38 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 relates to the technical field of acidolysis tail gas treatment, in particular to an acidolysis tail gas treatment device which comprises a venturi scrubber, a gas-liquid separator, a filler scrubbing tower, an induced draft fan and an exhaust funnel, and a body consists of an anti-blocking nozzle, a contraction section, a throat pipe and a diffusion section; the gas-liquid separator is composed of a body, a demister, a liquid level detection control instrument and the like. The filler washing tower is composed of a body, filler, a spraying distributor, a demister, a washing tower circulating pump, a washing tower drain pipe, a liquid level detection control instrument and the like. Process water provided by the utility model is only supplemented to the sulfuric acid mist filler washing tower, the washing tower discharges or overflows to the venturi scrubber, and the venturi scrubber is not supplemented with the process water and is only suitable for circulating liquid of the sulfuric acid mist filler washing tower, so that the sulfuric acid concentration and the dust concentration of the circulating liquid of the sulfuric acid mist filler washing tower can be reduced to the maximum extent; the highest absorption efficiency is guaranteed, the possibility of scaling and blocking is avoided, and meanwhile the overall water discharge amount is reduced.

A method for producing hydrogen from biomass. For this purpose, the biomass is fed into a fluidized bed reactor, in which the biomass is converted into a flow of products. Solid particles are separated in at least one cyclone. Further solid particles and hydrocarbons are separated in a venturi scrubber. A flow of products is generated in the biodiesel scrubbing, which is fed into a water scrubbing and then to a cooling unit for separation. A flow of products is generated in the high-purification of gas, which is fed into a water gas conversion and CO2 removal. A flow of products is generated in the gas separation.

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 biomass fluidized bed gasification system suitable for a downstream conversion device. The biomass fluidized bed gasification system comprises a fluidized bed gasification furnace, a cyclone separator, an oxidation cracking furnace, a venturi scrubber, a cyclone hydraulic separator and a water scrubber, the fluidized bed gasification furnace, the cyclone separator, the oxidation cracking furnace, the venturi scrubber, the hydrocyclone and the water scrubber are sequentially connected along the flow direction of synthesis gas to form a synthesis gas flow route; the system disclosed by the utility model adopts a chilling process, the water-vapor ratio can be about 0.8, a downstream conversion device does not need to be supplemented with water vapor, the consumption and the investment are saved, and the fluidized bed gasification furnace has a high-temperature oxidation area, so that tar can be fully cracked, and the energy consumption is reduced. The tar content at the outlet of the fluidized bed gasifier is effectively reduced or no tar exists at the outlet of the fluidized bed gasifier.

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 present application relates to the technical field of industrial waste gas treatment devices, and provides a venturi scrubber, which includes a support seat, a treatment pipe and a spray assembly, wherein the treatment pipe is arranged in a vertical direction, the treatment pipe is hollow, and the two ends are respectively an air inlet and an air outlet, and the air inlet is located above the air outlet; the spray assembly is connected to the treatment pipe, and the spray assembly is used to spray the inside of the treatment pipe; the venturi tower body, the venturi tower body is located on one side of the treatment pipe, and the air outlet is connected to the venturi tower body; the venturi tower body is provided with a packing layer, the packing layer is placed on the top of the venturi tower, and is used to remove water from the waste gas after spraying, and the venturi tower body is opened at one end away from the support seat, and an exhaust port is formed. The present application has the effect of reducing the possibility of substances in the waste gas sticking to the packing layer and causing blockage.

The invention discloses an internal part replacement device and a venturi scrubber, and relates to the technical field of venturi scrubbers, the internal part replacement device comprises an inner sleeve, a straight cylinder, a throat pipe connected with the straight cylinder, a mounting plate connected with the throat pipe, and a clamping part arranged on the outer wall of the straight cylinder; the water spraying pipe comprises a pipe body and a fixing plate arranged on the outer wall of the pipe body; by arranging the inner sleeve, the inner sleeve is installed in the air inlet pipe through the installation plate and the multiple supporting blocks, by arranging the detachable water spraying pipe, when internal parts are damaged, the whole equipment does not need to be disassembled, the downtime of the equipment is shortened, the overall fault of the equipment caused by damage of the internal parts is avoided, and by optimizing the structural design, the production efficiency is improved. Sharp corners with concentrated stress are removed and replaced with the bent pipe structure, fatigue damage and corrosion aggravation caused by concentrated stress are avoided, the flow characteristic of fluid is improved, the dust removal efficiency and corrosion resistance of equipment are improved, meanwhile, the maintenance and replacement process is simplified, and the service life of the equipment is prolonged.

