593results about How to "Small volume" patented technology

The invention discloses an integrated battery box body based on a double-circulation liquid cooling system, which comprises a box body, a battery area, a low-flow-rate pipeline, a high-flow-rate pipeline, a cooler and a liquid pump, a plurality of cooling plates are arranged in the battery area, and low-flow-rate flow channels and high-flow-rate flow channels are arranged in the cooling plates; the two ends of the cooling plate are provided with through openings and switching pipes which are in sliding sealing connection with the low-flow-speed flow channels and used for switching the high-flow-speed pipelines to be communicated with the high-flow-speed flow channels through sliding, and air bag assemblies used for pushing the switching pipes to slide through battery heat changes are arranged in the low-flow-speed flow channels. According to the invention, the battery box body is provided with a low-flow-rate pipeline and a high-flow-rate pipeline which can realize double circulation by only one liquid pump, so that the liquid cooling efficiency of the battery is enhanced; and the switching pipe and the airbag assembly are arranged in the cooling plate, so that the flow speed of the cooling liquid is automatically switched according to the battery temperature, and the liquid cooling efficiency of the cooling plate on the battery is enhanced.

The invention discloses a sewage sludge advanced treatment device, which belongs to the technical field of sludge treatment, and comprises a flocculation basin and a dehydration device, a concentration adjusting tank is arranged between the flocculation basin and the dehydration device, the inside of the tank is divided into a high-concentration area and a low-concentration area through a filter plate, the high-concentration area is provided with a first liquid inlet pipe, and the low-concentration area is provided with a second liquid inlet pipe; flowing into a dehydration device through a mixing pump; the filter plate is controlled by a driving mechanism to move so as to change the volume of the high-concentration area, and a first concentration detector is mounted on the first liquid inlet pipe and is used for moving the filter plate to reduce the volume of the high-concentration area when the first concentration detector detects that the concentration is lower than a threshold value; a control valve is installed on the second liquid inlet pipe and used for opening the control valve when the first concentration detector detects that the concentration is larger than the threshold value. The concentration regulating tank is arranged between the flocculation tank and the dehydration device to regulate the concentration of the sludge, so that the concentration of the sludge input into the dehydration device is stable, and the qualified rate of sludge caking is ensured.

The invention relates to the technical field of medical instruments, and discloses an isolation melting device and a pulp melting machine. The isolation melting device comprises a fixed frame which defines a mounting space; the movable support comprises a first support and a second support, one end of the first support is rotatably connected with one end of the second support, and the other end of the first support and the other end of the second support can move towards each other or away from each other; the bag body is provided with a bag opening and is connected with the first bracket and the second bracket; wherein the movable support can move into or out of the installation space, when the movable support moves into the installation space, the installation space limits the first support and the second support, the first support and the second support move oppositely, the bag body shrinks, and the area of the bag opening is reduced; when the movable support moves out of the installation space, the installation space relieves limiting of the first support and the second support, the first support and the second support move away from each other, the bag body expands, and the area of the bag opening is increased. Placement convenience of the plasma bag is improved, and heat exchange efficiency is improved.

The utility model discloses an oil-gas-water three-phase separation device based on combination of various efficient internals, which comprises an oil-water separator, and the front end of the oil-water separator is connected with a gas-liquid cyclone separator; an oil-water rotational flow pre-separator, a baffling type coalescence filler module, a honeycomb inclined tube filler module and an overflow partition plate are sequentially arranged in the oil-water separator along the flowing direction of materials; a first oil-water rapid separation module is arranged above the oil-water cyclone preseparator; a second oil-water rapid separation module is arranged above the honeycomb inclined tube filler module, and a water phase outlet is formed below the honeycomb inclined tube filler module; an oil chamber is formed on one side, far away from the oil-water cyclone pre-separator, of the overflow partition plate, an oil phase outlet is formed in the bottom of the oil chamber, and a gas phase outlet is formed above the oil chamber. The oil-gas-water three-phase separation device fully utilizes centrifugal separation and coarse graining coalescence separation principles to quickly separate oil-gas-water three-phase substances in produced liquid, and has the advantages of high separation efficiency, small occupied space and the like.

