351results about How to "Improve quality stability" patented technology

The utility model relates to the technical field of casting, in particular to a vacuum negative pressure device for lost foam casting. According to the technical scheme, the device comprises a mounting bottom plate, a vacuum pump is arranged above the mounting bottom plate, a pressure stabilizing assembly is arranged at the position, located on the mounting bottom plate, of the air inlet end of the vacuum pump, a filtering assembly is arranged on one side of the pressure stabilizing assembly, a negative pressure pipe is arranged on a connecting pipe, and a vacuum distribution mechanism is arranged at the end, away from the connecting pipe, of the negative pressure pipe. The filtering assembly adopts a multi-layer composite filtering structure, so that impurities in gas can be efficiently removed, meanwhile, the system pressure can be monitored and adjusted in real time through an intelligent central controller in the pressure stabilizing assembly, pressure fluctuation is effectively buffered, a stable negative pressure environment is provided for lost foam casting, and the production efficiency is improved. And meanwhile, the vacuum distribution mechanism is designed in a modularized mode, negative pressure distribution can be accurately controlled according to different production requirements, the air exhaust efficiency is improved, and the production efficiency of lost foam casting and the precision of castings can be improved.

The utility model provides a sheet metal part laser cutting anti -deformation support frock belongs to sheet metal processing technical field, including moving mechanism, including support frame, the universal wheel of fixed connection in support frame bottom, the mounting bracket of fixed connection in support frame inner wall, the top drive air cylinder of adaptive installation in support frame side wall, fixed mechanism, including the mounting plate of fixed connection in mounting bracket side wall, the installation mouth of opening in mounting plate side wall, the clamping seat of fixed connection in mounting plate inner wall, the fixed frame of fixed connection in clamping seat side wall. The utility model discloses through the setting of moving mechanism and fixed mechanism, has realized the adaptive fixing of different size, shape sheet metal part, and moving mechanism adopts universal wheel and top drive air cylinder combination, has guaranteed frock's nimble movement and has ensured the stability when working, and fixed mechanism passes through the cooperation of adjusting assembly and clamping assembly, utilizes the accurate positioning of small -size sheet metal part of top block driven by top drive air cylinder.

The utility model discloses an oxygen -enriched bottom -blowing smelting furnace structure, include: base, the top surface symmetrical fixed connection of base has the support, smelting furnace main part, and the both ends of smelting furnace main part are respectively sleeved and have the closed cylinder, and the closed cylinder rotation is connected on the support, and the end plate is fixed in the closed cylinder end, and the rotating assembly is arranged between the closed cylinder and smelting furnace main part, and the closed cylinder bottom is installed with the discharge gate in rear end, and the smelting furnace main part is opened with the discharge port, transmission mechanism, and transmission mechanism includes transmission assembly and support component, cooling module, and cooling module is arranged in smelting furnace main part, and the air inlet spray head, and the air inlet spray head detachable connection is in the bottom of smelting furnace main part, and monitoring module, and monitoring module is installed in smelting furnace main part. The oxygen -enriched bottom -blowing smelting furnace can pass through the furnace body rotation and bottom -blowing oxygen -enriched and promote the reaction efficiency and the uniformity, and the utility model discloses can pass through the furnace body rotation and bottom -blowing oxygen -enriched and promote the reaction efficiency and the uniformity, and have efficient, easy maintenance, safe and stable and environmental protection adaptability.

The invention relates to the technical field of locks, and discloses a handle mandrel assembly and locks.The handle mandrel assembly comprises a fixing piece, a handle mandrel, a limiting piece and a reset bias piece, the fixing piece is suitable for being fixed to the inner side face of a lockset panel and provided with a positioning hole axially opposite to a handle hole in the lockset panel, and the limiting piece is provided with a reset bias piece; a first blocking part and a second blocking part are respectively arranged on two axisymmetric sides of the positioning hole of the fixing piece; the handle mandrel is rotatably arranged in the handle hole and the positioning hole in a penetrating manner; the limiting piece is rotationally arranged on the handle mandrel along with the handle mandrel, and is provided with a first pushing and blocking part corresponding to the first blocking part and a second pushing and blocking part corresponding to the second blocking part; the reset bias piece is provided with a connecting part which is in elastic deflection connection with the handle mandrel as a fulcrum, a first arm which extends out of the connecting part and is suitable for abutting against the first blocking part, and a second arm which extends out of the connecting part and is suitable for abutting against the second blocking part. The structural stability and the quality stability of the whole handle mandrel assembly can be improved.

