723 results about "Material recycling" patented technology

The invention provides a metal material recycling device and a method for leaching fluorine beryllium thallium and lithium rubidium cesium in lithium slag. Relates to the field of metal material recycling, and comprises a leaching tank placed on the ground through four supporting frames, the top of the leaching tank is fixedly provided with a top cover, and the bottom of the leaching tank is fixedly provided with a bottom cover. According to the metal material recycling device and the leaching method for fluorine beryllium thallium and lithium rubidium cesium in the lithium slag, the ultrasonic generator is arranged to supply energy to the first ultrasonic transducer and the second ultrasonic transducer to generate ultrasonic waves, the ultrasonic waves generate microjet flow to impact the surface of minerals, acid liquor permeation and ion diffusion are accelerated, the leaching time is shortened, and the efficiency is improved; the surface of the lithium slag is not prone to passivation, the leaching rate of target metal ions is increased, the leaching liquid is pumped out through the water suction pump, manual contact with the leaching liquid in the next solid-liquid separation procedure is facilitated, dilute sulfuric acid is supplemented through the acid supplementing pipe, then the lithium slag is placed through the funnel, and the consistency and controllability of starting of the leaching reaction are guaranteed.

The invention belongs to the technical field of lithium ion battery material recovery, and discloses a regeneration, repair and doping method of a waste lithium iron phosphate material and a regenerated positive electrode material. The method comprises the following steps: firstly, immersing waste LiFePO4 powder into a mixed solution of citric acid and ascorbic acid, oscillating to selectively dissolve out Fe < 3 + > impurities, and synchronously reducing Fe < 3 + > on the surface to Fe < 2 + >; then Li2CO3 is added into the leached powder for lithium bit compensation, and ball milling and uniform mixing are carried out; then Al2O3 and TiCl3 are added for aluminum-titanium co-doping, and ultrasonic dispersion is carried out uniformly; and finally, carrying out segmented sintering. In the first stage, sintering is carried out in an air atmosphere at 300-350 DEG C; in the second stage, sintering is performed at 600-700 DEG C in an inert gas atmosphere; and finally obtaining the regenerated positive electrode material. According to the method, waste lithium iron phosphate batteries can be turned into wealth, the lithium iron phosphate positive electrode material with good electrochemical performance is obtained, the complex and expensive impurity removal process is omitted, the cost is low, and possibility is provided for large-scale industrial regeneration and repair of waste lithium iron phosphate active substances.

The invention discloses a fiber-reinforced thermoplastic resin-based composite material based on dynamic reversible interface interaction and a preparation method and a recycling method thereof. The fiber-reinforced thermoplastic resin-based composite material comprises a modified thermoplastic resin matrix and a modified fiber reinforcement which are compounded with each other, the modified thermoplastic resin matrix and the modified fiber reinforcement are bonded and connected through dynamic bonds with dynamic reversible interface interaction. Through construction of dynamic reversible interface interaction in the fiber-reinforced thermoplastic resin-based composite material, infiltration compounding and interface bonding between a fiber reinforcement and a high-viscosity thermoplastic resin melt can be enhanced, and interface debonding and total-value recycling of the fiber reinforcement in the composite material recycling process can be effectively promoted; therefore, the bottleneck problems of poor wettability in the forming process, low bonding fastness at a heterogeneous interface, insufficient mechanical properties, low waste recovery value and the like confronted by the development of the fiber-reinforced thermoplastic composite material are effectively solved.

The invention belongs to the technical field of lithium battery material recovery, and particularly relates to a method for recovering a waste lithium iron phosphate positive electrode material. The method comprises the following steps: (1) grinding and sieving the positive electrode material of the waste lithium iron phosphate battery, mixing with an alkaline solution, stirring and leaching, and carrying out solid-liquid separation to obtain a lithium-rich solution and leaching residues; (2) introducing a saturated sodium carbonate solution into the obtained lithium-rich solution, carrying out heating reaction, filtering, taking a solid phase, and drying to obtain lithium carbonate; and the obtained leaching residues are dried, and ferroferric oxide is obtained. According to the method, the waste lithium iron phosphate battery positive electrode material is leached through the alkaline liquid phase, it can be guaranteed that lithium and iron in waste lithium iron phosphate are separated through a one-step leaching method, and therefore selective lithium extraction is achieved. The whole technological process is convenient to operate, mild in reaction condition and low in energy consumption, does not need to use any acid or oxidant, avoids generation of a large amount of waste liquid and harmful gas, and is high in selective lithium extraction efficiency.

