351results about How to "Easy to transform" patented technology

The invention relates to power distribution network fault processing equipment applied to the technical field of power distribution, and aims to improve the fault prediction, diagnosis and processing capabilities of a power system. The equipment comprises a pre-training module, a neural network architecture module, a data acquisition layer, an edge calculation layer, a core processing layer, a context learning module, a reasoning processing module, an output and interaction layer and a continuous learning and improvement layer, and is characterized in that a large-scale pre-trained Transform model is utilized, and professional knowledge of a power system is combined; according to the method, deep understanding and analysis of a complex power grid state are realized, through multi-source data fusion, edge calculation and central cooperative processing, the equipment can monitor the power grid state in real time, accurately predict potential faults and provide intelligent diagnosis and repair suggestions, and model pre-training and optimization are performed by adopting self-supervised learning and federated learning technologies; using reinforcement learning to optimize a fault response strategy; the interpretability of the model is realized, and the decision transparency is improved.

The invention provides a novel AGV (Automatic Guided Vehicle) for an automobile chassis assembly line, relates to the technical field of AGV transportation, and solves the problems that a steel structure and conveying equipment need to be built for conveying an automobile chassis, so that the construction cost is high; the device comprises a frame body, driving mechanisms, swing mechanisms, a lifting appliance and an electric control mechanism, the driving mechanisms are arranged at the four corners of the frame body, the swing mechanisms are arranged between the driving mechanism located on one side of the frame body and the frame body, the lifting appliance is arranged between the frame body, and the electric control mechanism is arranged between the lifting appliance and the frame body. The electric control mechanism is connected with the driving mechanism and the hanger. The device can adapt to the situation that the ground is uneven; an air supply system, a lighting system and industrial control integration are carried, a steel structure does not need to be installed, meanwhile, the requirement for plant loads is avoided, the steel structure cost and plant construction cost can be reduced, and the site construction period can be shortened; in addition, the conveying mode has high flexibility, and great convenience is provided for later line reconstruction.

The utility model discloses a horizontal packaging machine, and relates to the technical field of packaging machinery. The utility model discloses a quick release type feeding tailstock, material conveyer, film walking device, roll film forming device, longitudinal sealing device, horizontal sealing device and electrical appliance box, adopts quick release type feeding tailstock, has quick release function, is convenient to clean feeding tailstock, ensures the hygiene of material on quick release type feeding tailstock, improves the production efficiency, reduces the production cost, and improves the production efficiency. The film feeding device is arranged below the material conveying device, namely, a lower film feeding mode is adopted, so that materials are directly conveyed to a rolled film after being output from the quick-disassembly type feeding tailstock, the materials are prevented from making contact with other devices outside the quick-disassembly type feeding tailstock, sanitation of the materials to be packaged is guaranteed, meanwhile, a protective cover is arranged, and the protective cover can be used for protecting the materials to be packaged. External pollution is avoided during longitudinal sealing and transverse sealing, the quick-frozen materials are protected to a certain extent, corrosion of the packaging machine caused by water vapor of the quick-frozen food is avoided, and the packaging machine can be waterproof and moistureproof.

The invention relates to an anti-PD-1 single-domain antibody and application thereof. The complementarity determining region of the VHH chain of the anti-PD-1 single-domain antibody comprises a CDR1 with an amino acid sequence as shown in SEQ ID NO.1, a CDR2 with an amino acid sequence as shown in SEQ ID NO.2 and a CDR3 with an amino acid sequence as shown in SEQ ID NO.3. The invention further discloses a preparation method of the anti-PD-1 single-domain antibody. The PD-1 protein is used for immunizing alpaca, an antibody display library is constructed, an antibody combined with the PD-1 protein is screened, the single-domain antibody with high specificity and affinity is obtained, and the single-domain antibody has the capacity of blocking combination of PD-1 and PD-L1 and the function of enhancing immune cells.

