9044results about How to "Fully contacted" patented technology

The invention relates to the technical field of powder metallurgy forming, and discloses a compressor valve plate forming device for powder metallurgy and a forming method thereof.The forming device comprises a lower die body, a guide support is fixed to the lower die body, an upper die body is slidably connected to the guide support, and a servo hydraulic cylinder is fixed to the top of the guide support; a servo hydraulic cylinder is arranged on the lower die body, the telescopic end of the servo hydraulic cylinder is fixedly connected with the upper die body, a forming groove is formed in the lower die body, a forming head is arranged on the upper die body, a feeding box is arranged on the lower die body, and a push rod assembly used for adjusting the working position of the feeding box is fixed to one end of the lower die body. The metal powder can be uniformly distributed in the forming groove, so that the thickness of a formed workpiece is uniform, a lubricant can be conveniently and quantitatively sprayed into the metal powder, the flowing property of the metal powder is improved, and the machining quality of the workpiece is improved.

The invention discloses a plastic part injection molding excess material recycling mechanism, and belongs to the technical field of injection molding excess material recycling. The plastic part injection molding excess material recycling mechanism comprises a shell, a partition plate is vertically arranged in the shell, a discharging plate is horizontally connected between the shell and the partition plate, and a feeding groove plate is arranged on one side wall of the shell; a discharging frame and a movable door are arranged on the front side wall and the rear side wall of the shell correspondingly, the discharging frame corresponds to the discharging plate, a cleaning assembly located below the discharging plate is arranged in the shell, the cleaning assembly corresponds to the feeding groove plate, a transferring assembly is arranged on the side, away from the cleaning assembly, of the partition plate, and a smashing assembly located above the discharging plate is arranged on the inner side of the shell. And a screening assembly corresponding to the movable door is movably arranged between the crushing assembly and the discharging plate, a drying assembly matched with the transferring assembly and the screening assembly is arranged on the shell, and the device has the advantages of comprehensive cleaning, stable transferring, rapid crushing, reciprocating screening, double drying, reliable structure and easy and convenient operation.

The invention relates to the technical field of turning machining, in particular to a numerical control turning machine tool for fastener machining, which comprises a machine shell, a tool rest column body, a tool apron body and a chuck, and further comprises a surface cover shell bolted to the tool apron body, a plurality of auxiliary rollers are rotatably connected to the inner side of the cover shell, a magnetic synchronous belt is further arranged on the inner side of the cover shell, and the magnetic synchronous belt is arranged on the outer side of the tool apron body. The side, close to the housing, of the tool apron body is further in bolting connection with a fixing plate, and the surface of the fixing plate is in bolting connection with a square electromagnet. The square electromagnet is started, and when the tool apron body moves, metal chips on the top and the side edge of the tool rest column body are attracted to the surface of the magnetic synchronous belt, so that the situation that the magnetic synchronous belt is directly contacted with the tool rest column body to be stained and damaged in a large area is avoided; in the process of adsorbing the metal chips, the metal chips cannot move slightly on the surface of the tool rest column body, the tool rest column body is not prone to being abraded, and the service life of the tool rest column body is prolonged.

The invention relates to the technical field of sewage treatment, in particular to aerobic granular sludge integrated sewage treatment equipment which comprises an aerobic tank, and the aerobic tank comprises an outer tank body and an inner tank body; a turntable is rotationally mounted on the inner bottom surface of the inner tank body, and a plurality of groups of aeration mechanisms are also fixedly mounted on the turntable; the aeration mechanism comprises an aeration assembly, a dredging assembly is arranged on the aeration assembly, and a pressing assembly used in cooperation with the dredging assembly is arranged on the inner wall of the inner tank body; a driving mechanism is fixedly mounted on the top surface of the inner tank body and is in transmission connection with the periphery of the hollow shaft; a transmission assembly is arranged on the periphery of the hollow shaft and is in transmission connection with a plurality of floating foam cleaning assemblies. According to the sewage treatment device, the floating foam cleaning step can be transferred into the settling zone in the sewage treatment process, and cleaning is relatively easy. The dredging assembly is sequentially and periodically pressed by the pressing assembly, so that the aeration assembly is periodically and automatically dredged.