The application discloses a preparation device for regenerated colored lycra fabric fibers, belongs to the technical field of clothing fiber recycling equipment, and solves the problems of low impurity removal rate, poor cutting effect and low efficiency in the prior art. The device comprises a conveying device, which is used for feeding materials and conveying the materials into a cleaning device. The cleaning device is used for cleaning the materials. A recycling device is used for recycling the materials. The cleaning device is arranged below the output end of the conveying device. The recycling device is arranged at the side of the cleaning device. A transfer device is further arranged above the cleaning device and the recycling device. The application cleans the materials in the basket through the cleaning device, effectively removes dust and other impurities on the materials, improves the quality of material recycling, and increases work efficiency. The material is dried in the drying device first, and then cut and crushed for recycling, so that the cutting effect is ensured and the work efficiency is high.

The utility model relates to the technical field of UTG glass cutting, and discloses a UTG glass raw material production cold section cutting production line, which comprises a transverse cutting conveying mechanism, a transverse cutting mechanism, a transverse cutting mechanism and a transverse cutting mechanism, the longitudinal cutting mechanism is used for longitudinally cutting according to requirements; the splitting mechanism is arranged on the right side of the transverse cutting and conveying mechanism and used for separating the cut UTG glass; the cracked ear material conveying mechanism is arranged on the right side of the splitting mechanism and is used for separating ear materials from the cut glass and conveying finished products away; the transverse cutting conveying mechanism comprises a first rack, and a plurality of first sliding rails are arranged at the top of the first rack at equal intervals. According to the utility model, through the transverse follow-up cutting, the longitudinal high-precision cutting and split piece separation, the dust collection assembly and the automatic variable-width conveying technology, the cutting efficiency and precision are improved, the split piece separation smoothness, the dust treatment capacity and the offcut recovery capacity are optimized, and the problems of low efficiency, poor precision, serious pollution and incomplete offcut treatment in the prior art are solved.

The invention relates to the technical field of battery material recovery, and particularly discloses a method for efficiently recovering lithium and ferrous sulfate heptahydrate in retired lithium iron phosphate through total leaching and green impurity removal. Comprising the following steps: 1, adding strong base and a carbon source into black powder, and calcining at high temperature in an inert atmosphere; step 2, dissolving in pure water after calcining, and carrying out suction filtration to obtain a lithium salt solution and ferrous hydroxide; 3, sulfuric acid is added into ferrous hydroxide for suction filtration, and graphite and a ferric salt solution are obtained; drying the ferric salt solution to obtain ferrous sulfate heptahydrate; step 4, adding alkali into the lithium salt solution to obtain a purified lithium salt solution; 5, introducing carbon dioxide into the purified lithium salt solution, and adding alkali to generate lithium carbonate precipitate; and 6, finally carrying out heat preservation, suction filtration, washing and drying to obtain a lithium carbonate finished product. The technical problems that in the prior art, a traditional decommissioned lithium iron phosphate battery grading recycling technology is complex in production process, more waste liquid pollution is generated, and the production cost is relatively high are solved.

The invention discloses a thermoplastic wave-absorbing material as well as a preparation method and application thereof. The thermoplastic wave-absorbing material comprises a silane coupling agent modified absorbent and thermoplastic polyurethane, wherein the thermoplastic polyurethane is prepared from the following raw materials in parts by mass: 100 parts of a polyurethane matrix, 2 to 4 parts of an anti-hydrolysis agent, 2 to 4 parts of an antioxidant, 0.1 to 0.5 part of a mildew preventive and 2 to 10 parts of a plasticizer. The thermoplastic wave-absorbing material disclosed by the invention has good wave-absorbing performance in a range of 1-18GHz, has temperature resistance, flexibility, mechanical strength and environmental adaptability which are equivalent to those of a thermosetting material, and has a wide application prospect. According to the preparation method, extrusion molding is adopted, continuous production can be achieved, use of solvents is reduced, the method is more environmentally friendly, the material can be recycled after being damaged, and therefore the material cost is effectively reduced.

