21 results about "Soot particles" patented technology

The application belongs to the technical field of lubricating oil additives, and particularly relates to a polyisobutylene succinimide dispersant as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing polyisobutylene maleic anhydride, base oil and aromatic hydrocarbon solvent, then adding aminobenzene boronic acid, and performing reaction by increasing temperature to reflux temperature, and obtaining the polyisobutylene succinimide dispersant after filtration. The polyisobutylene succinimide dispersant is prepared by using polyisobutylene maleic anhydride and aminobenzene boronic acid, the molecular structure of the polyisobutylene succinimide dispersant contains not only an aromatic ring but also an oxygen-containing benzene boronic acid group, the aromatic ring and the benzene boronic acid group both have a good adsorption effect on soot particles, and the ability of the polyisobutylene succinimide dispersant to disperse soot is improved. The performance test results show that the oil product prepared by using the polyisobutylene succinimide dispersant of the application not only improves the soot dispersion performance of the oil product, but also improves the high-temperature detergency of the oil product, and the preparation process is simple and easy to implement.

A method for purifying smoke source in tunnel excavation process relates to the field of tunnel engineering air purification, comprising a device box, a negative pressure return air inlet, a pressure fan, a static pressure box, a smoke treatment device, a harmful gas purification device and a high-pressure air curtain system are fixed in the device box, the high-pressure clean air jet formed by the air outlet is sprayed to the drilling and blasting operation face, the high-concentration smoke-carrying air area is targeted, quickly diluted and strongly disturbed, the smoke-carrying air is passively returned to the negative pressure return air inlet grid area on both sides of the device box, the smoke particles are intercepted and purified by the smoke treatment device, the harmful gas is purified by the harmful gas treatment device, and the purified air is pressurized and sprayed by the pressure fan to complete the circulation of the smoke-carrying air on the face; the airflow organization formed by the method has good disturbance effect on the air retention on the face, has good smoke and dust removal effect in a large space or range, and is also suitable for relatively closed space.

This utility model belongs to the field of food equipment technology, specifically a high-efficiency, energy-saving, heat-dissipating automatic cooking machine pot module. It includes a pot cover, which is composed of an upper cylindrical section and a lower funnel section. The bottom surface of the cylindrical section has a central through hole, and several ventilation holes are arranged around the central through hole. A flow-dividing baffle is provided on the bottom surface of the cylindrical section to divide the ventilation holes into inner and outer groups. The top of the funnel section corresponds to the position of the flow-dividing baffle. Inside the pot cover, from top to bottom, are arranged an inner pot, an electromagnetic coil, a fan, and a filter screen. The filter screen includes a base plate, on which a return flow baffle is provided. When the automatic cooking machine pot module of this utility model is working, cold air is drawn into the interior of the pot cover by the fan and exchanges heat with the electromagnetic coil and the bottom of the inner pot, resulting in high heat exchange efficiency. The filter screen at the bottom of the funnel section is designed with a return flow baffle structure, which reduces the entry of soot particles when air passes through this structure.

The application provides a kind of double-phase fluidized roasting method, the roasting furnace body of the method is straight cylinder cavity, and the sealing cavity surrounded by the pouring dome and the heat preservation structure independently arranged in the furnace top;The feeding port and the discharge port of the roasting furnace are opened on the same side of the furnace body, and the feeding port is located above the discharge port;The feeding port is equipped with a drum thrower;The bottom of the roasting furnace is provided with a plurality of dispersedly arranged heat removal devices;The flue of the roasting furnace is provided with an air supplement device;During the dense phase oxidation desulfurization process of raw materials, the heat removal device is uniformly heat exchanged to stabilize the bed temperature, and the high temperature steam discharged by the heat removal device is used as the medium for maintaining the constant temperature of the sealing cavity;The air supplement device is used to supplement oxygen-rich air into the flue to form a dilute phase secondary roasting zone.The furnace top of the application uses a heat preservation structure independent of the dome, prolonging the service life of the furnace top;The feeding port is arranged above the discharge port on the same side, and the raw material into the furnace hinders the smoke dust particles in the upward flue gas, reducing the dust content of the flue gas.

This invention relates to a swirl-type particulate oxidation catalyst for exhaust gas aftertreatment via micro-injection. The catalyst includes a reactor with a swirl channel along its axial direction. A catalytic coating is applied to the swirl channel. The reactor also includes a turbulence mechanism to increase the contact time between the airflow and the catalytic coating. The turbulence mechanism includes at least one turbulence element disposed within the swirl channel and a drive module for driving the turbulence element to reciprocate axially within the swirl channel. During the reciprocating motion, the turbulence element causes a periodic change in the local cross-sectional area of ​​the swirl channel, altering the velocity and direction of the airflow passing through it. This invention enables the exhaust gas to rotate at high speed within the swirl channel, using centrifugal force to throw soot particles towards the channel wall, increasing the collision probability between soot and the catalytic coating, and simultaneously extending the residence time of soot within the catalyst, thereby improving oxidation efficiency.