The utility model provides a gas mixing device and semiconductor equipment, including: a gas mixing pipe and at least one gas guide pipe, the gas guide pipe is arranged on the side wall of the gas mixing pipe and extends into the gas mixing pipe, the gas guide pipe located in the gas mixing pipe is provided with at least one gas outlet hole, and the orientation of the gas outlet hole is consistent with the flow direction of carrier gas in the gas mixing pipe. The gas mixing device is simple in structure, low in manufacturing cost and convenient for pipeline modification and maintenance. Besides, different process gases are respectively conveyed to the gas mixing pipe through the plurality of gas guide pipes, the process gases can be sprayed out along the flowing direction of the carrier gas so as to be more stably blended into the carrier gas, the process gases and the carrier gas are fully and uniformly mixed through the laminar flow distribution assembly, and the mixing pipe effectively reduces the pressure difference by increasing the through-flow sectional area and reducing the flow speed, so that the gas mixing efficiency is improved. And the carrier gas and the process special gas are stably and uniformly mixed.

The invention discloses a high-strength and high-toughness aluminum lithium alloy and a preparation method and application thereof, and belongs to the technical field of aluminum lithium alloy material preparation and thermomechanical treatment thereof. The obdurability of the low-Cu / Li-ratio aluminum-lithium alloy is improved through cooperation of hot rolling deformation, solid solution and aging treatment, alpha-Al and Al2Cu eutectic phases at the grain boundary are crushed and partially re-dissolved into a matrix mainly through large-deformation rolling, the grain boundary weakening effect of the alpha-Al and Al2Cu eutectic phases on the alloy is reduced, micron-sized Cu-rich phases and Er-rich phases are eliminated through solid solution treatment, the plasticity of the alloy is improved, and the mechanical property of the alloy is improved. And meanwhile, lattice distortion of the aluminum-lithium alloy is increased, and driving force is provided for subsequent aging precipitation. And a large number of dispersively distributed nanoscale Al3Li phases and core-shell structure phases are separated out in the subsequent aging treatment process, so that the strength of the aluminum-lithium alloy is further improved, and the aluminum-lithium alloy with the low Cu / Li ratio obtains excellent strength and plasticity.

The invention discloses a rare earth extraction VOC treatment device and method. The device comprises an extraction unit, a VOC absorption unit, a first communication unit and a second communication unit, the extraction unit comprises an extractor; the VOC absorption unit is communicated with the extractor through a first communication unit and is arranged to receive VOC gas containing volatile organic matters generated in the extractor and recover the organic matters through water absorption; the VOC absorption unit is also communicated with the extractor through a second communication unit, so that the absorbed residual gas is returned to the extractor through the second communication unit; no vacuumizing equipment is arranged in the device. By adopting the device, all volatile organic matters can be basically recovered, and no waste gas emission in the extraction process can be basically realized.

The invention relates to the technical field of power systems, and discloses a half-wavelength controllable tuning method under the background of a dual-carbon and novel power system. Comprising the following steps: system evaluation and demand analysis: collecting power grid information and fusing dual carbon and novel power system demands to determine a tuning target and key parameters; designing a half-wavelength tuning strategy, determining tuning parameters by using a particle swarm optimization algorithm, formulating the strategy, and performing simulation optimization; selecting and configuring half-wavelength controllable equipment, evaluating performance indexes, selecting equipment, and reasonably configuring, installing and debugging; system integration and communication network construction: integrating equipment and constructing a reliable communication network to ensure information transmission; tuning implementation and monitoring are carried out, a control system is developed to send instructions, data are collected and analyzed to evaluate performance, and optimization is fed back according to results. According to the invention, the stability and adaptability of the power grid are enhanced, the intelligent development is promoted, the resource configuration and structure are optimized, the safety and sustainable development are guaranteed, and the challenges of dual-carbon and novel power systems can be effectively handled.

