53results about How to "Simple equipment" patented technology

The invention belongs to the field of photovoltaic glass coatings, and particularly relates to a super-hydrophilic anti-reflection wear-resistant self-cleaning coating for room-temperature curing of photovoltaic glass, which takes nano silicon dioxide sol as a main film-forming agent to cure and form a film and comprises the following raw materials in parts by weight: 55-90 parts of deionized water, 9-20 parts of nano silicon dioxide sol, 1-10 parts of a silane coupling agent and 0.001-1 part of nano titanium dioxide. The coating is prepared from the following components in parts by weight: 0.01-1 part of a surfactant, 0.01-1 part of modified polyvinyl alcohol, 0.01-1 part of water-based acrylic resin, 0.001-1 part of an antistatic agent, 1-5 parts of a curing agent, 1-5 parts of a flatting agent and 0.1-1 part of a wear-resistant agent. The super-hydrophilic anti-reflection wear-resistant self-cleaning coating has super hydrophilicity, the water contact angle is below 10 degrees, the hydrophilicity, the antistatic property, the anti-reflection property, the wear resistance and other properties of glass can be remarkably improved, and when the super-hydrophilic anti-reflection wear-resistant self-cleaning coating is applied to photovoltaic module glass, the photoelectric conversion efficiency in photovoltaic power generation can be improved.

The invention provides a platinum-carbon catalyst as well as a preparation method and application thereof, and relates to the technical field of catalysts. The platinum-carbon catalyst is prepared from the following raw materials: a carbon carrier, a platinum precursor and ethylene glycol, wherein the ethylene glycol is simultaneously used as a solvent and a reducing agent. The preparation method comprises the following steps: carrying out heat treatment on the carbon carrier; taking a platinum precursor, ethylene glycol and the carbon carrier subjected to heat treatment, mixing, stirring and performing ultrasonic treatment to obtain a mixed material; adjusting the pH value of the mixed material, and then raising the temperature for reaction; and filtering, washing and drying the reactant in sequence to obtain the product catalyst. A reducing agent and a protective agent do not need to be additionally added in the preparation process, so that the production cost is reduced; meanwhile, the technological process is optimized, operation is easy, waste and loss caused by slurry transfer are avoided, and the product catalyst is good in particle uniformity, uniform in dispersion, excellent in performance and capable of being applied to preparation and assembly of fuel cell products.

The invention discloses a platinum-nickel loaded molybdenum carbide / molybdenum dioxide nano composite material and a preparation method and application thereof.The platinum-nickel loaded molybdenum carbide / molybdenum dioxide nano composite material is prepared by the steps that firstly, metal molybdenum salt and a coordination agent serve as raw materials, a Mo2C / MoO2 substrate material containing heterojunctions is prepared, then PtNi is loaded on the Mo2C / MoO2 substrate material, and the platinum-nickel loaded molybdenum carbide / molybdenum dioxide nano composite material is prepared. Wherein the PtNi alloy is well anchored by the MoO2 / Mo2C nano material carrier, the catalytic stability of the material is further improved, and the reactivity of active sites can be enhanced by the electron coupling and interface synergistic effect provided by a heterogeneous interface, so that the catalytic performance of the material can be developed to the greatest extent; meanwhile, the application cost of hydrogen production under the acidic condition is further reduced. Experimental results show that the platinum-nickel loaded molybdenum carbide / molybdenum dioxide nano composite material has the advantages of high catalytic activity, excellent stability and the like when being used as a hydrogen production electrocatalyst of an acidic electrolyte, so that the platinum-nickel loaded molybdenum carbide / molybdenum dioxide nano composite material has a wide application prospect.

