184results about "Auxillary pretreatment" patented technology

The invention belongs to the technical field of formaldehyde waste gas treatment for plywood gluing, and relates to a circulating formaldehyde adsorption regeneration system for plywood gluing. The electrostatic-ultrasonic coupling demister and a humidity self-adaptive purification adsorption path are introduced, so that the problem that the efficiency of a traditional adsorption process is reduced under the conditions of paint mist particle interference and humidity fluctuation is solved, and the adaptability to complex working conditions is improved; an adsorbent performance attenuation kinetic model and a multi-source data intelligent control strategy are established, accurate monitoring of adsorption saturation and dynamic adjustment of an adsorption penetration threshold value and regeneration process parameters are achieved, and the problem that the treatment effect is reduced due to adsorbent performance attenuation is solved; through the design of the grading regeneration technology and the tail gas catalytic oxidation device, the energy utilization efficiency in the adsorbent regeneration process is optimized, high-concentration formaldehyde mixed gas is thoroughly decomposed into harmless substances, and the risk of secondary pollution is avoided.

The invention belongs to the technical field of wet dust removal devices, and particularly relates to a turbulence-enhanced efficient energy-saving wet dust removal device, and a Venturi condensation unit comprises a shrinkage pipe, an adjustable throat pipe and a diffusion pipe which are connected in sequence; the turbulent flow mixing and strengthening unit is connected between an outlet of the diffusion pipe and an inlet of the fiber grid condensation and filtration unit, and a static turbulent flow generator is arranged in the turbulent flow mixing and strengthening unit and used for enabling gas-liquid-solid multiphase flow from the Venturi condensation unit to generate rotation and turbulent flow; the fiber grid coagulation filtering unit comprises a shell and at least one layer of fiber grid plate arranged in the shell; the washing liquid circulation assembly comprises a liquid storage tank, a water pump and a first connecting pipeline and is used for conveying washing liquid in the liquid storage tank to the atomizing nozzles and the liquid distribution device. The system has the advantages of low-resistance operation, self-cleaning capability, intelligent adjustment and high system integration degree.

Compositions and methods for removing hydrogen sulfide, gas phase thiol, carbonyl sulfide, and combinations thereof from a gas / vapor stream are provided by utilizing a renewable formulation medium. The composition may include an activated carbon media (BCT-AC media) treated with a binding complex. The compositions and methods offer advantages over currently known technologies by reducing the number of process steps required and thus reduced capital and operating costs, and eliminating aqueous phase processes that are expensive to run and produce undesired waste by-products. In addition, the provided compositions and methods remove hydrogen sulfide as recoverable elemental sulfur, and are ideally suited for use in gas / vapor reactions in which carbon dioxide may be present, as it has no process or economic impact on the composition or process.

The invention relates to a membrane type carbon dioxide separation method. The invention discloses a membrane type method for separating CO2 from flue gas. An exemplary method includes passing a fluid stream including the flue gas through a CO2 and H2O permeable membrane, removing a treated gas having less CO2 than the flue gas from a feed side of the membrane, and removing a permeate including CO2 and H2O from a permeate side of the membrane. Suitably, this permeate is removed at a vacuum pressure of sub-atmospheric pressure. The permeate is then cooled to remove at least some H2O from the permeate and form a smaller volume of H2O depleted, CO2 enriched permeate.

An electrochemically-based carbon-dioxide gas separation system includes an energy tower including an internal vertical duct that has an upper inlet open to outside air at an upper end of the energy tower and one or more air outlets at a lower portion of the energy tower. A spray system is mounted adjacent the upper inlet for spraying water droplets into air entering the internal vertical duct, causing the air, and water droplets mixed with the air, to become cooler and denser than the outside air to create a down draft of a humidified air stream within the duct. The humidified air stream flows from the one or more air outlets through one or more electrochemically-based carbon-dioxide gas separation units.

The invention relates to the field of industrial waste gas treatment, and discloses a technology for removing NOx and SOs in industrial flue gas through an ultrasonic atomization wet method. The technology comprises the steps that S1, the industrial flue gas is cooled and dedusted; s2, performing oxidation washing on NO by using a first washing solution and a second washing solution respectively; s3, absorbing NOx and SOs generated by oxidation of the industrial flue gas by using an absorption liquid subjected to ultrasonic atomization; s4, carrying out demisting treatment on the industrial flue gas; a first washing solution in the step S2 is a 0.5-1.5 wt% potassium persulfate aqueous solution, and a second washing solution is composed of 1-2wt% of ferrous sulfate, 0.5-1wt% of EDTA and the balance of water; the absorption liquid in the step S3 is prepared from basic hydroxide, carbonate, an interface modifier and water. According to the ultrasonic atomization wet process, the solid precipitation amount of the absorption liquid is small, the NOx and SOabsorptivity is high, and equipment cannot be corroded after long-term use.