The invention belongs to the technical field of monoclonal antibody preparation, and particularly relates to a human-mouse chimeric monoclonal antibody for resisting human myelin sheath oligodendrocyte glycoprotein (MOG) and application of the human-mouse chimeric monoclonal antibody. Complementary determining regions in variable regions of a heavy chain and a light chain of the human-mouse chimeric monoclonal antibody of the anti-human MOG protein come from a mouse, parent activity is reserved to the maximum extent, a constant region is a human antibody constant region, immunogenicity is greatly reduced due to introduction of the human antibody constant region, the occurrence probability of a human anti-mouse antibody reaction is reduced, and the anti-human MOG protein is prepared. The specificity of the antibody is improved. The human-mouse chimeric monoclonal antibody resisting the human MOG protein has antigen binding specificity, the heterology of a mouse monoclonal antibody is greatly reduced, the biological activity of the human-mouse chimeric monoclonal antibody is good, and the human-mouse chimeric monoclonal antibody resisting the human MOG protein can specifically detect the MOG protein.

The invention belongs to the technical field of alloys, and particularly relates to a rolled-state tough titanium alloy and a preparation method thereof.The rolled-state tough titanium alloy is obtained by smelting sponge titanium, aluminum particles and a titanium-molybdenum intermediate alloy, then heating the smelted sponge titanium, aluminum particles and the titanium-molybdenum intermediate alloy and then adopting a hot rolling mode. The rolled-state tough titanium alloy obtained through the method is fine in grain and uniform in structure, all components are evenly distributed, the technical defects of as-cast-state Ti-6Al-xMo alloy are overcome, and the mechanical property is effectively improved.

The invention provides application of high-molecular-weight cationic polyacrylamide in a titaniferous solution sedimentation process in a sulfuric acid method titanium dioxide process. The number-average molecular weight of the high-molecular-weight cationic polyacrylamide is greater than or equal to 10,000,000. The invention further provides a flocculating settling method for improving the titanium liquid settling effect in the sulfuric acid method titanium dioxide process. According to the method, cationic polyacrylamide is applied to the titanium dioxide titanium liquid sedimentation procedure through the sulfuric acid method, the preparation time of a flocculating agent can be shortened by more than half compared with that in the prior art, in the flocculation process, the concentration of dissociated ions is higher due to the high cationic degree, the adsorption effect on charges is higher, and the flocculation efficiency is improved. Particularly, the adsorbent has a relatively strong adsorption effect on a silicic acid component contained in the titanium liquid, so that the flocculating settling process is performed more quickly and thoroughly. By adopting the emulsion type high-ionic-degree high-molecular-weight cationic polyacrylamide, compared with the traditional flocculant product, the flocculating settling effect of the sulfate process titanium dioxide titanium liquid can be effectively improved, and the production cost is comprehensively reduced.

The utility model belongs to the technical field of bending devices, and relates to an FPC (Flexible Printed Circuit) bending device for LCP (Liquid Crystal Polymer) materials, which comprises a case, a lower die supporting block, a bracket, a lower pressing assembly, an upper die pressing block and a plurality of bending assemblies, the lower die supporting block comprises a containing groove, a bending groove and a heating cavity. The upper die pressing block comprises a bending step and a horizontal groove; the bending assembly comprises a bending push block and a bending driving piece, and the bending push block is provided with a side punching step and a side groove; and heating modules are arranged in the heating cavity, the horizontal groove and the side grooves. According to the FPC bending device, all the heating modules can supply heat to the bending end of the FPC in multiple directions of the bending position, so that an LCP material is softened and is easy to deform, and the shape of the bending end can be fixed after the FPC is bent in a Z shape.