The invention discloses a method for extracting cesium from salt lake brine. The method comprises the following steps: step 1, carrying out saponification reaction, and centrifugally standing for layering; step 2, adjusting the pH value of the salt lake brine, and putting the salt lake brine into a reaction container for extraction; step 3, washing until the concentration of the organic solution containing the cesium element is less than 0.01 g / L; step 4, carrying out back extraction; and 5, impurity removal is conducted on a cesium-containing reverse extraction phase obtained after reverse extraction. The method has the advantages that the salt lake brine is extracted through the saponified organic phase, the alkali liquor consumption is very small and can be recycled, meanwhile, addition of a large amount of strongly alkaline substances into the organic phase is avoided, environment pollution caused by generation of a large amount of waste alkali liquor is avoided, the production cost and the treatment cost are reduced, the treatment capacity is large, the process and equipment are simple, investment is small, and the method is suitable for industrial production. And continuous production is easy to realize.

The invention relates to the technical field of high-temperature infrared stealth resin-based composite materials, and particularly discloses a resin-based heat-proof composite material coated with a low-temperature curing high-temperature infrared stealth coating on the surface, which sequentially comprises a resin-based heat-proof composite material and a high-temperature infrared stealth coating from inside to outside, according to the high-temperature infrared stealth coating, nano metal and flaky metal powder serve as low-emissivity filler, and a glass phase and organic resin serve as binding phases. The preparation method of the composite material has the characteristics of low cost and low energy consumption, and the damage to the resin-based heat-proof composite material is reduced. The high-temperature infrared stealth coating on the surface of the composite material has the characteristics of wide temperature range, low emissivity and high combination, so that falling and stripping of the high-temperature infrared stealth coating caused by decomposition of the composite material in a use environment are avoided, and the stealth problem of an aircraft in a wide temperature range is solved.

The invention discloses a preparation method and application of a multifunctional antibacterial organic silicon coating. The multifunctional antibacterial organic silicon coating is prepared by taking a double-bond-containing silane coupling agent, a double-bond-containing flame-retardant monomer and a double-bond-containing quaternary ammonium salt as main raw materials through free radical polymerization. The prepared multifunctional antibacterial organic silicon coating solution can be sprayed, spin-coated or brushed on the surface of a material, and a long-acting antibacterial multifunctional organic silicon coating material is formed after drying. The multifunctional coating material has the advantages of being excellent in hydrophobicity, fireproof, flame-retardant, long-acting and lasting in antibiosis and the like, and is widely applied to medical protection articles, medical dressings, hygienic products, electronic medical treatment and textiles. The multifunctional antibacterial organic silicon coating provided by the invention can be applied to long-acting antibiosis of the surfaces of natural materials, high polymer materials and metal materials, the preparation method of the coating has small damage to a base material, the base material adaptability is wide, and the antibacterial effect is excellent, durable and stable.

The utility model discloses a waste salt electrochemical treatment system which comprises a salt dissolving tank, a regulating tank, an electric flocculation device, a sedimentation tank, an electrocatalytic oxidation device, an MVR (mechanical vapor recompression) evaporator, a centrifugal machine and a drying box which are sequentially connected in series, the salt dissolving tank is provided with a waste salt inlet and is further connected to the MVR evaporator, the regulating tank is further provided with an acid liquor and alkali liquor inlet, and the centrifugal machine is further connected to the drying box. Based on the advantages and characteristics of the electrochemical catalytic oxidation reaction, the high-efficiency degradation of organic matters in waste salt is realized, different current conditions can be changed according to the concentration of the organic matters, the waste salt can be recycled, and the treatment efficiency is improved. And long-period stable operation can be achieved, and good economic benefits and environmental protection benefits are achieved.

The invention discloses a ground debugging device and method for a ram air turbine assembly, relates to the field of debugging equipment for the ram air turbine assembly, and aims to solve the technical problems that in the prior art, the debugging structure of the ram air turbine assembly is complex, and the precision control difficulty is high. The debugging device comprises a bearing box body, an oil tank is arranged in the bearing box body, the oil tank is connected with a hydraulic oil supply birdmouth and a pressure relief birdmouth of the assembly to be debugged through a pressure pump and a hose on the pressure pump, and a stop valve is arranged on the hose. According to the debugging method, the device is used, and the rising and falling function of the ram air turbine is tested by operating the stop valve. The device and method are independent of an aircraft hydraulic system, more flexible debugging work is achieved, meanwhile, the requirement for operators is lowered, and fine adjustment is achieved.

