106results about "Fusion" patented technology

The invention discloses a molten salt system and a control method of the molten salt system, and the molten salt system comprises a preheating system which comprises a molten salt tank and a preheating device; the salt dissolving system comprises a salt dissolving tank, an induced draft fan, a first gas conveying pipeline and a first exhaust pipeline; one end of the first gas conveying pipeline is connected with a steam-water side outlet of the molten salt tank, the other end is connected with an air inlet of the salt dissolving tank, and the first gas conveying pipeline is used for conveying hot air generated by preheating the molten salt tank by the preheating device to the salt dissolving tank; the other end of the first exhaust pipeline is connected with an air outlet of the salt dissolving tank; the induced draft fan is used for controlling the flowing speed of the hot air from the molten salt tank to the salt dissolving tank so as to reduce heat loss when the hot air flows in the first air conveying pipeline. Preheating waste heat of the molten salt tank is directionally conveyed to the salt dissolving tank through the first gas conveying pipeline, solid molten salt is melted through hot air waste heat, and heat energy circulation is achieved. The hot air flow speed is controlled through the exhaust fan, and the retention time of hot air in the pipeline is shortened so as to reduce the heat loss of the hot air.

The invention relates to the technical field of turpentine processing, in particular to a turpentine continuous melting and clarifying processing device and method.The turpentine raw material is put into a feeding cylinder, piled in an inclined scattering cylinder, subjected to axial autorotation along with the feeding cylinder, discharged downwards and distributed in all areas in a dissolving tank, and after dissolving is completed, the turpentine raw material is poured into the feeding cylinder to be subjected to continuous melting and clarifying processing. When the telescopic part drives the sieve plate to move upwards until the bottom end of the movable cylinder abuts against the sieve plate, the sieve plate axially rotates along with the feeding cylinder and drives the movable cylinder to axially rotate, so that the material leakage port and the material scattering port are staggered, the movable cylinder rolls solid matters in the circumferential direction of the sieve plate, and the resin liquid is discharged into the clarifying tank along the liquid leakage pipe while slag is discharged from the slag outlet; after grease water in the clarification tank is layered, most of the water layer is discharged, the grease water is put into the feeding cylinder for circular treatment, and the steam injection system and the emptying pipe in the clarification tank are opened for distillation treatment, so that the continuous processing efficiency is further improved.

The invention discloses test equipment and a test method for interaction of a melt and a nuclear power special material. The test equipment comprises a smelting chamber, a smelting container assembly, an electromagnetic and shielding control system, a gas control system, a temperature measurement system and a remote operation system, the smelting container assembly is located in the smelting chamber, the smelting container assembly is used for containing test materials including melts and nuclear power special materials, and at least part of the electromagnetic and shielding control system is located in the smelting chamber and wraps the outer side of the smelting container assembly so as to conduct electromagnetic induction heating on the melts; nuclear power special materials are shielded from electromagnetic interference; the gas control system is used for providing a gas environment for the interior of the smelting container assembly and extracting gas for filtering, discharging, collecting or analyzing, the temperature measuring system is used for measuring the temperature in the molten pool and the temperature of the nuclear power special material, and the remote operation system is used for remotely controlling the test equipment to complete test operation.

The invention belongs to the technical field of semiconductor material preparation, and particularly relates to a crucible assembly for synthesizing silicon carbide powder and a synthesis method of the crucible assembly. The crucible assembly comprises an outer crucible, a charging crucible and a supporting ring. The outer crucible is made of isostatic graphite, the side wall of the inner cavity is provided with a gas guide groove, and the bottom and top crucible covers are provided with vent holes; the charging crucible is made of porous graphite and is accommodated in the outer crucible; the support ring is arranged between the two, and the support surface is provided with a groove. Through the synergistic effect of the bottom vent hole, the supporting ring groove, the outer crucible side wall gas guide groove and the top vent hole, a gas channel of bottom gas inlet, side wall flow guide and top gas exhaust is formed. Impurities such as nitrogen adsorbed by the raw materials can be forcibly discharged, and the nitrogen content of the powder is effectively reduced; and meanwhile, excessive heat on the side wall and the bottom of the crucible is taken away through gas flow, the uniformity of a synthetic thermal field is remarkably improved, local excessive carbonization of the powder is avoided, and therefore the purity and consistency of the silicon carbide powder are synchronously improved.