This invention provides an ink mixing device for a packaging box printing machine, relating to the field of ink processing technology. The ink mixing device for the packaging box printing machine includes a mixing tank and a bottom tank; it also includes a drive motor, the output end of which is connected to a pressing mechanism and a reciprocating mechanism. The pressing end of the pressing mechanism is connected to a piston, which moves within a metering mechanism. An adjustment mechanism for metering is also provided on the outside of the metering mechanism. Inside the mixing tank, a stirring assembly and a scraper are provided for ink mixing. The stirring assembly and scraper are driven by the drive motor. The reciprocating end of the reciprocating mechanism is connected to a scraper ring for scraping the inner wall of the mixing tank. This invention achieves coordinated operation of metered ink delivery, efficient mixing, and automatic tank wall cleaning by simultaneously driving the pressing mechanism, stirring assembly, and reciprocating mechanism with a single drive motor, effectively reducing equipment energy consumption and structural complexity.

The invention discloses a radial split type multistage pump maintenance device and method, and belongs to the field of maintenance, the radial split type multistage pump maintenance device comprises a support, a jack, a steel ball and a dial indicator, the support is used for supporting an external pump body and realizing vertical placement of the external pump body, the jack is arranged in the support, the steel ball is arranged at the top of the jack, and the dial indicator is arranged on the pump body. And measuring the shaking amount of the pump body bearing seat. The detection means adopted by the invention can effectively eliminate installation accumulated errors caused by factors such as gravity action and pump body spigot fit clearance in the step-by-step assembly process of the sectional pump body, and solves the technical problem that the bearing cannot accurately position the radial center of the rotor.

An adjustable thin-layer silicone cloth production device includes a coating device, a transfer device, and a flattening device. The coating device is divided into two or more coating and drying zones. A hot air box is installed on the top of the coating device, and a fiberglass cloth unwinding device is installed near the feed inlet. Each coating and drying zone is equipped with at least one double-sided coating device and at least one hot air conveying pipeline. The transfer device includes at least one transfer roller assembly installed inside a transfer box. The flattening device is divided into two or more flattening zones by horizontal partitions. A silicone cloth winding device is installed near the discharge outlet. Each flattening zone is equipped with a flattening mechanism, which can be a heated flattening mechanism, a room-temperature flattening mechanism, or a cooled flattening mechanism. This invention has a reasonable design, is easy to operate, and has the advantages of stable operation, high production efficiency, and good product quality.

The utility model belongs to cigarette production equipment technical field discloses a kind of tipping paper curling device.The tipping paper curling device includes rack, guide plate component, paper scraping component and adjusting roller component, guide plate component is fixedly installed on rack, for guiding tipping paper;Paper scraping component is set in the downstream of guide plate component, and paper scraping component includes cutter shaft and doctor blade, cutter shaft is fixedly arranged on rack, and doctor blade is arranged along the axial direction of cutter shaft, and doctor blade is used to scrape tipping paper;Adjusting roller component includes fastening ring, connecting shaft and first paper guide roller, fastening ring is rotatably arranged on cutter shaft and is fixedly connected with connecting shaft, first paper guide roller is sleeved on connecting shaft and is rotatably connected with connecting shaft, and first paper guide roller is located between guide plate component and paper scraping component, and it can make the included angle between tipping paper and cutter shaft be acute, to solve the roughness of tipping paper surface processing effect, enhance the bonding firmness of tipping paper and glue.