The invention relates to the technical field of infrared optical imaging, in particular to a low-sensitivity long-focal-length extremely-short-total-length medium-wave infrared zoom optical system, and aims to solve the problems that an existing medium-wave infrared zoom system is difficult to achieve long-focal-length zoom and has low sensitivity under the requirement conditions of large zoom ratio and extremely-short total length. The system is coaxially provided with a front fixed group, a zoom group, a compensation group, a rear fixed group, a secondary imaging group and a medium wave refrigeration detector along the direction of an optical axis, the front fixed group comprises a double-meniscus monocrystalline silicon lens and a double-meniscus monocrystalline germanium lens; the zoom group is a double-concave single crystal germanium lens; the compensation group is a double-convex monocrystalline silicon lens; the rear fixing group is a double-meniscus single crystal germanium lens; the secondary imaging group comprises a double-convex single crystal germanium lens, a straight surface single crystal germanium lens, a double-meniscus single crystal germanium lens and a meniscus single crystal silicon lens; the medium-wave refrigeration detector is coaxially and sequentially provided with a protection window, a cold diaphragm and a detector target surface, the protection window is located on one side close to an object space, and the detector target surface coincides with an image surface.

The invention relates to the technical field of marinated product detection and sampling, and discloses a marinated product processing sanitary safety detection brine sampling device which comprises a plurality of rotating supports installed on a base, one end of each rotating support is connected with a sampling mechanism, the base is provided with an operating rod capable of moving vertically, and the operating rod is used for driving the rotating supports to rotate. The sampling mechanism comprises a sampling barrel movably connected to the rotating support and a capacity regulation and control assembly arranged in the sampling barrel, and the capacity regulation and control assembly comprises a rubber sheet fixedly connected with a barrel body. When the rotating support drives the sampling barrel to move downwards, the pull rope drives the valve plate to leave the barrel cover and drives the tip of the rubber sheet to be arranged upwards at the same time, so that the internal volume of the barrel is reduced, and when the barrel is full of brine and the rotating support rotates reversely, the valve plate abuts against the barrel cover, and meanwhile the tip of the rubber sheet is arranged downwards, so that the internal volume of the barrel is increased. The liquid level of the brine is lower than the port of the barrel, so that quantitative brine can be quickly obtained, and the brine is prevented from overflowing.

A fused salt energy storage coupled CO2 air source heat pump water heater cascade energy storage steam supply system comprises a first-stage energy storage system and a second-stage energy storage system, the first-stage energy storage system comprises a softened water tank, and a water inlet of the softened water tank is connected with a water outlet of a softened water treatment device through a water conveying pipeline; a water outlet of the softened water tank is connected with a water inlet of a heated channel of a condenser of the carbon dioxide air source heat pump water heater through a softened water pipe connected with a softened water pump in series, and a water outlet of the heated channel of the condenser is connected with a water inlet of the heat storage water tank through a first-stage hot water pipe. A high-temperature and high-pressure gaseous carbon dioxide inlet of the heat dissipation channel of the condenser is connected with a circulating medium outlet of the carbon dioxide compressor through a pipeline. According to the cascade energy storage and steam supply system of the fused salt energy storage coupled CO2 air source heat pump water heater, the electricity price advantage of electricity in the off-peak period is fully utilized, the operation cost of a steam supply system of an enterprise can be reduced, and finished steam with the lower cost is provided for the enterprise.