The invention belongs to the technical field of waste plastic recovery, and discloses a waste plastic film-forming thermal cracking device and method.The waste plastic film-forming thermal cracking device comprises a pre-treatment assembly, a film-forming thermal cracking assembly and a post-treatment assembly which are sequentially communicated; the film-forming cracking assembly comprises a melting module communicated with the pretreatment assembly, and the melting module is communicated with a cracking module used for cracking plastic through a cleaning module; the cracking module comprises a cracking cylinder, a material distribution pipe is rotationally connected into the cracking cylinder, the outer wall of the material distribution pipe communicates with a plurality of spirally arranged flow distribution pipes, and the flow distribution pipes smear molten waste plastics on the inner wall of the cracking cylinder through smearing heads; a spiral scraping and washing plate is arranged on the shunting pipe, the shunting pipe and the scraping and washing plate are arranged in a staggered manner, and the scraping and washing plate is in sliding contact with the inner wall of the cracking cylinder. Modular design is adopted, through cooperative work of all the assemblies, waste plastic treatment can be continuously conducted, the device has the advantages of being high in efficiency, low in energy consumption and long in period operation, equipment faults are reduced, and the device is suitable for recycling of mixed waste plastic.

The invention relates to the technical field of manufacturing of fusible polytetrafluoroethylene resin, in particular to a method for treating an unstable terminal group of fusible polytetrafluoroethylene, which is used for solving the problem that the unstable terminal group cannot be thoroughly treated in the prior art. The method comprises the following steps: heating fusible polytetrafluoroethylene resin to a molten state, after self-reaction, introducing high-purity fluorine-nitrogen mixed gas to carry out fluoridation reaction, and extracting impurities generated by the reaction to obtain unstable soluble polytetrafluoroethylene resin with a treated terminal group; according to the method, soluble polytetrafluoroethylene resin is heated to a molten state, and unstable terminal groups are thoroughly treated through self-reaction and fluorination reaction.

The invention relates to the technical field of vitamin production, in particular to high-efficiency vitamin production equipment which comprises a bottom plate, a crusher mounted on the bottom plate, an emulsifying tank and a control console fixedly connected to the bottom plate, a suction device assembled on the bottom plate, and a melting device assembled below the suction device. Through cooperation of structures such as the nitrogen generator and the nitrogen tank, the absorption pipe performs directional absorption on crushed materials, so that the materials are driven to flow in a closed environment and are fed into the storage tank connected with the output end of the nitrogen generator, and the materials in the storage tank are discharged through the discharge pipe mounted on one side; the tail end of the discharging pipe is connected with a first corrugated pipe, the first corrugated pipe is flexibly connected to a feeding port of the melting tank, continuous conveying of powder from the suction device to the melting device is achieved, the whole process is completed under nitrogen protection, and oxidation reaction, moisture absorption deterioration or leakage pollution of the powder in the conveying process are avoided; the stability and the transfer efficiency of the vitamin raw materials are improved.

The invention relates to the technical field of polyester material production, and discloses a polymerization method and system for producing chinlon 6 slices, and the provided chinlon 6 slices have the advantages of higher relative viscosity, narrower molecular weight distribution, lower water content, and higher yield. According to the system used by the invention, a ZnO / Al2O3 composite variable active catalyst adding window is directly arranged at the bottom of the melting and mixing unit 1, so that the ZnO / Al2O3 composite variable active catalyst can be ensured to be more uniformly dispersed in the whole reaction system, the reaction conditions are optimized, the variable active catalyst is adopted, the pH is dynamically regulated and controlled, and the reaction efficiency is improved. The exposure degree of active sites of the catalyst can be accurately adjusted according to the requirements of different stages of a polymerization reaction, generation of cyclic dimers in the caprolactam hydrolysis ring-opening process is effectively inhibited in the pre-polymerization stage, the content of cyclic by-products is remarkably reduced to 3.5% or below, the monomer utilization rate is increased, increase of the molecular weight is promoted in the post-polymerization stage, and the yield of the catalyst is increased. And product quality.