The invention discloses a method for recovering and repairing positive and negative electrode materials of a lithium ion battery, which comprises the following steps of: crushing a waste lithium ion battery into sheets, volatilizing electrolyte through low-temperature heat treatment, and screening out an aluminum shell and a diaphragm through winnowing to obtain a positive and negative electrode sheet mixture; performing color sorting on the positive and negative electrode plate mixture through a color sorter, and separating to obtain a positive electrode plate and a negative electrode plate; sintering the positive plate for the first time to volatilize the binder, and then sintering for the second time to complete repair to obtain a positive electrode material and aluminum powder; and repairing the negative plate directly through one-time sintering to obtain a negative electrode material and copper powder. According to the method, separation, recovery and repair of the positive and negative electrode materials in the waste lithium ion battery are directly realized through crushing, low-temperature heat treatment, winnowing, color sorting and sintering, the positive and negative electrode materials are high in recovery rate and low in impurity content, and the positive and negative electrode materials in the waste lithium ion battery can recover or even exceed the original performance through accurate repair.

The invention discloses a power battery disassembling method and related equipment, and relates to the technical field of power batteries, and the method comprises the following steps: obtaining multi-mode sensing data of a to-be-disassembled battery pack; performing risk assessment on the multi-modal sensing data based on a preset safety threshold, and generating a risk level matrix; based on the multi-modal sensing data and the risk level matrix, analyzing and processing the battery pack topological relation of the to-be-disassembled battery pack through a preset adaptive decision model to obtain a disassembling path planning scheme; and based on the disassembling force parameter and the disassembling path priority, controlling the heterogeneous robot to collaboratively execute the disassembling operation on the to-be-disassembled battery pack by an execution unit. Through multi-mode sensing, risk assessment, self-adaptive path planning and heterogeneous robot collaborative operation, high safety, high efficiency and high precision in the power battery pack disassembling process are achieved, and the material recycling value is improved.

A system for selectively opening flexible containers, such as plastic bags, in a mixed solid waste stream is disclosed, for use in Material Recovery Facilities (MRFs) or other contexts. The system may include a conveyor configured to transport waste, a sensor configured to detect the presence and position of flexible containers, and a multi-degree-of-freedom positioning device that moves a cutting tool relative to the containers. A processor, in communication with the sensor and positioning device, may calculate a cutting path and control the positioning device to execute the cutting operation. The system may utilize various cutting tools, including punches, blades, spades, shovels, and motorized saws, as well as non-contact fluid-based cutting technologies such as air or water jets. Additionally, the system can dynamically adjust the cutting trajectory based on real-time feedback and environmental conditions. The method provides an adaptable solution to open bags without damaging recyclable materials, improving throughput and reducing waste in mixed waste streams.

The invention discloses an automobile laser cutting waste classified collection and storage device, and relates to the field of laser cutting, the automobile laser cutting waste classified collection and storage device comprises a bearing frame, a bottom frame and long steel pipes, the interior of the bottom frame is fixedly connected with two sets of inclined plate frames in mirror symmetry, and the two sets of long steel pipes are fixedly connected to the middle position of the lower side of the bottom frame; a classified collection mechanism is arranged below the bottom frame and located between the two sets of long steel pipes. Waste materials are gathered through the angle plates and the protruding edges of the inclined plate frame, and it is ensured that the waste materials accurately fall into the classified collection mechanism; the first net rack blocks small metal materials, the second net rack retains chippings, and the bottom box collects cooling liquid, so that the three types of materials are thoroughly separated; the gear motor drives the crank rod and the push rod to drive the second net rack to swing, accumulation is prevented, the screening efficiency is improved, the separation effect is guaranteed, no mixed collection exists in the whole process, small metal materials can be recycled, chippings can be treated in a centralized mode, cooling liquid can be filtered and reused, resource waste is thoroughly avoided, and the energy-saving and consumption-reducing requirements of a workshop are met.