The present application relates to the field of flue gas treatment, in particular to a flue gas treatment device for coal-biomass-sludge mixed combustion, comprising a support, a smoke inlet box, a smoke dust treatment box and a flue gas treatment box are sequentially installed on the top of the support from bottom to top, a smoke dust filtering assembly for filtering smoke dust and a smoke dust cleaning assembly for cleaning smoke dust are installed in the smoke dust treatment box, a dust discharge hopper is installed at the bottom of the smoke inlet box, a flue gas treatment assembly for reheating treatment of flue gas, a flue gas spraying assembly for spraying cooling and catalytic treatment of flue gas are installed in the flue gas treatment box, and a smoke discharge hood is installed at the top of the flue gas treatment box. The smoke dust particles in the flue gas are filtered by the smoke dust filtering assembly, the filtered flue gas continues to enter the inside of the flue gas treatment box upwards, the flue gas treatment assembly can perform secondary heating combustion on the flue gas, thereby burning and purifying the dioxin substances in the flue gas, and discharging from the top of the smoke discharge hood.

A method of forming an optical element is provided. The method includes producing silica-based soot particles using chemical vapor deposition, the silica-based soot particles having an average particle size of between about 0.05 μm and about 0.25 μm. The method also includes forming a soot compact from the silica-based soot particles and doping the soot compact with a halogen in a closed system by contacting the silica-based soot compact with a halogen-containing gas in the closed system at a temperature of less than about 1200° C.

The application discloses a centrifugal fan for fire-fighting ventilation and relates to the field of centrifugal fans.The centrifugal fan for fire-fighting ventilation is characterized in that the groove of the connecting disc is matched with the cavity of the cavity disc, the cavity structure formed between the groove of the connecting disc and the cavity disc is utilized in the smoke guiding space, the cavity structure of the cavity disc itself is matched, a double cavity is formed, the cavity is utilized to block the heat in the smoke, the transmission amount of the smoke heat to the motor is reduced, the heat contained in the fire smoke is prevented from being transmitted to the motor when the smoke is discharged, the motor temperature is prevented from being overheated, the motor is prevented from being damaged, the smoke discharging work can be continuously carried out, the smoke is rotated by the outer leaf plate close to the inner wall of the cavity cylinder, the rotation speed of the smoke at the scraping position is ensured, the rotation speed of the smoke at the scraping position is prevented from being low, the scraped adhered smoke dust particles are prevented from being unable to be driven, the smoke dust particles are prevented from falling and piling up, and the piling up and blockage in the fan are prevented.

This utility model relates to an automotive exhaust catalyst regeneration device, belonging to the field of catalyst regeneration technology. The device includes a regeneration component and a spraying component. The regeneration component includes a base, a connecting cylinder, a first motor, a filter cylinder, and a scraper. The spraying component includes a connecting pipe, a nozzle, and a second motor. In use, the automotive exhaust catalyst to be regenerated is placed inside the filter cylinder. The first motor then drives the filter cylinder to rotate. Water is supplied to the connecting pipe and the nozzle via an external water supply pipe. During the rotation of the scraper, the accumulated catalyst inside is lifted. The falling catalyst impacts the connecting pipe, the nozzle, the filter cylinder, and the scraper, causing vibration and resulting in a better rinsing effect. This prevents the catalyst from retaining impurities such as soot particles, thus improving the regeneration effect.

The utility model discloses a kind of smoke treatment devices for fiber laser cutting machine, it includes fiber laser cutting machine cover shell: the top fixed mounting of fiber laser cutting machine cover shell has rectangular box, the left side fixed connection of rectangular box has fan, filter cartridge is fixedly installed between the fan and rectangular box, the turbulence plate is jointly communicated with fiber laser cutting machine cover shell between connection pipe, the air outlet end of fan is communicated with external discharge pipe. The utility model is through turbulence plate to the welding fume gas in rectangular box and carries out turbulence treatment, through airflow impact baffle and steering, utilize inertia force to separate large particle size smoke dust particles in airflow, then smoke dust particles fall to collect bottom plate and collect under the action of gravity, can reach through the large particle size particle in smoke and pretreatment collection, so that the cleanliness of smoke before being filtered by filter cartridge filter can be improved, to extend the service life of filter cartridge filter purpose.

Various embodiments disclosed relate to a device and methods for electrosurgery, where the device end effector includes an anti-smoke layer. The present disclosure includes a device having first and second electrodes that include the anti-smoke layer, which can be a hydrophobic layer to aid in reduction of smoke production during operation.