The invention provides a method for preparing a composite catalyst by recovering an ITO waste target and the composite catalyst. The preparation method comprises the following steps: mixing an ITO waste target with sulfur, heating to 300-430 DEG C in an inert atmosphere, carrying out a vulcanization reaction, and cooling to room temperature after the reaction is finished, so as to obtain the In2S3 / In4SnS8 / In2O3 composite catalyst. The composite catalyst is composed of In2S3, In4SnS8 and In2O3, and is an In2S3 / In4SnS8 / In2O3 composite catalyst with a heterojunction structure. Compared with a traditional ITO waste target recovery technology, the method for recycling the waste into the indium sulfide-based catalytic material through one step of vulcanization has the advantages that valuable elements indium and tin in the waste target are recovered in the form of a catalyst material, tin loss of a wet process is avoided, and the problems that a pyrogenic process is high in temperature, low in cost and the like are solved. And the product still needs to be further processed.

The invention relates to the technical field of purification, in particular to vacuum distillation zone smelting purification equipment for deeply removing high-purity tellurium impurities and a production process. The vacuum distillation zone smelting purification equipment comprises a purification tank cover and a purification tank body; a movable bracket is arranged in the purification tank body; an induction line group is fixedly mounted on the movable bracket; a raw material cylinder is arranged in the purification tank body; a clamping mechanism and a turnover mechanism are arranged on the mounting plate; the clamping mechanism can clamp the raw material barrel; a reciprocating heating mechanism is arranged in the purification tank body and can drive the movable bracket to do reciprocating translation so as to drive the induction line group to move along the length direction of the raw material barrel; when the induction line group moves to the tail end of the stroke, the turnover mechanism can drive the turnover raw material barrel; through mutual cooperation of the reciprocating heating mechanism and the turnover mechanism, the process of heating mineral aggregate by the induction line group is relatively continuous (the interval time is short), impurities are gathered on one side of the raw material cylinder, and the product loss can be effectively reduced, so that the purification efficiency is indirectly improved.

A semiconductor phosphide injection synthesis system and a control method are provided, which belong to the technical field of preparation of semiconductor phosphides. The semiconductor phosphide injection synthesis system includes a furnace body, a shielding carrier box arranged above the furnace body by virtue of a lifting mechanism, a phosphorus source carrier arranged in the shielding carrier box, an injection pipe arranged below the phosphorus source carrier, and a crucible arranged at an inner bottom of the furnace body in a matched manner. The phosphorus source carrier includes a phosphorus source carrier main body, a phosphorus source carrier upper cover, a heating element base arranged at an inner bottom of the phosphorus source carrier main body, and a heating element arranged on the heating element base; a heat insulation layer is wrapped on an outer wall of the phosphorus source carrier; and an induction coil is arranged between the heat insulation layer and an inner wall of the shielding carrier box. By improving a device and method, the system stability can be improved, and an entire synthesis system achieves quantitative synthesis, which lowers the risk of explosion of the phosphorus source carrier.

The present invention provides a device and method for rapid liquefaction and high-temperature atomization decomposition of nitrate crystals, comprising a high-temperature atomization module and a liquefaction module. A relatively short microwave heating spiral feeding device is used to achieve rapid liquefaction. The liquefaction module is connected to the high-temperature atomization module so that the nitrate crystals pass through the liquefaction module and then pass through the high-temperature atomization module to be directly heated by flame for high-temperature pyrolysis. The liquefaction module comprises a nitrate crystal storage tank, a heating device, a melting tank and a material pump. The bottom of the nitrate crystal storage tank is connected to the heating device, and one end of the heating device away from the nitrate crystal storage tank is connected to the melting tank. The bottom of the melting tank is connected to the material pump, which can continuously and rapidly liquefy the nitrate crystals and reduce the transportation failure of the high-temperature molten material. Moreover, due to the high temperature, the pyrolysis speed of the material is also fast, and NO in the pyrolysis gas is reduced. x High content.