The invention relates to the technical field of building material recycling management, and discloses a recycling management system and method for degradable materials of building materials. The system comprises a material feature extraction network, a state prediction model network and a recovery optimization module. The material feature extraction network generates initial feature space representation data and current feature space representation data according to the degradation monitoring data of the degradable building material; the state prediction model network combines the initial feature space representation data and the initial degradation monitoring data to predict a recovery state change sequence of the material; the recovery optimization module compares the current feature space representation data with the material state on the predicted recovery state change sequence, calculates an optimization parameter of each current material state, learns a strategy of maximizing an expected cumulative optimization index according to the optimization parameter, obtains an optimization parameter of the current degradation monitoring data, and recovers the degradation monitoring data according to the optimization parameter; therefore, the recycling process of the degradable building material can be guided.

The application belongs to the technical field of waste lithium battery positive electrode material recycling, and specifically discloses a method for preparing basic lithium iron phosphate from waste lithium iron phosphate positive electrode powder, which comprises the following steps: subjecting the waste lithium iron phosphate positive electrode powder to acid leaching treatment, and performing solid-liquid separation to obtain a leaching solution; subjecting the leaching solution to oxidation treatment, and then performing precipitation treatment with sodium hydroxide, and performing solid-liquid separation to obtain a lithium solution and iron-phosphorus slag; subjecting the slurry formed by slurrying the iron-phosphorus slag and a lithium source to hydrothermal treatment at a temperature of 200 DEG C or above to obtain the basic lithium iron phosphate. The application also comprises a scheme for preparing lithium iron phosphate by mixing and reacting the basic lithium iron phosphate and a carbon source. The scheme can obtain basic lithium iron phosphate with high phase purity, and further can prepare regenerated lithium iron phosphate material with better performance.

The invention relates to the technical field of lithium battery cutting, in particular to a multifunctional cutting device for lithium battery positive electrode material recycling, which comprises a workbench, a circulation table A and a circulation table B are mounted on the workbench, a supporting table is arranged on the inner side of a through groove of a vertical plate A, and vertical cutting assemblies are arranged on both sides of the supporting table; a carrying frame is arranged on the side portion of the circulation table B, a loading table is arranged on the carrying frame, a horizontal cutting assembly is arranged on the side portion of the loading table, and a reciprocating driving assembly used for driving the horizontal cutting assembly to do horizontal reciprocating motion is installed in the loading table. Through the automatic step-by-step cutting process, the tabs are vertically cut and independent in priority, so that the recovery efficiency is improved; laser is adopted to precisely cut the shell, so that material cross contamination caused by traditional cutting is avoided, and the purity of the positive electrode material is guaranteed; and through a multi-point multi-direction clamping mechanism and a precise transmission guide system, the high stability and safety of the whole cutting process of the tab and the shell are ensured.

The invention discloses an order and inventory-based intelligent nesting method and system, a medium and a product, and relates to the field of intelligent manufacturing and digital production management. The method comprises the following steps: calculating a lag time span value based on planned assembly time of a to-be-produced part, and calculating an inventory load value representing an advanced production load according to the lag time span value; after reference parts needing to be produced recently are arranged on the raw material plate, candidate filling parts capable of being contained in the remaining discrete gap areas are screened; calculating a material recovery utility value brought by the candidate filling part; and when the material recovery utility value is greater than the stock load value, determining the candidate filling parts as effective supplement parts and determining the arrangement position, and finally generating a nesting and typesetting scheme. According to the method, the material saving income and the inventory holding cost are quantitatively balanced, so that the problems of premature production and inventory overstock of parts which are not in urgent need due to blind pursuit of the plate utilization rate in related technologies are solved, and the balance between the material utilization rate and the production circulation efficiency is realized.

The invention relates to the technical field of high polymer material recovery, in particular to a composite catalyst for preparing DMT through PET alcoholysis and a preparation method and application of the composite catalyst. The composite catalyst comprises a solid acid material which is obtained by carrying out proton transfer reaction on silica gel of which the surface is grafted with aluminum alkyl and perfluoroalkyl sulfonic acid of which the general formula is Rf-SO3H, wherein Rf is a perfluoroalkyl group with the carbon atom number of 1-10. Through the synergistic effect of the components, the composite catalyst shows excellent performance in the process of degrading PET (Polyethylene Terephthalate) by monohydric alcohol. When methanol is used as an alcoholysis agent, the yield of the main product dimethyl terephthalate (DMT) can reach 95% or above, the catalytic efficiency is high, the stability is good, an efficient catalyst is provided for industrialization of chemical recovery of PET, and the method has important economic and environmental values.