The utility model relates to the technical field of smoke treatment, disclose a kind of smoke treatment device of coke pusher, including shell one, the outside of shell one is fixedly connected with air inlet pipe, the bottom of shell one is fixedly connected with spray head, the bottom of shell one is fixedly connected with connecting pipe, the bottom of connecting pipe is fixedly connected with shell two, drying assembly and cleaning assembly are installed in the inside of shell two, cleaning assembly includes filter screen one, the filter screen one is fixedly connected in the inside of shell two, the inside of shell two is slidably connected with electric push rod, the electric push rod is fixedly connected with scraper.The utility model in the water curtain is formed by introducing smoke through spray head and spraying water mist, dust and water are mixed after smoke through water curtain, flow to filter screen one, start fan and electric heating wire drying mixture, convenient recycling.Electric push rod and scraper cooperate, recycling can be carried out.Soot particles can be collected, filter screen one is cleaned, and production expenditure is reduced.

This invention discloses a comprehensive and detailed reaction mechanism for natural gas / air and its development method. The comprehensive and detailed reaction mechanism includes 290 gas-phase components and 3339 gas-phase elementary reactions, 1 bulk component and 2 surface sites, and 56 soot particle surface reactions. This invention is based on the IDT of chain alkane oxidation, the concentration distribution of small-molecule gas-phase components and large-molecule PAHs of soot nucleation precursors in fuel-rich BSF ethylene flames, the distribution characteristics of soot SVF and PND in fuel-rich BSF and CDF ethylene flames, and the NO content of BSF methane flames under different equivalence ratios. x NO concentration distribution and the reaction of syngas / ammonia in different lean combustion atmospheres x A multidimensional validation study of PK_CNS was conducted, comparing various aspects such as concentration change characteristics. Based on the high consistency between predicted and experimental values, the excellent predictive performance of PK_CNS was verified, and it can be extended to describe the combustion process of natural gas in flame-heated furnaces.

The application provides a rotary covering soot filtering device for a ship exhaust pipe, which comprises a filtering assembly and a turnover driving assembly, the filtering assembly is rotationally connected with the lower outer wall of the exhaust pipe outlet, the turnover driving assembly is arranged outside the chimney and connected with the filtering assembly; a filtering assembly base is arranged at the top of the chimney and used for supporting the filtering assembly. The rotary covering soot filtering device for the ship exhaust pipe can filter out soot particles in the exhaust gas by adding a corresponding filtering screen device at the end of the exhaust pipe, clean the exhaust gas discharged into the atmosphere and eliminate the phenomenon that soot is scattered in the air.

This utility model discloses a dust-free emission structure for a combustion furnace, including an emission pipe and a scraper. A connecting rod is provided on the front side of the inner interior of the emission pipe, and a hydraulic cylinder is installed on the inner wall of the connecting rod. A movable frame is installed at the rear end of the hydraulic cylinder, and fixed side plates are provided on the left and right sides of the movable frame. The scraper is located on the outer wall of the fixed side plates. This dust-free emission structure for a combustion furnace can spray water in a mist form through a settling spray head, increasing the contact area between the water mist and the dust. When dust particles move in the airflow, due to their inertia, they collide with the mist droplets, changing their direction of motion and settling down. Larger dust particles gradually settle under the influence of gravity. The activated carbon filter can adsorb odors and discoloration in the dust when it enters the emission pipe, preventing odors inside the emission pipe. The detachable filter can intercept damp small dust particles, achieving dust collection.

The invention discloses a clean combustion method for non-premixed combustion, which is characterized in that an MOF (Metal Organic Framework) derived monatomic catalyst, a high-voltage electrostatic field and low-frequency acoustic excitation are deeply fused, a space-time coupled multi-field synergistic environment is formed in a combustion cavity, and atomic-scale dispersed active sites provide ultrahigh intrinsic catalytic activity; the electrostatic field drives soot particles and polar pollutant molecules to directionally migrate and be enriched on the surface of the catalyst, and meanwhile, the interface charge transfer process is enhanced; the acoustic flow field significantly optimizes flow field distribution, continuously updates a gas-solid boundary layer on the surface of the catalyst, and realizes dual reinforcement of mass transfer and reaction kinetics. According to the method, the bottleneck of a traditional single or double-element technology is broken through, the soot removal efficiency is larger than or equal to 99%, the CO removal efficiency is larger than or equal to 95%, the system response time is shortened to the second level, stable and efficient operation can be kept within the wide load range, the inhibition efficiency of soot generated by liquid fuel combustion is 99% or above, and the inhibition efficiency of CO and nitric oxide can reach 99% or above.