The invention discloses an assembled clothes hanger and a connecting component thereof. The assembled clothes hanger according to an embodiment of the present invention comprises a pair of support units including a pair of first support rods, a second support rod, a pair of first coupling heads, a pair of second coupling heads, and a pair of third coupling heads, thereby respectively supporting corresponding first main frame rods in a first pair of first main frame rods and a second pair of first main frame rods, wherein the pair of first combination heads are located at one ends of the pair of first bearing rods, the pair of second combination heads are located at the two ends of the second bearing rods and connected with the pair of first combination heads, and the pair of third combination heads are located at the other ends of the pair of first bearing rods. Therefore, according to the assembly type clothes hanger, through the first combination head, the second combination head and the third combination head of the bearing unit, the assembly convenience can be improved, the firmness of the assembly type clothes hanger in the assembly state or the use state can be ensured, and meanwhile the size which is possibly limited by the bearing unit when the assembly type clothes hanger is packaged and sold is reduced.

The invention discloses a distillation separation mechanism and method of a cyanate ester synthesis reaction device, and belongs to the field of cyanate ester synthesizing.The mechanism comprises a distillation assembly, a first collection assembly for collecting cyanogen chloride and hydrogen chloride, a second collection assembly for collecting bisphenol compounds and a third collection assembly for collecting cyanate ester, in the second collection assembly, a second condensation pipe is connected between a second collection cylinder and the distillation cylinder, a second condensation cylinder is sleeved on the pipe, a sliding plate in the second collection cylinder is connected with a piston rod and an insertion rod, and a tension spring is arranged between the piston rod and a piston cylinder. Pressure passes through the branch pipe to enable the piston rod to move downwards, the sliding plate to descend, the volume of the communication space to descend, boiling is slowed down, the insertion rod moves downwards to enable the second collection barrel to ascend, the condensation pipe to incline and liquid drops to flow back, and the cyanate collection amount is ensured.

The utility model provides a mechanical drainage shower device which comprises a water mixing device which comprises a water inlet end and a water outlet end, the water inlet end is connected with a cold water pipeline and a hot water pipeline, the water outlet end is connected with a main pipeline, and the main pipeline comprises a drainage branch and a plurality of water outlet branches. The pre-drainage device comprises a drainage valve, a water outlet valve, a drainage port, a drainage channel and a water outlet channel, the drainage channel and the water outlet channel are communicated with the drainage branch and the drainage port respectively, the drainage valve is used for controlling opening and closing of the drainage channel, and the water outlet valve is used for controlling opening and closing of the water outlet channel; the shell, the water mixing device and the pre-drainage device are both arranged in the shell, the shell is provided with a water outlet button used for controlling the water outlet valve, a pre-drainage switch and a plurality of shower switches, the pre-drainage switch and the shower switches are respectively used for controlling the water outlet branch and the water outlet branches to be opened and closed, and the water outlet branches and the water outlet are respectively connected to corresponding showers. Therefore, cold water pre-drainage of the shower device can be achieved through the mechanical switch, and the adaptability of the shower device to old users is improved.

The invention discloses an automatic heating wire welding device for electronic cigarette production, which comprises a welding table, a laser generator, a focusing tube and a supporting table plate fixedly mounted on one side of the welding table, mounting racks are arranged on two sides of the upper end of the focusing tube, and the mounting racks are fixedly mounted on the supporting table plate. Circuit data are monitored in real time through a power supply monitor, when a protective layer on the surface of a heating wire is thick and resistance is large, the voltage of current passing through an electromagnet is low, magnetorheological fluid flows slowly under the action of shear stress, a multistage electric push rod continuously pushes a piston piece to enable a pressing pipe to stretch out, and meanwhile the power supply monitor feeds back the data to a laser generator. And on the contrary, when the protective layer is thin and the resistance is small, the shear stress of the magnetorheological fluid is large, the multi-stage electric push rod stops pushing, the power supply monitor feeds back data, the laser generator reduces the power, and over-welding is prevented, so that the stable welding quality is ensured, and the reliability and the stability of welding of the heating wire and the electronic cigarette end are improved.

