1057 results about "Catalytic combustion" patented technology

The invention discloses a self-adaptive calibration system and method for a combustible gas sensor. The self-adaptive calibration system and method are suitable for a catalytic combustion type combustible gas sensor. The system comprises a basic calibration unit, a real-time monitoring unit, a drift detection and compensation unit and an output adjustment unit. The basic calibration unit is used for carrying out basic calibration on the sensor and determining an initial sensitivity coefficient, zero offset and response time of the sensor; the real-time monitoring unit is used for monitoring real-time parameters of the sensor under different environmental conditions; the drift detection and compensation unit is used for establishing a sensor performance parameter drift model and calculating a calibration compensation coefficient; the output adjusting unit is used for adjusting the voltage output value of the sensor in real time according to the calibration compensation coefficient; the method can adapt to environment change for real-time calibration, effectively compensates sensor drift, improves measurement precision and reliability, prolongs the service life of the sensor, reduces maintenance cost, and improves system safety.

The invention discloses a multi-stage gas inlet type hydrogen catalytic combustion system and method, and the system comprises a hydrogen supply part, an air supply part, a mixed gas pressure detection part, a mixed gas humidity detection part, a mixed gas hydrogen concentration detection part, a hydrogen catalytic combustion reactor, a branch gas supply part and a post-reaction hydrogen concentration detection part, the air supply component and the hydrogen supply component are connected in parallel and then connected to the hydrogen catalytic combustion reactor through a mixing pipeline, the hydrogen catalytic combustion reactor comprises multiple stages of catalytic reaction cavities which are sequentially distributed from the head end to the tail end, and each catalytic reaction cavity is connected with a branch air supply component. The branch gas supply components are further connected to the hydrogen supply component through branch pipelines, the gas inlet amount of each branch gas supply component is adjustable, the mixing pipeline is communicated with the branch gas supply components through branch connecting pipelines, and a mixed gas pressure detection component, a mixed gas humidity detection component and a mixed gas hydrogen concentration detection component are arranged on the mixing pipeline.

The invention belongs to the technical field of catalytic oxidation of carbon-containing industrial waste gas, and particularly relates to a Pd catalyst for catalytic combustion of carbon-containing waste gas as well as a preparation method and application of the Pd catalyst. The invention provides a Pd catalyst for catalytic oxidation of carbon-containing industrial waste gas such as CO and volatile organic pollutants VOCs. The Pd catalyst is obtained by compounding an amorphous CeO2 nano-cluster with a TiO2 substrate (marked as cCeO2 / TiO2) and indirectly regulating the form of Pd through gradient regulation of the content of the amorphous CeO2 nano-cluster by a sol-gel method on the basis of strong interaction of Pd and Ce species. The Pd catalyst prepared by the invention shows excellent low ignition temperature, high performance and certain universality in the catalytic combustion process of carbon-containing industrial waste gases such as CO and low-chain VOCs (Volatile Organic Compounds). In addition, the method for preparing the Pd catalyst is simple to operate and mild in condition, and has great industrial application potential and value.

The invention discloses activated carbon adsorption and desorption catalytic combustion equipment, and belongs to the field of waste gas treatment. The activated carbon adsorption and desorption catalytic combustion equipment comprises a spray tower, a dry filter, a catalytic combustion furnace, a heat exchange mechanism, an exhaust fan and a discharge pipe, an air inlet pipe is arranged at the air inlet end of the spray tower, and a first connecting pipe is arranged between the air outlet end of the spray tower and the air inlet end of the dry filter; the air inlet end of the air exhaust fan is provided with an air exhaust pipe, and the air exhaust end of the dry filter is provided with a second connecting pipe; the first gas inlet pipe is arranged at one end of the adsorption tower, and the first gas inlet pipe is communicated with the second connecting pipe; the catalytic efficiency of desorbed organic matters is effectively improved, meanwhile, small-particle dust is effectively prevented from being attached to the main activated carbon plate to affect the adsorption effect and the desorption effect, and waste gas is effectively prevented from being exhausted into the atmosphere to pollute the air.