The utility model discloses a long throat pipe venturi scrubber with a flow regulation structure, which relates to the technical field of scrubbers, and comprises an inlet section, a speed reduction section, a throat pipe section, a diffusion section and a washing pipe, the speed reduction section is arranged at one end of the inlet section; the throat pipe section is arranged at the end, away from the inlet section, of the deceleration section. The diffusion section is arranged at the end, away from the speed reduction section, of the throat pipe section. The washing pipe is connected into the inlet section in a sliding manner; an air inlet pipe is arranged at the top of the inlet section, a concave frame is arranged on one side of the air inlet pipe, a filter plate is arranged in the air inlet pipe, sliding grooves are formed in the air inlet pipe and the concave frame, concave plates are slidably connected into the sliding grooves, the concave positions of the concave plates are fixedly connected with the filter plate, and limiting strips are arranged at the other ends of the concave plates. And one side of the inlet section is provided with an adjusting assembly for adjusting the gas flow. Dust-containing gas is filtered through the filter plate, and impurities in the dust-containing gas are prevented from entering the washer.

The utility model relates to the technical field of tail gas treatment devices, in particular to an ammonium nitrate solution evaporation tail gas treatment device which comprises a venturi scrubber, a tail gas cooler connected with a gas outlet of the venturi scrubber, a dust remover connected with the tail gas cooler and an induced draft fan connected with the dust remover. The venturi scrubber is connected with a tail gas pipeline and a detergent pipeline; the venturi scrubber comprises a venturi tube, a dehydrator connected with the venturi tube and a sprayer arranged in the venturi tube, the venturi tube is connected with a tail gas pipeline, and the sprayer is connected with a detergent pipeline; according to the utility model, the venturi scrubber is arranged, so that large-particle impurities in tail gas can be removed; by arranging the tail gas cooler, tail gas can be cooled; and by arranging the dust remover, fine particles in the tail gas can be taken out, so that the tail gas emission reaches the standard.

The invention discloses a radioactive waste treatment system and method, and the system comprises the following modules: a reforming reaction module which is used for enabling radioactive waste to be subjected to a reforming reaction and forming first solid waste and synthesis gas; an oxidation treatment module; the oxidation treatment module comprises an oxidation furnace, a venturi scrubber and a denitration scrubber which are connected in sequence; the oxidation furnace comprises an upper oxidation chamber and a lower alkali washing quenching chamber which are communicated with each other; the oxidizing chamber is used for oxidizing the synthesis gas to form flue gas and enabling the flue gas to enter the alkali washing quenching chamber for cooling and washing; and the venturi scrubber and the denitration scrubber are respectively used for carrying out desulfurization treatment and denitration treatment on the flue gas to form tail gas. According to the treatment method based on the radioactive waste treatment system, the volume reduction ratio can be remarkably increased, and tail gas emission can meet the standard.

The invention provides a supersonic venturi scrubber for a containment filtration and discharge system, and belongs to the technical field of venturi scrubbers. The problems that when an existing venturi scrubber is used for a containment filtering and discharging system, the atomization effect is poor, and the filtering efficiency is affected are solved. The device comprises an inlet straight pipe section, a subsonic velocity gas contraction section, a supersonic velocity gas expansion section, a throat pipe, a subsonic velocity gas expansion section and an outlet straight pipe section which are sequentially and coaxially connected from bottom to top, the inlet straight pipe section is connected with an off-axis of an incoming flow gas nozzle to generate rotary upflow, a plurality of liquid suction holes are formed in the throat pipe, and the subsonic velocity gas expansion section is connected with the outlet straight pipe section. A plurality of exhaust holes are formed in the outlet straight pipe section, the inlet straight pipe section, the throat pipe and the outlet straight pipe section are all of straight tubular structures, and the axial included angle of the supersonic gas expansion section is smaller than that of the subsonic gas contraction section. The device is mainly used for filtering and discharging of the containment.