The invention provides an innovative rapid screening process of a novel liquid-liquid phase change absorbent for CO2 capture. According to the method, system components are screened by dropwise adding a physical solvent and water, the composition and the load interval of the phase change solvent are determined, and the split-phase load critical value is accurately determined by adopting a back titration method. The screening process is simple and efficient in step, is suitable for various complex liquid-liquid phase change solvent systems, greatly improves the solvent screening efficiency, and is particularly suitable for efficient solvent screening for CO2 capture. The absorbent screened by the process shows excellent CO2 absorption performance at normal temperature and normal pressure, and has the advantages of easy control of phase change conditions, low regeneration energy consumption and the like. The absorbent is not only suitable for CO2 capture of industrial emission sources of coal-fired power plants, cement plants, steel plants and the like, but also suitable for CO2 emission reduction and resource utilization processes in various environmental protection scenes.

The utility model provides a tail gas pre-washing, pressurizing and cryogenic system, which relates to the technical field of polycrystalline silicon production and comprises a tail gas pre-washing device and a tail gas pressurizing and cryogenic device, the tail gas pre-washing device is used for removing dust from dust-containing tail gas; the tail gas pressurizing and copious cooling device comprises a compressor, an air cooler, a tail gas condensate tank, a second heat exchanger and a tail gas copious cooler which are connected in sequence; after a stream of a gas phase outlet of the tail gas condensate tank enters the second heat exchanger, a first condensed stream and a first gas phase stream are obtained; the first gas-phase stream enters a tail gas deep freezer to obtain a second condensation stream and a second gas-phase stream; and the second gas-phase stream flows through the second heat exchanger and then enters a tail gas leaching system at the rear end. And the problems of abrasion of the compressor and blockage of the interstage cooler are solved by dedusting the dust-containing tail gas. An air cooler, a tail gas condensate tank, a second heat exchanger and a tail gas deep freezer are additionally arranged on the basis of a compressor, chlorosilane can be recycled, and the load of a tail gas leaching system can be reduced.

The utility model relates to a tubular ultrasonic coagulation inclined tube sedimentation tank, which belongs to the field of sewage treatment equipment and comprises a lifting pump, an ultrasonic generation component and an inclined tube sedimentation tank. The ultrasonic generation assembly comprises a frequency-adjustable ultrasonic generator, a tubular ultrasonic coagulation reactor, an ultrasonic transducer, an ultrasonic amplitude-change pole and an ultrasonic emission head; the ultrasonic emission head is connected with the tubular ultrasonic coagulation reactor, and the frequency-adjustable ultrasonic generator is connected with the ultrasonic transducer; the ultrasonic amplitude-change pole is connected between the ultrasonic transducer and the ultrasonic emission head; an outlet of the lifting pump is communicated with a water inlet of the tubular ultrasonic coagulation reactor; a water outlet of the tubular ultrasonic coagulation reactor is communicated to the inclined tube sedimentation tank through a pipeline; the device is simple in structure, high in reaction speed, small in size, capable of being directly installed on a pipeline for use, adjustable in reaction strength and long in service life. The solid-liquid separation efficiency of the inclined tube sedimentation tank can be improved, and the effect of removing SS, TP, COD, algae, turbidity and the like is achieved.

The invention discloses a fuel cell system which comprises a hydrogen supply system, an air supply system, a proton exchange membrane fuel cell stack and a cooling system, and the cooling system, the hydrogen supply system and the air supply system are connected with the proton exchange membrane fuel cell stack. The hydrogen supply system and the air supply system are arranged to realize oxygen starvation of the proton exchange membrane fuel cell stack by respectively adjusting hydrogen flow and air flow during cold start; the cooling system comprises a radiator assembly and a water pump connected with the proton exchange membrane fuel cell stack, and the water pump does not work during cold start. According to the fuel cell system, heat dissipated in the self-starting process is increased in an oxygen starvation mode, the situation that too much water is generated in the galvanic pile and is condensed into ice to block a flow channel is avoided by changing the current density of the galvanic pile in the cold starting process, and the failure of low-temperature cold starting of the fuel cell system can be avoided. The invention also discloses a low-temperature cold start method of the fuel cell system.