The invention discloses an indoor gas leakage monitoring and intelligent joint control system, and belongs to the technical field of intelligent safety monitoring systems. Comprising a sensing layer, a network layer, a control layer and a platform layer, the sensing layer comprises a multi-sensor array and an edge computing node, the multi-sensor array is combined with a catalytic combustion sensor, an infrared sensor, a semiconductor sensor and a temperature and humidity sensor, and sensor data are fused through a weighting algorithm so as to reduce the false alarm rate; a temperature and humidity sensor dynamically adjusts a detection threshold value to adapt to different climate conditions, and an edge computing node is deployed with a lightweight machine learning model. Through multi-sensor data fusion and a weighting algorithm, the false alarm rate is reduced to be smaller than 0.1% per year, environment self-adaptive calibration and AI auxiliary decision making are performed, interference of alcohol, perfume and the like is effectively eliminated, different climate conditions are adapted, leakage judgment is completed at an equipment end through edge calculation, cloud delay is avoided, a multi-stage emergency strategy is provided, and intelligent safe ecology driven by the Internet of Things is constructed.

The invention discloses a combustion control method, system and device for volatile organic compounds, and relates to the technical field of thermotechnical automatic control. Acquiring the gas inlet flow rate, the gas inlet concentration and the reversing period of the catalytic combustion reactor when the volatile organic compounds are combusted in the catalytic combustion reactor; inputting the gas inlet flow rate, the gas inlet concentration and the reversing period into the mechanism model to obtain an initial prediction value of the dynamic parameter of the volatile organic compound in the combustion process; analyzing the air inlet flow velocity, the air inlet concentration and the reversing period through an error compensation model to obtain a prediction deviation value of the dynamic parameter; correcting the initial prediction value through the prediction deviation value to obtain a prediction value of the dynamic parameter of the volatile organic compound in the combustion process; when the predicted value of the dynamic parameter does not meet the preset condition, generating a control signal; the control signal is used to adjust the state of the catalytic combustion reactor. The method can accurately control the catalytic combustion process of the volatile organic compounds.

The utility model relates to the technical field of waste gas treatment, in particular to a zeolite molecular sieve rotating wheel catalytic combustion system which comprises a filtering unit, a zeolite rotating wheel unit, a desorption heat exchanger, a heating area, a catalytic combustion unit and a chimney. A gas outlet is formed in the other end of the adsorption area, and a part of gas exhausted from the gas outlet is sequentially connected to the adsorption area and the chimney; the other part is sequentially connected to a cooling area, a desorption heat exchanger, a desorption area, a desorption fan and a catalytic combustion unit, and an outlet of the catalytic combustion unit is connected with a chimney; the zeolite rotating wheel unit comprises a zeolite molecular sieve rotating wheel, the zeolite molecular sieve rotating wheel is divided into eight zeolite filling modules, a rotating shaft is fixedly sleeved with a fixing shaft, each zeolite filling module is in key connection with the fixing shaft, a fence is arranged on the periphery of each zeolite filling module, and outer flanges are arranged at the two ends of each fence respectively. And the adjacent outer flanges are fixed through bolts.

The invention belongs to the field of waste gas treatment, and particularly discloses an automatic waste gas control treatment method for coating equipment, which comprises the following steps: acquiring the real-time flow of waste gas generated by the coating equipment, and introducing the waste gas into a rotational flow plate tower spraying device when the real-time flow of the waste gas reaches a pre-starting flow value; starting a circulating spraying pump in a spraying device of the rotational flow plate tower so as to uniformly spray and purify the waste gas; the cyclone plate is controlled to separate out preliminarily purified waste gas, and the preliminarily purified waste gas is conveyed into an activated carbon adsorption concentration device to be subjected to adsorption treatment; when the adsorption treatment meets a desorption condition, controlling a desorption fan to start so as to heat and desorb the organic waste gas adsorbed by the activated carbon adsorption concentration device; the desorbed organic waste gas is input into a catalytic combustion carbon dioxide device to be preheated and catalyzed to obtain purified waste gas, and the purified waste gas and the organic waste gas to be subjected to catalytic treatment are subjected to heat exchange in the catalytic combustion carbon dioxide device and then discharged. Full-automatic efficient purification treatment of the waste gas of the coating equipment can be achieved.