A preparation method of the functionalized hydrothermal carbon comprises the following steps: carrying out carbonization reaction on bamboo powder and a hydrochloric acid solution by adopting a hydrothermal carbonization method, adding alkali liquor into a product obtained by the reaction, stirring, filtering, washing with water until filtrate is neutral, and drying to obtain the functionalized hydrothermal carbon. Hydrothermal bamboo charcoal is obtained; the preparation method comprises the following steps: putting dichloromethane and 1-vinyl imidazole into a reaction kettle to react, and obtaining a monomer N, N '-methylene-bis (1-(3-vinyl imidazole)) chlorine (DVim-Cl) after the reaction is completed; taking the hydrothermal bamboo charcoal and DVim-Cl, adding an initiator and a solvent, and putting the mixture into a reaction kettle for heating reaction to obtain a target compound. The prepared sustained-release agent can effectively load herbicides, has good herbicidal activity, the maximum loading capacity can reach 565 mg / g, the loading rate reaches 36.1%, and the sustained-release agent has good application prospects in the field of pesticide sustained release.

The invention discloses a method for preparing a modified polytetrafluoroethylene membrane for adsorbing metal ions, comprising the following steps: weighing a monomer: acrylic acid, a crosslinking agent: di(methacryloyloxyethyl) hydrogen phosphate, thionyl chloride, a photoinitiator and an antioxidant in a certain proportion and completely dissolving them in a solvent for standby use; transferring the polytetrafluoroethylene flat membrane to the above solution system and soaking it for a certain period of time; using a plasma surface treatment machine to treat the soaked polytetrafluoroethylene flat membrane, and then photocuring it by ultraviolet light for a period of time to obtain a modified polytetrafluoroethylene flat membrane. The invention uses a hydrophilic monomer and a hydrophilic crosslinking agent, and in the cooperation of a solvent, obtains a modified polytetrafluoroethylene membrane with good water wetting effect, and after being subjected to external friction, the grafted hydrophilic polymer is not easy to fall off, and is easy to industrialize.

A sheet humidifying device, a method, and a cardboard sheet manufacturing device are provided with: a pre-heating roll (31) that has an outer peripheral surface on which a corrugating medium (B) is wrapped; and a humidified water jetting device (70) that jets humidified water onto the outer peripheral surface of the pre-heating roll (31) on which the corrugating medium (B) has not been wrapped.

This invention discloses a method for preparing ultrathin titanium oxide nanosheets rich in oxygen and titanium vacancies, comprising: (1) using titanium oxide nanosheets as raw materials, obtaining a single-layer titanium oxide nanosheet suspension after exfoliation; (2) after drying the single-layer titanium oxide nanosheet suspension, annealing it in air, cooling it to room temperature, and then placing it in a reactor heated to 500-750°C, and introducing a mixed gas composed of hydrogen and carrier gas into the reactor, keeping it at this temperature for a period of time, and then rapidly cooling it to room temperature to obtain ultrathin titanium oxide nanosheets rich in oxygen and titanium vacancies. The preparation method disclosed in this invention is simple and controllable; the product obtained is anatase-type ultrathin titanium oxide nanosheets with a complete and uniform surface, no particulate matter, a thickness of no more than 2 nm, but a large lateral size; the product is also rich in both oxygen and titanium vacancies, and the vacancy content can be effectively controlled, which is expected to be used as a high-efficiency catalyst.