The invention relates to a portable standard gas supply device and method. The portable standard gas supply device comprises a gas source, a pressure reducing valve, a high-pressure stop valve, a pressure stabilizing chamber, a micrometering valve, a gas distribution chamber, an absolute pressure sensor, a first capacitance film gauge, a second capacitance film gauge, a Pirani vacuum gauge, a first high-vacuum angle valve, a second high-vacuum angle valve and a vacuumizing system. According to the portable standard gas supply device and method, through reasonable design, the device and the pipeline have the functions of heating, gas extraction and purification, replacement, portability and the like, the gas purity is guaranteed from the source, pollution of residual gas or organic matter is reduced, measurement errors caused by unreasonable design are reduced, and the measurement accuracy is improved. The accuracy of the prepared standard gas pressure and components is ensured to the maximum extent; the gas distribution precision is improved, the uncertainty of the gas distribution concentration is reduced, the requirement of field dynamic gas distribution can be met, and the method is simple, feasible and easy to operate.

The invention discloses a novel compressor integrated structure, which belongs to the technical field of vehicle thermal management systems, and comprises a compressor, the compressor is provided with a compressor suction cavity, a compressor exhaust cavity and a compressor cylinder body, the novel compressor integrated structure further comprises a chiller and / or a water-cooled condenser, the compressor suction cavity is connected with the chiller, and the compressor exhaust cavity is connected with the water-cooled condenser; due to the fact that the water-cooling condenser, the chiller and the compressor are integrated, and meanwhile the liquid storage channel, the refrigerant channel, all the valves, the sensor and the compressor are integrated, the number of parts is reduced, and the assembling workload is reduced; and all refrigerant loop components are directly mounted on the compressor cylinder body, and the refrigerant loop and the compressor cylinder body are integrated, so that the internal volume of a loop system of related refrigerants is greatly reduced, and the refrigerant filling amount of the system is reduced.

The utility model discloses an automatic feeding device of a thread rolling machine and the thread rolling machine comprising the feeding device. The automatic feeding device of the thread rolling machine comprises a stock bin, a jacking mechanism and a V-shaped groove. One end of the stock bin is a feeding port, the other end of the stock bin is provided with the jacking mechanism and the V-shaped groove, and the face, used for containing pipes, of the stock bin is an inclined face and inclines downwards towards the side where the jacking mechanism is located. The clamping device is characterized in that a pushing device is arranged at one end of the V-shaped groove, a limiting baffle is arranged at the other end of the V-shaped groove, an in-place detector is arranged on the limiting baffle, a displacement detection sensor is arranged on the side face of the V-shaped groove, and at least two clamping positions are arranged on the V-shaped groove. According to the utility model, the automatic feeding of common pipes with the length of 30mm-350mm can be realized through the arrangement of the pushing device, and the automatic clamping of pipes with different lengths can be realized through the arrangement of a plurality of clamping positions.

The invention belongs to the field of sewage treatment processes. The front pollutant enrichment sludge discharge energy-saving AAO process comprises the following steps: step 1, carrying out sewage filtration treatment; 2, the pretreated sewage enters an anaerobic tank, and a stirrer is arranged in the anaerobic tank for stirring; 3, the sewage above the side drainage tank enters an anoxic tank, and a stirrer is arranged in the anoxic tank for stirring; 4, the sewage treated in the step 3 enters a settling pond, sludge is settled to the bottom through the settling pond, and treated clear water on the upper layer is discharged; all sludge in the sedimentation tank flows back into the anaerobic tank, part of the sludge after adsorption and absorption of carbon source organic substances enters the side discharge tank, and the side discharge tank discharges the sludge regularly; the process is simple to operate, low in cost and better in economic benefit, the incoming water load of a biochemical unit can be reduced, and the impact on a biochemical system caused by large fluctuation of the incoming water concentration can be relieved.