The invention discloses an agricultural solid waste contaminated soil remediation device, and relates to the field of soil remediation, the agricultural solid waste contaminated soil remediation device comprises a base plate, a storage box and a first liquid outlet pipe, the bottom of the base plate is fixedly connected with four electric wheels, the upper portion of the base plate is fixedly connected with a handheld handrail, the storage box is fixedly connected to the upper portion of the base plate, and the first liquid outlet pipe is fixedly connected to the base plate; the upper end of the first liquid outlet pipe penetrates through the base plate to communicate with the storage box, the bottom of the base plate is fixedly connected with a first extension plate, and the first extension plate is fixedly connected with a first motor. According to the device, soil on the filter plate is vibrated, so that the soil leaks out of filter holes in the filter plate, and building concrete stones larger than the filter holes cannot fall off; and the concrete stones embedded in the soil can be effectively removed, and the blocking of the stones can be reduced during the subsequent injection of the repairing liquid, so that the repairing liquid can be fully permeated into the soil.

The gas purification device comprises an outer barrel, an adjusting groove is formed in the outer barrel, an adsorbent box is slidably connected into the adjusting groove, the bottom end of the adsorbent box and the bottom end in the adjusting groove are magnetically adsorbed, a jacking device for automatically adjusting the height of the adsorbent box is arranged in the outer barrel, and a discharging opening is formed in the side end of the outer barrel in a penetrating mode; the discharging port is in through connection with the adjusting groove, a mounting groove is formed in the discharging port, and a baffle for preventing the adsorbent in the adsorbent box from being discharged from the discharging port is slidably inserted into the mounting groove; through the synergistic effect of an ejector rod and a first spring in the jacking device, the height of the adsorbent box can be automatically adjusted according to the weight of an adsorbent in the adsorbent box, it is ensured that the adsorbent box is located at the optimal working height all the time, and through linkage of the ejector rod and an elastic rope, automatic opening and closing of a baffle are achieved, and adsorbent leakage is prevented; according to the automatic control system, the operation process is simplified, and the automation degree of the system is improved.

The invention provides an ardealite road base material and a preparation method thereof, and belongs to the field of road base materials. The road base material is prepared from the following raw materials in parts by weight: 850 to 900 parts of phosphogypsum, 5 to 15 parts of quick lime, 40 to 60 parts of cement, 55 to 85 parts of composite curing agent and 8.5 to 13 parts of curing exciting agent. The phosphogypsum is modified, so that soluble phosphorus and soluble fluorine in the phosphogypsum are cured; the curing exciting agent is atomized and added into the mixture of the modified phosphogypsum, the cement and the composite curing agent, so that all the components are in full contact, the hydration effect is promoted, and the strength and stability of the base material are improved. The pavement base material provided by the invention consumes a large amount of phosphogypsum, can effectively relieve the problem of accumulation of a large amount of phosphogypsum, reduces environmental pollution, has good mechanical properties, water stability and durability, is applied to highway construction, and has important environmental protection significance and social benefits.

The invention relates to the technical field of pipeline cleaning, in particular to an oil pipe cleaning device and a cleaning technology.The oil pipe cleaning device comprises a mounting pipe, a fixed shaft is rotationally arranged in the mounting pipe, a driving assembly used for controlling the fixed shaft to rotate is arranged in the mounting pipe, and a sliding pipe is arranged on the outer surface of one end of the fixed shaft in a circumferential rotating and axial sliding mode; a plurality of cleaning assemblies are fixedly arranged on the outer surface of the sliding pipe. The pipeline cleaning device has the beneficial effects that the brush piece rotates in the circumferential direction and axially slides in a reciprocating mode at the same time to clean the pipe wall, the brush and the inner wall of the pipeline can be rubbed many times, dirt, oil stains, incrustation and other sediments in the pipeline are more effectively removed, the cleaning efficiency is improved, the cleaning time is shortened, and the cleaning efficiency is improved. The brush pieces shake when the inner wall of the pipeline is cleaned, the brush pieces can make more sufficient contact with the inner wall of the pipeline, bristles are further helped to go deep into tiny gaps in the inner wall of the pipeline, dirt and sediment are more effectively removed, and the risk of pipeline blockage is reduced.