Device for separating pollutants and / or particles from a process exhaust gas stream, in which a process raw gas flows by means of a compressor towards at least one filter element and through the at least one filter element; wherein the at least one filter element is arranged in a chamber and a metering device for a powdered additive is arranged upstream of the at least one filter element in the flow direction of the process raw gas, with which the additive can be supplied to the process raw gas. characterized in that wherein a storage container (A) for the powdered additive is arranged on the dosing device such that the powdered additive is dispensed onto a surface of at least one sieve (D) and that at least one sieve (D) can be set into vibration by means of a device (B) and / or vibrations can be coupled into the sieve (D) that act on the sieve (D); wherein characterized by the fact that The mesh size of the at least one sieve (D) and the particle size of the powdered additive are selected such that particles of the powdered additive only pass through the sieve (D) if the at least one sieve (D) has been set into vibration or the sieve (D) is vibrating and particles that have passed through the at least one sieve (D) can be fed into the process raw gas stream and are deposited as part of a filter cake on the at least one filter element, wherein two sieves (D) are arranged decoupled from each other so that independent, unhindered vibration of one of the two sieves (D) or both sieves (D) is possible.

This invention discloses a wet multi-stage cyclone dust collector, comprising a primary volute and a secondary volute connected vertically, with a partition between them. The primary volute's sidewall is connected to an inlet chamber, and its bottom is connected to a dust hopper. A water pipe and a fish-scale atomizing plate are installed in the inlet chamber. A primary separation cylinder is vertically installed inside the primary volute, passing through the partition and connecting to the secondary volute. The dust-laden airflow enters the secondary volute through the primary separation cylinder, achieving the first separation of water vapor and dust particles from the airflow. A secondary separation cylinder is horizontally installed inside the secondary volute, with one end positioned at the tail of the secondary volute and the other end connected to a centrifugal fan. Under centrifugal force, water vapor and dust particles are separated from the airflow a second time, and the final airflow is discharged from the centrifugal fan in compliance with emission standards. This invention realizes the application of wet methods in cyclone dust collectors, improving the dust removal efficiency of cyclone dust collectors, enhancing the ability to treat dust particles with a diameter below 10μm, while solving the problem of large size in multi-stage cyclone dust collectors, increasing equipment adaptability, and extending service life.

In a process of drying and purifying a fluid (F) containing CO2 and water, the fluid is cooled against water (1), the cooling water warming up, condensed water (3,BD) is separated to obtain a partially dried fluid (Fd), the partially dried fluid is dried to obtain a dried fluid (Fdd), the dried fluid is heated against water which cools down to obtain water (5) and a dried fluid (Fddd) at a seventh temperature T7, water is cooled by heat exchange with a cooling source (F1) generating water (1) and the generated water is used to cool the fluid.

A gas conditioning system removes contaminants including nitrogen oxides and sulfur oxides from flue gas of a marine vessel, and includes an oxidizer unit and a direct contact cooler. The oxidizer unit receives an exhaust flue gas from a marine engine through a fluid inlet at a temperature between 150 degrees Celsius and 550 degrees Celsius, and converts at least a portion of the nitrogen oxides in the flue gas into nitrogen gas, nitrogen dioxide, or both. The direct contact cooler is fluidly connected to the oxidizer unit, and includes a housing defining a cooling chamber. The direct contact cooler directs the flue gas into contact with seawater residing in the cooling chamber and cools the flue gas to a temperature less than or equal to 60 degrees Celsius. The seawater removes some or all nitrogen dioxide and sulfur dioxide from the flue gas in the cooling chamber.

The invention relates to a waste lead storage battery smelting flue gas treatment system and method. The waste lead storage battery smelting flue gas treatment system comprises a separation mechanism, a quality separation mechanism and an adjusting mechanism which are sequentially arranged in the flowing direction of smelting flue gas and sequentially communicate with one another, and the separation mechanism is used for rapidly separating large-particle impurities in the smelting flue gas; the quality separating mechanism is used for separating dust and acid mist impurities in the smelting flue gas, and the adjusting mechanism is used for adjusting the SOconcentration in the smelting flue gas to tend to be stable and then leading out the smelting flue gas; the treatment method for the waste lead storage battery smelting flue gas is based on the treatment system for the waste lead storage battery smelting flue gas and comprises the following steps of a primary screening procedure, an impurity removing procedure, an adjusting procedure and a leading-out procedure. The problems that existing smelting flue gas treatment is unreasonable, low in efficiency, incomplete in impurity removal and large in concentration fluctuation are solved.