The present invention relates to a method for characterising batteries, comprising: obtaining simplified characterisation parameters (RAC,RDC_30) of a battery pack to be characterised to estimate the capacity of the battery and its internal resistance; and applying said simplified characterisation parameters (RAC,RDC_30) to predetermined models that calculate the capacity and internal resistance based on approximations and predetermined model parameters. To determine the model parameters, detailed characterisation parameters (C, RDC_i,RAC) are obtained from a previous battery pack, to adjust model parameters. A statistical analysis comparing simplified characterisation parameters (RAC,RDC_30) with the detailed characterisation parameters (C, RDC_i,RAC) allows determining if the batteries to be characterised can be characterised through previous battery models or if they should be subjected to a detailed characterisation.

The invention relates to a surimi antifreeze fresh-keeping agent and a production method thereof, and the surimi antifreeze fresh-keeping agent is prepared from the following raw materials: traditional fermented sour porridge and / or lactobacillus acidophilus pure fermented sour porridge. The invention also comprises a production method of the surimi antifreeze preservative. The raw materials are low in cost and easy to obtain, the technological process and equipment are simple, the surimi antifreeze preservative is suitable for large-scale production, the product safety is good, and the prepared surimi antifreeze preservative is suitable for frozen storage and preservation of surimi and has good antifreeze and preservation effects.

The invention relates to the technical field of food processing, in particular to a preparation method and application of sunflower seed protein. The preparation method comprises the following steps: mixing sunflower seed meal with an aqueous two-phase solvent, and then carrying out constant-temperature extraction, dialysis, alkali extraction and acid precipitation treatment; the aqueous two-phase solvent is a mixed solution of ammonium sulfate and an ethanol water solution. According to the preparation method, the content of chlorogenic acid in the sunflower seed meal can be reduced, the defect that browning is serious in the sunflower seed protein extraction process is overcome, the quality of the sunflower seed protein is improved, further application of the sunflower seed protein in the field of food processing is promoted, and therefore the economic value of bulk crops is increased.

The present invention discloses a high-performance insoluble sulfur production system and method. The insoluble sulfur wet production system can be used to produce high-performance insoluble sulfur products through the combination of sulfur polymerization, quenching, crushing, aging, extraction, drying, oil filling and other units. The production system of the present invention is a liquid phase environment, which avoids safety problems such as system blockage and powder explosion caused by solid or powder material transportation. The production process has the characteristics of safety and reliability, simple equipment and operation, and obvious energy saving effect.

The utility model provides a phosphorus and fluorine-containing sludge treatment system which comprises pulping equipment, reaction equipment and washing equipment, the pulping equipment is provided with a phosphorus and fluorine-containing sludge feeding port, a phosphoric acid dihydrate feeding port and a mixing and stirring mechanism; a pulp outlet pipe of the pulping equipment is connected to the reaction equipment, a gas phase pipeline of the reaction equipment is connected to a gas inlet of the washing equipment, the washing equipment is provided with a liquid phase circulating pipeline and a gas phase emptying pipe, the system further comprises a fluosilicic acid tank collecting tank, and a liquid outlet of the washing equipment is connected to the fluosilicic acid tank collecting tank; and a liquid phase discharge pipe of the reaction equipment is connected to a wet-process phosphoric acid section. The system provided by the utility model has the advantages of simple required equipment, lower cost, capability of respectively recycling phosphorus and fluorine in the sludge containing phosphorus and fluorine while treating the sludge containing phosphorus and fluorine, capability of turning waste into wealth, economy, environmental protection, continuous operation and high treatment efficiency.

The application discloses a method and system for generating a generative adversarial point cloud completion network based on multi-view projection profiles, and the method comprises the following steps: S1, collecting plant point clouds without self-occlusion structure; S2, performing non-rigid transformation on the plant point clouds to obtain plant point cloud data with self-occlusion, and adding labels to the plant point clouds corresponding to the classified plant parts; S3, extracting multi-view profile projection images of each plant point cloud to obtain occluded areas and non-occluded areas corresponding to complete point clouds; S4, inputting incomplete point clouds into a multi-resolution feature encoder to fuse and establish feature codes with missing areas; S5, inputting the feature codes of the incomplete point clouds into a generator of a generative adversarial network for point cloud completion to predict missing areas corresponding to the point clouds; and S6, using multi-view projection profiles of real missing areas to constrain the prediction results, and then inputting the constrained point clouds into a point cloud and profile discriminator of the generative adversarial network for point cloud completion to perform adversarial training and optimize network parameters.