This invention belongs to the field of adaptive control technology and discloses a collaborative optimization method for rewinding and straightening parameters of cold-hardened strip steel. The rewinding and straightening process is divided into three independent calculation units: an unwinding tension section, a multi-roll straightening section, and a coiling tension section. Based on elastoplastic bending mechanics and the tension-stretch deformation mechanism, constitutive equations for the force and energy of each unit are established. Combined with the work hardening evolution law of strip steel, multi-unit coupled solutions are achieved through tension transfer equations and bending curvature iteration equations, quantifying the mapping relationship between five types of core process parameters and export quality indicators. Coupled with a material correction coefficient and a mechanism-data dual-model prediction architecture, it can adapt to the deformation characteristics of strip steel of different grades and specifications, avoiding unqualified strip shape problems caused by insufficient straightening, suppressing excessive elongation, surface scratches, and increased roll wear caused by over-straightening, and improving the accuracy of process parameter matching and the level of control over the straightening process.

The utility model provides a transportation device for preserving the integrity of tricholoma matsutake. The transportation device for preserving the integrity of the tricholoma matsutake comprises a box body, two containing boxes are arranged in the box body, and a plurality of containing grooves used for containing the tricholoma matsutake are formed in the two containing boxes; the ventilation opening is formed in one side of the box body, and a protective net is arranged on the ventilation opening; and the protection mechanism is arranged on the box body and is used for protecting the tricholoma matsutake. According to the transport device for preserving the integrity of the tricholoma matsutake, damage caused by vibration and collision in the transport process of the tricholoma matsutake can be effectively reduced, and the integrity and quality of the tricholoma matsutake are guaranteed.

The application discloses a kind of robot friction stir welding force-position hybrid control method, it is related to robot welding control technical field, comprising the following steps: step S10 establishes the hybrid strategy model based on constant displacement control and constant pressure control, the trajectory deviation caused by flexible deformation is compensated by robot dynamic offset function;The constant displacement control monitors welding depth in real time by laser sensor, the laser sensor is installed in 45° oblique direction to the outer wall of motorized spindle, and the collection point is located in the front side of the welding advancing direction, to avoid the interference of flash;The constant pressure control is collected axial upset force by six-dimensional force sensor, and force feedback type impedance control strategy is adopted.The robot friction stir welding force-position hybrid control method compensates the flexible deformation of robot by dynamic offset function, combined with the hybrid strategy of constant displacement and constant pressure control, solves the problem of uneven weld forming under single control mode.

The invention provides a device and a method for on-line measurement of boron concentration in a boron trifluoride complex system, and relates to the technical field of boron-10 acid production. The device comprises a neutron emission part, a fluid circulation part, a neutron detection part and a data processing part. The neutron emission part is used for emitting thermal neutron beams, the fluid circulation part is communicated with a fluid pipeline at the bottom of an exchange rectifying tower of the boron trifluoride-anisole complex production process, and the fluid circulation part is of a neutron penetrable structure; the neutron detection part is arranged on the side, away from the neutron emission part, of the fluid circulation part and used for receiving thermal neutron beams penetrating through the boron trifluoride-anisole complex and converting neutron intensity signals into electric signals, and the data processing part is electrically connected with the neutron detection part and used for receiving the electric signals and sending the electric signals to the fluid circulation part. And inverting the concentration of boron-10 in the boron trifluoride-anisole complex according to the attenuation degree of the thermal neutron beam to obtain the total concentration of boron. The device can output the total boron concentration measurement result in real time, and sampling can be carried out without interrupting the production process.

The application provides a kind of metal product processing control method and system based on three-dimensional modeling, it is related to computer technology field, first, the design requirement file of the metal product to be processed is obtained, including structure description and material attribute data, initial three-dimensional framework data and initial internal structure data are generated by three-dimensional structure analysis and combined into product initial three-dimensional model data;Then, the product initial three-dimensional model data is subjected to surface subdivision reconstruction processing to obtain product finishing three-dimensional model data;Then, a preset metal material stress feedback model is called to perform layer-by-layer forming simulation analysis, and a processing simulation feedback data set is generated;Finally, a continuous processing instruction sequence for driving machine tool motion control is generated according to the processing simulation feedback data set.The application realizes accurate control of the metal product processing process, improves the processing precision, efficiency and quality stability, and reduces the cost.

