21results about How to "Reduce escape rate" patented technology

The invention discloses an air preheater anti-blocking method for reducing NH3 escape and SO3 content, and relates to the field of air preheater anti-blocking. Comprising the steps of step-by-step soot blowing optimization, dynamic soot blowing parameter adjustment, ammonia escape precise control, coal type bin-divided blending, combustion parameter optimization control and wall temperature increase treatment. According to the invention, step-by-step soot blowing strengthens removal of ash on the surface of the catalyst and reduces the ammonia escape concentration through fixed-point retention and dynamic adjustment; the ammonia escape detection system monitors and adjusts the ammonia spraying amount in real time to ensure that the ammonia escape concentration is lower than 3 ppm, and generation of NH4HSO4 is reduced; the SO3 generation amount is reduced through coal type bin-dividing blending and combustion parameter optimization control, and the blocking risk is restrained from the source; in the wall temperature increasing treatment, the wall temperature is increased to 210 DEG C or above in a circulating air bin heating and single-side temperature increasing mode, and coagulated materials are promoted to be gasified and fall off. According to the method, the problem of blockage of the air preheater is effectively solved, and the operation efficiency and stability of a boiler system are improved.

The present application relates to the field of lithium battery technology, and discloses an electrode assembly and an electrochemical device and an electronic device containing the same. The electrode assembly includes an anode electrode piece, a cathode electrode piece and a separator. The cathode electrode piece includes a cathode current collector and a first cathode covering layer arranged in a straight area of ​​the cathode current collector and a second cathode covering layer in a corner area. The conductivity of the second cathode covering layer is lower than the conductivity of the first cathode covering layer; or, the porosity of the corner area of ​​the separator is smaller than the porosity of its straight area. The electrode assembly of the embodiment of the present application improves the situation of lithium precipitation in the corner by optimizing the corner area of ​​the separator and / or the corner area of ​​the cathode electrode piece. Moreover, the present application only optimizes the corners, which will not have a significant impact on the overall performance of the battery cell.

The utility model discloses an ammonia gas stable combustion device which comprises a flame generator, an ammonia gas adding device and a pure oxygen adding device, the flame generator enables ignition fuel and oxygen to be mixed and combusted to generate flames, the ammonia gas adding device is used for adding ammonia gas to the outer side of the flames, the pure oxygen adding device is used for adding pure oxygen to the outer side of the ammonia gas, and the ammonia gas is stably combusted in a high-temperature area of the flames under the oxygen-enriched condition. According to the device, ignition fuel and oxygen are mixed and combusted to generate flames, the temperature of a high-temperature area of the flames reaches 2000 DEG C, ammonia gas and pure oxygen are heated and ignited, and the ammonia gas is high in combustion speed and not prone to flameout under the oxygen-enriched working condition, so that the ammonia gas can be stably combusted in the high-temperature area of the flames under the oxygen-enriched condition.

The present invention discloses a double delta wing static mixer, comprising at least one group of static mixing devices, the static mixing device comprising at least one double delta wing mixing unit, the double delta wing mixing unit comprising two horizontally arranged mixing monomers and two vertically arranged mixing monomers, the two horizontally arranged mixing monomers are symmetrically arranged with a first diagonal line, the two vertically arranged mixing monomers are symmetrically arranged with a second diagonal line, and the tips of the two horizontally arranged mixing monomers and the two vertically arranged mixing monomers are all intersected at one point. A method for mixing gas is also disclosed. The double delta wing static mixer of the present invention has a simple structure, is easy to arrange, has a good gas mixing effect, has a small resistance, has a small impact on the original flow field in the flue, and is suitable for project transformation.

The utility model discloses a kind of for preventing and treating field pest light and sex lure combination's trapping device, specifically related to field pest trapping technical field, including bottom plate, the bottom plate lower end is equipped with universal wheel, the bottom plate upper end is fixedly connected with pillar one, the pillar one upper end is fixedly connected with light trapping assembly, the pillar one outer surface is fixedly connected with several sex trapping assembly.The utility model said a kind of for preventing and treating field pest light and sex lure combination's trapping device, by the light trapping assembly of design, can be attracted into device by the light of specific wavelength emitted by attractant lamp, and be electrocuted by electric network, reach the purpose of prevention and treatment, and for the collection box for containing pest, can be detached from device, facilitate to clean the pest therein, can prevent pest carcass accumulation at electric network, avoid electric network short-circuit etc. Problem, ensure that light attraction and electrocution function long-term effective.