To appropriately treat drain.SOLUTION: A CO2 recovery system has: a combustion facility; a dust collector into which an exhaust gas containing CO2 discharged from the combustion facility is introduced, and that removes a solid component from the exhaust gas; an exhaust gas cooling device into which the exhaust gas is introduced, and that brings the exhaust gas into contact with cooling water and thereby cools the exhaust gas; a CO2 absorption tower into which the exhaust gas cooled by the exhaust gas cooling device is introduced, and that brings the exhaust gas into contact with a CO2 absorption liquid, and removes the CO2 from the exhaust gas; an exhaust gas cooling device; and a cooling water introduction line which is connected to a supply part that is a part on an upstream side of the dust collector in a flow of the exhaust gas, and introduces at least a part of the cooling water in the exhaust gas cooling device into the supply part.SELECTED DRAWING: Figure 3

The utility model belongs to the technical field of environmental protection equipment, and relates to an asphalt fume waste gas treatment system. The treatment system comprises a circulating dust removal reaction device for filtering asphalt smoke and particulate pollutants and a heat storage combustion device for combusting gaseous pollutants, the circulating dust removal reaction device comprises a venturi reactor, the output end of the venturi reactor is connected to the input end of an ascending pipeline reactor, the output end of the ascending pipeline reactor is connected to the input end of a filter, and the output end of the filter is connected to a heat storage combustion device; the heat storage combustion device comprises a combustion chamber and a plurality of heat storage chambers, and gaseous pollutants enter the combustion chamber to be combusted after being preheated through the heat storage chambers. According to the system, a dry-process circulating dust removal and heat storage combustion process is adopted, so that the problem of sewage generated by conventional wet-process asphalt fume treatment is effectively solved, and the asphalt fume can be effectively removed.

An improved multiport rotary valve assembly is disclosed for fluid control systems, particularly in direct lithium and mineral extraction applications. The assembly features a valve body comprising a housing ring, upper and lower closure discs, and a process disc, with advanced polymeric seals, including radial and lip seals, ensuring robust sealing engagement. A mechanically biased tensioning assembly, incorporating tension springs and load cells, maintains consistent sealing compression, mitigating issues of under-engagement and over-engagement caused by thermal and pressure variations. The valve assembly reduces leakage, cross-contamination, and seal degradation, enhancing extraction rates, operational efficiency, and seal longevity. Real-time monitoring and feedback mechanisms enable precise adjustments during startup, operation, and cooldown, minimizing manual intervention and downtime. This design addresses stringent purity requirements in direct lithium extraction while supporting high throughput and reliable performance under demanding conditions.

The utility model discloses a large cyclone gas separation device for spraying, which belongs to the technical field of spraying gas separation and comprises a separator, the separator comprises a cylinder and a first gas inlet, the first gas inlet is arranged on the outer side wall of the circumference of the cylinder and communicated with an inner cavity of the cylinder, and a second gas inlet is arranged on the outer side wall of the cylinder and communicated with the inner cavity of the cylinder. Impurity-containing gas enters the inner cavity of the cylinder through the first gas inlet for gas-solid separation; the spiral mechanism is arranged in an inner cavity of the first gas inlet and used for spirally guiding gas flow so that gas can rotate, and according to the large cyclone gas separation device for spraying, the spiral mechanism is used for spirally guiding impurity-containing gas at the gas inlet so that the gas can rotate; the rotating air generates large centrifugal force, the turbulence intensity of the air flow is improved, the centrifugal force and the turbulence intensity generated by the rotating air flow act together, particles are separated out more easily, and the separation efficiency of the cyclone separator is improved.

An acidic gas recovery system includes a cooling tower into which a target gas of treatment containing an acidic gas is introduced to cool the target gas of treatment; an inlet adsorption device that is configured to bring the target gas of treatment cooled in the cooling tower into contact with activated carbon to remove hydrocarbons remaining in the target gas of treatment; an absorption tower that is configured to discharge the absorbent liquid which has absorbed the acidic gas and an absorption tower discharge gas containing the target gas of treatment from which the acidic gas is removed; and a regeneration tower that is configured to discharge the absorbent liquid from which the acidic gas is released and a regeneration tower discharge gas containing the acidic gas.