The invention relates to the technical field of polymer elastomer materials, and discloses a TPE (thermoplastic elastomer) material for sealing an IC (integrated circuit) packaging tube and a preparation method of the TPE material, and the TPE material for sealing the IC packaging tube comprises the following raw materials in parts by weight: 25-35 parts of rubber, 25-35 parts of mineral oil, 20-30 parts of resin, 5-15 parts of mineral filler, 1-1.5 parts of a lubricant, 0.2-0.3 part of an antioxidant and 0.3-0.5 part of an ultraviolet light absorber. The TPE material prepared by the invention has excellent elasticity and heat resistance, can be suitable for complex and changeable packaging environments, and effectively prevents the problem of material aging caused by ultraviolet erosion, thereby ensuring the safety of IC packaging tubes in transportation and storage processes; the preparation method provided by the invention adopts simple equipment and process, and leftover materials generated in the production process can be repeatedly utilized, so that the material cost is further saved, and the resource utilization rate is improved.

The present invention relates to the field of carbon nanotube structure control preparation, specifically a method for preparing double-walled carbon nanotubes in large quantities with high purity and high crystallinity. The floating catalyst chemical vapor deposition method is adopted, and the catalyst nucleation is promoted by introducing an appropriate amount of nitrogen into the reaction system, the catalyst quantity and size are adjusted, and a catalyst with uniform particle size is prepared. The nucleation ratio of double-walled carbon nanotubes can be increased by combining the growth kinetics process control, and the growth rate and yield of double-walled carbon nanotubes can be increased by optimizing the carbon source supply rate in the tubular reactor. The carbon nanotubes have high crystallinity, an oxidation decomposition temperature range of 700 to 920°C, a catalyst content of less than 6wt%, and a double-walled carbon nanotube macrobody of 500 cubic centimeters per hour is produced in a 6.5 cm diameter tubular reactor. The present invention realizes the large-scale preparation of double-walled carbon nanotubes with high purity and high crystallinity, which is of great significance to promoting the practical application of double-walled carbon nanotubes in the fields of structural functional fibers, composite materials, multifunctional braids, electronic devices, etc.

The present invention discloses a comprehensive dealkalization method for vanadium-extracting waste slag, which comprises mixing the vanadium-extracting waste slag with a calcium additive, a carbonaceous reducing agent and sodium nitrite to form a ball, adopting a roasting process to decompose the sodium-containing solid solution in the vanadium-extracting waste slag, and leaching the sodium-containing phase in the waste slag through a hydrothermal leaching process to achieve the purpose of dealkalization. The leached slag is dried to obtain a sodium-free iron-containing material, which is recycled for use in the ironmaking process, and the leaching liquid is subjected to multi-effect evaporation to form a sodium-containing product, which can be directly exported. The process equipment of the present invention is simple and easy to operate, and the vanadium-extracting waste slag can be recycled within the steel enterprise. At the same time, the process has high energy utilization, less environmental pollution, and low operation and maintenance costs, and can realize large-scale recycling of vanadium-extracting waste slag, with good economic and social benefits.

The present invention provides a fluorinated lithium sulfonate electrolyte mother liquor and a preparation method and application thereof. The preparation method comprises the following steps: reacting a halogenated sulfonyl and a lithiation agent in an organic solvent, and limiting the lithiation agent to include any one of lithium hydroxide, lithium bicarbonate or lithium carbonate or a combination of at least two thereof, so that the generated lithium fluoride sulfonate is directly dissolved in the organic solvent to obtain the fluorinated lithium sulfonate electrolyte mother liquor. The preparation method is simple to operate, and the raw materials used are low in price and low in danger. The prepared fluorinated lithium sulfonate electrolyte mother liquor has high purity of lithium fluoride sulfonate and low Cl content. ‑ and SO4 2‑ The low content provides a new idea for the preparation of fluorinated lithium sulfonate electrolyte.