The application discloses a non-magnetic ring proportional pressure reducing electromagnetic valve for a hydraulic system, a first through hole, a second through hole and a first blind hole are formed in the valve body, a pressure relief hole and a pressure inlet hole are formed in the side wall of the valve body, the pressure relief hole and the pressure inlet hole are communicated with the first through hole, a working hole is radially formed in the side wall of the valve body, the inner end of the working hole is communicated with the first through hole, and the outer end extends to the outer surface of the valve body, a valve core is axially movably installed in the first through hole, and a fifth outer groove and a first annular protrusion are arranged on the outer periphery of the valve core, the first annular protrusion forms an annular gap with the inner wall of the first through hole, a coil assembly is arranged in the yoke, a stop iron is fixedly arranged in the yoke through a mounting plate, and a magnetic circuit optimization structure is arranged on the outer surface of the stop iron. The magnetic circuit optimization and the multiple anti-sticking and friction-reducing designs are integrated, the independent magnetic ring is cancelled, the structure is simplified, the electromagnetic force, the response speed and the service life of the electromagnetic valve are comprehensively improved, the processing difficulty is obviously reduced, and the application range of the electromagnetic valve is widened.

The utility model discloses a kind of thermocell cover assemblies, including cover and protective cover, the cover and protective cover are connected, pole and stud are set on cover, the pole is connected to flow bar or wire, screw is set on the stud, mounting hole is set on the protective cover, after screw is penetrated mounting hole, and it is connected with stud screw thread, so that cover and protective cover connection fastening.The utility model protects wire, flow bar on the thermocell cover assembly by protective cover, prevent thermocell cover assembly from damaging wire and flow bar when being stressed, improve the structural strength of battery cover assembly, to improve the quality stability of thermocell.By the setting of cushion layer, the pole and cover do not produce through lead, to avoid short circuit.By the setting of stud and screw, the stability of cover and protective cover connection is improved, by the setting of protective cover, the safety of internal pole and wire, flow bar connection point can be protected, improve the durability of thermocell.

The application discloses a solanaceae family seed automatic disinfection working method based on dynamic adjustment of humidity and heat, relates to the technical field of seed automatic disinfection, and is used for solving the problem that precise regulation and control based on physiological state is difficult to realize, and the probability of disease occurrence is increased. The seed coat state and conductivity of solanaceae family seeds after disinfection are detected, the proportion of a highlighted area is calculated, and the ethanol concentration is collected. The humidity response characteristics are analyzed through the proportion of the highlighted area and the ethanol concentration. The number of cracked seeds is counted, and the temperature response characteristics are analyzed in combination with the conductivity. Whether a ventilation processing mechanism is started is comprehensively judged. After ventilation, a regulation and control time is set. The respiration intensity and the tray water film thickness are monitored in real time. The humidity and heat states are classified according to the respiration change trend and the water film thickness. Cooling or drying channels are selected according to the classification results. The dynamic monitoring and regulation and control of the humidity and heat states after disinfection are realized. The ventilation channels are automatically selected through multi-dimensional sensing. The disinfection environment is optimized. The seed quality and storage stability are effectively improved.

The invention relates to a preparation method of peppermint essence, which solves the problems of quick volatilization and poor durability of the traditional peppermint essence by optimizing the combination of essence components and a slow-release carrier by adopting a multi-layer microcapsule slow-release technology and a nanocapsule technology. According to the method, essence components such as menthol, menthone and leaf isovalerate are mixed with at least two layers of microcapsules, the outer layer microcapsules slowly release fragrance, the inner layer microcapsules quickly release fragrance, and it is ensured that the fragrance is kept for a long time in the using process. Meanwhile, the essence is uniformly dispersed in different carrier systems through ultrasonic-assisted emulsification by adopting a nanocapsule technology, so that the stability and dispersity of the essence are improved. In addition, the temperature-responsive and pH-responsive polymer materials are introduced, so that the release rate of the essence can be adjusted according to the external environment, and the adaptability of the essence is further enhanced.

