404results about How to "Improve recycling effect" patented technology

The invention discloses biomass boiler flue gas denitration equipment, which belongs to the field of flue gas treatment, and comprises a denitration cylinder, a flue gas inlet pipe is fixedly mounted on one side of the denitration cylinder, a filter screen is fixedly mounted on one side, close to the flue gas inlet pipe, of an inner cavity of the denitration cylinder, and the denitration cylinder further comprises a mixing assembly, a flue gas inlet pipe and a flue gas outlet pipe, the mixing assembly comprises a round frame rotationally mounted in an inner cavity of the denitration cylinder, retarding plates are uniformly and fixedly mounted on the round frame, round openings are uniformly formed in each group of retarding plates, circular ring holes are formed in the outer sides of each group of round openings, and each group of circular ring holes are formed in the adjacent retarding plates; according to the flue gas denitration device, the contact duration of flue gas and ammonia gas can be prolonged, the mixing effect of the flue gas and the ammonia gas can be improved, the situation that in the past, the flue gas is high in flow speed and difficult to fully mix and react with the ammonia gas, and consequently the ammonia escape phenomenon is caused can be avoided, the safety of the reaction of the flue gas and the ammonia gas can be effectively improved, and the flue gas denitration effect is improved.

The invention belongs to the technical field of plastic recycling, and discloses a plastic recycling device with a cleaning function, which comprises a base, a crushing assembly is fixedly mounted on the left side of the top end of the base, a cleaning assembly is fixedly mounted on the right side of the top end of the base, and a dewatering assembly is mounted on the position, close to the left side, of the top end of the cleaning assembly. A main shaft is movably installed between the smashing assembly and the dewatering assembly, and a driving assembly located between the smashing assembly and the dewatering assembly is installed in the middle of the outer side face of the main shaft. After cutting and smashing of plastic waste are completed, high-speed contact between water flow and plastic particles can be achieved through cooperation of mechanical power of the plastic waste and input high-pressure water flow, and flying dust generated during smashing of the plastic waste is subjected to rapid dust falling through the mixing effect of the high-pressure water flow and mixed with clear water; meanwhile, dirt on the surfaces of the plastic particles can be rapidly removed, the automatic cleaning process of the plastic particles is achieved, and the recycling effect is improved.

The invention provides a method for synthesizing cyclic carbonate by catalyzing conversion of carbon dioxide with a ZIF-8-coated In2O3 composite material, and belongs to the field of catalytic chemistry. According to the method, carbon dioxide and an epoxy compound are used as raw materials, a ZIF-8-coated In2O3 composite material is used as a catalyst, tetrabutylammonium bromide is used as a cocatalyst, cycloaddition of the epoxy compound and normal-pressure carbon dioxide is performed to synthesize cyclic carbonate, and the ZIF-8-coated In2O3 composite material is prepared by in-situ compounding of ZIF-8 and In2O3 of a hollow prism structure. The ZIF-8-coated In2O3 nano-composite catalyst provided by the invention is simple to prepare, the raw materials are cheap and easy to obtain, the catalytic performance is excellent, and high-selectivity synthesis of cyclic carbonate under mild conditions can be realized. In addition, the catalyst is stable in structure, easy to separate from a product and good in recycling performance, and belongs to an environment-friendly catalyst.

The utility model relates to a printed circuit board (PCB) inner layer printing ink coating device, which belongs to the technical field of printing ink coating, and comprises a material collecting box, a material guide hopper, two supports and a coating roller, one side of the material collecting box far away from the ground is fixedly connected with one side of the material guide hopper, the two supports are respectively and fixedly arranged on one side of the material collecting box far away from the ground through bolts, and the coating roller is fixedly arranged on the other side of the material collecting box far away from the ground. The two brackets are distributed in a mirror symmetry manner, and the outer side of the coating roller is mounted on one side of each bracket; and two sets of ink scraping and recycling mechanisms in mirror symmetry are mounted on the side, away from the ground, of the material collecting box. According to the PCB inner layer ink coating device, the function of automatically recycling ink can be provided, the ink on the coating roller can be effectively recycled and reused, waste of the ink is avoided, the production cost is reduced, meanwhile, the ink on the coating roller can be removed in time, drying and curing of the ink are avoided, and the production efficiency is improved. Therefore, the printing ink recovery effect of the existing PCB inner layer printing ink coating device is effectively improved.