The invention provides a method for separating granular organic matters and mineral binding organic matters in soil, which comprises particle size separation and density separation, and the separation of the granular organic matters and the mineral binding organic matters in the soil is realized by combining the particle size separation and the density separation. The invention discloses a separation device for soil granular organic matters and mineral binding organic matters. The separation device structurally comprises a soil-water mixing module, a screen, a wet screen monitoring module, a fine aggregate collecting box and a density grading pretreatment module, the soil-water mixing module is located above the screen and the wet screening monitoring module, and the screen is arranged between the soil-water mixing module and the wet screening monitoring module to achieve particle size grading of soil particles. The fine aggregate collecting box is located below the wet screening monitoring module, and the fine aggregate collecting box is mounted at the top of the density grading pretreatment module; according to the method, experimental errors caused by only adopting a single particle size grading method or a single density grading method are effectively avoided.

The invention discloses a cordyceps militaris liquid strain large-scale culture method, cordyceps militaris cultured by the cordyceps militaris liquid strain large-scale culture method and application of the cordyceps militaris liquid strain large-scale culture method, and belongs to the technical field of cordyceps militaris. The large-scale culture method of the cordyceps militaris liquid strain comprises the following steps: adding a liquid culture medium into a liquid strain fermentation tank, inoculating the cordyceps militaris strain according to 3-5% of the weight of the culture medium, and keeping the tank pressure at 0.05-0.07 MP; filtering air is continuously introduced, and the ventilation volume is 0.3-0.5 m < 3 > / h; the fermentation time is 72 to 84 hours; the cordyceps militaris strain is a cordyceps militaris strain CICC14014, a cordyceps militaris strain CICC14015 and / or a cordyceps militaris strain CICC14013. According to the method, the cordyceps militaris strain with vigorous hyphae, moderate sporocarp density, high yield and high cordycepin content is obtained by limiting the culture process, namely the composition of the culture medium, the strain inoculation amount, the ventilation amount and the fermentation time.

The invention provides a lithium manganese iron phosphate material and a preparation method thereof. The preparation method comprises the following steps: S1, sanding raw materials comprising an iron source, a first manganese source, a second manganese source, a third manganese source and a phosphorus source to obtain a sanded material; s2, mixing the sanded material with a carbon source to obtain a mixture; s3, spraying the mixture to obtain a spraying material, and mixing the spraying material with a lithium source to obtain a mixed lithium yellow material; s4, sequentially performing heat treatment and crushing on the mixed lithium yellow material in an inert atmosphere to obtain a lithium manganese iron phosphate material; wherein the first manganese source is an inorganic water-soluble manganese compound, the second manganese source is an organic manganese source, and the third manganese source is manganese oxide. The preparation method provided by the invention not only has low requirements on a sand mill, but also does not generate high energy consumption caused by a two-step process, that is, the preparation method and equipment of the lithium manganese iron phosphate material provided by the invention are simple, the cost is lower, and industrial large-scale production can be more favorably realized.

The invention discloses a separated long-distance focus-adjustable laser dazzling device and method. The laser dazzling device comprises a laser and an emission window. The laser device is separated from the emission window, the laser device and the emission window carry out light transmission through an energy transmission optical fiber, and a laser beam of the laser device is emitted outwards through the emission window. The beneficial effects of the invention are that the laser and the emission window are designed in a separated manner, and are connected with each other through the flexible armored optical fiber and the cable, so that the maintenance difficulty is small, and multi-platform equipment such as vehicle-mounted, airborne, shipborne, permanent positions and the like is facilitated.