The invention provides a cerium oxide photo-thermal synergistic catalytic material loaded with a metal promoter as well as a preparation method and application of the cerium oxide photo-thermal synergistic catalytic material. The cerium oxide photo-thermal synergistic catalytic material loaded with the metal promoter comprises a cerium oxide nanocrystal and the metal promoter loaded on the surface of the cerium oxide nanocrystal, the exposed crystal face of the cerium oxide nanocrystal comprises a {111} crystal face, and the area of the {111} crystal face accounts for more than 50% of the total area of the outer surface of the crystal face; the mass fraction of the metal cocatalyst is 0.1-2wt% of the mass of the cerium oxide. The catalytic material provided by the invention takes cerium oxide with a {111} crystal face as an exposed special crystal face as a carrier, photons can be captured and charges can be separated more efficiently, and phonons further promote deep trap state charge release. Meanwhile, the metal additive is added and cooperates with cerium oxide with exposed special crystal faces for catalysis, so that the catalytic effect is remarkably improved, and efficient catalytic combustion of methane is achieved under the mild condition.

The invention relates to the field of mine mining, and discloses a mine efficient mining intelligent ventilation system which comprises an intelligent monitoring module, the intelligent monitoring module is installed in a mine, environment information in the mine is collected, and the collected information is transmitted to a central control module; the intelligent monitoring module is connected with a central control module, and the central control module is the core of the whole system, receives parameter information transmitted by the intelligent monitoring module, and controls the ventilation equipment module to start according to the parameter information. According to the air purification module, various treatment modes including multi-stage filtration, oxygen supplement, catalytic oxidation, chemical spraying, adsorbent purification, catalytic combustion and the like are adopted for different harmful gases. Therefore, the system can effectively remove various pollutants in mine air, air quality is improved, and health and safety of workers are guaranteed.

The invention provides a high-selectivity anti-carbon-deposition CO oxidation catalyst and a preparation method thereof. The CO oxidation catalyst comprises a carrier, an active component loaded on the surface and / or in the carrier, and an auxiliary agent, wherein the active component comprises a noble metal element, and the auxiliary agent comprises a non-noble metal element; by taking the total mass of the carrier as 100%, the content of the auxiliary agent is less than 10%, preferably 3-6%; the total mass of the carrier and the auxiliary agent is 100%, and the content of the active component is less than 1.5%, preferably 0.5-1.5%. The CO oxidation catalyst disclosed by the invention has the characteristics of NOx resistance, carbon deposition resistance, difficulty in oxidizing NO, high CO catalytic combustion activity and the like, and has excellent CO catalytic combustion performance, especially the performance of catalytic combustion of steel sintering flue gas CO.

The invention provides an integrated heat recycling type catalytic micro-combustor for marine equipment and a preparation method, and relates to the technical field of clean fuel catalytic combustion under the microscale. The integrated heat recycling type catalytic micro-combustor comprises a micro-combustor shell, and two sets of symmetrically-arranged partition plates are arranged on the inner side of the micro-combustor shell; the two sets of partition plates divide the interior of the miniature combustor shell into a first preheating channel, a gas outlet channel and a second preheating channel, the gas outlet channel comprises a combustion chamber and a gas outlet which are sequentially communicated, a bluff body is arranged on the inner side of the gas outlet channel, and concave cavities are formed in the partition plates and correspond to the combustion chamber in position. The inner side of the air outlet channel and the outer side of the bluff body are coated with a catalyst; according to the invention, the preheating channel is arranged to set the micro-combustor to be in a backheating form, unburned gas in the micro-combustor is preheated by tail gas after gas intake, so that the gas obtains a higher initial temperature in the micro-combustor, and the design optimizes the high-speed limit of mixed gas in the micro-combustor, strengthens the heat cycle in the combustor and effectively reduces the heat loss.

The invention discloses a preparation method of a low-temperature high-air-velocity VOC (volatile organic compound) catalyst and the catalyst, belongs to the field of industrial waste gas treatment, and aims to solve the problems that volatile organic compounds VOCs as main atmospheric pollutants cause photochemical smoke and harm human health; a VOCs catalyst in the prior art cannot meet catalytic combustion treatment process conditions at a high space velocity of 30000 h <-1 >. The high airspeed VOCs noble metal catalyst is developed aiming at a complex volatile organic compound VOCs catalytic combustion technology and meets industrial requirements, and the maximum airspeed of the catalyst is 30000 h <-1 >. The catalyst is an integral honeycomb catalyst formed by taking a double-effect synergistic two-component noble metal precursor, a transition metal oxide and a rare earth oxide as active components, so that the oxygen vacancy of a carrier and the acidity of a catalyst Bronsted acid are enhanced, and the capabilities of oxygen vacancy flow on the surface of the catalyst and adsorption and oxidative dissociation of functional groups on the surface of VOCs (Volatile Organic Compounds) are enhanced.