The invention discloses a system for updating software of a rail transit CBTC (Communication Based Train Control) signal system, which comprises an upgrading server serving as an upgrading initiator and a client system applied to equipment to be upgraded, the upgrading server comprises a database module used for storing the version of the software operated by the current client, the public key of the client and the version of the software to be upgraded; the encrypted packet generation module is used for signing and encrypting an original upgrade packet imported by a user; the first log management module is used for recording events and errors occurring in the upgrade server; the first interface module is used for being responsible for an interface between the first interface module and the upgrade server operating system; and the first TFTP module is used for providing a method for downloading the encrypted software package by the client. The invention further discloses a rail transit CBTC signal system software updating method. According to the method, the problem that the software updating of the rail transit CBTC signal system needs to consume a large amount of manpower, material resources and time is solved.

The utility model relates to a steel ladle structure for preventing slag entrapment of molten steel, which comprises a ladle body (1) and a ladle cover (2), a water gap (6) is arranged at the bottom of the ladle body (1), the ladle cover (2) is arranged at a top opening of the ladle body (1) and is used for sealing the ladle body (1), and the steel ladle structure is characterized in that a floating body (3) is suspended in the ladle body (1) and floats at the interface position of the molten steel and the slag, and the water gap (6) is arranged at the bottom of the ladle body (1). And the floating body (3) descends along with the lowering of the liquid level of the molten steel. The steel ladle structure can be directly improved on the basis of an existing steel ladle structure, slag entrapment and air suction can be avoided, the purity of molten steel can be guaranteed, the metal yield is increased, practicability is high, and application and popularization are convenient.

The invention relates to a temperature and water control system and method in a spreading and airing process. The temperature and water control system comprises a spreading and airing container, the monitoring unit is arranged in the spreading and airing container; the air inlet pipeline is communicated with an inner cavity of the spreading and airing container, the vacuum pump is matched with the air inlet pipeline, and the calculation unit is configured to perform a spreading and airing task on each batch of fermented grains which are received by the spreading and airing container in batches and are at the retort outlet temperature; the current temperature and the current moisture content of the current batch of fermented grains are determined according to the temperature information and the moisture content information of the current batch of fermented grains provided by the monitoring unit, and the current temperature and the target airing temperature (Tz) are compared, and the current moisture content and the target airing moisture content (Wz) are compared; therefore, the air inlet parameter of the air inlet pipeline and / or the suction parameter of the vacuum pump and / or the water replenishing parameter of the spray head for spraying the water are / is controlled. According to the invention, acid reduction is realized through regulation and control measures in a pure physical mode, so that the flavor of the final product is improved.

The invention discloses a numerical control plate bending machine machining platform for steel plate production and machining, and belongs to the field of steel plate production and machining, the numerical control plate bending machine machining platform comprises a bending machine main body, the bending machine main body comprises a bending mechanism installed on the bending machine main body in a sliding mode, a bending tool bit is fixedly installed on the bending mechanism, and a machining platform main body is arranged on the bending machine main body. According to the steel plate bending device, two blocking rulers and two baffles are arranged, the end, away from a worker, of a steel plate is fixed through a pressing block and the blocking rulers, meanwhile, the two baffles are matched to limit the two side faces of the steel plate, and therefore the situation that the steel plate deviates and rotates during bending is reduced, and the effect that the bending angles of the two ends of the steel plate are the same is achieved; and an electric sliding rail and an electric sliding block are additionally arranged on the two blocking rulers, so that a worker does not need to adjust the distance between the two blocking rulers through a steel plate any more, and the situation that the bending tool bit presses the arm of the worker even if the steel plate is bent by the bending tool bit due to misoperation of the worker is avoided.

The invention discloses a steering device for an unmanned ship, comprising a box, a control panel, a communication module, a power module, a transmission shaft, a measuring shaft, a motor and a transmission gear; wherein the control panel serves as a control center of the steering device, connects and monitors electronic equipment in the steering device, the communication module provides a communication channel for the control panel to interact with external commands, and the power module provides power for the electronic equipment in the steering device; the transmission shaft and the measuring shaft are rotatably arranged in the box, and synchronous rotation is achieved through the transmission gear, wherein the transmission shaft extends through the top of the box to provide an external physical port; a rotation monitoring device is arranged on the measuring shaft, and the rotation state of the transmission shaft can be fed back to the control panel; under the action of the steering motor, the invention realizes automatic rotation of a disk frame on the unmanned ship, can automatically complete the steering and feedback the angle in real time, and can also display the driving steering state during non-manual operation to the user.