The invention discloses a high-power offshore semi-direct-drive permanent magnet wind driven generator cooling system which comprises an outer stator and an inner rotor, the outer stator comprises a motor base, a stator iron core and a stator winding assembled on the stator iron core are installed in the motor base, and an air-water cooler is installed on the upper portion of the motor base. A flow guide plate is arranged in the air-water cooler, a heat dissipation core body is installed at the position, located at the bottom of the flow guide plate, in the air-water cooler, and the flow guide plate is used for enabling hot air exhausted out of the motor to pass through the heat dissipation core body to form a plurality of parallel air paths in the air-water cooler. And the plurality of air paths connected in parallel respectively perform cold and heat exchange with the interior of the motor so as to reduce the air resistance in the motor and the air-water cooler. The cooling system has the characteristic of low wind resistance, the power of the air cooling driving motor used by the cooling system can be reduced, the cost of the cooling system is reduced, and the heat dissipation efficiency is improved.

The invention provides a preparation method of modified recycled coarse aggregate and recycled concrete, and the preparation method comprises the following steps: carrying out vacuum treatment on the recycled coarse aggregate to obtain pretreated recycled coarse aggregate; the preparation method comprises the following steps: adding a nano modifier and a dispersant into water, and stirring to obtain a nano modifier mixed solution; in a vacuum environment, adding and immersing the pretreated recycled coarse aggregate into a nano modifier mixed solution, starting to soak the recycled coarse aggregate, introducing carbon dioxide for carbonization treatment while soaking, taking out the recycled coarse aggregate after a period of time, and drying the recycled coarse aggregate until the weight of the recycled coarse aggregate is constant to obtain modified recycled coarse aggregate; and finally, preparing the recycled concrete by using a mixed solution of the modified recycled coarse aggregate and the nano modifier soaked with the recycled coarse aggregate. The vacuum pretreatment process, the nano-modification process and the carbonization treatment process are effectively integrated, so that the vacuum pretreatment process, the nano-modification process and the carbonization treatment process are mutually assisted, and the performance of the recycled coarse aggregate is jointly optimized, so that the performance of the recycled concrete is improved.

The utility model relates to the technical field of automatic defrosting, and provides an automatic defrosting mechanism of an air source heat pump, which comprises an air source heat pump body and a heat exchange evaporator, the heat exchange evaporator comprises a heat exchange fin, a defrosting pipe is fixedly mounted on the heat exchange fin, the air source heat pump body is communicated with a cold water pipe and a hot water pipe, and the cold water pipe is communicated with the hot water pipe. A heat preservation heating box is fixed to the outer wall of the air source heat pump body and communicated with a first water guide pipe, the first water guide pipe is communicated with one end of the defrosting pipe, the hot water pipe is further communicated with a water inlet pipe, the water inlet pipe is communicated with the heat preservation heating box, and the communication position is controlled by an electromagnetic control valve. The second water guide pipe communicates with a one-way water valve. The water inlet pipe is additionally arranged on the hot water pipe of the automatic defrosting mechanism of the air source heat pump and matched with the first water guide pipe, the defrosting pipe and the second water guide pipe, the heat exchange evaporator is defrosted, it is guaranteed that the heat exchange evaporator makes full contact with outside air, and the working efficiency of the heat exchange evaporator is not affected.

The invention provides a multi-steel-pipe automatic hot galvanizing device which comprises a first material distribution slide way, a first material stirring fluted disc, a middle shaft, a truss and a lifting plate, the first material distribution slide way is sequentially provided with a plurality of material passing gaps from inside to outside, and each material passing gap is used for guiding one to-be-produced steel pipe; and the outlet end of each material passing gap corresponds to a magnetic suction roller of one V-shaped magnetic roller. According to the automatic hot galvanizing device for the multiple steel pipes, the first material distributing sliding way is infiltrated in the zinc melting pot, the multiple steel pipes can be distributed through the first material distributing sliding way to slide into the zinc melting pot, so that each steel pipe can make full contact with liquid zinc, the positions of the steel pipes in the zinc melting pot can be stirred through the first material stirring fluted disc, and the steel pipes can be separated from the zinc melting pot through the first material stirring fluted disc; the steel pipes are lifted to the preset position through the lifting plate, the steel pipes are guided out through the V-shaped magnetic rollers, the multiple steel pipes can be galvanized at the same time through the device, the production efficiency is improved, and the production quality is guaranteed.