The utility model discloses a sorting machine for rice production, including the support frame, the rotatory frame is rotatably installed on the support frame, is provided with the adjusting mechanism on the support, the adjusting mechanism includes the bottom pipe, the bottom pipe is provided with a plurality of, and a plurality of bottom pipes are installed respectively on the four corners of the lower end surface of support frame, the inside rod is slidably arranged in the bottom pipe, the inside rod is provided with the semicircle cover on the same axis, and the most prominent technical advantage of the rice sorting machine lies in the unique high-precision inclination adjusting system, which completely solves the industry pain point of the traditional equipment in adjusting different batches of raw materials, the device adopts the innovative sliding rod and the tubular structure design, and cooperates the accurate friction self -locking mechanism, so that the operator can complete the accurate adjustment of the inclination angle of the sorting machine in less than 30 seconds.

The utility model discloses a welding-free busbar mounting device, which relates to the technical field of storage battery manufacturing, and comprises a shaping and positioning mechanism and an auxiliary mounting mechanism, a longitudinal screw and a transverse screw are arranged on the shaping and positioning mechanism, the longitudinal screw and the transverse screw are connected through a fixing block, a plurality of pressing plates are arranged on one side of the fixing block, and the pressing plates are arranged on the other side of the fixing block. According to the utility model, through the optimized design, the structure of the mounting device is more stable, the problem that dislocation is easy to occur during mounting in the prior art is effectively solved, and the mounting accuracy and reliability are improved.

The utility model discloses a multifunctional portable barbecue stove, including one upper portion with the furnace body of opening, forms the furnace cavity in the furnace body, and the both sides in the furnace cavity are detachably provided with the charcoal box. It is completely different with the layout of the food material on the upper portion and the charcoal fire on the lower portion commonly used in the traditional barbecue stove, and it innovatively places the charcoal box on the both sides of the furnace cavity. In the barbecue process, the food material is placed at the opening of the furnace body, and since the charcoal box is located on the side, the oil dropped by the food material will not directly contact the charcoal fire, but will drop into the oil collecting box, avoiding the problem of a large amount of oil fume generated by the oil meeting the high-temperature charcoal fire in the traditional design, making the outdoor barbecue more healthy and more environmentally friendly, and improving the user's use experience. The upper portion of the furnace body is detachably provided with a support assembly, and the support assembly is provided with an automatic rotating assembly. The automatic rotating assembly can drive the food material to realize stable automatic rotating function, replacing the operation mode of manually frequently turning the food material, and significantly reducing the labor intensity of the user in the barbecue process.

This invention discloses a fully automatic hybrid electric plastic injection molding machine, comprising: a frame; a mold clamping mechanism for closing and opening the mold; an injection mechanism including a melt cylinder, a feeding screw disposed within the melt cylinder, and an injection drive assembly; an injection stage moving mechanism for driving the injection mechanism to move relative to the mold clamping mechanism on the frame, approaching or moving away from the mold clamping mechanism; a hydraulic mechanism including an oil pump, a hydraulic valve group, and hydraulic lines, wherein the oil pump is connected to the mold clamping cylinder of the mold clamping mechanism and the injection stage moving cylinder of the injection stage moving mechanism via hydraulic lines; an electric drive device for independently driving the feeding screw to rotate to achieve plastic feeding and plasticizing; and a control module electrically connected to the hydraulic mechanism and the electric drive device. This invention can reduce energy consumption, improve plasticizing control accuracy and product quality stability, reduce the load on the hydraulic system and maintenance costs, and achieve deep parallel plasticizing and molding actions to improve production efficiency.

This invention discloses a liquefied petroleum gas (LPG) frying boiler with easy temperature control and its operating method, specifically relating to the field of frying boiler technology. It includes a mounting frame and multiple LPG stoves, all of which are fixedly installed at the bottom of the mounting frame. Each LPG stove has a boiler assembly on its top, and each boiler assembly includes a boiler body, two sliding sleeves, two second sliding groove plates, and two second sliding plates. The opposing sides of the two sliding sleeves are fixedly connected to the boiler body. This invention uses a stepper motor output shaft to drive a lead screw, thereby moving the support frame and boiler body backward. When the first light is energized, it indicates that the current boiler body has moved to a non-heating position away from the LPG stove. Subsequently, another boiler body can be horizontally moved along the length of the mounting frame to a heating position directly above the current LPG stove. Overall, temperature control is convenient and the movement is flexible, effectively improving frying processing efficiency and the stability of finished product quality.