This application relates to the field of dust removal equipment technology, specifically disclosing a dust removal device for catalyst powder batching and mixing, including a mixer and an installation platform. The mixer is fixedly installed on one side of the installation platform, and four sets of telescopic rods are spaced apart on the installation platform. The telescopic ends of the four sets of telescopic rods are hinged to a vibrating screen plate, and the four sets of telescopic rods are respectively hinged to the four corners of the vibrating screen plate. A feed pipe is provided at the upper end of the mixer, and the end of the vibrating screen plate near the mixer is located directly above the feed pipe. A vibrating screen assembly and a collection assembly are provided on the installation platform. The catalyst raw material is added to the vibrating screen plate. The vibrating screen assembly in this application can make the vibrating screen plate rise and fall along the telescopic direction of the telescopic rods, thereby realizing the vibration and screening of the catalyst raw material and reducing the dust generated during mixing. The collection assembly on the installation platform can collect the dust screened out, reducing the dust escape rate. The catalyst raw material after vibration and dust removal can be added to the mixer through the feed pipe for mixing.

The invention belongs to the technical field of biology, and particularly relates to preparation and application of a swine A type FMDV VP1 antigen and single factor positive serum. The sequence of the expression gene of the swine A type FMDV VP1 antigen is as shown in SEQ ID NO. 1. Through the integral technical scheme of combining sequence-driven conservative site screening, expression and immunological verification, the key problems of antigen mismatch, difficult recombinant protein expression, poor diagnostic reagent universality and the like in the prior art are solved; and the effectiveness and generalizability of the vaccine, the diagnostic reagent and the monitoring means in practical application are obviously enhanced.

The utility model relates to a closed lateral flow guide belt feeder, including the dust cover of cover conveying belt and the vertical feed pipe of going into dust cover, dust cover is arranged to the opening of one end along the direction of conveying belt progress, the lower end of feed pipe realizes the plugging through sealing bottom plate, and the side wall of feed pipe along the direction of conveying belt progress is opened and has the discharge port on, and the lower end of discharge port and the upper end surface of sealing bottom plate exist the height difference, and the material is discharged along the belt movement direction through the lateral opening, and the impact speed is greatly slowed down, and the generation amount of dust is significantly reduced, and simultaneously, the effect of sealing bottom plate buffer and material accumulation buffer layer avoids direct impact and friction belt, alleviates equipment wear and tear, prolongs the service life of belt, and more through the direct puncture risk of foreign matter of material self -accumulation relief, prevents the occurrence of belt tearing from the source, and the structure gives consideration to the discharge flow smoothness, sealing reliability and maintenance convenience, and the overall environmental protection, safety and economy of system are improved.

The present application relates to a video call method, a storage medium, an electronic device and a computer program product, the video call method comprising: when the electronic device makes a video call based on a target application, in a first time period, obtaining a first video image output by a camera module, and in the first time period, the device temperature of the electronic device is a first temperature value; displaying a second video image on a first video call interface, and the second video image is obtained by performing a preset beautification effect processing on the first video image; in a second time period, obtaining a third video image output by the camera module, and in the second time period, the device temperature of the electronic device is a second temperature value, the resolution of the third video image is less than the resolution of the first video image, and the second temperature value is greater than the first temperature value; and displaying a fourth video image on the first video call interface, and the fourth video image is obtained by performing a preset beautification effect processing on the third video image.

The utility model discloses a stone removing winnowing machine which comprises a machine frame, a fan assembly, an electromagnetic feeding assembly, a dust blocking cover, an air plate adjusting assembly, a negative pressure dust removing system and a discharging opening. A cover plate is fixed on the top surface of the rack, and the upper half section of the rack is divided into two parts by mounting a longitudinal connecting partition plate: one side is a fan mounting chamber, and the other side is a winnowing chamber; the electromagnetic feeding assembly and the dust blocking cover are mounted on the cover plate and are arranged close to the fan mounting chamber; one end of the electromagnetic feeding assembly is arranged in the dust blocking cover; a blanking opening is formed in the cover plate in the dust blocking cover; the fan assembly is arranged in the fan mounting chamber, and an air outlet of the fan assembly is communicated to the front end of the winnowing chamber through an air guide pipe; side plates A are arranged on two symmetrical sides of the winnowing chamber, and the other side of the winnowing chamber is communicated with the negative pressure dust removal system; the air plate adjusting assembly is arranged in the winnowing chamber. Tea winnowing is completed through feeding of the electromagnetic feeding assembly, airflow generation and guiding, winnowing separation, negative pressure dust removal and discharging, the structure is compact, and the stone removal rate is high.