A process and reactor for removing impurities from a carbon material, involving providing a carbon feed into the electrothermal reactor; providing a gas into the reactor; passing the carbon feed through the reactor in a direction; heating the carbon feed using one or more electrodes; volatizing non-carbon material of the feed with the heat; and discharging the purified carbon material at the second location. So purified, the carbon material may be battery-grade. The feed may be passed through the reactor in a generally horizontal direction. The velocity of the feed in the reactor may be controlled to achieve a select resident time sufficient to volatize a desired amount of impurity. The process and reactor may be configured to inhibit back-mixing of the feed.

The application discloses a high-boiling halogenated hydrocarbon dechlorination device in the technical field of waste lubricating oil treatment, which comprises a reaction tank, an oil inlet pipe and a reaction agent feeding pipe are connected to the reaction tank, a water washing mechanism is connected to the discharge port of the reaction tank, and a flash tower is connected to the water washing mechanism; a heating plate is arranged in the reaction agent feeding pipe; a through hole is formed in the heating plate; a guide rod is slidably arranged on the reaction tank; a blocking plate is arranged on the inner side end of the guide rod; an installation box is arranged on the reaction tank; the outer side end of the guide rod extends into the installation box and is connected with a pressing piece; a touch switch is arranged in the installation box; and the controller is electrically connected with the heating plate. In the application, when the dechlorination agent solidifies, the speed of the dechlorination agent entering the reaction tank is reduced, the blocking plate moves with the pressing piece to press the touch switch, the controller is driven to control the heating plate to work in the power-on mode, the temperature of the dechlorination agent is increased, and the dechlorination agent can fully contact with the distillate oil.

The invention relates to the technical field of production of chemical materials, and particularly discloses a production process and application of micron-level fatty glyceride fine powder, the production process comprises the following steps: heating and dissolving monoglyceride or triglyceride, fully stirring, conveying to a head tank through a pipeline, keeping the liquid level stable, conveying to a centrifugal spray head, and drying to obtain the micron-level fatty glyceride fine powder. And treating by a high-speed centrifugal rotor to form fine liquid drops, cooling into small particles by cold air input by an air cooler, cooling in a centrifugal drying tower to obtain an intermediate, standing, fully cooling, and sieving to obtain micron-grade fine powder. The invention also provides an application of the fine powder in an expanded polystyrene ultrafine powder coating agent, the coating agent is prepared from monoglyceride, triglyceride, zinc stearate, EBS ethylene bis stearamide and silicon dioxide in specific parts by mass, and the coating agent is produced by adopting a zero-gravity dry mixing method. The particle size of the produced fine powder reaches 75 micrometers or below, the particle size D50 of a finished product is about 50 micrometers, the fine powder can be evenly coated on EPS particles, powder falling is not prone to occurring, and the processing efficiency and the product performance of the EPS industry are improved.

The embodiment of the invention relates to the field of general methods or devices for granulating raw materials, in particular to material pretreatment equipment suitable for being used in a glove box. According to the material pretreatment equipment suitable for the interior of the glove box, provided by the embodiment of the invention, a powdery material is converted into a molten state through the material transfer device, and the material in the molten state is transferred to the granulation device, so that the material in the molten state is converted into a solid flaky material by the granulation device; the materials are converted from powder to a sheet shape, and transportation and follow-up treatment are facilitated; the powdery materials are exposed in the air in the feeding device, the stirring device and the material transferring device, and the granulating device and the transferring device are arranged in the glove box, so that the finally produced flaky materials can be prevented from being directly exposed in the air, and the materials can be conveniently isolated from operators; and the transfer device is arranged to communicate with the material outlet, so that an operator can conveniently collect and transfer the flaky materials.

The invention provides pulping equipment for producing compound fertilizer through high-tower granulation, and relates to the technical field of tower-type production of compound fertilizer, the pulping equipment comprises a melting pot and an upper cover, the upper cover is provided with a driving motor, the output end of the driving motor is provided with a stirring assembly, and the side wall of the melting pot is internally provided with a heater; the bottom of the melting pot comprises a discharging hopper, the inner bottom of the discharging hopper comprises a bottom hopper with a conical inner face and a conical outer face, guide grooves are distributed in the inner face of the bottom hopper in a circumferential array mode, and an outer groove is formed in the outer edge of the bottom hopper. The compound fertilizer slurry and the microbial fertilizer are separated, so that long-time high-temperature environment is avoided, the probability that the microbial fertilizer is wrapped in the compound fertilizer slurry before granulation can be greatly reduced, rapid granulation is matched, the high-temperature-resistant requirement of the microbial fertilizer is lowered, the microbial fertilizer is promoted to fall off through rotation of the conical roller, and the production efficiency is improved. Meanwhile, excessive microbial fertilizer is prevented from being added into the compound fertilizer slurry.

