enters the acid gas washing tower; and a washing circulating pump, which is used for sending the tower kettle liquid in the acid gas washing tower to the first spraying component and the second spraying component as spraying liquid. The application can effectively remove the coal powder particles and ammonium carbonate in the wet acid gas, avoids the catalyst bed blockage caused by the direct entry of the wet acid gas into the sulfur recovery system, and can stably send the treated wet acid gas into the incinerator for incineration.

The invention discloses a Venturi-cyclone grading washing system and method for high-dust-content synthesis gas treatment, and relates to the technical field of industrial gas purification. The system comprises a first-stage treatment unit and a second-stage treatment unit which are connected in series, and venturi scrubbers and a plurality of straight-flow cyclone separators which are connected in parallel are adopted respectively; the first-stage unit is used for capturing particles with the particle size larger than or equal to 3 microns, and the pressure drop is 45-55 kPa; the second-stage unit is used for intensively trapping fine particles of 0.8-3 microns, and the pressure drop is 70-80 kPa. A spiral ring reverse blocking device is arranged on the inner wall of the cyclone separator and used for restraining liquid drop entrainment and airflow interference. A WC-Co hard alloy layer is overlaid on the surface of the venturi throat pipe, and a system body is made of an S31603 stainless steel material and is subjected to high-precision machining and detection treatment. According to the method, washing and separation are carried out in stages according to the particle size, efficient removal of fine particles is achieved, system operation is stable, energy consumption is low, and the method is suitable for purification requirements of high-dust complex gas sources of coal chemical industry, coking and the like. Tests show that the dust removal efficiency of the system is greater than or equal to 99.5%, the continuous operation period is greater than or equal to 180 days, and the energy consumption is less than or equal to 100 kW.h / 1000 m < 3 >.

A method / system for fluid coking, which can be modified from the Flexicoking TM process / system, includes introducing a heavy petroleum feed into a fluidized bed in a reactor and converting the feed via a coking operation within the fluidized bed, producing an overhead stream with entrained coke fines from the reactor overhead and solid coke from the base of the reactor. The method includes injecting the solid coke into a fluidized bed in a burner and combusting the solid coke in the burner, producing hot coke particles. The method includes recirculating a portion of the hot coke particles to the fluidized bed in the reactor, discharging the remainder of the hot coke particles from the base of the burner and a flue gas from the burner overhead, and passing the flue gas and a caustic dispersion to a venturi scrubber to obtain a scrubbed flue gas. More petroleum coke can be produced from the method / system. Methods for modifying a fluid coking system are also claimed.

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.

The invention discloses a waste liquid treatment process, and belongs to the technical field of waste liquid treatment, and the waste liquid treatment process comprises the following steps: S1, lifting 2-chloro-5-chloromethylpyridine production waste liquid mother liquor into an immersed incinerator, and carrying out high-temperature incineration to generate high-temperature tail gas and acidic mother liquor; s2, washing the high-temperature tail gas through a Venturi washing tower, washing through a secondary alkaline washing tower and dedusting through a wet electric dust collector, and discharging the high-temperature tail gas up to the standard through a chimney; s3, cooling the acidic mother liquor through a cooling tank, carrying out temperature-controlled distillation in a first-stage distiller, cooling, and recovering a hydrogen chloride aqueous solution and a phosphoric acid aqueous solution; according to the method, secondary pollution and solid waste can be avoided, the hydrogen chloride aqueous solution and the phosphoric acid aqueous solution can be recycled, the modern environmental protection concept is met, energy conservation and environmental protection are achieved, the problems of blocking and corrosion caused by incineration can be avoided, and the treatment cost is low.

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.