This invention belongs to the field of biomedical experimental equipment and provides a biological X-ray irradiation cage specifically for laboratory mice. It includes a cage bottom cover with an open cage box cover. A fixed central axis assembly is provided between the bottom cover and the cage box cover. The fixed central axis assembly includes a fixed shaft rotatably mounted on the cage box cover, and several partitions are arranged circumferentially on the fixed shaft. This invention uses a fixed cage to fix the relative positions of the animals in each irradiation location to the irradiation unit, ensuring that the irradiated animals receive equal irradiation distances within the conical radiation area generated by the irradiation unit. The cage height is set to match the body thickness range of the laboratory mice, and partitions are placed between each animal to ensure stable posture, preventing them from standing or stacking, and keeping them at the same horizontal level from the radiation source, achieving consistent irradiation doses and ensuring objective and accurate experimental results.

According to the flue gas denitration and decarburization system, raw flue gas and hot air are directly mixed to increase the temperature of the raw flue gas, so that the flue gas denitration and decarburization system is not influenced by the temperature of the raw flue gas, the amount of the mixed hot air can be adjusted according to requirements, the flue gas temperature is ensured to reach the optimal denitration and decarburization range, and the adaptability of the whole system to the raw flue gas is improved; the desulfurization and denitrification efficiency is further ensured; meanwhile, the high-low temperature fluid mixer is arranged on the raw flue gas conveying pipeline and used for mixing the raw flue gas and the hot air, the uniformity of the mixed gas is improved, and therefore the uniformity and stability of the temperature of the mixed gas entering the denitration and decarbonization chamber are guaranteed, and the denitration and decarbonization effect is effectively improved.

This invention discloses a static mixer and an SCR flue gas denitrification ammonia injection mixing system. The static mixer is installed in the flue and includes multiple static mixing components, a groove, and a second row of ash pipes. Each static mixing component includes: a narrowing section, which is a hollow tubular structure with an upper opening area smaller than its lower opening area; a guide section located above the narrowing section; and at least one turbulence section, which is a concave hollow structure with an upper opening located below or inside the narrowing section, with its bottom connected to the first row of ash pipes. The first row of ash pipes is used to discharge dust from the turbulence section into the flue. This invention can improve the uniformity of ammonia mixing with flue gas while removing dust from the flue gas, thereby mitigating blockage of ammonia nozzles, catalyst bed pores in flue gas denitrification technology, and downstream equipment, thus reducing ammonia escape and effectively overcoming a series of problems caused by ammonia escape.

The utility model provides a denitration VOC (volatile organic compound) integrated device which comprises a combustion chamber and a plurality of heat storage chambers communicated with the combustion chamber, an air inlet branch pipe, an exhaust branch pipe and a purging branch pipe are arranged at the bottom of the heat storage chamber; a low-nitrogen combustor is arranged at the top of the combustion chamber; a first-stage heat accumulator, a reducing agent spraying opening, an SCR device and a second-stage heat accumulator are sequentially arranged in the heat accumulation chamber from top to bottom; scavenging valves are arranged on the air inlet branch pipe and the exhaust branch pipe; according to the integrated RTO device disclosed by the utility model, denitration VOC is integrated into the integrated RTO device, so that the occupied area is saved; mutual abrasion between the catalyst and the heat storage bricks is avoided; the overall service life of equipment is prolonged; the low-nitrogen combustor reduces NOX generation from the source, the catalyst load of the SCR module is reduced, the catalyst activity attenuation rate is slowed down, the ammonia escape rate is effectively reduced, and secondary pollution is avoided.