The application provides a plastic track material recycling processing device, and belongs to the technical field of plastic track recycling. The device comprises a kneading assembly for kneading plastic track material, the kneading assembly comprises a kneading box and a kneading cylinder installed on the top of the kneading box, the diameter of the kneading box is larger than that of the kneading cylinder, the bottom of the kneading cylinder is fixedly connected with a kneading ring, and the outside of the kneading box is provided with a jacking assembly. The kneading assembly, the jacking assembly and the filtering assembly are arranged, and the kneading, layering and dehydration of the plastic track waste are integrally processed through linkage, energy consumption and pollution caused by multi-device transfer are avoided, the plastic recycling rate and the processing efficiency are significantly improved, and the overall device has the characteristics of simple operation, energy saving and environmental protection, and excellent recycling effect.

The invention discloses a process method for preparing aluminum fluoride by recovering electrolytic aluminum electrolyte, and relates to the technical field of waste material recovery. The invention relates to a process method for preparing aluminum fluoride by recovering electrolytic aluminum electrolyte. The preparation method comprises the following steps: firstly, grinding the carbon residue or electrolyte into powder, wherein the fineness is greater than 150 meshes; adding water into the powder, pulping, and adding a certain amount of aluminum sulfate or aluminum hydroxide; sulfuric acid is added for leaching under the stirring condition, the leaching temperature ranges from 70 DEG C to 100 DEG C, the leaching time ranges from 2 h to 5 h, and the pH of the leaching end point ranges from 1 to 2; adding water to dilute the filtrate, adding caustic soda flakes to adjust the pH value to 12-14 to remove impurities, and filtering out insoluble hydroxides to obtain a mixed salt solution of sodium fluoride and sodium metaaluminate; adding sulfuric acid into the mixed salt solution while stirring to adjust the pH value to 3-6, and reacting at the temperature of 60-100 DEG C for 2-5 hours to obtain aluminum fluoride slurry; and filtering and washing the slurry to obtain aluminum fluoride trihydrate, and calcining at 500-700 DEG C to obtain anhydrous aluminum fluoride with the purity of more than 95%. The method turns waste into wealth, recycles resources, and is short in process flow, low in cost and high in recovery rate.

The invention discloses asphalt concrete recycled material recycling equipment, which belongs to the technical field of asphalt concrete milling material processing and comprises feeding equipment, heating equipment and metering and stirring equipment. The heating equipment comprises a recycled material regeneration heating roller, a combustor and a low-temperature hearth, the feeding equipment is located at the input end of the recycled material regeneration heating roller, and the output end of the recycled material regeneration heating roller is communicated with the combustor through the low-temperature hearth. The feeding direction of the reclaimed material is opposite to the flame direction of the combustor, and the combustor and the reclaimed material regeneration heating roller are transited through the low-temperature hearth, so that direct contact between the reclaimed material and high-temperature flame is avoided. Low-temperature airflow is conveyed to the inner barrel through the backflow cavity, so that the outlet temperature of the low-temperature hearth is kept in a low-temperature state of about 600 DEG C. The recycled material is gradually heated in the recycled material regeneration heating roller, so that the recycled material and asphalt are prevented from being overheated and aged, the heating efficiency is higher, and the heat utilization is more sufficient.

The invention discloses a cement tanker cleaning waste recycling mechanism which comprises a circulating pool and a circulating pump, the circulating pump can continuously convey slurry waste in the circulating pool into a tanker, the slurry waste repeatedly cleans the tanker, the concentration of the slurry waste is increased, and the standard of semi-finished products of materials is met; the grain recycling pool can be used for collecting rainwater, hardened waste on the outer wall of the tank car and particle waste; and the arc-shaped scraping plate is used for conveying the hardened waste materials and the particle waste materials in the grain material recycling pool into the grain material storage pool. The grain recycling system has the beneficial effects that through the arrangement of the circulating pool, the grain recycling pool and the grain storage pool, the grain recycling pool can collect particle waste on a tank car body, particle waste washed in along with rainwater in a plant and particle waste separated by a solid-liquid separator, the recycling range is expanded, waste water in the plant is fully utilized, and the grain recycling system is environmentally friendly and free of pollution. And zero emission is realized.