The invention relates to a method for adding oil-free zinc stearate in polystyrene, which is applied to the field of polystyrene production, the oil-free zinc stearate is melted in a closed and oxygen-free state, so that the zinc stearate can be effectively prevented from being oxidized and decomposed by heating, and the chemical property stability of the zinc stearate can be ensured, thereby being beneficial to maintaining the consistency of the performance of a terminal product. The oil-free zinc stearate is added in a liquid form after being heated and melted, so that the zinc stearate can be better dispersed in the polystyrene, the polystyrene and the oil-free zinc stearate are more uniformly mixed, and the utilization efficiency of the oil-free zinc stearate is improved; according to the oil-free zinc stearate adding device, quantitative, controllable and continuous feeding of oil-free zinc stearate adding can be achieved, automatic control and process accuracy are facilitated, compared with adding of powdery oil-free zinc stearate, the oil-free zinc stearate can be prevented from being attached to equipment or a container wall, and the oil-free zinc stearate adding accuracy is further improved.

The present invention relates to a method and a device for producing ceramics, the method comprising: radiating light onto a ceramic starting material in order to heat this at least in some regions and, as a result, to produce a ceramic product, wherein the radiation of light is carried out simultaneously on a surface of at least 0.1 mm2 and / or more than 20% of the surface of the ceramic starting material, and wherein the power density of the radiated light is less than 800 W / cm2, the device comprising: —at least one receiving means for receiving a ceramic starting material and—at least one light source for radiating light onto the ceramic starting material that is or can be received in the receiving means, the device preferably being configured to radiate the light onto the ceramic starting material in order to heat this at least in some regions and, as a result, to produce a ceramic product, and wherein the receiving means has an insulation.

The application discloses a kind of high uniformity medical grade absorbable polyester, preparation method and production system, production system includes kettle type closed stirrer, auxiliary tank, three-way valve and closed kettle type reactor;Three-way valve is communicated with kettle type closed stirrer by melt metering pump;It is communicated with auxiliary tank by micro-injection pump;It is communicated with closed kettle type reactor by static mixer;The side inside of three-way valve and micro-injection pump communication side is designed funnel shape, including funnel neck and funnel mouth, the side surface and bottom surface of funnel neck are equipped with uniform small hole.The application discloses a kind of system specially used for preparing high uniformity medical grade absorbable polyester and the preparation method matched therewith, by using special production system again cooperation specific process parameter can successfully prepare with medical grade absorbable polyester, especially suitable for the preparation of poly-l-lactide and polyglycolide with higher viscosity, more difficult to produce, the product obtained has high uniformity, high molecular weight and low monomer residue.

The tailing pond system in the cold region comprises a tailing dam, a dry beach area, a clarification area, a first ore drawing pipeline and a heat dissipation pipeline, and valves are arranged at the inlet ends of the first ore drawing pipeline and the heat dissipation pipeline; the heat dissipation pipeline comprises a second ore drawing pipeline, a connecting pipeline, a pre-buried pipeline, a first anti-blocking pipeline and a second anti-blocking pipeline which are communicated in sequence; a first ore drawing pipeline and a second ore drawing pipeline are alternately arranged on the tailing dam, and a pre-buried pipeline is laid in the dry beach area; and an outlet of the second anti-blocking pipeline is higher than the level of tailing slurry discharged in the dry beach area. The invention further discloses an ore drawing method of the tailing pond system. The heat generated when the tailing slurry is discharged is used for eliminating a tailing pond freezing layer lenticular body in a cold region, it is guaranteed that the dam body infiltration line is not lifted, and the dam body safety is guaranteed.