The application provides a titanium cable locking buckle with low friction coefficient and a preparation method thereof, relates to the field of medical metal materials and medical devices, and the titanium cable locking buckle is prepared from a medical titanium alloy, and the chemical components of the titanium alloy are as follows in percentage by weight: Al: 5.6-6.3 %, V: 3.6-4.5 %, Cu: 4.6-5.9 %, and Ti: the balance. The titanium alloy is processed into the titanium cable locking buckle through a special process, so that the friction coefficient of the titanium cable locking buckle is further reduced under the condition that the titanium cable locking buckle has excellent tissue compatibility and high plasticity, and the problem of fracture in the use process is prevented; meanwhile, the titanium cable locking buckle can inhibit the formation of bacterial biofilm of methicillin-resistant Staphylococcus aureus on the surface of the titanium cable locking buckle.

The invention discloses a pyrene dimer variable-temperature fluorescence sensing material with a V-shaped structure. The material has excellent temperature sensitivity and fluorescence response characteristics. The pyrene dimer is of a V-shaped structure formed by two pyrene molecules in a specific chemical bonding mode, and the fluorescence property of the pyrene dimer is remarkably changed when the temperature changes. Specifically, at 80K, the material shows relatively strong fluorescence emission at 500nm, and at the moment, the material shows yellow; along with the rise of the temperature, the fluorescence intensity of the material at 500nm is gradually attenuated, and the fluorescence intensity at 600nm is increased, and at the moment, the color of the solution is red. This phenomenon originates from intermolecular interactions and temperature dependent changes in intramolecular electron transfer. By adjusting the molecular structure and the synthesis condition of the pyrene dimer, the temperature response range and the fluorescence characteristic of the pyrene dimer can be accurately controlled. The material has a wide application prospect, especially in the fields of temperature sensing, temperature monitoring, intelligent temperature control equipment and the like. Compared with a traditional temperature sensor, the temperature sensor is high in response speed, stability and sensitivity. According to the invention, efficient and reliable temperature detection can be realized, and a new thought and a technical solution are provided for the development of a temperature sensing technology.

This invention discloses a low-NOx submerged combustion device and method for ammonia. The submerged combustion device includes a heating pool, an ammonia burner, a flue, and a heat exchange tube bundle; the heating pool is filled with liquid, and the flue and heat exchange tube bundle are submerged below the liquid surface; the combustion device also includes an ammonia regeneration tank, the lower part of which is located below the liquid surface in the heating pool, and the upper end extending beyond the top of the heating pool; the ammonia regeneration tank has two spray facilities on its side wall, the upper spray facility I is used to introduce and spray liquid above the liquid inlet into the ammonia regeneration tank, and the lower spray facility II is connected to the outlet of the aeration mixture pump; the ammonia burner is used for combustion under oxygen-deficient conditions. The low-NOx submerged combustion device of this invention can achieve efficient low-NOx combustion and simplifies the denitrification equipment required in traditional combustion systems.

The utility model discloses a hemming device for processing metal partition plate products, which comprises a base, a placing plate is mounted on the right side of the top of the base, a limiting component is arranged in the placing plate, a hemming mechanism is arranged at the top of the base, and the hemming mechanism comprises a hemming component, a hemming component and a hemming component. Comprising a supporting plate fixedly installed on the top of a base and a sliding rod installed in the base in a sliding mode. According to the hemming device for machining the metal partition plate product, the hemming mechanism is arranged, under driving of a driving air cylinder, rapid hemming operation on a metal partition plate can be achieved, stability of the metal partition plate in the hemming process can be kept through a positioning assembly, and the plate rolling quality is improved; and the hemming plate and the positioning plate which can be flexibly detached are mounted through the bolts, so that the hemming plate and the positioning plate which are matched with each other can be conveniently configured according to the metal partition plates with different requirements, and the flexibility of the hemming device is improved.