The utility model discloses a device for killing harmful bacteria of pollen of fruit trees, which comprises an ozone box, an air inlet is arranged on one side of the ozone box, and the ozone box is provided with an ozone generator; the upper port and the lower port of the four-way connecting piece are respectively connected with the powder storage tank and the discharging mechanism, and one of the left port and the right port is communicated with the air outlet of the ozone box; the sterilization chamber is provided with a plurality of ultraviolet sterilization lamp tubes, and an inlet of the sterilization chamber is communicated with the other one of the left port and the right port of the four-way connecting piece; an inlet of the cyclone separator is communicated with an outlet of the sterilization chamber, and a powder storage bottle is arranged at the bottom; an inlet of the pollen recovery filter box is communicated with an outlet of the cyclone separator, a filter layer is arranged in the pollen recovery filter box, and the bottom of the pollen recovery filter box is communicated with an exhaust system. The pollen sterilization device is simple in structure and convenient to assemble, two-stage sterilization of ozone and ultraviolet rays on pollen can be achieved through the ozone box and the sterilization chamber, the pollen recovery filter box is arranged and matched with an internal filter layer, the loss rate of the pollen can be effectively reduced, and the pollen escape rate can be greatly reduced.

The application discloses an aviation oil volatile gas recovery condensing device, and relates to the technical field of volatile gas recovery.The device comprises an oil storage barrel, an integrated fixing module is connected to the top of the inner cavity of the oil storage barrel, and a motor, a gas suction mechanism, a condensing mechanism, a liquid driving conveying mechanism and an oil gas recovery mechanism are installed in the integrated fixing module.The application further discloses a recovery method based on the gas recovery condensing device.The application adopts the vortex tube principle to cool and condense the volatile gas, does not need to additionally configure an electric refrigeration device, reduces the device energy consumption and operation cost, and is compact in structure, free of easily-damaged electric control components and low in failure rate, and is suitable for aviation oil storage and other scenes with high anti-explosion requirements.The device simultaneously drives the gas suction fan blade and the liquid pumping mechanism through the motor, realizes "one source and double driving", and does not need to additionally increase a power source.

This utility model discloses a pretreatment device for low flash point organic waste liquid, relating to the field of waste liquid treatment. It includes a mounting frame on which a primary filter, a secondary filter, and a tertiary filter are fixedly mounted. A second connecting pipe is fixedly connected between the output end of the primary filter and the input end of the secondary filter. A pneumatic diaphragm pump is fixedly mounted on the mounting frame. An input pipe is fixedly connected between the output end of the secondary filter and the input end of the pneumatic diaphragm pump, and an output pipe is fixedly connected between the output end of the pneumatic diaphragm pump and the input end of the tertiary filter. By setting inlet and outlet pipes, this device can directly draw organic waste liquid from the inside of a ton container containing organic waste liquid without emptying it from the waste liquid tank. After multi-stage filtration, the waste liquid is then transported to the empty ton container, significantly reducing the possibility of waste gas escape during the transfer process and ensuring the safety of the production environment.

This utility model relates to the field of cleaning equipment technology and discloses a surface cleaning device with a bidirectional dust-raising and sealing structure. It includes a floor brush body with an air duct suction port at its bottom. The bidirectional dust-raising and sealing structure is located at the bottom of the floor brush body and includes a forward dust-raising and sealing component and a reverse dust-raising and sealing component, both of which are in contact with the cleaning surface. The forward dust-raising and sealing component is located in front of the air duct suction port, and the reverse dust-raising and sealing component is located behind the air duct suction port. By setting forward and reverse dust-raising and sealing components on the front and rear sides of the air duct suction port respectively, the floor brush can effectively contact the cleaning surface during both forward and reverse movements, ensuring that the complete process of dust raising, sealing, and suction is completed in both directions, thus overcoming the deficiency of traditional floor brushes that only effectively clean in one direction.

The application discloses a static adsorption type plastic and metal solid waste grading separation device, and relates to the technical field of solid waste separation.The device comprises a grading box, a first fixed plate is fixedly connected to the bottom end of the grading box, a spring is fixedly connected to the bottom outer wall of the first fixed plate, a table plate is fixedly connected to the end of the spring away from the first fixed plate, a suction box and a support frame are fixedly connected to the bottom of the table plate; a grading screening assembly is arranged in the grading box; a dust collection assembly for adsorbing metal particles and a discharge assembly for releasing voltage are arranged in the suction box.In the application, the grading separation mode of "grading screening combined with large-particle-size air separation and small-and-medium-particle-size static adsorption" is adopted, so that efficient separation of solid wastes with different particle sizes and different materials is realized, and the structure linkage design of screening, air separation and static adsorption greatly improves the separation efficiency and purity, and meets the use requirement of people.