The utility model relates to the technical field of combustion devices, and discloses an environment-friendly catalytic combustion device which comprises combustion equipment, a water tank, a filter box and a heating radiator, a heat exchange pipe is installed on one side of the top end of the combustion equipment, and the middle of the heat exchange pipe is a snake-shaped part. Through the design, after water in the water tank is heated by the heat exchange pipe communicated with the combustion equipment, hot air emitted by hot water is conveyed to the heating radiator through the first exhaust pipe communicated with the top of the water tank, the top of the filter box is communicated with the second exhaust pipe, and the hot air which is filtered and still has waste heat is also conveyed to the heating radiator through the second exhaust pipe to be utilized; and the filter box is fan-shaped, the rotating disc is rotated through the motor, so that one side, provided with a newly-installed filter plate, of the outer side of the rotating disc is rotated into the filter box for use, the used side is rotated out of the filter box, the filter plate can be quickly replaced, and the disassembly and assembly difficulty of the filter element is reduced.

The multi-component condensation, adsorption and catalytic oxidation device comprises a condensation, adsorption and catalytic oxidation device body, and the condensation, adsorption and catalytic oxidation device body is composed of a catalytic combustion furnace, a catalytic fan, a buffer, a carbon tank, a waste gas fan, a condenser and a heat exchanger which are arranged in a machine shell; a functional mechanism is arranged outside the catalytic combustion furnace, and a cleaning structure for cleaning the filter plate is arranged on the filter cartridge. And a second synchronous structure is arranged between the rotating shaft and the rotating fan. The device has a three-stage condensation link for recovering and treating volatile organic compounds, a knocking plate and a piston pump are respectively driven to work through a second synchronous structure, a diaphragm pump is used for pumping water, and water mist sprayed by a spray head adsorbs impurities in flue gas and precipitates at the bottom of a filter cartridge; the filtered flue gas enters the volatile organic matter equipment to be treated, and the knocking plate can knock the filter plate when moving up and down in a reciprocating manner, so that the filter plate is prevented from being blocked.

The utility model discloses a flame-catalysis integrated combustor, which solves the problem that catalytic combustion and flame combustion are not integrated in the prior art, and has the beneficial effects of realizing integrated combustion and improving combustion efficiency, and the specific scheme is as follows: the flame-catalysis integrated combustor comprises a shell, one side of the shell is provided with an air inlet, and the other side of the shell is provided with an air outlet; a fuel-air mixer, a flame tube and a catalytic component are sequentially arranged in the shell from one side of the air inlet to the other side of the shell, the fuel-air mixer comprises a plurality of fuel distribution chambers which are sequentially arranged in a nested mode, and a gas circulation channel is formed between every two adjacent fuel distribution chambers; the fuel distribution chambers are provided with fuel spray holes facing the gas circulation channel, the outlet end of the fuel-air mixer is inserted into the flame tube, the flame tube comprises a shell, the shell and the shell are arranged at an interval, and the catalytic component is fixed to the end, away from the fuel-air mixer, of the shell of the flame tube.

The invention discloses an organic waste gas catalytic purification device with an airflow multi-stage circulation function. The organic waste gas catalytic purification device comprises a box body, a gas inlet pipe, a gas outlet pipe I, a gas outlet pipe II, an adsorption mechanism, a desorption mechanism, a catalytic combustion mechanism, a heat transfer pipe and a connecting pipe, a partition plate I is arranged in the box body and divides the box body into an adsorption bin and a catalytic combustion bin; an air inlet pipe is arranged on the side wall of a box body of the adsorption bin, and an air outlet pipe I is arranged at the top; a gas outlet pipe II is arranged on the side wall of the catalytic combustion bin; the adsorption mechanism and the desorption mechanism are both installed in an adsorption bin of the box body, the catalytic combustion mechanism is installed in a catalytic combustion bin of the box body, and the two ends of the heat transfer pipe are connected with the top of the desorption mechanism and the top of the catalytic combustion mechanism respectively. The connecting pipe is connected to the bottoms of the desorption mechanism and the catalytic combustion mechanism. Organic waste gas can be repeatedly adsorbed, so that the organic waste gas is fully adsorbed and purified; the activated carbon plates in the adsorption cylinder and the desorption cylinder can be quickly replaced.