The utility model provides a kind of coal gas generating set flue gas waste heat recovery device, belong to waste heat recovery equipment technical field.This kind of coal gas generating set flue gas waste heat recovery device includes waste heat recovery tank and soot removal mechanism, the bottom of waste heat recovery tank inside is equipped with heat pipe, the both sides of waste heat recovery tank are equipped with joint, movable frame is movably connected in the bottom of waste heat recovery tank inner wall, movable frame is movably connected with brush rod in its inside, support column is fixedly connected in the both sides of movable frame bottom, by setting soot removal mechanism, when heat pipe needs to carry out soot particle removal, provide the medium of brushing for multiple heat pipes to remove soot particle for user, so that user removes soot particle on heat pipe surface by brushing, avoid the situation that soot particle removal is difficult to remove soot particle on multiple heat pipes, thus improve the soot particle removal operation convenience of heat pipe.

The utility model relates to temperature control equipment technical field, and disclose the roasting furnace multi -temperature -zone intelligent temperature control equipment, including the bottom plate, still including the waste heat recovery tank and multi -temperature -zone combustion subassembly, the top fixedly connected with the roasting furnace body of bottom plate has, the left -hand end fixedly connected with the feed port of roasting furnace body, the inside of roasting furnace body is provided with the multi -temperature -zone combustion subassembly of the object convenient to full combustion, the top right -hand end fixedly connected with the waste heat recovery tank of bottom plate. Through two activated carbon purification board can adsorb the smoke dust particle mixed in the flue gas, make it filter the flue gas, the filtered flue gas will enter the serpentine heat exchange pipe in the first delivery pipe, the flue gas can heat the water in hot water tank through the serpentine heat exchange pipe, make the heat be utilized, then the flue gas can be discharged through the second delivery pipe, make it reduce the pollution to the environment, prevent air quality deterioration, and reduce the harm to the surrounding ecosystem and human health, make it improve environmental protection.

The utility model discloses thermal power waste heat recycling equipment relates to waste heat recovery equipment technical field, including recycling equipment and the air inlet pipe that is connected in recycling equipment, the movable installation of arc cover has on the pipe body of air inlet pipe, the inner wall equidistance fixed with a plurality of fixed plate of arc cover, the one side of fixed plate is provided with filter screen, and the surface of filter screen is provided with screw hole, and the fixed plate is connected with fixed bolt between screw hole, and the outside wall fixedness of arc cover has two and presents the symmetric distribution of inserting post, and the surface of inserting post is provided with limit hole, and the pipe body of air inlet pipe is provided with limit mechanism. The utility model discloses through the fixed filter screen in arc cover, makes the soot particle that the exhaust gas in recycling equipment can be intercepted by filter screen to the introduction of air inlet pipe, avoids its into recycling equipment and influences the service life of recycling equipment. And under the action of limit mechanism, it is helpful to realize the quick disassembly replacement of filter screen, guarantees the smooth filtration of soot.

The utility model provides a kind of multifunctional quenching device for aluminium bronze alloy heat treatment, belong to quenching device field, including support frame, hoisting assembly and cleaning component;Quenching box is placed in the inside of support frame, and the inside of quenching box is equipped with basket;The utility model: the top of support frame is equipped with mounting cover around, mounting cover is equipped with fume collecting cover inside, and negative pressure fan installed at the top of fume collecting cover makes after work that negative pressure is generated, and the negative pressure generated in fume collecting cover is convenient for airflow to flow to fume collecting cover inside, when high-temperature oil fume steam generated during quenching is inhaled into fume collecting cover inside, larger particle smoke dust particle is filtered by coarse filter screen inside fume collecting cover, and after filtration, flue gas is adsorbed by activated carbon filter screen, so that the fine grease particle in flue gas is reduced, so that the oil fume steam generated is filtered and handled, so that the scene environment satisfies operation, and personnel body damage is reduced.

The utility model discloses a novel underground building smoke exhaust equipment, including filter shell, one side surface of filter shell is fixedly connected with and has the smoke exhaust fan, the upper surface of filter shell is provided with the top, the upper surface of top is installed with the cleaning valve, the inner wall of filter shell is fixedly connected with two groups of installation clamping groove, the inside of each group installation clamping groove all is installed with filter assembly, and the cleaning pipe is equipped between two filter assemblies, the outer surface of cleaning pipe is fixedly connected with two groups of cleaning spray head, the outer surface of cleaning pipe is fixedly connected with the connecting pipe, and the top of connecting pipe penetrates top and is linked with the bottom of cleaning valve. The device is through two groups of detachable filter assembly and constitutes the ladder type filter system, and the combination design of filter frame and filter screen can effectively intercept the smoke dust particle of different particle sizes, and the dust risk of smoke exhaust fan is reduced significantly, and the long -time stable operation of equipment is guaranteed.