The application belongs to the technical field of polymer material recycling, and particularly relates to a high-efficiency enzymatic hydrolysis process of polycaprolactam. The high-efficiency enzymatic hydrolysis process of polycaprolactam provided by the application comprises the steps of acid pretreatment, enzymatic catalytic depolymerization and product post-treatment. The process combines sulfuric acid and a multi-enzyme system to treat PA6 with high substrate concentration. The physical form and chemical accessibility of PA6 are significantly changed through sulfuric acid pretreatment, which creates conditions for subsequent enzymatic hydrolysis reaction, and realizes efficient, deep and green degradation of PA6.

The invention relates to the technical field of metallurgy, and particularly discloses a low-cost and high-utilization-rate copper-secondary aluminum compound process which comprises the following steps: pre-treating recycled secondary aluminum; adding 0.20-0.32% of Al-80Fe intermediate alloy into the molten aluminum, further adding 0.05-0.15% of at least one of a rare earth element Y or a rare earth element Sc, stirring for 5-10 minutes, adjusting the components to be qualified, and reducing the temperature to 730-750 DEG C; transferring the molten aluminum into a degassing box, introducing argon for degassing for 15-20 minutes, and standing for 12-15 minutes; the T2 copper strip is subjected to texturing treatment, so that the surface roughness of the T2 copper strip is controlled to be 0.1-0.3 mu m, and the T2 copper strip is put into an unwinding machine after being blown off; casting-rolling compounding is conducted, and molten aluminum enters a crystallizer through a chute at the temperature of 700-720 DEG C; according to the method, the secondary aluminum is adopted as a main base material, and a closed-loop production system covering rim charge recovery and direct reuse is constructed, so that maximum utilization of raw materials is realized, and resource waste and raw material purchase cost are reduced.

The invention relates to the technical field of titanium sponge production reduction furnaces, in particular to an automatic cleaning device for a titanium sponge production reactor and a control method, and the device comprises a sand blasting cleaning machine, a compressed air conveying unit and a cleaned material separation device; the sand blasting cleaning machine comprises a sand blasting unit, a material recovery unit and an automatic reactor cleaning trolley device with eight groups of fixed pulleys, and the sand blasting unit is provided with a sand blasting cleaning rod, a sand blasting pre-storage control unit, a compressed air storage unit and a compressed air control unit. The material recycling unit is provided with a cleaned material adsorption device, a cleaned material recycling and transferring unit and a recycled cleaned material conveying pipeline; a compressed air inlet pipeline is connected with a compressed air conveying unit and a compressed air control unit; according to the control method, forward cleaning and reverse cleaning are carried out, the pressure of 0.6-0.7 Mpa is maintained, cleaning sand of 0.5-2.0 mm is adopted, and cleaning is completed within 40-60 minutes. The device is high in automation degree, stable in cleaning quality and capable of protecting the reactor, reducing cost, improving efficiency and eliminating potential safety hazards.

The invention relates to the technical field of rack production, and particularly discloses a lateral balance injection molding mold for producing racks, the lateral balance injection molding mold comprises a supporting base, the top of the supporting base is fixedly connected with a first connecting support, and one side of the first connecting support is fixedly connected with a guide sliding strip; the first connecting support is slidably connected with a discharged material recycling device through a guide sliding strip, the part, located on one side of the discharged material recycling device, of the top of the supporting base is fixedly connected with a supporting top plate through a support, and the center position of the bottom of the supporting top plate is fixedly connected with the fixed end of a telescopic air cylinder; the movable end of the telescopic air cylinder is fixedly connected with an upper mold, the part, directly facing the upper mold, of the top of the supporting base penetrates through and is fixedly connected with a powder vibration device, and according to the lateral balance injection molding mold for producing the rack, the size precision and the structural stability of rack molding are guaranteed, and the production efficiency and the environmental protection property are improved.