Method for cleaning a gas jet projected by a rocket engine. The invention relates to a method for cleaning a gas jet (J) projected by a rocket engine, comprising at least the passage of the gas jet successively through treatment zones (10; 20) positioned in series in which water is projected onto the gas jet with calibrated nozzle (B1; B2) supply flow rates and water ejection velocity. Figure for the abstract: Fig. 1.

The present invention relates to a method for producing a deoxidized fluid stream, comprising a direct-contact cooler and one or more heat pumps. The present invention further relates to an apparatus for deoxidizing a fluid stream, comprising a direct-contact cooler and one or more heat pumps.

Systems and methods for separation of a component from a mixed gas stream by a combination of direct contact heat and material exchange in an indirect contact heat exchanger are disclosed. A contact liquid stream wets an interior surface of the process channel of the indirect contact heat exchanger and the mixed gas stream passes through the process channel, contacting the contact liquid stream for heat and mass exchange. A refrigerant in the refrigerant channel of the indirect contact heat exchanger is used for heat exchange with the contact liquid.

The invention discloses melamine tail gas treatment equipment, and belongs to the technical field of melamine tail gas treatment, the melamine tail gas treatment equipment comprises a base plate, the top end of the base plate is fixedly connected with an absorption tower and a carbonization tower, the outer side of the absorption tower is fixedly connected with a transmission pump A, the output end of the transmission pump A is fixedly connected with an outer guide pipe A, and the end, away from the transmission pump A, of the outer guide pipe A is communicated with the absorption tower; the output end of the transmission pump A is fixedly connected with a transmission pipe A, and the end, away from the transmission pump A, of the transmission pipe A communicates with the liquid inlet end of the carbonization tower; and the cooling assembly is assembled at the top end of the substrate. The melamine tail gas treatment equipment provided by the invention can solve the problem of environment-friendly treatment of the melamine tail gas, realizes cyclic utilization of resources, effectively controls the treatment cost of the melamine tail gas, realizes resource recovery while solving the problem of environment-friendly treatment of the melamine tail gas, and has the advantages of environmental protection and environmental protection. And the treatment cost of the melamine tail gas is relatively high.

In a method for drying and purifying a fluid (F) containing CO2 and water, fluid is cooled against water (1), the cooling water heating up, condensed water (3, BD) is separated to obtain a partially dried fluid (Fd), partially dried fluid is dried to obtain a dried fluid (Fdd), dried fluid is heated up against water which cools to obtain water (5) and a dried fluid (Fddd) at a seventh temperature T7, water is cooled by heat exchange with a cold-energy source (F1) generating water (1), and generated water is used to cool the fluid.

This acidic gas recovery system comprises: a cooling tower into which a gas to be treated containing an acidic gas is introduced and which cools the gas to be treated; an inlet adsorption device that brings the gas to be treated cooled by the cooling tower into contact with an activated carbon to remove hydrocarbons remaining in the gas to be treated; an absorption tower that discharges an absorption liquid that has absorbed the acidic gas and an absorption tower discharge gas containing the gas to be treated from which the acidic gas has been removed; and a regeneration tower that discharges the absorption liquid from which the acidic gas has dissipated and a regeneration tower discharge gas containing the acidic gas.

This invention relates to the field of waste gas treatment technology, specifically to a system and method for the synergistic treatment of waste gas and wastewater based on nuclear photonic radiation. The system includes a reaction chamber, an inlet duct, an outlet duct, a nuclear photonic radiation generator, a high-voltage electrode assembly, and a vortex generator. By adjusting the rotation path length of the waste gas entering the treatment chamber using the vortex generator, precise control of the waste gas residence time is achieved. Combined with the synergistic effect of nuclear photonic radiation and a high-voltage electric field, this invention solves the problems of low waste gas treatment efficiency, uncontrollable residence time, and difficulty in adapting to the treatment needs of different waste gas components in existing technologies.

The invention discloses a waste gas treatment device for aluminum bar production, and relates to the technical field of waste gas treatment.The waste gas treatment device comprises a treatment box, a gas inlet valve for gas inlet is fixedly installed on the front side of the treatment box, and an exhaust pipe for exhaust is fixedly installed on the rear side of the treatment box; through mutual cooperation of a heat exchanger, a three-way pipe, a temperature sensor, an electric push rod, a supporting base, a first connecting rod, a second connecting rod, a baffle, a partition plate, a supporting box and an atomizing nozzle, the temperature of waste gas can be lower than 25 DEG C by controlling the contact time of the waste gas and the heat exchanger, and particles in the waste gas are expanded through mixing of water mist and the waste gas; through mutual cooperation of a filter screen, a driving motor, a supporting box, a first mounting rod, a supporting disc, a transverse plate, a second mounting rod and a third mounting rod, the filter screen can be prevented from being blocked, meanwhile, dew is prevented from influencing filtering of particles in waste gas by the filter screen, and the effect of filtering the waste gas in the aluminum bar production process is achieved.