The invention relates to a method for recovering lithium and fluorine from electrolytic aluminum solid waste, which comprises the following steps: firstly mixing the electrolytic aluminum solid waste and an iron-containing acid solution for complexing leaching to obtain a lithium-containing leachate; mixing the lithium-containing leaching solution with a calcium-containing additive for precipitation reaction to obtain a fluorine-removed lithium-containing leaching solution and calcium fluoride; then the fluorine-removed lithium-containing leaching solution is subjected to pH adjustment through alkali liquor, and an iron-removed and aluminum-removed lithium-containing leaching solution is obtained; finally, adsorbing and separating the lithium-containing leaching solution with iron and aluminum removed to obtain a lithium-rich solution; according to the method, lithium and fluorine resources in the electrolytic aluminum solid waste are efficiently recycled, the leaching rate of Li < + > is preferably as high as 87.2% or above, the loss rate of lithium is preferably as low as 1.00% or below, the recovery rate of the fluorine element is preferably as high as 85.9% or above, generation of a large amount of HF gas is avoided, and the method is environmentally friendly and low in recovery cost.

The invention relates to the technical field of steelmaking, in particular to a steelmaking slag waste heat resource recycling system which comprises a base and a circular conveying cylinder, a conveying cavity used for conveying slag is formed in the conveying cylinder, a feeding port is formed in the higher end of the conveying cylinder, a discharging port is formed in the lower end of the conveying cylinder, and a rotating shaft is rotationally installed in the conveying cavity; a spiral conveying blade is arranged on the rotating shaft, a driving assembly is arranged on the conveying cylinder, a heat exchange assembly is further arranged on the conveying cylinder and comprises a liquid heat exchange cavity, a water inlet and a water outlet are formed in the liquid heat exchange cavity, the water inlet is formed in the higher end of the liquid heat exchange cavity, and the water outlet is formed in the lower end of the liquid heat exchange cavity. The heat exchange liquid for heat exchange is separated from the furnace slag, so that recovery of waste heat in the furnace slag is guaranteed, and waste of water resources is avoided. And through the arrangement of the water inlet and the water outlet, waste heat in the furnace slag can be quickly recycled.

The present invention provides a kind of beneficiation method of low-grade spodumene ore, belongs to the field of mineral processing technology, and the method comprises the following steps: raw ore grinding, stirring and slurrying, flotation and other steps, wherein the stirring and slurrying operation uses YLH-01 as an adjusting agent, stirs under the original slurry pH condition, optimizes the rheological properties of the slurry, solves the problem that the fine mud covers the mineral surface and affects the ore sorting, and the flotation operation further improves the separation effect of spodumene and gangue minerals by the selective adsorption of collector PL2-01 on the spodumene surface, and realizes the efficient sorting of low-grade spodumene. The present invention is a new beneficiation method with good stability, good separation effect, high separation index and strong adaptability, which is suitable for promotion and application.

The invention relates to a method for recovering iridium from low-iridium-content wastewater, which comprises the following operation steps: (1) heating oxidation: adding a strong oxidant into the low-iridium-content wastewater for oxidation treatment, and mixing and stirring for reaction; (2) pH adjustment: slowly adding a sodium hydroxide solution under a stirring condition; (3) sulfuration precipitation: slowly adding a sulfuration precipitator under a stirring condition, heating to 70-80 DEG C, carrying out a constant temperature reaction, and cooling to room temperature; (4) flocculation and filtration: slowly adding a mixed flocculant under a stirring condition, standing, filtering, cleaning filter residues to be neutral, and draining water; (5) sulfuric acid digestion: putting the filter residues into a reaction container, slowly adding a dilute sulfuric acid solution under a stirring condition for soaking, cooling to room temperature after the reaction is completed, filtering, washing the filter residues to be neutral, and draining water; and (6) calcining: calcining the filter residues to obtain the iridium oxide. The method has good recovery capability on the low-content and high-impurity iridium wastewater.