The invention discloses a self-humidifying hydrogen catalytic combustion adjusting system based on backflow and a method of the self-humidifying hydrogen catalytic combustion adjusting system. The self-humidifying adjusting hydrogen catalytic combustion system based on backflow comprises an oxygen supply component, a hydrogen supply component, a mixed gas pressure detection component, a mixed gas humidity detection component, a mixed gas hydrogen concentration detection component, a hydrogen catalytic combustion reactor, a post-reaction hydrogen concentration detection component and a reaction gas circulation component. The self-humidifying adjusting hydrogen catalytic combustion system based on backflow is simple in structure and low in energy consumption, catalytic combustion of unutilized hydrogen can be safely, stably and thoroughly achieved, and the problem that hydrogen combustion is insufficient in the hydrogen catalytic combustion starting stage is solved.

The invention discloses a catalytic combustion catalyst for treating CVOCs (Chemical Volatile Organic Compounds) as well as a preparation method and application of the catalytic combustion catalyst. The preparation method comprises the following steps: (1) impregnating and loading cerous nitrate and trimethyl phosphate on a carrier, drying, and roasting at 600-800 DEG C to form a modified carrier containing a cerous phosphate crystal phase; and (2) impregnating and loading active metal ruthenium on the modified carrier, drying and roasting to obtain the catalyst for treating catalytic combustion of the CVOCs. The catalyst provided by the invention can be used for catalytic combustion degradation of CVOCs such as dichloromethane, chlorobenzene, chloroethylene, dichloroethane, dichloroethylene, oxychloropropane and the like. For catalytic combustion degradation of CVOCs, the catalyst disclosed by the invention can show high activity, high chlorine-resistant stability, low polychlorinated by-product selectivity and thermal stability, and has certain industrial application prospects.

The invention discloses a catalytic combustion auxiliary preheating ammonia-hydrogen engine system and an operation method, the catalytic combustion auxiliary preheating ammonia-hydrogen engine system comprises an ammonia decomposition system, a NOx decomposition system, an ammonia-hydrogen engine, a flameless combustion system, an air source and an ammonia gas source, a preheating cooling cavity rapidly heats the inner wall surface of a combustion cavity to reach the temperature required by flameless combustion; tail gas generated by combustion further preheats all parts of the ammonia decomposition system and the NOx decomposition system, the response speed in the starting stage is increased, and in the normal operation stage, high-temperature combustion tail gas generated by flameless combustion is sequentially introduced into the heating cavity and the combustion tail gas heat supply cavity to heat the ammonia decomposition cavity so as to decompose ammonia gas in the ammonia decomposition cavity into hydrogen, and the hydrogen is converted into nitrogen; and the NOx decomposition cavity is heated to decompose NOx in the tail gas of the engine into NO, the combustion-supporting mixed gas is preheated through the preheating cooling cavity and then sprayed into the combustion cavity, the combustion-supporting mixed gas is mixed with ammonia gas for flameless combustion, and flameless combustion is further assisted.

The invention discloses a flue gas treatment system and a flue gas treatment process, and relates to the field of flue gas treatment.The flue gas treatment system comprises (a) a cooling and washing device (2) used for cooling and washing flue gas so as to dehumidify the flue gas, and (b) a flue gas treatment device (3) used for cooling and washing the flue gas, (b) the deoxidizing device (3) is used for deoxidizing the flue gas from the cooling and washing device (2); (c) a catalytic combustion subsystem (4) for combusting carbon monoxide in the flue gas from the deoxidizing device (3); and (d) a waste heat recovery subsystem (5) for recovering the heat of the flue gas from the catalytic combustion subsystem (4). According to the system, the heat of the flue gas can be fully recovered while the emission of pollution gas is reduced, and the comprehensive utilization of the chlorinated flue gas is realized.

The invention provides an anode tail gas recovery and tail gas combustion combined SOFC (Solid Oxide Fuel Cell) combined cooling heating and power system and method. The system comprises an SOFC power generation module, an input system and a tail gas treatment and energy recovery module, the SOFC power generation module is respectively connected or disconnected with the input system and the tail gas treatment and energy recovery module; according to the anode tail gas recovery and tail gas combustion combined SOFC combined cooling heating and power system and method, the structure of the system can be optimized, anode tail gas shunting and intelligent circulation are achieved, and catalytic combustion cooperative treatment is guaranteed; a multi-grade energy cascade recovery system is realized; and an intelligent cooperative control system is realized.