The invention discloses a treatment process for acid mine wastewater and a combined reactor thereof, and relates to the technical field of water treatment. The method specifically comprises the following steps: oxidizing the mine acid wastewater through an aerobic reactor; adjusting the pH value to 2.8 by using KOH in a first neutralization reactor, and further adjusting the pH value to 4.5 by using KOH in a second neutralization reactor; the wastewater enters a pretreatment reactor, H2S is introduced for treatment, and the treated wastewater continuously enters two anaerobic reactors for reaction. According to the method, an aerobic-anaerobic combined reactor containing iron oxidizing bacteria and sulfate reducing bacteria is adopted for treating the mine acid wastewater, on one hand, AMD can be effectively treated, on the other hand, heavy metal can be selectively precipitated, and Schwertmannite and metal sulfide with utilization value are obtained. The method not only realizes the economic value of effectively utilizing the wastewater, but also realizes the target of environmental treatment, and has better economic value.

The invention discloses a waste gas treatment device for adhesive tape production, and particularly relates to the technical field of adhesive tape production waste gas treatment.The waste gas treatment device comprises a main body, a rotating assembly is arranged in the main body, a filtering assembly is arranged on the outer surface of the rotating assembly, and a spraying assembly is arranged on the upper side of the filtering assembly; and three biological purification assemblies are arranged on the upper side of the spraying assembly. According to the waste gas treatment device for adhesive tape production, in the waste gas treatment process of adhesive tape production, the rotating assembly penetrates through the filtering assembly, the spraying assembly, the biological purification assembly, the scraping assembly, the oxygen injection assembly and other structures, and automatic dust removal through the filtering assembly in the particulate matter filtering step is achieved; the adhesive tape production waste gas treatment device ensures full contact of adhesive tape production waste gas and spraying liquid, achieves cleaning and oxygen supply of the biological purification assembly by utilizing the scraping assembly and the oxygen injection assembly, forms a complete adhesive tape production waste gas treatment chain, and realizes efficient treatment of waste gas.

The invention relates to the field of copper wire adhesive tape wrapping, in particular to an adhesive tape wrapping mechanism suitable for a thin wire, and the thin wire adhesive tape wrapping mechanism winds a new adhesive tape on a copper wire from the following structures: a rotating part rotating around a rotating shaft of the rotating part is arranged in the thin wire adhesive tape wrapping mechanism, and the rotating part is of a local surrounding structure internally provided with a wire harness body matrix; the number of the wire harness body matrixes is at least two, the wire harness body matrixes are opposite to each other, and gaps matched with the single-strand copper wires are reserved, so that the adhesive tape used for secondary wrapping on the side bodies of the copper wires is restrained by the wire harness body matrixes to be bonded with the multiple-strand copper wires in a folded mode. The head end and the tail end of the adhesive tape are successively wound on the multiple strands of copper wires along with rotation of the rotating component; the device can be compatible between a winding mechanism and a sleeve feeding mechanism, in other words, the device can be close to the winding mechanism, and therefore the copper wires can be prevented from being overlapped through the clamping effect of the winding mechanism on the copper wires.

The utility model relates to the technical field of sewage treatment, discloses a sewage treatment dosing device for sewage treatment, and solves the problem that chemical agents are not uniformly distributed in sewage due to the fact that dosing is only performed at one position, so that the sewage treatment effect is influenced. A sewage treatment chemical adding device for sewage treatment comprises a supporting barrel, a treatment barrel, supporting legs, a barrel cover and a chemical spraying assembly, a chemical agent is put in from a chemical adding pipe, enters the chemical spraying barrel through the chemical adding pipe and is sprayed out through a chemical outlet, a motor drives a rotating rod to rotate, and the rotating rod rotates to drive a first bevel gear to rotate; the chemical feeding pipe rotates to drive a chemical spraying barrel to rotate, so that the spraying range of a chemical agent is conveniently expanded, the chemical agent is uniformly sprayed into sewage, and the chemical spraying barrel rotates to drive a connecting rod and stirring blades to rotate, so that the chemical agent is in full contact and reaction with the sewage.

The invention provides a system for preparing a single-walled carbon nanotube based on a pulsed plasma arc, which can improve the yield of the single-walled carbon nanotube. Two electrode module groups are arranged in an electric arc reaction cavity and are respectively used as an anode and a cathode, and a pulse power supply drives a motor module group to generate a pulse plasma electric arc; a pulse plasma arc is used as a heat source, a mixed solution of a catalyst and a catalyst auxiliary agent is atomized and then is fed into an arc reaction cavity by using carrier gas to react with a gaseous carbon source which is independently fed, and a high-purity single-walled carbon nanotube is grown on the surface of the fine catalyst through plasma flow between a cathode and an anode and a cracked carbon source, so that the high-purity single-walled carbon nanotube is obtained. And a produced product is obtained in a collection chamber at the tail end of the system. Meanwhile, the invention also discloses a method for preparing the single-walled carbon nanotube based on the pulse plasma arc.