The invention discloses a method for preparing fluxed oxidized pellets based on hematite, and aims to solve the technical bottlenecks that high-proportion hematite pellets are difficult to grind and settle, high in roasting energy consumption and low in strength. The method comprises the following three core processes: S1, raw material pretreatment: performing wet ball milling, polyacrylamide-assisted sedimentation and ceramic vacuum filtration on coarse-grain hematite powder of which the particle size is less than 10mm, uniformly mixing with magnetite concentrate, and performing high-pressure roller milling treatment; s2, green pellets are prepared, specifically, the iron ore mixture is evenly mixed with bentonite, a calcium ferrite additive and a limestone flux, and qualified green pellets are prepared through a disc pelletizer; and S3, pellet roasting is conducted, specifically, green pellets are subjected to segmented drying, preheating and roasting in a chain grate-rotary kiln, and a finished product is obtained. According to the invention, the hematite with abundant reserves is used as a main raw material, and the compressive strength of the prepared oxidized pellets is more than 2500N / piece, the drum strength is more than 93%, the wear resistance index is less than 5%, and the prepared oxidized pellets have the cost advantage and the environmental protection benefit, and meet the high-efficiency smelting requirement of a blast furnace.

The invention discloses a stamping process-oriented defect feedback and digital simulation closed-loop control system and method, and relates to the technical field of closed-loop control. The system comprises a working condition synchronous sensing and feature coding module, a digital simulation prediction module, a defect feedback and decision control module, a process parameter execution module and an online learning and model evolution module. According to the method, multi-source operation data are collected, a working condition feature packet is generated, material parameters are dynamically matched after a formed digital simulation model is input, initial disturbance is injected, and defect prediction parallel to physical stamping is achieved; calculating a prediction confidence coefficient by combining measured data, and generating a precise process adjustment decision by linking defect risk distribution and applying the decision to a next period; and based on actually measured and predicted errors, continuously updating a material parameter library and forming digital simulation model parameters through online learning. According to the method, the problems that traditional stamping simulation and reality are disjointed, and process adjustment is blind are effectively solved, the product defect rate is greatly reduced, and meanwhile the production efficiency and the quality stability are improved.

This utility model discloses a filter element cutting device, comprising: a U-shaped frame, a conveyor internally mounted on the U-shaped frame, a folding cover rotatably mounted on the other end of the U-shaped frame, a folding pressing mechanism fixedly mounted inside the U-shaped frame, the pressing end of the folding pressing mechanism being able to flip and press against both ends between the conveyor and the folding cover to achieve pressing of the conveyed filter element, and an N-shaped frame fixedly mounted on the upper surface of the U-shaped frame, with a laser ranging sensor fixedly mounted inside the N-shaped frame. This application, through the design of the folding pressing mechanism, achieves fully automated operation from conveying, folding, detection, and cutting, reducing manual intervention, improving production efficiency, and lowering labor costs. Simultaneously, the closed-loop thickness detection and control system ensures the stability and consistency of filter element quality, improving the overall product quality.

This application discloses a semiconductor device structure, a CMOS structure, and a method for fabricating the same, relating to the field of semiconductor device technology. The semiconductor device structure employs two buried oxide layers interleaved within a three-layer silicon SOI substrate. The epitaxial initiation layer of the source / drain regions is transferred from the top silicon layer of the SOI substrate to an intermediate or supporting silicon layer within the SOI substrate. This solves a series of process problems arising from the development of SOI technology nodes, particularly in epitaxially growing source / drain regions on a thinner top silicon layer, thus improving the epitaxial growth quality and structural stability of the source / drain regions. Furthermore, the parallel overlap length between the source / drain regions and the gate structure is reduced, significantly decreasing the parasitic capacitance between the source / drain regions and the gate structure. Moreover, the source / drain regions can directly contact the channel, enhancing the contact reliability between the source / drain regions and the channel, enabling stress control of the channel, and improving channel mobility, thus possessing significant application value.