A system for processing biogas, the system comprising: a container, a pressure swing adsorption (PSA) unit housed in the container, the PSA unit having: a plurality of beds containing adsorbent material, the adsorbent material configured to selectively adsorb gas species from the biogas to process the biogas, a rotary valve module for distributing flow of 5 the biogas within the PSA unit, an inlet for supplying the biogas to the plurality of beds from outside of the container, and an outlet for transporting the processed biogas away from the PSA unit.

The invention relates to the technical field of oil-containing solid-liquid separation, and discloses a super-wetting modified coalescence material and a solid-liquid separation method for coupling multistage cyclone-polymerization filtration extraction by using the super-wetting modified coalescence material. The super-wetting modified coalescence material is prepared by taking a stainless steel honeycomb plate as a base material, carrying out degreasing and rust removal pretreatment and loading a fluorosilane / nano silicon dioxide composite modified layer, and has the advantages of outstanding hydrophobic and oleophylic characteristics, high corrosion resistance and high oil drop coalescence efficiency. The solid-liquid separation method based on the material adopts the process of raw material pretreatment, three-stage gradient cyclone separation, super-wetting coalescence separation and product collection and detection, and efficient separation of oil-water-solid three phases in oil-based rock debris is realized through the synergistic effect of cyclone centrifugal reinforcement and super-wetting surface coalescence. The method solves the problems of poor material corrosion resistance, incomplete oil drop separation, high energy consumption cost and the like in a traditional separation method, the oil recovery rate can reach 85% or above, and the method is suitable for large-scale treatment of oil-containing solid wastes such as oil-based rock debris in a shale gas production area.

The present invention relates to a system and method for separating and recovering hydrogen from coke oven gas (COG) in steel industry, particularly a system and method for separating and recovering hydrogen at a concentration of 99.9% by volume or more from coke oven gas (COG) in steel industry with a recovery rate of 95% or more.

The air guiding device comprises a shell and a guiding piece, the shell is provided with an air inlet and an air outlet, the air inlet supplies air in the first direction, the air outlet sucks air in the second direction, the guiding piece is connected with the inner wall of the shell, the guiding piece is located between the air inlet and the air outlet, and the guiding piece is located between the air inlet and the air outlet. The guide piece comprises a guide face, the guide face faces the air inlet, extends in the second direction and projects in the first direction, and the projection area of the guide face is larger than or equal to the projection area of the air inlet. Smoke entering the shell is guided and shunted through the guide face, the smoke resistance in the shell is reduced, the path of the smoke in the shell is reasonably planned, the smoke is prevented from generating cyclone, the smoke flow field in the shell is more uniform, the smoke is prevented from causing reentrainment of dust in the shell, dust enters the middle box body, and the service life of the middle box body is prolonged. The dust removal efficiency of the dust removal device is improved.

Systems and methods for separating components from a mixed gas stream in an indirect contact heat exchanger by a combination of direct contact heat and mass exchange are disclosed. The contact liquid stream wets an inner surface of a treatment channel that indirectly contacts the heat exchanger, and the mixed gas stream passes through the treatment channel, contacts the contact liquid stream for heat and mass exchange. Refrigerant in the refrigerant channel of the indirect contact heat exchanger is used for heat exchange with contact liquid.

The invention provides a device and a method for filtering powder in a negative-pressure chemical system. The device comprises a coalescence generator, a filter screen and a filter screen, the induced draft fan is connected with an inlet of the coalescence generator; the dust remover is connected with an outlet of the coalescence generator; the pressure supplementing machine is connected with the dust remover; wherein to-be-filtered gas containing nanoscale powder particles enters the coalescence generator from the induced draft fan, the nanoscale powder particles are coalesced into target particle powder larger than the aperture of the dust remover through the coalescence generator, and after the target particle powder enters the dust remover to be intercepted, the target particle powder enters the pressure supplementing machine to be subjected to pressure supplementing; and target gas with the target pressure is obtained and discharged. Small-particle powder can be coalesced into large-particle powder, the large-particle powder can be effectively filtered through the dust remover, and therefore nanoscale powder filtering is achieved.