The invention discloses a VOCs emission dynamic prediction and energy-saving control system for catalytic combustion equipment in a casting workshop and a medium, the system comprises a high-frequency VOCs concentration monitoring unit which adopts TDLAS and FTIR spectrum analyzers and obtains high-precision concentration data through a data fusion algorithm, and a secondary differential signal of the TDLAS analyzer is independently extracted as a key feature; the data preprocessing and feature engineering module is used for processing multi-source data; the dynamic emission prediction module is internally provided with an attention mechanism time sequence convolutional network ATCN model, and realizes the ultra-early prediction of the emission concentration by fusing the secondary differential signal and historical data; the multi-objective optimization control module adopts a model predictive control MPC framework, the lowest comprehensive operation cost is taken as an objective, a dynamic virtual carbon penalty coefficient beta can be dynamically adjusted according to a workshop production plan, an advanced control instruction is generated through rolling optimization, and the equipment power and the fan frequency are adjusted; according to the method, ultra-early prediction, prospective control, energy conservation and consumption reduction of VOCs treatment are realized.

The invention provides an efficient power battery disassembly tail gas treatment system which comprises a tail gas conveying pipeline for conveying tail gas, a bag-type dust collector for receiving the tail gas conveyed by the tail gas conveying pipeline, a condensing tower for receiving the tail gas exhausted by the bag-type dust collector, a combustion furnace for receiving the tail gas exhausted by the condensing tower, and an alkali wash adjusting tower for receiving the tail gas exhausted by the combustion furnace, the quench tower is used for receiving tail gas exhausted by the alkali washing adjusting tower, the water spraying device is used for receiving the tail gas exhausted by the quench tower, and the active adsorption box is used for receiving the tail gas exhausted by the water spraying device. Through comprehensive application of various technologies such as adsorption, catalytic combustion and condensation recovery, comprehensive and efficient purification treatment of harmful substances in the power battery disassembly tail gas is realized; and the energy consumption and the cost in the treatment process are reduced in manners of recycling valuable organic solvents and the like.

The invention discloses a color-coated sheet VOC low-temperature catalytic combustion system and method, and the system comprises the following unit modules: a waste gas collection unit used for collecting VOC-containing waste gas volatilized in a color-coated sheet production process; the pretreatment module is connected with the waste gas collection unit and is used for pretreating the collected waste gas and removing impurities such as dust and liquid drops in the waste gas; the preheating device is connected with the pretreatment module and is used for heating the pretreated waste gas to a temperature interval suitable for catalytic reaction; the catalytic combustion reaction device is connected with the preheating device, is filled with a low-temperature catalyst and is used for promoting VOC (Volatile Organic Compounds) in the waste gas to generate a catalytic combustion reaction under a low-temperature condition; the heat recovery and cyclic utilization assembly is connected with the catalytic combustion reaction device and is used for recovering heat generated by reaction and feeding back part of the heat to the preheating device for preheating the waste gas; and the tail gas purification and emission unit is arranged behind the catalytic combustion reaction device and is used for deeply purifying the reacted tail gas to ensure that the tail gas is discharged after reaching the standard.

The invention belongs to the technical field of waste gas collection and treatment devices, and discloses a workpiece spraying waste gas collection and treatment device which comprises a gas suction hood, a first fan, a filter, an adsorption box, an exhaust pipe, a second fan and catalytic combustion equipment, the gas suction hood is communicated with the first fan, the first fan is communicated with the filter, the filter is communicated with the adsorption box, and the exhaust pipe is communicated with the second fan. The adsorption box is communicated with the exhaust pipe, one end of the second fan is communicated with the adsorption box, the other end of the second fan is communicated with the catalytic combustion equipment, vertical baffles are fixedly arranged at the four corners of the interior of the adsorption box, and a plurality of horizontal baffles are further fixedly arranged in the adsorption box; activated carbon adsorption mechanisms are arranged on the inner sides of the four vertical baffles; according to the invention, through cooperation of the activated carbon adsorption part, the conveyor belt and the like, the activated carbon adsorption part located at the rear side of the adsorption box is transferred to the front side of the adsorption box, so that the activated carbon adsorption mechanism is fully utilized.