The embodiment of the invention relates to the field of general methods or devices for granulating raw materials, in particular to a material treatment method. The method is carried out through preset equipment, the preset equipment comprises a material transfer device, a granulation device, a stirring device, a feeding device and a transfer device, and the method comprises the following steps that S10, different kinds of powdery materials are mixed through the stirring device to obtain a mixed material; s20, the mixed material is transferred to a feeding device; s30, the mixed materials are conveyed to a material transferring device through a feeding device; s40, converting the mixed material into a material in a molten state by utilizing a material transfer device; s50, after the mixed material is converted into a material in a molten state, a granulation device is started; s60, the materials in the molten state are conveyed to a granulation device through a material transfer device; s70, the materials in the molten state are converted into flaky materials through a granulation device; and S80, the flaky materials are transferred through a transfer device. According to the method, material components can be fused, and subsequent transportation and utilization are facilitated.

The phase change heat storage particle preparation device comprises a coating tower, a heating furnace, a liquid heat exchange assembly and a gas heat exchange assembly, wherein the liquid heat exchange assembly and the gas heat exchange assembly are connected with the coating tower and the heating furnace. The coating tower is used for coating an organic material on the surface of the phase change core to form an organic coating layer; the interior of the heating furnace is divided into a preheating area and a melting area in the particle conveying direction, and the heating furnace is used for heating particle green bodies coated with ceramic shell layers in a partitioned mode. The liquid heat exchange assembly conveys the molten organic material in the heating furnace to the coating tower for cyclic utilization; and the gas heat exchange assembly feeds low-temperature gas discharged by the heating furnace into the bottom of the coating tower for cooling a coating layer, and introduces high-temperature gas discharged by the coating tower into the top of the heating furnace for supplementary heating. The method solves the problem of ceramic shell cracking caused by thermal stress concentration in the traditional process, obviously improves the product yield, realizes cyclic utilization of organic materials and heat energy, reduces energy consumption and production cost, and is suitable for industrial continuous production.

The invention relates to the related technical field of glycoside-containing compound fertilizer production, and discloses an energy-saving multi-stage melting device for glycoside-containing compound fertilizer production, which is characterized in that a gas collecting device and a stirring device are arranged in a stirring tank device, and the gas collecting device is arranged above the stirring device; a mixing and stirring device is fixedly connected to the lower part of the stirring device, and the stirring device and the mixing and stirring device are used for stirring chemical fertilizer particles; through the collaborative linkage design of the stirring device and the mixing and stirring device, the multi-layer stirring structure of the middle stirring blade, the bottom scraping plate and the two-layer scraping plate is combined, the convective circulation layout of the side feeding opening and the upper discharging opening in the upper end of the stirring box is matched, and meanwhile the wall hanging prevention combination of sawteeth on the side wall of the stirring box and the vertical scraping plate is utilized; therefore, all-directional and dead-corner-free multi-stage stirring of the fertilizer particles is realized. In the stirring process, the vertical scraping plate is tightly attached to the inner wall of the inner cylinder for continuous scraping, and the sawteeth crush potential caking materials.

The invention relates to a rain drip-proof device in a pot of an explosive melting and mixing system, which comprises a pneumatic ball valve and a transparent water storage pipeline, the upper end of the water storage pipeline is open, and the lower end of the water storage pipeline is closed; a water outlet of the pneumatic ball valve is communicated with a flow guide pipe section extending downwards, the lower end of the flow guide pipe section is communicated with the upper end of the water storage pipeline, and the side portion of the flow guide pipe section is communicated with the interior of the pot through a first flow guide pipeline. If the pneumatic ball valve of the fire-fighting deluge switch has abnormal leakage, a small amount of leaked fire-fighting deluge water does not leak into the pot but enters the water storage pipeline, so that workers can conveniently inspect, find and process the fire-fighting deluge water, and the production quality and safety problems are avoided.

This invention discloses an automated control device and method for a sulfur melting kettle, comprising a sulfur melting kettle, a sulfur foam control system, a clear liquid control system, a steam control system, a liquid sulfur control system, and a condensate control system, all connected to the kettle. A slag discharge mechanism is installed inside the kettle. The sulfur foam control system, clear liquid control system, steam control system, liquid sulfur control system, condensate control system, and slag discharge mechanism are all connected to a DCS / PLC. The slag discharge mechanism includes a shell rotatably connected to the kettle body at one end, a covering assembly rotatably connected to the other end of the shell, and a balancing assembly disposed within the shell. A slag discharge channel is provided inside the shell. The automated control device and method for a sulfur melting kettle provided by this invention features automated and remote production operation, automatic slag discharge, ensuring continuous production, improving production efficiency, and protecting the safety and health of operators.