The invention relates to a preparation method of a three-dimensional ferrocobalt metal oxide oxygen evolution catalyst. According to the method, foamed nickel is selected as a carrier, the foamed nickel is pretreated, a metal ion and ethanol mixed solution is evenly adsorbed to the surface of the foamed nickel, then open fire ignition is carried out, and a second-level self-limiting combustion process is carried out, so that metal ions form a ferrocobalt metal oxide material with a three-dimensional network structure in situ on the surface of the foamed nickel. The method is simple and easy to implement, a target product can be generated within second-level time, and the area of a foamed nickel matrix is adjusted according to needs, so that the three-dimensional ferrocobalt metal oxide catalyst is prepared on a large scale. The material obtained by the invention is used as an oxygen evolution anode catalyst, and the three-dimensional network-shaped ferrocobalt metal oxide oxygen evolution catalyst shows excellent electrochemical performance.

The invention discloses a static mixer for oil-water emulsification, and relates to the technical field of oil-water emulsification, the static mixer comprises an oil-water mixing pipe, a dosing pipe is fixed on one side of the top end of the oil-water mixing pipe close to a feed port, support rings are symmetrically fixed in the oil-water mixing pipe, and a DNA-imitated double-helix channel is fixed between the two groups of support rings; the DNA-imitating double-helix channel is fixed between the two groups of supporting rings on the inner side of the oil-water mixing pipe, the shark-imitating placoid scale ribs which are distributed in an array manner are fixed on the inner wall of the DNA-imitating double-helix channel, a unique bionics principle is utilized, an efficient mixing phenomenon in nature is simulated, efficient and uniform mixing of fluid in a steady-state environment is realized, and the oil-water mixing effect is improved. According to the device, fluid can be guided to generate micro vortexes, full contact and collision of oil drops and water drops can be promoted, the emulsification efficiency and stability are remarkably improved, an external power source is not needed, efficient mixing can be achieved by means of energy of the fluid, and the device is compact in overall structure, easy and convenient to install and suitable for various-scale emulsification processes.

The invention belongs to the technical field of preparation of phosphorus trichloride, and particularly relates to a preparation device and method of phosphorus trifluoride. The device comprises a reactor, a cold trap and a collector, the upper part of the reactor is provided with a phosphorus trichloride dropping device and a zinc fluoride feeding port, the upper end of the reactor is provided with a stirring paddle, the stirring paddle extends to the bottom of the reactor, the upper end of the reactor is communicated with the cold trap through a first pipeline, the pipeline is provided with a condensation pipe, and the condensation pipe is communicated with the cold trap through a second pipeline. The bottom of the cold trap is communicated with the reactor through a second pipeline; and the upper end of the cold trap is communicated with the collector through a third pipeline. The method comprises the following steps: dropwise adding phosphorus trichloride into anhydrous zinc fluoride powder in a nitrogen atmosphere, and stirring for reaction; and collecting a reaction product, and recovering phosphorus trichloride. By adding the stirring paddle into the reactor and adopting a two-stage condensation method, the conversion rate of the raw materials is increased, the production cost is reduced, and the operation process is simple.

The invention relates to the technical field of water treatment, in particular to a movable treatment device for rural black and odorous water treatment, comprising: a movable vehicle body for supporting and moving overall components of equipment; the bottom of the treatment tank is fixedly connected with the top of the mobile vehicle body, the top of the treatment tank is fixedly connected with a water inlet end cover through a bolt, and the outer side of the treatment tank is fixedly connected with an access door through a bolt. Compared with the prior art, large-particle impurities can be prevented from entering the purification assembly, blockage of purification components such as an activated carbon cylinder is avoided, the smooth purification process is guaranteed, the burden of the purification assembly is relieved by removing the large-particle impurities in advance, and the purification assembly can treat small-particle pollutants and soluble substances more intensively. Therefore, the purification efficiency of the whole treatment device can be improved, and the treatment time and cost are reduced.