The invention belongs to the field of electronic wastes, and particularly relates to a waste circuit board recycling and reusing method which comprises the following steps: step 1, a preliminary decomposition stage of a waste circuit board: decomposing the waste circuit board into fragments suitable for follow-up treatment through a mechanical crushing and screening physical method; 2, a chemical leaching stage: dissolving metal components in the waste circuit board from the fragments by using a chemical solvent; 3, a metal recovery and separation stage: reducing metal ions dissolved in the solution into metal by adopting an electrolytic method; step 4, a harmful substance removal stage: removing harmful substances in the waste circuit board; 5, a resource reutilization and comprehensive utilization stage: through a recovery system unit, the recovered metal, plastic substrates and electronic component materials are extracted and utilized, and a feedback control system optimizes the resource recovery efficiency according to real-time data; and step 6, closed-loop treatment and environment-friendly compliance stage: treating wastewater, waste gas and solid waste through a closed-loop system unit.

The invention belongs to the technical field of water resource recycling, and discloses a water resource recycling system and a control method, the water resource recycling system comprises a domestic sewage pretreatment system, a rainwater pretreatment system, an industrial wastewater pretreatment system, a main treatment system and a post-treatment system; the domestic sewage pretreatment system, the rainwater pretreatment system and the industrial wastewater pretreatment system are respectively connected in parallel to the main treatment system through a multi-channel pipeline, and the other end of the main treatment system is connected to the post-treatment system through a pipeline. When the system is used, domestic sewage, rainwater or industrial wastewater can be independently treated, the domestic sewage, the rainwater or the industrial wastewater can also be treated at the same time, and the system has multiple treatment modes and can meet different treatment conditions for treatment. The treatment process and equipment are reduced on the whole, the treatment time is saved, the occupied area of the equipment is reduced, and the treatment and recovery effects on different types of water resources are improved.

The invention belongs to the technical field of environmental protection, and discloses a method for rapidly and efficiently removing and recycling polycyclic aromatic hydrocarbon in water and a carbon-based adsorbent, the method comprises the following steps: S1, preparing a modified carbon-based adsorbent; s2, treating the polycyclic aromatic hydrocarbon pollutant wastewater; and S3, recycling the polycyclic aromatic hydrocarbon. According to the preparation method, H3PO4 or ZnCl2 is taken as an activating agent, and an activated carbon base material and an activating process are controlled, so that nano-micron multi-scale modified carbon-based adsorbent particles which are mainly prepared from a large number of long-strip-shaped gap mesopores which are communicated with one another and are approximately distributed in parallel and are auxiliary from a small number of discrete irregular groove-shaped mesopores are obtained; the long and narrow long-strip-shaped gap mesopores of the particle are matched with the irregular groove-shaped mesoporous structure, so that large-size polycyclic aromatic hydrocarbon can be quickly adsorbed and desorbed, and the balance of adsorption and desorption efficiency can be realized; on one hand, the adsorption and desorption efficiency of pollutants is improved, and on the other hand, the dosage of the adsorbent is greatly reduced.

The invention discloses an organic solvent recovery device. The device comprises a pretreatment mechanism, an adsorption mechanism, a steam furnace and the like. The pretreatment mechanism is provided with a filter and a cooler for primarily treating a solvent; the adsorption mechanism is composed of a spiral activated carbon plate, a central electrode and an interlayer electrode, the adsorption process of a solvent is optimized through an electric field, and the service cycle of an adsorption material is prolonged. A vacuum adsorption pump is further arranged in the adsorption mechanism, and the adsorption effect of solvent steam is enhanced by generating a vacuum environment. In addition, the device is further provided with a reversible power supply, reverse regeneration of the adsorption material can be achieved, and the replacement frequency is reduced. The steam furnace is connected with the adsorption mechanism, and solvent recovery is conducted through steam heating. And the rear end of the device is connected with a chimney discharge system to ensure that waste gas discharge meets environmental protection requirements. Through the double adsorption mechanisms and the innovative electrode design, the recovery efficiency is remarkably improved, the operation and maintenance cost is reduced, the environmental protection standard is met, and high economic benefits and social benefits are achieved.