The invention discloses a high-voltage switch electrical life evaluation method and system based on an environment-friendly gas decomposition rate. The method comprises the following steps: calculating a rated mole number of environment-friendly gas in environment-friendly mixed gas; carrying out an on-off test, and calculating arcing energy corresponding to each on-off current; obtaining the reduced volume ratio of the environment-friendly gas after the on-off test of the high-voltage switch under each on-off current is finished, and obtaining the reduced mole number of the environment-friendly gas corresponding to each on-off current based on the reduced volume ratio; based on the reduced mole number and the corresponding arcing energy, determining the decomposition mole number of the environment-friendly gas corresponding to each breaking current under unit energy; acquiring actual arcing energy, determining an environment-friendly gas decomposition amount corresponding to each breaking current based on the actual arcing energy and the decomposition mole number of the environment-friendly gas corresponding to the corresponding breaking current under unit energy, and summing to determine the total environment-friendly gas decomposition amount; and evaluating the electrical life of the target high-voltage switch according to the total decomposition amount of the environment-friendly gas and the rated mole number.

The invention provides a high-power amplitude limiter with a filtering characteristic. The high-power amplitude limiter comprises a first amplitude limiting module connected with an input port, a second amplitude limiting module connected with an output port and an intermediate cascade module. The first amplitude limiting module comprises a first amplitude limiting circuit and a first reactance module; the first amplitude limiting circuit and the first reactance module are connected in series to a main transmission line of the amplitude limiter. The second amplitude limiting module comprises a second amplitude limiting circuit and a second reactance module; the second amplitude limiting circuit and the second reactance module are connected in series to the main transmission line of the amplitude limiter; the two ends of the middle cascade module are connected in series with inductive reactance elements and then connected to the amplitude limiter main transmission line, and the middle of the middle cascade module is connected in parallel with capacitive elements and then grounded. According to the technical scheme, the original in-band excellent electromagnetic protection characteristic of the amplitude limiter can be ensured while the filtering characteristic is realized, the performance deterioration of a radio frequency receiving signal caused by cascade mismatch of the amplitude limiter and a radio frequency channel post-stage filter is avoided, and the total volume ratio of a radio frequency channel electromagnetic protection device is effectively reduced.

The utility model discloses a carbonized steel slag aggregate preparation device, and relates to the field of building material preparation and carbon capture. The device comprises a carbonization device, a flue gas discharge pipe, a flue gas inlet pipe, a rotary carrier roller, a flue gas distributor, a gas guide pipe, a distributing device and a feeding conveying belt, the feeding conveying belt is installed above one side of the carbonization device, the flue gas inlet pipe is installed below the other side of the carbonization device, the flue gas inlet pipe is communicated with the flue gas distributor, and the rotary carrier roller is communicated with the flue gas distributor. A smoke distributor is arranged in the carbonization device, a rotating carrier roller is arranged below the smoke distributor, a distributing device and a gas guide pipe are arranged in an inner cavity of the carbonization device, the distributing device is located at the discharging position of the feeding conveying belt, the gas guide pipe is located below the distributing device, and a smoke discharging pipe is arranged at the top of the carbonization device. The carbonization device has the beneficial effects that the carbonization device is simple in structure, convenient to operate and easy to realize, the double targets of large-scale absorption of the steel slag and carbon emission reduction are realized, and the prepared mortar steel slag aggregate can meet the requirement of large-scale absorption of the steel slag.

The permanent magnet comprises, by mass, REaNbFe100-a-b-c-dCocBd, RE is a combination of two or more of rare earth elements including lanthanum, cerium, praseodymium and neodymium and must contain the cerium element, the mass percentage of the cerium element is not lower than 6%, N is one or more of aluminum, copper, gallium and zirconium, the sum of the mass percentage of the elements is not lower than 6%, the sum of the mass percentage of the elements is not lower than 6%, the sum of the mass percentage of the elements is not lower than 6%, and the sum of the mass percentage of the elements is not lower than 6%. The permanent magnet is prepared from two raw materials including a main phase alloy and an auxiliary phase alloy through double-alloy formation, the main phase alloy comprises a cerium element, and the auxiliary phase alloy comprises a cobalt element; through the addition of the cobalt element, the precipitation of the CeFe2 phase can be reduced, a new main phase is formed, the main phase volume ratio of the permanent magnet is increased, the problem of magnetic performance deterioration caused by the addition of the cerium element is avoided, and the prepared cerium-containing rare earth permanent magnet has high coercive force.