The utility model discloses a gasification ash water purity improving device with a filtering function, which relates to the technical field of gasification ash water chemical industry and comprises a gasification furnace, the output end of the gasification furnace is communicated with one end of a synthesis ammonia pipeline, and a synthesis gas washing tower for manufacturing synthesis gas and ash water is arranged on the right side of the gasification furnace. The left side of the lower end of the synthesis gas washing tower is communicated with a high-pressure flash tank used for reducing the temperature of grey water and absorbing acid gas through a first grey water pipeline, the right side of the lower end of the synthesis gas washing tower is communicated with one end of a second grey water pipeline, and the second grey water pipeline is provided with a chilling water pump for providing power for grey water transportation and a chilling water filter for filtering grey water. The cyclone separator is arranged between the venturi scrubber and the synthesis gas scrubbing tower, so that water, synthesis gas dust, solid particles and particle coal slime in the venturi scrubber can be removed in the cyclone separator through centrifugal force, scrubbing separation is provided for the synthesis gas cyclone separator, and the purity of synthesis gas and grey water in the scrubbing tower is improved.

The invention discloses a process for synthesizing sustainable aviation fuel through pure biomass low-pressure high-temperature steam gasification. The process comprises the following steps: S1, raw material pretreatment; s2, low-pressure high-temperature steam gasification; superheated steam is introduced into the gasification furnace, pyrolysis, oxidation and reduction reactions are carried out under the anoxic condition, and synthesis gas is generated; s3, washing and purifying the synthesis gas; the synthesis gas sequentially passes through a cyclone separator, a venturi scrubber and an activated carbon adsorption tower, so that the gas cleanliness is ensured; s4, pressurizing, desulfurizing and decarburizing; the synthesis gas is pressurized for the first time through a compressor and enters an MDEA solution tower to remove HS and COs; s5, synthesizing and refining the SAF; the pressurized synthesis gas enters a Fischer-Tropsch synthesis module to generate straight-chain hydrocarbons; then hydroisomerization and rectification separation are carried out to obtain SAF; and S6, recycling by-products. According to the process, through combination of low-pressure high-temperature steam gasification and modular design, the purpose of efficiently converting biomass into SAF is achieved, and the process has the advantages of being simple, high in environmental protection property, excellent in economical efficiency and the like.

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 provides a sulfate-containing waste liquid treatment system for acrylonitrile and a combination device thereof, which comprises at least two sets of waste liquid treatment units and a set of flue gas treatment unit, sulfate waste liquid is divided into two strands to enter the two sets of waste liquid treatment units for combustion, waste heat utilization and quenching purification; the discharged sulfur-containing flue gas is collected and enters a set of flue gas treatment unit, the sulfur-containing flue gas subjected to deep cooling, demisting and drying can be directly used for producing high-purity sulfuric acid, and a two-end and one-tail mode is adopted, so that the operation flexibility of the system is improved, and the treatment pressure is reduced. In the waste liquid treatment unit, a high-temperature reaction device adopts segmented air distribution, so that sufficient combustion of waste liquid is ensured, and SO2 loss is reduced; a special temperature field and structural design in the waste heat boiler can prevent the heat exchange device from scaling and blocking; a venturi scrubber is adopted in the quenching purification device to quench the flue gas, and a protective liquid film is formed on the contact interface of the high-temperature flue gas and a liquid phase, so that the temperature of equipment is effectively reduced, and corrosion of the high-temperature flue gas is prevented.

The utility model provides a silane gas washing tower, and aims to solve the technical problem that the wet washing load is large due to the fact that dry dust falling is not thorough in the existing dry and wet combined dust removal. The silane gas washing tower is provided with three stages of washing areas. The first-stage washing area is arranged between the second-stage washing area and the third-stage washing area, and all the stages of washing areas are mutually communicated. And a liquid outlet pipeline is arranged at the bottom end of the tower body. And the first-stage washing area is provided with a venturi scrubber. And silane gas is introduced into the top end of the venturi scrubber. And the second-stage washing area is provided with a hollow cylinder cover. An annular leaching pipe is arranged at the top end of the barrel cover. And the third-stage washing area is provided with a leaching pipe. Wherein the venturi scrubber, the annular leaching pipe and the leaching pipe are all connected with the leaching feeding pipeline. And the leaching feeding pipeline is arranged on the tower body. Silane gas is firstly introduced into the venturi scrubber to be washed and then flows to the second-stage washing area, and a large amount of silicon powder contained in the silane gas is discharged out of the tower body along with a leacheate water bath under the leaching of the annular leaching pipe and the flow guide of the barrel cover.