The utility model discloses a combined heat and power generation system of an integrated heat pump. The combined heat and power generation system comprises a steam turbine system and a heat supply network water heating system. The steam turbine system comprises an intermediate-pressure cylinder, a low-pressure cylinder and a condenser; the heat supply network water heating system comprises a condenser (electric heat pump), an absorber, a condenser (absorption heat pump) and a peak heater. Heat supply network return water is connected with an evaporator heat source inlet of the absorption heat pump, an evaporator heat source outlet is connected with a condenser heat supply network water inlet of the electric heat pump, a heat supply network water outlet of the electric heat pump is connected with an absorber heat supply network water inlet of the absorption heat pump, and a heat supply network water outlet of the absorber is connected with a condenser heat supply network water inlet of the absorption heat pump. A heat supply network water outlet of the condenser is connected with a heat supply network water inlet of the peak heater, and a heat supply network water outlet of the peak heater is connected with a heat supply network to supply water for the heat supply network. By recycling more waste heat, the heat supply capacity and the total efficiency of the system are improved while the combined heat and power generation system obtains more flexible power generation load adjusting capacity.

The invention discloses a copper-based sterilizing agent composite functional film material and a preparation method and application thereof, the preparation method comprises the following steps: preparing a sulfur-indium-zinc composite material ZIS by a hydrothermal method, preparing a copper ion solution, mixing the copper ion solution with the composite material, and carrying out a photodeposition reaction to obtain a copper-based sterilizing agent CZIS; the preparation method comprises the following steps: functionalizing acidified carbon nanotubes through polyethyleneimine, and depositing CNTs on a hydrophilic polyvinylidene fluoride film to form a thin film in combination with a vacuum-assisted filtering method; and filtering the CZIS dispersoid on the CNTs-PEI membrane, so as to obtain the copper-based disinfectant composite functional membrane material CNTs-PEI / CZIS. The CNTs-PEI / CZIS composite membrane disclosed by the invention can realize high-efficiency sterilization on bacteria, has the antibacterial ability close to 100% (the bacterial concentration is greater than or equal to 106 CFU / mL) within 2 hours, is high in stability, can be recycled, has self-cleaning and broad-spectrum applicability, has good environment purification potential, and is a multifunctional membrane material integrating high-efficiency sterilization and self-cleaning.

According to the power plant waste heat recovery system and method, the types of recovered power plant waste heat are very comprehensive, and the power plant waste heat is recycled in a stepped mode. All waste heat, including flue gas waste heat, circulating water waste heat, furnace wall waste heat and slag waste heat, of the thermal power plant is recovered at the same time. In addition, different heat pumps and different heat exchangers are selected according to different waste heat characteristics, all recoverable waste heat is efficiently recovered, and the energy conversion efficiency of a power plant is improved. The cascade recycling of the waste heat of the power plant comprises three recycling modes of a low-pressure steam turbine generator set, a low-boiling-point working medium generator set and a heat supply pipeline. According to the method, on one hand, the applicability of the waste heat recovery system of the power plant is improved, the method is suitable for different types of thermal power plants, and is also suitable for the influence of different seasons and environment temperature factors on waste heat, and on the other hand, the waste heat is recycled to the maximum extent according to comparison and matching of the temperature and pressure set value and the measured value of the recycling equipment, and waste of the waste heat is avoided.

The utility model discloses an automatic water surface garbage collecting device, which belongs to the technical field of water surface garbage collection, and comprises two groups of collecting wheel module assemblies, a conveyor belt module assembly, a garbage storage box and a propeller mechanism, and the two groups of collecting wheel module assemblies are respectively and symmetrically arranged at the front end of a ship body; the ship body is of a double-ship structure with the two sides symmetrically arranged and the middle vacant, the conveying belt module assembly is arranged in the middle of the ship body, the garbage storage box is arranged at the rear end in the ship body, and the propeller mechanisms are arranged on the two sides and the rear end of the ship body. A hydraulic assembly is arranged in the garbage storage box and used for compressing garbage, the top ends of the two collecting wheel module assemblies are connected through a meshing reversing mechanism, and the reversing mechanism drives the two collecting wheel module assemblies to rotate oppositely to effectively guide the garbage on the water surface to the center of the ship body. According to the utility model, the treatment efficiency and the recovery effect of the water floating garbage are improved, and the labor cost is saved.