The invention provides a double-cylinder air compressor, and belongs to the technical field of air compressors. The technical problem that an existing double-cylinder air compressor is large in noise is solved. The device comprises a crankcase, a driving motor is fixedly connected to the crankcase, the driving motor comprises a motor shaft, one end of the motor shaft extends into the crankcase, air cylinders are fixedly arranged on the two sides, perpendicular to the driving motor, of the crankcase respectively, and two connecting rods are fixedly connected to the motor shaft in a rotating mode. The ends, away from the motor shaft, of the two connecting rods are fixedly connected with pistons respectively, the two pistons are located in air cylinders respectively, the air cylinders are communicated with corresponding air outlet holes, the crankcase is communicated with an air inlet hole, and the air inlet hole can be communicated with the two air cylinders at the same time. The noise reduction device has a better noise reduction function.

The invention discloses a double-acting piezoelectric air pump which comprises a pump body with a cavity, a first diaphragm valve plate, a vibrator and a second diaphragm valve plate, wherein the first diaphragm valve plate, the vibrator and the second diaphragm valve plate are transversely arranged in the cavity. A first air inlet is formed in the first diaphragm valve plate, a second air inlet is formed in the second diaphragm valve plate, a discharge channel, a first air inlet channel, a second air inlet channel, a first air outlet channel, a second air outlet channel, a first convex column and a second convex column are arranged on the pump body, and the discharge channel communicates with the first air outlet channel and the second air outlet channel; in the process that the vibrator deforms and displaces in the direction close to the first convex column, the first convex column is in clearance fit with the first air inlet, and the second convex column is separated from the clearance fit with the second air inlet; in the process that the vibrator deforms and displaces in the direction close to the second convex column, the first convex column is separated from the clearance fit with the first air inlet, and the second convex column is in clearance fit with the second air inlet; the air pumping efficiency and the exhaust flow are greatly improved.

The invention belongs to the technical field of printing equipment, and particularly relates to a three-bin efficient rotating bin type printed board vacuum hole plugging machine and a printed board conveying method.The three-bin efficient rotating bin type printed board vacuum hole plugging machine comprises a shell, the shell is provided with a printing bin, a feeding bin and a discharging bin, and a machining table is located in the printing bin; the feeding bin and the discharging bin are both located at the top of the printing bin, and each of the feeding bin and the discharging bin is provided with a bottom bin opening and a top bin opening; the upper covers correspond to the feeding bins and the discharging bins in a one-to-one mode, and the feeding device, the discharging device and the transferring device are located in the printing bin. The feeding device is vertically opposite to the feeding bin, the discharging device is vertically opposite to the discharging bin, and the feeding device and the discharging device each comprise a lifting table used for containing a printed board. The transferring device is used for conveying printed boards between the lifting table of the feeding device and the machining table and between the lifting table of the discharging device and the machining table. The volume needed by the feeding bin and the discharging bin is small, the time needed for vacuumizing is short, and the overall printing efficiency of the vacuum hole plugging machine is higher.