The invention relates to the technical field of motor assembly, in particular to a high-adjustment motor stator subassembly assembly tool and method. Comprising a base, a first fixing unit, a second fixing unit and a butt joint mechanism. According to the device, firstly, the shell is centered and clamped through the first fixing unit, the two magnetic shoes are clamped and fixed through the second fixing unit, in the continuous left moving process of the sliding frame, firstly, the guide columns move and are inserted into the guide cylinders, and first-time guiding of follow-up magnetic shoe moving and assembling is achieved; and then the leftward movement process of the magnetic shoe is guided again in the mode that a guide rod is inserted into a butt joint hole, so that the accuracy of the placement position of the magnetic shoe in the assembling process and the stability in the assembling process are improved, and the problem that the placement position of the magnetic shoe deviates due to the magnetic force effect of the magnetic shoe is avoided.

The invention discloses an electric flame stove capable of effectively inhibiting ozone overflow. The electric flame stove comprises a stove body, a burner mounted on the stove body and a hydrogen pipe, according to the plasma burner, the electrodes are adopted for spraying hydrogen, so that the hydrogen can be quickly diffused in the plasma burner and is in full contact with ozone generated by discharging, the ozone is timely converted into harmless substances such as oxygen and the like, ozone overflow is reduced to the maximum extent, and the risk caused by insufficient combustion of the hydrogen is also reduced; according to the invention, the electrodes are adopted to inject hydrogen, so that additional ejectors are reduced, the manufacturing cost is reduced, and the structure of the electric flame stove is simplified; according to the invention, the electrodes are used for spraying hydrogen, so that the plasma obtains higher temperature, and the plasma spraying speed and spraying distance are improved; according to the furnace end, due to the simplified structure and the simple mounting and dismounting mode, the mounting and maintenance difficulty and workload are greatly reduced.

The invention provides a preparation method of a general flavone extract in abelmoschus manihot flowers, which comprises the following steps: A) crushing the abelmoschus manihot flowers, extracting with an alcohol solvent, filtering, and concentrating to obtain an extracting solution; b) purifying the extracting solution by adopting macroporous resin to obtain an eluent; and C) concentrating the eluent, and drying to obtain the traditional Chinese medicine composition. According to the method, diluted alcohol extraction and a high-speed homogenization-ultrasonic-assisted liquid phase extraction method (HSH-UAE) are adopted, so that the contact area of a solvent and the abelmoschus manihot flowers is increased, full contact of medicinal materials and the solvent is guaranteed, and flavonoid substances are dissolved more sufficiently, so that the extraction speed is increased, and the extraction efficiency is improved. Macroporous adsorption resin is selected for separation and purification, the purification effect is good, operation is easy, safety, no toxicity and no pollution are achieved, reuse can be achieved after slight treatment, and the production cost is effectively reduced. Compared with a traditional method, the method has the technical advantages that the extraction speed is high, the extraction yield is high, effective components are fully extracted and reserved, and the process is simple.

The invention relates to the technical field of aerobic composting, in particular to a material turning device for aerobic composting and a layered turning method. The material turning and throwing device for aerobic composting comprises a walking mechanism, a supporting frame and a turning and throwing assembly, the turning and throwing assembly comprises a first turning and throwing roller assembly and a second turning and throwing roller assembly, and the first turning and throwing roller assembly is higher than the second turning and throwing roller assembly and turns and throws materials entering a turning and throwing channel in a layered mode; the second turning and throwing roller assembly comprises a roller shaft, a cutter structure and an adjusting structure used for driving the cutter structure to stretch out and draw back in the radial direction of the roller shaft, a telescopic part of the adjusting structure and the roller shaft are coaxially arranged, the adjusting structure is used for driving an adjusting rod to move in the axial direction of the roller shaft, and a mounting base corresponding to the cutter structure is arranged on the adjusting rod; the cutter structure is connected with the mounting seat through a connecting rod. According to the material turning and throwing device for aerobic composting, the turning and throwing effect is improved, the uniformity of turning and throwing materials is improved, the energy consumption is reduced, and the fermentation period of aerobic composting is shortened.

The invention discloses a bimetallic composite catalyst of copper and rare earth, a preparation method of the bimetallic composite catalyst and application of the bimetallic composite catalyst in electrochemical reduction of carbon dioxide. The preparation method of the bimetallic composite catalyst comprises the following steps: mixing copper salt and rare earth metal salt in water, adding ammonium carbonate and inorganic alkali into the mixture, stirring and reacting, and centrifuging, washing and drying the mixed solution to obtain a catalyst precursor; calcining the catalyst precursor to obtain the bimetallic composite catalyst, the Cu and rare earth bimetallic compound catalyst has the advantages of high current density, high selectivity, good system stability and long service life when being used for electrically reducing CO2. The catalyst has rich active sites, has a large surface area, can be fully contacted with an electrolyte and CO2, and can overcome the limitation of substance transfer. Selective output of methane or multi-carbon products is efficiently achieved by regulating and controlling the molar ratio of copper to rare earth elements, the partial current density of methane and the multi-carbon products reaches the industrialization level, and the catalytic effect is excellent.