The invention discloses two-way stretching equipment for polypropylene film processing, and belongs to the field of polypropylene film processing.The two-way stretching equipment comprises an operation box and a workbench slidably connected to the interior of the operation box, a locking component is arranged on the outer side of the workbench, and the locking component comprises two first connecting plates arranged on the outer side of a lead screw nut in a sleeving mode; the two first connecting plates are slidably connected to the outer sides of the two guide rods correspondingly, pre-laying supports are hinged to the upper sides of the two first connecting plates correspondingly, the edge of a thin film can be bent by 90 degrees after the rotating base rotates, and finally the thin film is locked; the edge of the thin film is bent by 90 degrees above the positioning seat through rotation of the rotating seat before the thin film is stretched, and the thin film is locked through the rotating seat and the positioning seat, so that the pressure intensity and the pulling force borne by the clamped position of the thin film in the stretching process are reduced, and the clamping position of the thin film is prevented from being damaged.

The invention discloses a method for testing ice blockage prevention performance of an automobile exhaust silencing system. The method comprises the following steps: installing a plurality of measurers in an exhaust silencing system to be tested; the exhaust silencing system to be tested is connected with an engine and is arranged at a low temperature; the engine is shut down after running for a first time period, and the reading of each measurer is read after standing for a second time period; comparing the reading of each measurer recorded this time with the reading of each measurer recorded last time, and repeating the last step if the reading of at least one measurer is changed and the operation frequency of the test working condition does not exceed 140; if the readings are not changed or the operation frequency of the test working condition is greater than 140, calculating the ratio of the read of each measurer recorded this time to the height of the exhaust pipeline or the noise reduction cavity at the installation position of the measurer, and when the ratio is less than 0.6, judging that the ice blockage risk is relatively low; when the ratio is larger than or equal to 0.6, it is judged that the ice blockage risk is high. The test method is low in test cost, simple and efficient to operate and reliable in result.

The utility model belongs to the field of landscape pool structure discloses a kind of landscape pool with water circulation filtration, including pool body, mobile wheel is installed at bottom, the lateral wall of pool body has water inlet and drain, sealing plug is installed at drain;Cleaning plate, set to the bottom surface inside pool body, support frame and pull rod are fixed on cleaning plate;Water container, outer diameter is sequentially reduced from top to bottom, the top of water container outer wall has convex edge, convex edge is set to the top surface of pool body, support frame is abutted to the bottom surface of water container, the lateral wall of water container is provided with overflow hole, the top edge of overflow hole is lower than the top edge of pool body;Circulation filtration component. Through the setting of mobile wheel, the position of the device as a whole is adjusted, and through the separate setting of water container and pool body, the water container and the inside of the pool body can be maintained and replaced by disassembly in the future.

This invention belongs to the field of immunology and relates to a single-domain antibody against TSLP and its uses. The single-domain antibody is composed of heavy chains, including heavy chain CDR1 shown in any one of SEQ ID NO:42-SEQ ID NO:48 or SEQ ID NO:73, heavy chain CDR2 shown in any one of SEQ ID NO:49-SEQ ID NO:50, and heavy chain CDR3 shown in any one of SEQ ID NO:51-SEQ ID NO:61 or SEQ ID NO:74-SEQ ID NO:75. Compared with the prior art, the beneficial effects of this invention are: this invention uses bioengineering technology to screen for single-domain antibodies specifically targeting TSLP, and the antibody affinity is good.