The high-concentration degradation-resistant wastewater treatment system comprises a hydrolysis acidification tank, an anaerobic reactor, an intermediate water tank, an aerobic granular sludge reaction tank and an MBR (membrane bioreactor) which are sequentially communicated in the wastewater flow direction, part of effluent of the anaerobic reactor flows back to the hydrolysis acidification tank for retreatment, and the rest of the effluent enters the intermediate water tank; the effluent of the middle water tank respectively enters an aerobic granular sludge reaction tank for decarbonization, denitrification and dephosphorization treatment and enters an MBR (Membrane Bioreactor) to make up the demand of denitrification on a carbon source; through coupling linkage and synergistic effect of the hydrolytic acidification reaction tank, the anaerobic reactor, the aerobic granular sludge reaction tank and the MBR bio-membrane reactor, the effluent concentration is controlled. A hydrolysis acidification pool and an anaerobic reactor are combined for internal circulation of a water outlet part, impact of high concentration on the anaerobic reactor is reduced, biogas produced by the anaerobic reactor is used for power generation, energy recovery and energy consumption saving, the purposes of energy conservation and emission reduction are achieved, and the problems that an existing treatment device and technology are tedious in process, long in hydraulic retention time and low in cost are solved. And meanwhile, the treatment effect is improved.

The invention discloses a treatment method for rapidly preparing a carbon source from kitchen garbage. The treatment method comprises the following steps: pretreating the kitchen garbage to obtain slurry; carrying out fermentation treatment on the slurry by using hydrolytic acidification microorganisms so as to quickly hydrolyze and acidify the slurry; heating the material obtained by fermentation, and then carrying out three-phase separation to obtain grease, high-protein solid residues and centrifugate; centrifugate dephosphorization coupled particulate matter coagulating sedimentation: adjusting the pH value of the centrifugate to 6.5-10.5, and sequentially adding a flocculating agent, a dephosphorization agent and a coagulant; separating flocs to obtain high-protein solid residues and a high-quality carbon source. The method disclosed by the invention has the advantages that kitchen garbage is subjected to high-efficiency and low-cost resourceful treatment and is converted into a denitrification high-quality carbon source with low phosphate and no suspended particulate matters for sewage treatment, and meanwhile, grease capable of being used for refining biodiesel and resourceful products such as solid residues for preparing high-protein feed for breeding insects such as hermetia illucens and the like are generated; and full-quantization high-level utilization of organic matter resources is realized.

An optimized damping opening and closing structure of a furniture hinge comprises a hinge cup and a connecting arm that are hinged to each other for opening and closing through a hinge arm assembly, wherein the hinge arm assembly comprises at least an inner hinge arm, which is hinged to the hinge cup and the connecting arm respectively, and an action portion is extended thereon; a damper is arranged on the connecting arm, and the damper comprises at least a cylinder body, and a groove portion is arranged on the cylinder body; when the hinge cup is hinged to open and close relative to the connecting arm, the inner hinge arm acts on the groove portion of the cylinder body through the action portion, and the cylinder body resets and slides and / or compresses and slides on the connecting arm through the interaction between the groove portion and the action portion, so as to realize automatic reset of the damper and / or damping closing of the furniture hinge. The present invention has the characteristics of simple and reasonable structure, reliable performance, high flexibility of use, low manufacturing cost, long service life, easy production, easy realization, exquisite appearance and high safety, and strong practicality through the improvement of the above structure.

The invention discloses a blast furnace full coke smelting method. The blast furnace full-coke smelting method comprises the following steps: obtaining smelting data of a blast furnace in a normal production state, and determining a coke load and a coke supplementing amount of the blast furnace in a full-coke smelting state according to the smelting data; when the coal injection system of the blast furnace cannot inject coal, blast furnace oxygen-enriched blast of the blast furnace is stopped for oxygen enrichment, so that the blast furnace enters a full-coke smelting state; adding and supplementing coke into the blast furnace, and adding ore and coke into the blast furnace according to the coke load in the blast furnace full-coke smelting process; and according to a preset air volume control rule, adjusting the furnace inlet air volume of the blast furnace until one full-coke smelting period is completed. Smooth transition of the full-coke smelting process of the blast furnace can be achieved, impact on furnace temperature and furnace conditions due to unscientific adjustment in the full-coke smelting transition period is greatly relieved, and the smelting cost is reduced.