The embodiment of the invention provides a 5G small groove welding machine, and relates to the technical field of welding equipment. The 5G small groove welding machine comprises a welding trolley, a main body of the welding trolley is a six-axis type titanium alloy trolley body of a lightweight structure, and a G communication module is arranged in the main body of the welding trolley; the driving motor drives the driving wheel to rotate through the driving speed reducer; the lifting motor drives the lifting screw rod, the fixed end of the angle swing motor is connected with the lifting screw rod, and the first gun clamp is installed at the driving end of the angle swing motor; the driving end of the wire feeding motor is connected with the input end of the worm and worm gear transmission mechanism, and the output end of the worm and worm gear transmission mechanism is connected with the wire feeding wheel. The swinging and lifting angle swinging module realizes welding gun positioning, welding gun positioning and angle self-adaption, and adapts to a small groove; the problems of environmental adaptability, precise control and remote control of deep sea small groove welding are solved, and the welding quality and efficiency are improved.

This invention discloses a craft beer flavor enhancement process using oak barrel micro-oxygen aging, belonging to the field of craft beer brewing technology. This process achieves the targeted transformation and accumulation of flavor compounds in craft beer through oak barrel pretreatment, precise control of the micro-oxygen environment, and optimization of aging process parameters. First, the oak barrel undergoes a combined pretreatment of toasting, carbonization, and maceration. Then, the fermented base beer is poured into the pretreated oak barrel, and a stable oxygen concentration is maintained within the barrel through a micro-oxygen control system, aging under suitable temperature conditions. Craft beer brewed using this process exhibits a significantly increased content of characteristic flavor compounds and an effective reduction in the content of off-flavor substances such as acetaldehyde. The beer combines the rich aroma of oak with the refreshing taste of beer, solving the problems of single flavor and prominent off-flavors in traditional aging processes, and significantly improving the quality and market competitiveness of craft beer.

The utility model belongs to the technical field of heating furnaces for preparing and storing hydrogen materials, and particularly discloses a cooling and stirring structure of a heating furnace for preparing and storing hydrogen materials, which comprises a cooling fan arranged outside a heating furnace body and a cooling component positioned in the heating furnace body, and the cooling fan is communicated with the cooling component through an air inlet pipe; a supporting assembly is arranged on the outer side of the air inlet pipe and connected with the cooling assembly, an air cylinder is arranged at the top of the heating furnace body, and the output end of the air cylinder is connected with the supporting assembly and used for driving the cooling assembly to move vertically. The cooling assembly is arranged in the heating furnace body, the cooling assembly is communicated with the external cooling fan to further cool a melt-spinning sheet falling off from the cooling roller in an accelerated mode, the air cylinder is connected with the cooling assembly, ascending and descending of the cooling assembly are achieved, and the melt-spinning sheet is crushed and stirred. The specific surface area of the material is greatly increased, the surface sites of the hydrogen storage material for adsorbing hydrogen are increased, and the hydrogen storage efficiency is effectively improved.

The application relates to a double anti-overpressure safety control system and method of a steam-water dual-purpose furnace, which comprises an enhanced signal acquisition unit, an electronic control unit, an executing mechanism, a physical protection unit, a man-machine interaction and data management unit; the physical protection unit comprises three-stage relief devices independently installed on a steam pocket; the enhanced signal acquisition unit comprises a pressure monitoring module, a flow monitoring module, a temperature monitoring module and a safety component state monitoring module; the man-machine interaction and data management unit comprises an HMI and a data storage module; the executing mechanism comprises a frequency conversion burner, an electric feed water pump and an electric regulating valve V1 receiving PLC analog output; the PLC programmable logic controller controls the frequency conversion burner, the electric feed water pump and the electric regulating valve V1 based on the data collected in each module of the enhanced signal acquisition unit. The application greatly reduces the probability of serious overpressure accidents caused by single element or system failure.