The invention discloses a generic tumor antigen antibody A11 and application thereof. The amino acid sequence of the CDR1 of the generic tumor antigen antibody A11 is as shown in SEQ ID NO. 1; the amino acid sequence of the CDR2 of the generic tumor antigen antibody A11 is as shown in SEQ ID NO. 2; and the amino acid sequence of the CDR3 of the generic tumor antigen antibody A11 is as shown in SEQ ID NO.3. The generic tumor antigen antibody A11 has strong affinity, a chimeric antigen receptor T cell taking the single-domain antibody as an antigen binding domain has strong killing ability to tumor cells, and the antibody can enhance the tumor cell killing ability of NK cells through ADCC effect.

The utility model discloses a driving power supply circuit, comprising a main control chip, a sampling module and a driving module, the sampling module is electrically connected with the main control chip, and the main control chip is electrically connected with the driving module; an electric energy metering database is stored in the main control chip, and the electric energy metering database comprises a plurality of input signals and a plurality of groups of first electric energy parameters in one-to-one correspondence with the input signals; the sampling module can sample a real-time input signal of the input end of the driving power supply circuit and feed back the real-time input signal to the main control chip, and the main control chip finds the corresponding first electric energy parameter from the electric energy metering database according to the real-time input signal. And the main control chip controls the output signal of the driving module at the same time.

This invention relates to the field of valve technology, specifically disclosing an intelligent gas flow regulating valve that integrates leaked gas collection and monitoring. The valve body includes a valve shell and a valve core. A valve stem is located at the upper end of the valve core, and a support cylinder is located at the top of the valve shell. The valve stem has a cavity inside, and a magnetic rack is movably mounted on the side wall of the valve stem. A motor is located on the outer wall of the support cylinder, and the output end of the motor is connected to a gear meshing with the magnetic rack. A magnetic plate with the same polarity as the magnetic rack is movably mounted inside the cavity. The cavity also has a telescopic chamber, and a pressure sensor is located on the side wall of the telescopic chamber. Increasing the volume of the telescopic chamber controls the magnetic plate to move away from the magnetic rack, causing the magnetic rack to disengage from the drive gear. Consequently, the valve core falls, blocking the gas path between the inlet and outlet. This invention can not only monitor gas leaks in pipelines but also collect leaked gas and use it to block the gas supply to the household gas pipeline, preventing leaked gas from escaping into the surrounding environment and causing fire safety accidents.

The diphenyl carbonate reactive distillation system comprises a reactive distillation tower, a reflux pipeline, a tower top reflux tank, a first condenser, a methanol recovery system, a reflux pump, a side extraction pipeline, a side extraction pump, a buffer tank, a discharge pipeline, a tower bottom pump and a flash tank, a tower top liquid material of the reactive distillation tower enters a tower top reflux tank through a reflux pipeline, and a gas material enters a methanol recovery system after being condensed by a first condenser; controlling the reflux ratio, and refluxing the material in the tower top reflux tank; the reactive distillation column is provided with a height-adjustable side line extraction opening for extracting by-products such as anisole; and separating the reaction organisms through a flash tank to obtain diphenyl carbonate. The device integrates chemical reaction and rectification separation, methanol is separated from a material refluxed at the top of the tower, by-products such as anisole are extracted from a side line, the thermodynamic equilibrium of the reaction is broken, and the reaction is pushed to proceed in the positive direction, so that the conversion rate is increased, and meanwhile, a plurality of by-products are obtained; and the side line extraction position is adjustable, safe and convenient.

The utility model discloses a horizontal sealing device for a horizontal packaging machine, and relates to the technical field of packaging machinery. According to the transverse sealing device for the horizontal packaging machine, the film pressing assemblies are arranged on the two sides of the upper transverse sealing assembly, when the upper transverse sealing assembly moves downwards, the film pressing assemblies move downwards along with the upper transverse sealing assembly, the film pressing assemblies can make contact with a rolled film firstly compared with the upper transverse sealing assembly, the tension of the rolled film is kept in the process that the upper transverse sealing assembly and the lower transverse sealing assembly are meshed, seal and cut the film, and therefore the film pressing efficiency is improved. A film clamping heat insulation pad is arranged on one side of the upper transverse sealing assembly and one side of the lower transverse sealing assembly, knife lines are arranged on the other sides of the upper transverse sealing assembly and the lower transverse sealing assembly, and finally a packaging object with one sealed side and the other unsealed side is formed, so that the flatness of the opening end of the packaging object after sealing and cutting is ensured while the special packaging requirement is met, and then the packaging efficiency is improved.