The invention relates to a magnetic calcium-iron layered double-metal hydroxide catalyst as well as preparation and application thereof. The catalyst is characterized in that the catalyst is composed of a carrier and layered double hydroxides, the layered double hydroxides are calcium-iron layered double hydroxides, and the carrier is magnetic copper ferrite CuFe2O4; wherein the loading mass percentage of Ca element in the catalyst is 8-16%, and the molar ratio of Ca < 3 + > to Fe < 2 + > is (2-4): 1. Through a specific hydrothermal synthesis method, the catalyst capable of effectively activating PMS to efficiently degrade sulfamethoxazole (SMX) in water is prepared. The preparation process of the catalyst comprises synthesis of copper and iron oxides and subsequent combination of calcium and iron layered double hydroxides, the process not only improves the catalytic efficiency, but also optimizes recovery and recycling of the catalyst through introduction of a magnetic material.

The utility model belongs to the technical field of thermal power plants, and discloses a thermal power plant boiler slag recovery device which comprises a combustion mechanism used for combusting downward-flowing slag and further comprises a lower box mechanism installed at the bottom of the combustion mechanism and used for converging the slag to be discharged, and a slag discharging mechanism used for spirally pushing the slag to be discharged is installed in the middle of the lower box mechanism. The lower box mechanism is detachably connected with the combustion mechanism; the box discharging mechanism comprises a flow guide box, a conveying channel is arranged at the bottom of the flow guide box, a discharging pipe is arranged at the bottom of one end of the conveying channel, and a lower connecting edge is arranged on the circumference of the top of the flow guide box. According to the boiler slag recovery device for the thermal power plant, the flow guide box with the wide upper part and the narrow lower part is arranged, so that slag convergence is ensured, and the slag recovery effect is improved; through up-and-down disassembly and connection, disassembly, assembly, repair and maintenance are facilitated; and through the arrangement of deslagging at the bottom of the end head, the entering of unreliable air is reduced, and the combustion stability of the boiler is ensured.

The invention relates to the technical field of sewage treatment, and discloses a combined treatment method of acid wastewater. The combined treatment method of the acid wastewater comprises the following steps: introducing the acid wastewater generated in an industrial process into an electrochemical device, loading a nonmetallic mineral material on an anode of the electrochemical device, and neutralizing the acid wastewater and extracting heavy metals through electrochemical treatment; the solution subjected to electrochemical treatment enters a sedimentation tank, carbon dioxide in the air is captured and fixed, and then the treated solution meeting the environmental quality standard for surface water is directly discharged. The acid wastewater treatment method is simple, efficient and easy to operate, meanwhile, heavy metal recovery is achieved, non-metallic minerals which are easy to obtain and environmentally friendly are introduced into the anode of the electrochemical device, hydrogen ions released in the electrolysis process are consumed, inhibition of the hydrogen ions on heavy metal deposition is reduced, and the extraction rate of the heavy metal in the wastewater is increased. And the solution subjected to electrochemical treatment is used for capturing and fixing the carbon dioxide, so that the treatment liquid is directly discharged.

The utility model discloses an ethanol condensation recovery device, and relates to the technical field of ethanol recovery. The device comprises a shell, the top of the shell communicates with a gas transmission connecting pipe, the bottom of the shell communicates with a discharge pipe, a condensation mechanism used for recycling ethanol in waste gas is arranged in the shell, and a shell is fixed to one side of the shell. And liquid ethanol in the condensation pipeline can be further assisted to be discharged downwards under the action of vibration impact force, so that the condensed liquid ethanol can be discharged more completely by the device, the recovery effect of the device is improved, and the problem that an existing ethanol condensation recovery device is inconvenient to use in the using process is solved. The condensed liquid ethanol is easy to remain and adhere to the interior of the device, so that the device is not easy to completely discharge the condensed liquid ethanol, and the recovery effect of the device is reduced.

The invention relates to the technical field of adsorbents, in particular to a self-floating beta-ketoenamine covalent organic framework-chitosan aerogel adsorbent as well as a preparation method and application thereof. The preparation method comprises the following steps: S1, preparing the TpPa-1-COF nano particles; s2, ultrasonically dissolving CS in an acetic acid aqueous solution to obtain a CS acetic acid aqueous solution; s3, performing ultrasonic dispersion on the TpPa-1-COF nanoparticles in ultrapure water, and then uniformly mixing a COF aqueous solution with a CS acetic acid aqueous solution to obtain a COF / CS mixed solution; s4, heating the COF / CS mixed solution to form COF / CS hydrogel, aging the COF / CS hydrogel at room temperature, and freeze-drying the COF / CS hydrogel to obtain the self-floating beta-ketoenamine covalent organic framework-chitosan aerogel adsorbent. The aerogel adsorbent disclosed by the invention has the characteristics of wide pH application range, high adsorption capacity and easiness in recovery in the aspect of recovering noble metals in wastewater, and particularly shows high-selectivity adsorption on Au.