The invention relates to a material recovery system and a control method and device thereof, electronic equipment and a storage medium. The system is characterized in that a first output end of a material volatilization module is connected with a first input end of a first recovery module through a first pipeline, and is connected with a first input end of a heating module through a second pipeline; the first output end of the first recycling module is connected with the first input end of the second recycling module; the second output end of the first recovery module is connected with the first input end of the container module, and the second output end of the first recovery module is used for recovering the recovered material liquid to the container module; the first output end of the second recovery module is connected with the second input end of the container module, the second output end of the second recovery module is connected with the first input end of the heating module, and the third output end of the second recovery module is connected with the first input end of the waste gas treatment module; the first output end of the heating module is connected with the first input end of the material volatilization module. Therefore, materials can be efficiently recycled, and meanwhile environmental pollution is avoided.

The present application relates to the technical field of ammonia compound preparation, in particular to a method for preparing ammonium sulfate and co-producing sodium bicarbonate by using sodium sulfate, comprising the following steps: mixing industrial-grade liquid ammonia with deionized water to prepare ammonia water with a free ammonia concentration of 60-120 ti (ti is the abbreviation of titer, which is 1 / 20 mol / L), controlling the temperature of the mixing process to be less than or equal to 40 DEG C to avoid ammonia volatilization, pre-carbonizing by passing in CO2 under the conditions of 20-70 DEG C and a carbon dioxide pressure of 0.1-0.6 MPa, and adding sodium sulfate or a mixture of sodium bicarbonate and mirabilite to obtain a pre-carbonized liquid. The present application adopts an integrated process of pre-carbonization, clarification, carbonization, ammonia separation and low-temperature crystallization, and ammonia evaporation circulation, and can be operated continuously or intermittently, has low industrial implementation difficulty, strong running stability, separates ammonium sulfate by using ammonia separation and low-temperature crystallization technology, replaces the traditional evaporation and concentration process, combines material recycling design, and reduces the energy consumption per unit product compared with the traditional process.

The utility model relates to solid waste material recovery technical field discloses a kind of efficient blending equipment of preparation multiple solid waste materials, including equipment box, two baffle and cutting assembly, two the baffle opposite side lower side is all provided with accommodating groove, two the accommodating groove opposite side is fixedly provided with adjusting assembly, the cutting assembly includes four bearing sleeve, four drive motor, two first rotating roller and two second rotating roller, four the drive motor output end is all fixedly provided with rotating rod, two the first rotating roller with two second rotating roller periphery evenly fixedly provided with multiple cutting piece, the adjusting assembly includes two adjusting plate, two slide bar, two fixed plate and four reset spring, two the adjusting plate opposite side middle part upper side is all fixedly provided with inductor. In the utility model, the uniformity and efficiency of solid waste blending treatment are improved, and the feeding blockage condition generated in the process of processing is reduced.

The invention relates to the technical field of agricultural machinery material recycling, and provides a material recycling device which comprises a packaging part, a first conveying part, a second conveying part and a recycling part, the packaging part is located above the first conveying part, the outlet end of the first conveying part is adjacent to the second conveying part, and the second conveying part is communicated with the recycling part. The first conveying part comprises a conveying assembly and a pushing assembly, the conveying assembly is located below the packaging part, the pushing assembly is arranged at the outlet end of the conveying assembly, and the pushing assembly communicates with the second conveying part. The conveying assembly in the first conveying part receives the materials lost in bundling and conveys the materials to the pushing assembly, the pushing assembly rolls the recycled materials to the second conveying part, then the second conveying part rolls the materials into the recycling part to be recycled in a unified mode, and material recycling is completed. Therefore, the problem of material loss is solved, the operation efficiency is improved, the ground is clean, and resource waste and cost increase are avoided.

The application discloses modified concrete waste slurry, a preparation method and application thereof, and belongs to the technical field of building material recycling. The modified concrete waste slurry comprises the following raw materials in parts by mass: 100 parts of concrete waste slurry, 0.01-0.05 parts of water reducing agent, 0.5-1.5 parts of formic acid, 0.1-1.5 parts of activating material, 0.03-0.6 parts of retarder and 0.03-0.1 parts of thickening agent. The modification of the concrete waste slurry efficiently activates the cementitious components in the waste slurry, and improves the adaptability of the waste slurry to fresh concrete. The modified concrete waste slurry is applied to the preparation of concrete, and has important significance for realizing the resource utilization of the waste slurry, reducing production cost and promoting the green transformation of the concrete industry.