The invention relates to the technical field of cleaning devices, and particularly discloses an inductance component ultrasonic cleaning device which comprises a rack and a cleaning basket and further comprises a plurality of layered partition plates and a driving mechanism which are arranged in the cleaning basket, and the layered partition plates are sequentially arranged in the height direction of the cleaning basket. Each layered partition plate comprises a plurality of partition rods arranged in the width direction of the cleaning basket, the driving mechanism comprises a first driving assembly and a second driving assembly, and the first driving assembly is used for driving the partition rods to move in the length direction of the cleaning basket, so that the layered partition plates have a contracted state and a stretched state; the second driving assembly is used for driving the multiple layered partition plates to move up and down, so that the distance between every two adjacent layered partition plates is changed; workpieces stacked in the cleaning basket can be layered by switching the states of the layering partition plates and changing the distance between the layering partition plates, the contact area between the workpieces and cleaning liquid is increased, and the cleaning effect is improved.

The invention provides an extraction device containing a penthorum chinense pursh extract and a beverage, and relates to the field of food processing. According to the extraction device containing the penthorum chinense pursh extract, through the design of a closed-loop transmission system, continuous feeding, extraction and discharging of penthorum chinense pursh materials are achieved, a driver provides a stable power source through a bevel gear transmission mechanism, it is ensured that the materials continuously move and are stirred in an extraction pipe, and the extraction efficiency is improved. Penthorum chinense pursh materials can be continuously fed and extracted without shutdown treatment. Compared with the prior art, continuous extraction is achieved, the production efficiency is improved, the operation process is simplified, human intervention is reduced, the ultrasonic extraction effect is enhanced, the extraction efficiency is improved, real-time monitoring and feedback are achieved, and it is ensured that the extraction process is stable.

The utility model discloses a children's rice flour fermentation storage tank with a pressure relief structure, which comprises a bottom bearing plate, a fermentation tank body is arranged above the bottom bearing plate, a sealing cover is arranged above the fermentation tank body, and an automatic pressure relief mechanism is arranged at the top of the sealing cover. The child rice flour fermentation storage tank with the pressure relief structure is provided with a pressure relief opening, an exhaust pipe, an electromagnetic valve, a wire, a PLC logic controller, a liquid level sensor and a pressure sensor, when the child rice flour fermentation storage tank with the pressure relief structure is used, after the pressure sensor senses that air pressure reaches a preset threshold value, the electromagnetic valve on the exhaust pipe is opened, and air is exhausted outwards along the pressure relief opening and the exhaust pipe; along with outward discharge of gas, liquid in the fermentation tank body expands to form foam, the liquid level quickly moves upwards, when the liquid level sensor senses that the liquid level moves upwards, the electromagnetic valve is closed for ten seconds, and the electromagnetic valve is opened after the liquid level descends, so that the function of facilitating automatic pressure relief is realized, and the problem that the device does not have the function of facilitating automatic pressure relief is solved.

The invention relates to the field of precursor material drying, and provides a drying device capable of continuously processing a precursor material, comprising: a mounting table; the housing is fixedly arranged on one side of the upper part of the mounting table; a discharge hole is obliquely formed in the upper part; the air guide volute is fixedly connected to the lower end part of the housing, and an air inlet pipe is arranged at a volute tongue of the air guide volute; and the shunting turbofan is arranged in the air guide volute and consists of an upper side plate, a lower side plate and a plurality of arc-shaped fan blades which are uniformly arranged in the side plates at intervals. A precursor material is sprayed into the drying equipment in a mist shape through the spraying mechanism, continuous feeding of materials with different moisture contents is achieved for continuous processing, the phenomena of agglomeration and drying scaling of the materials when the materials enter the drying area of the equipment are effectively reduced, meanwhile, heat discharged during drying is recycled through the heat recovery pipe, and the energy consumption is reduced. And while the production energy consumption is reduced, the product granularity and granularity distribution are effectively controlled, and the drying uniformity is ensured.