The invention relates to the field of recycling of waste lithium iron phosphate batteries, in particular to a method for removing aluminum and copper from iron phosphorus slag and application. The method comprises the following steps: ball milling and screening: carrying out ball milling and screening on an iron phosphorus slag raw material; activating and dispersing: mixing the ball-milled and screened raw materials with an activating and dispersing reagent, and activating and dispersing; removing aluminum and copper: mixing an acid leaching reagent with the activated and dispersed material, and performing acid leaching and solid-liquid separation to obtain iron-phosphorus slag with low aluminum and copper content; wherein the activating dispersing reagent contains a surfactant, and the acid leaching reagent contains organic acid and an oxidizing agent. According to the method, aluminum and copper can be preferentially removed from the waste iron-phosphorus slag in one step, the low-aluminum-copper iron-phosphorus slag is obtained, and follow-up iron and phosphorus recovery is facilitated. The method is high in impurity removal efficiency, simple in technological process and environmentally friendly, and lays a foundation for high-quality and high-value utilization of iron and phosphorus resources in the waste lithium iron phosphate batteries.

The invention discloses a preparation method of a flame-retardant dynamic cross-linking ABS polymer, which comprises the following steps: under the protection of inert gas, dissolving ABS in an organic solvent, adding a free radical initiator and a sulfydryl-containing amino modifier, introducing amino into the polymer through a'sulfydryl-alkene 'click reaction, and after the click reaction is finished, adding an initiator, and reacting to obtain the flame-retardant dynamic cross-linking ABS polymer. Settling a product, and drying to obtain an amino-modified ABS polymer; the preparation method comprises the following steps: dissolving amino modified ABS in an organic solvent, adding a multi-aldehyde group-containing cyclophosphazene cross-linking agent into a reaction system, uniformly mixing at room temperature, pouring into a polytetrafluoroethylene mold, and after the solvent is volatilized to form a film, putting into a vacuum oven for further high-temperature curing reaction to obtain the dynamic cross-linking ABS polymer. According to the ABS polymer, the mechanical property of a material can be improved, and the material is endowed with flame retardance, self-repairability, reprocessability and recycling property at the same time.

The invention discloses a data garbage collection method, electronic equipment and a storage medium, and the data garbage collection method comprises the steps: responding to target data on a source block of the storage equipment, including valid data and invalid data, and carrying out feature processing on the valid data to obtain a feature value of the valid data; judging whether a characteristic value which is the same as the characteristic value of the effective data exists in a characteristic value table or not; wherein feature values of various preset data are stored in the feature value table; and if the feature value which is the same as the feature value of the effective data exists in the feature value table, determining that the target data on the source block is erasable data. By means of the mode, normal reading of the effective data can be guaranteed, the process that the effective data are written into the target block again to be stored is reduced, the situation of write amplification is reduced, and the host write-in speed and the access speed of the storage device are improved.

The utility model relates to the field of herbicide spraying devices, and discloses a herbicide spraying device for corn-leguminous crop intercropping, which comprises a herbicide storage unit, a closed support unit, a herbicide spraying unit and a herbicide tail end recovery unit, according to the device, simultaneous and synchronous operation of corn and leguminous covering crop herbicides is achieved, different herbicides are placed in different box bodies respectively, herbicide spraying is in a relatively closed environment, drifting and wind diffusion of the herbicides are limited, and therefore pollution to the external environment and possible damage to other plants are reduced, and the device is suitable for popularization and application. The tail end herbicide recovery unit is arranged, the herbicide recovery device is arranged at the tail end in the advancing direction, herbicide liquid drops floating in the air are absorbed by means of herbicide recovery plates and recovery cotton belts, and the herbicide recovery plates and the recovery cotton belts are several in number, so that a very good recovery effect can be achieved.