The present invention discloses a split three-section hot melt kettle, which relates to the field of road marking equipment, including a kettle body assembly, a heating system, and a hot melt material conveying system connected by pipelines; the kettle body assembly includes a base, on which a kettle cover, an upper kettle section, a middle kettle section, and a lower kettle section are sequentially arranged from top to bottom, and the kettle cover is provided with a loading port and a feeding port, and the kettle body outer barrel and the kettle body inner barrel form a heating chamber; a discharge port connected to the kettle body inner barrel of the lower kettle is provided at the bottom of the lower kettle, and the feeding port and the discharge port are connected to the hot melt material conveying system; an oil inlet connected to the heating chamber is provided on the upper kettle body, and a stirring mechanism is coaxially arranged in the kettle body assembly, and the oil inlet and the oil outlet are connected to the heating system. The present invention can greatly improve the melting efficiency for different types of hot melt coatings, and at the same time has the advantages of automatic control of the melt temperature, sufficient fuel combustion, high combustion efficiency and compact structure.

The invention relates to the technical field of carbon dioxide cracking, in particular to a carbon dioxide cracking device and method, and the cracking device is sequentially provided with a microwave discharge unit, a catalysis unit and a molten salt cracking unit from top to bottom; the microwave discharge unit comprises a shell, the shell is sequentially provided with a coaxial resonant cavity and a cylindrical resonant cavity from top to bottom, and a microwave generator is arranged on the side face of the cylindrical resonant cavity; the catalysis unit comprises a plasma cavity and a catalyst layer which are sequentially arranged from top to bottom; wherein the plasma cavity is communicated with the cylindrical resonant cavity; the fused salt cracking unit comprises a container communicated with the bottom of the catalyst layer, and a sealing plate for dividing the interior of the container into an upper space and a lower space is fixed in the container; a fused salt layer is arranged in the lower space, and the bottom end of the gas guide pipe is located in fused salt; the technology of synergistic microwave discharge, chemical catalysis, high-temperature molten salt catalytic cracking and the like is adopted, carbon dioxide can be efficiently converted into a nano carbon material with a high additional value, the reaction speed is high, the cracking effect is good, and the yield is high.

This invention provides a heating melting tank for producing mupirocin ointment, relating to the field of mupirocin ointment production technology. The heating melting tank for producing mupirocin ointment includes a tank body, a stirring shaft, stirring blades, a scraper, and a limiting assembly. The scraper is parallel to the stirring shaft and movably disposed on one side of the stirring shaft. The scraper has a first position and a second position. In the first position, the scraper abuts against the inner wall of the tank; in the second position, the scraper has a gap with the inner wall of the tank. The limiting assembly is disposed on the stirring shaft and connected to the scraper, used to limit and fix the scraper in the first and second positions. This invention has the effect of scraping off the mupirocin ointment adhering to the inner wall of the tank after discharge, thereby reducing waste.

The invention relates to the technical field of waste PET recovery, and discloses a trapping method and system for recovering DMT in waste PET through a chemical method, and the method comprises the following steps: (1) carrying out rectification and tower top condensation on crude DMT obtained by recovering waste PET through the chemical method to obtain uncondensed gas-phase DMT; (2) the gas-phase DMT is introduced into a cold trap trap for trapping, a plurality of layers of coil pipes which are spirally and upwards arranged are arranged in the cold trap trap, and the coil pipes are finned pipes; and in the cold trap, cooling circulating water is firstly introduced to desublimate the gas-phase DMT to obtain solid-phase DMT, and then circulating steam is introduced to melt the solid-phase DMT and recover the solid-phase DMT to obtain liquid-phase DMT. By optimizing relevant parameters of cold trap trapping, DMT can be more efficiently trapped and recovered, the loss rate of DMT is reduced, and meanwhile, the situation that excessive DMT gas phase enters a vacuum system, a vacuum pipeline is blocked, and consequently the vacuum degree of DMT vacuum distillation is affected is avoided.