A heat sink includes a top plate part and a radiating fin. One surface of the top plate part serves as a placement surface on which another member is placed, and a radiating fin is formed on the other surface of the top plate part. The top plate part has a clad structure in which an aluminum layer formed of aluminum or an aluminum alloy and a copper layer formed of copper or a copper alloy are subjected to solid-phase diffusion bonding. The average crystal grain size of the aluminum layer is set to be within a range of 50 µm or more and less than 500 µm, and a thickness of an Al-Cu intermetallic compound layer formed between the aluminum layer and the copper layer is set to be within a range of more than 10 µm and 40 µm or less.

The utility model relates to the technical field of steel cord production, in particular to a turning door handle structure of a steel cord double-twisting machine, which comprises a double-twisting machine box body, a turning door handle and a turning door handle, the first end of the double twisting machine overhead door is hinged to the double twisting machine box body, the second end of the double twisting machine overhead door is provided with a handle, the double twisting machine overhead door comprises a closing position and an opening position, the opening is covered when the double twisting machine overhead door is located at the closing position, and the rotating angle of the double twisting machine overhead door rotating from the closing position to the opening position is larger than or equal to 90 degrees; the first end of the air spring is hinged to the double-twisting machine box body, and the second end of the air spring is hinged to the double-twisting machine overhead door. The handle designed by the utility model is simple in structure, convenient to install, relatively easy to transform equipment and low in cost. And as the structure is small and exquisite, the handle can be adsorbed on the magnet when the equipment is in a running state, and the running in the machine is not influenced. The problem caused by the fact that a handle is too high when a worker closes the overhead door can be solved.

The present invention relates to a desulfurization device and a desulfurization method for collaboratively treating boiler flue gas and sulfuric acid tail gas; the device comprises a boiler tail gas system and a desulfurization system, and a sulfuric acid production device; the boiler tail gas system comprises a boiler, and the tail gas pipeline of the boiler is connected to a first pressure gauge; the desulfurization system comprises a middle and lower air inlet of a desulfurization tower, a first online analyzer is arranged at the top gas outlet of the desulfurization tower, a first packing layer is arranged at the inner upper part of the desulfurization tower, a first differential pressure gauge, a first upper flushing water spray device and a first lower flushing water spray device are arranged between the upper and lower sides of the first packing layer, and a first flushing water recovery device is arranged at the bottom of the first lower flushing water spray device; the outlet of the acid mist collector of the sulfuric acid production device is connected to the middle and lower air inlet of the desulfurization tower through a sulfuric acid tail gas pressure gauge, a pollutant detector and a first sulfuric acid tail gas air supply valve; the device has the characteristics of reasonable process design, low initial investment, low power energy consumption, high desulfurization efficiency, good desulfurization effect and environmental friendliness.

The invention relates to the field of pet feeding devices, and discloses a vacuum feeder which comprises a grain barrel with an inner cavity, an upper cover and a first annular sealing ring. An opening is formed in the top of the grain barrel, the first annular sealing ring surrounds the opening, and the upper cover presses the first annular sealing ring on the top of the grain barrel to seal the opening; the first annular sealing ring is of a hollow annular structure, a first annular protrusion is arranged on the annular face, used for bearing the first annular sealing ring, of the grain barrel, and the first annular protrusion faces the first annular sealing ring and surrounds the opening. According to the vacuum feeder, the gap between the upper cover and the grain barrel can be better sealed.