The invention belongs to the technical field of production of vinylene carbonate, and particularly relates to a rectification and purification system for water-containing triethylamine. Comprising a triethylamine azeotropic module, a triethylamine rectification module and a wastewater recovery module, wherein the triethylamine azeotropic module is used for impurity removal and primary water separation of a water-containing triethylamine solution; the triethylamine rectification module is connected with the triethylamine azeotropic module, and the triethylamine rectification module is used for purifying a water-containing triethylamine solution to produce a qualified triethylamine solution; the wastewater recovery module is connected with the triethylamine azeotropic module and the triethylamine rectification module, and the wastewater recovery module is used for wastewater recovery and sewage treatment of the triethylamine azeotropic module and the triethylamine rectification module. According to the method, impurities and polymers are separated in an azeotropic mode, meanwhile, the triethylamine yield and the continuous processing efficiency are improved, frequent cleaning of equipment is not needed, and the working efficiency is improved.

The utility model discloses a dust treatment device for sealant production, which belongs to the technical field of sealant production and comprises a containing box, and a mounting bin is arranged at the inner bottom of the containing box. The fixing ring is arranged at the inner top of the containing box, the exhaust port and the air inlet groove are formed in the inner side of the fixing ring, meanwhile, the filter plate is installed in the air inlet groove, and in addition, fan blades at the output end of the stirring motor in the installation bin are matched for use, so that in the sealant production process, the sealing effect is good, and the sealing effect is good. According to the device, dust can be shielded through an air curtain formed by exhaust, the dust can be sucked through negative pressure and then filtered through a filter plate, in addition, in the rotating process of a stirring rod, a scraper is driven to clean the dust accumulated on the surface of the filter plate, raw materials entering the containing box are effectively prevented from drifting away, the practicability is higher, and the device is worthy of popularization. Meanwhile, stirring of sealant raw materials, cleaning of the filter plates and dust prevention are controlled in a transmission mode, and more energy is saved in use.

The invention relates to the technical field of photovoltaic glass recovery equipment, in particular to multi-cutter matrix grinding equipment which comprises a rack and further comprises a conveying mechanism located on the rack and used for conveying glass on a photovoltaic laminated piece; the crushing mechanism is positioned at the output end of the conveying mechanism and is used for crushing glass on the photovoltaic laminated piece output by the conveying mechanism; the driving assembly is used for driving the crushing mechanism to operate; and the controller is arranged on the rack and used for controlling output operation of the driving assembly. The conveying mechanism is arranged on the conveying line for conveying the glass on the photovoltaic laminated piece, the crushing mechanism capable of crushing the glass on the photovoltaic laminated piece is arranged at the output end of the conveying mechanism, and when the crushing mechanism runs, the working mode of the structure ensures that the glass material cannot be crushed when the glass material is crushed; and uniform-size separation can be realized, so that subsequent recycling is facilitated.

The utility model discloses a heat recovery assembly of a rotary kiln, and relates to the technical field of cement production equipment. The front cooling cover and the rear cooling cover are arranged at the front end and the rear end of the outer wall of the kiln body in a sleeved mode, adjusting holes are formed in the upper side and the lower side of the rear end face of the front cooling cover, butt joint assemblies are arranged in the adjusting holes, an air cooling unit is arranged on one side of the kiln body, and a heat recovery assembly is arranged on the other side of the kiln body. According to the utility model, the front cooling cover and the rear cooling cover are conveniently and quickly disassembled by a worker through the butt joint assembly, time and labor are saved, the working efficiency is high, other equipment or materials can be dried and the like by utilizing the air cooling unit and the heat recovery assembly, or the heat of cooling water in the replacement box is replaced, so that the heat recovery effect is achieved; the heat recovery efficiency and effect can be improved, and heat waste is reduced.

The invention discloses a solid waste recycling device, and belongs to the technical field of waste recycling, the solid waste recycling device comprises a conveying device, the conveying device is used for crushing and cleaning plastic or glass solid waste, a melting device is arranged on the conveying device, and the melting device is used for melting the plastic or glass solid waste; and a cleaning device is arranged on the melting device and used for pushing out the part, which cannot be melted, in the solid waste. Crushed solid waste is conveyed through the motor, the crushing mechanism is driven by the same motor to crush the solid waste, subsequent cleaning and melting are facilitated, and the crushing efficiency is improved; when the melting device melts the crushed solid waste, the cut-off mechanism continuously cuts off the melt into water drops, the melt is cooled through cooling oil, the cooled recycled material is intermittently pushed out through the material pushing plate to be collected, the automation degree is high, and the recycling effect is good.