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 utility model discloses a methanol crude synthesis gas washing purification system which comprises a mounting plate, the upper surface of the mounting plate is fixedly connected with a group of mounting columns, the top ends of the group of mounting columns are jointly and fixedly connected with a gas-liquid separation tank, and the outer surface of the gas-liquid separation tank is fixedly communicated with a gasification furnace. And the bottom end of the gasification furnace is fixedly communicated with a conveying pipe. According to the device, the gas-liquid separation tank, the gasification furnace, the conveying pipe, the first electromagnetic control valve and the chilling chamber are arranged, gas and liquid can be conveniently separated, gas can be conveniently washed in cooperation with the liquid discharging pipe, the second electromagnetic control valve, the first-stage venturi scrubber, the second-stage venturi scrubber and the washing tower, and the flash evaporation tank and the water diversion pipe are combined, so that the gas-liquid separation efficiency is improved. And the Venturi gas-liquid separation tank and the washing tower can be prevented from being blocked by the synthesis gas in the washing process by utilizing the adjustment of the technology, so that the long-period stable operation of the device is ensured.

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 invention relates to the technical field of waste gas treatment, in particular to a comprehensive treatment system and treatment process for coking chemical industrial gas purification tail gas. Sequentially introducing into a venturi washing tower, a water washing tower, a demisting tower and a heat accumulating type incineration oxidation furnace; wherein washing oil is distributed in the Venturi washing tower, sodium hydroxide is doped in the washing oil, at least part of to-be-purified components in the tail gas interact with the washing oil and the sodium hydroxide in the Venturi washing tower, and the Venturi washing tower is used for removing tar, aromatic hydrocarbon compounds and acidic impurities in the tail gas. Based on the scheme, waste gas can be effectively purified.

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 provides a heat recovery gasification system, which comprises a gasification furnace comprising a gasification section, a waste boiler section and a chilling section which are sequentially distributed from top to bottom; an outlet of the gasification section is communicated with an inlet of the waste boiler section, and an outlet of the waste boiler section is communicated with an inlet of the chilling section; crude synthesis gas generated by oxidation reaction in the gasification section is subjected to sensible heat recovery through the waste boiler section and enters the chilling section; the synthesis gas washing tower is communicated with the chilling section; an inlet of the synthesis gas separation tank is communicated with an outlet of the chilling section; a venturi scrubber; the synthesis gas separation tank is communicated with the synthesis gas scrubbing tower through the venturi scrubber; a third-stage flash evaporation system; and the bottom of the synthesis gas separation tank and the bottom of the synthesis gas washing tower are respectively provided with a liquid discharge outlet, and are respectively communicated with the three-stage flash evaporation system through the liquid discharge outlets.

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 >.

The invention provides a form-adjustable venturi scrubber, and relates to the technical field of venturi scrubbing equipment, the form-adjustable venturi scrubber comprises a venturi core, the front side of the venturi core is fixedly provided with a contracted pipe, and the rear side of the venturi core is fixedly provided with an expanded pipe; a positioning sliding strip is fixedly arranged on the lower portion of the interior of the Venturi core, and an atomizing nozzle is fixedly embedded in the middle of the Venturi core. A core module is arranged in the Venturi core in a sliding mode, and a round through hole is formed in the bottom of the core module. The rear end of the expanding pipe is connected with a separating bin; the device is flexible to operate and convenient to maintain, the core modules are rapidly switched through the self-locking clamping blocks, different types such as solid holes, taper holes or round holes can be selected according to needs to adjust air pressure, the amplitude of the Venturi effect can be controlled, and the device adapts to different working conditions; the arrangement of each valve facilitates the control of the water flow path, the negative pressure water replenishing design solves the problem of no water in the communicating vessel, the maintenance operation is simple and efficient, and the problem that the existing washer is inconvenient to accurately control is solved.

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 relates to a venturi scrubber. The venturi scrubber comprises a scrubber cylinder and a venturi scrubbing tube in the cylinder, one end of the washer cylinder is an air inlet, and the other end is an outlet; the venturi washing pipe is arranged at the end, close to the air inlet, in the washer cylinder, the outer wall of an inlet of the venturi washing pipe is connected with a plurality of supporting plates, the other sides of the supporting plates are connected with the inner wall of the washer cylinder, the supporting plates are separated from one another, and the outer wall of an outlet of the venturi washing pipe is connected with the inner wall of the washer cylinder in a sealed mode. A space between the outer wall of the venturi washing pipe and the inner wall of the washer cylinder is an overflow cavity, and an inlet of the venturi washing pipe forms an overflow weir; a water inlet is formed in the washer cylinder between the inlet and the outlet of the Venturi washing pipe and is communicated with the overflow cavity. The venturi scrubber provided by the invention has the advantages of improving the washing effect, simplifying the preparation process, prolonging the service life of equipment, reducing the production and maintenance cost and the like.