The invention discloses a VOC (volatile organic compound) recovery and treatment device in a color-coated sheet production process, which comprises a sealing cover and a controller, the sealing cover is connected with a transition pipe through an induced draft fan, the transition pipe is connected with a cold liquid pipe through a condenser, the cold liquid pipe is connected with a liquid discharge pipe, the liquid discharge pipe is connected with a liquid collection tank through a liquid collection valve, and the liquid collection tank is connected with a liquid level sensor and the liquid discharge valve. The cold liquid pipe is connected with a gas distributing pipe, the gas distributing pipe is connected with an absorption and desorption tank through a gas inlet valve, a grid support is connected in the absorption and desorption tank, the grid support is connected with an adsorbent, the absorption and desorption tank is connected with a heater and a blower, the absorption and desorption tank is connected with a catalytic combustion chamber through an output valve, and the absorption and desorption tank is connected with a transition pipe through a return valve. The method has the beneficial effects that efficient recovery is achieved, and resource utilization is maximized; deep purification is achieved, and the environment-friendly effect is remarkable; energy is saved, consumption is reduced, and cost is greatly reduced; intelligent control is achieved, and operation is stable and reliable; the structure is optimized, and maintenance is convenient and efficient.

The utility model discloses VOCS (volatile organic compounds) adsorption and catalysis integrated equipment and belongs to the field of environmental protection and waste gas treatment. VOCS adsorption and catalysis integrated equipment comprises a box body, and the interior of the box body is sequentially divided into a spraying bin, a filtering bin, an adsorption bin, a heat exchange bin, a heating bin and a catalysis bin; according to the VOCS organic waste gas treatment device, the spraying mechanism, the dry type filtering mechanism, the activated carbon layer, the desorption mechanism, the heat exchange bin, the heating bin, the catalysis bin and other components are arranged in the box body, the overall structure is small in occupied area, all the components are matched with one another, and according to the two basic principles of adsorption and catalytic combustion, comprehensive and efficient treatment on VOCS organic waste gas is achieved; the waste gas treatment equipment has the advantages that pollutants such as odor, dust and paint mist in waste gas are effectively removed, organic substances are converted into harmless substances through catalytic decomposition, the purpose of environment-friendly emission is achieved, meanwhile, the equipment has the advantages of being high in resource utilization rate, easy and convenient to operate and maintain and the like, and the waste gas treatment efficiency and economic benefits are remarkably improved.

The waste gas pretreatment device for the CO catalytic combustion furnace comprises a pretreatment box, a cavity is formed in the pretreatment box, a dust removal box is fixedly installed at the bottom of the cavity, a filter box is fixedly installed at the top of the dust removal box, and a water storage box is fixedly installed on the outer side of the dust removal box. A plurality of atomizing nozzles are fixedly mounted on the inner side wall of the dust removal box and extend into the water storage box, a directional guide pipe is arranged at the bottom of the filter box and extends downwards into the dust removal box, a sponge plate is fixedly mounted in the filter box, and a second filter screen, an activated carbon layer and a third filter screen are fixedly mounted above the sponge plate; by arranging the dust removal box and the filter box, organic waste gas is pretreated, dust particles in the organic waste gas are effectively removed, follow-up catalytic combustion of the organic waste gas is more sufficient, the problem that after catalytic combustion, solid particles are adsorbed in a catalytic combustion furnace and are difficult to clean is solved, and the service life of the catalytic combustion furnace is prolonged.

The invention discloses a sulfur-tolerant catalytic combustion catalyst and a preparation method and application thereof, and belongs to the technical field of sulfur-tolerant catalytic combustion catalysts.The catalyst takes high-temperature porous titanium-containing activated aluminum oxide as an active carrier, precious metal as an active component and non-precious metal as an auxiliary; the noble metal is selected from at least one of platinum and palladium; the noble metal accounts for 0.05-1.0% of the total mass of the catalyst; and the assistant accounts for 0.1-10% of the total mass of the catalyst. According to the method for preparing the sulfur-resistant catalytic combustion catalyst, stepped high-temperature open fire roasting treatment is adopted, the precious metal and the auxiliaries are loaded on the surface layer of the spherical high-temperature porous titanium-containing activated aluminum oxide, the eggshell-shaped catalyst is prepared, the activity of the precious metal is utilized to the maximum extent, and therefore the catalytic activity and sulfur resistance of the prepared catalyst are improved; the consumption of noble metal is saved, the cost of the catalyst is reduced, and the catalyst is suitable for sulfur-containing VOCs environment-friendly treatment occasions with relatively high gas source pressure and high non-methane total hydrocarbon conversion rate; the catalyst provided by the invention is simple in preparation process and environment-friendly.