36results about How to "Efficient and stable production" patented technology

The invention relates to a hot-rolled wire rod for a 2060MPa bridge cable and a manufacturing method of the hot-rolled wire rod, after C-Si-Mn-Cr-V-Nb component is rolled and spun into a wire rod, the wire rod is subjected to online molten salt strong isothermal treatment, so that the wire rod is cooled at a cooling speed of greater than or equal to 34 DEG C / s, and enters a sorbite phase region from an austenite state to form a structure mainly comprising fine lamellar spacing sorbite, and isothermal treatment is carried out; and finally, through roller way slow cooling, the hot-rolled wire rod with a microscopic structure mainly comprising tempered sorbite and the balance being a mixed structure composed of ferrite and microspheroidized carbide is prepared, a deteriorated structure influencing the performance of a wire rod finished product in the production process can be effectively controlled, stable production is achieved, and the strength and plasticity matching of the wire rod is improved. The tensile strength is 1440-1490 MPa, the percentage reduction of area is 42%-46%, and the method is suitable for efficient and stable production and manufacturing of the 2060 MPa bridge cable.

The invention discloses a casting pouring system which comprises a casting platform, a rail placed on one side of the casting platform, a motor, air pumps arranged at the two ends of the casting platform and a control console used for controlling equipment operation, the control console is in telecommunication connection with the air pumps and the rail, a casting mechanism is arranged on one side of the casting platform, and the casting mechanism comprises a nut sleeve. The nut sleeve is movably connected with a transmission mechanism used for transmission, the transmission mechanism comprises a threaded rod, and the threaded rod is movably connected with three mold mechanisms used for casting. The bottom of a cover plate of the slag filtering mechanism is connected with a protection plate through a rotating shaft, when inert gas is blown into the casting ladle, gas blows a half-moon plate to drive the protection plate to rotate, an arc plate unidirectionally blocks molten slag under the action of a spring, the molten slag is effectively intercepted in the flowing process of molten metal, the problem that in existing equipment, the molten slag is difficult to separate from the molten metal is solved, and the service life of the molten slag is prolonged. The slag inclusion defect formed in the casting is avoided, and the mechanical property and the quality stability of the casting are improved.

The invention provides a green methanol system capacity optimization configuration method, and relates to the technical field of energy and chemical industry. The method comprises the following steps: S1, establishing a framework of a green methanol system; s2, determining an optimization period and time granularity; s3, establishing a to-be-optimized variable of the green methanol system; s4, establishing an optimization objective function, wherein the optimization objective function enables the annual net operation cost to be the lowest; s5, establishing a constraint condition equation, wherein the constraint condition equation comprises an electric power balance constraint, an upper and lower network electric quantity constraint, an upper and lower network power constraint, an electricity abandoning rate constraint, a unit product carbon emission constraint, a material balance constraint and a workshop section operation constraint; s6, configuring an optimization algorithm; s7, inputting capacity optimization configuration parameters of the green methanol system; and S8, solving an optimization problem, and outputting an optimization result of the green methanol system. The method is used for improving the energy utilization efficiency, reducing the cost and realizing high efficiency and stability of green methanol production, and has important practical significance and wide market prospects.

The invention relates to the field of building material production, and discloses a combined sand making process based on a building aggregate rod mill and a column crusher, which comprises the following steps: sand making raw material pretreatment: dividing a building aggregate raw material into a rod mill feeding raw material of 310 mm and a column crusher feeding raw material of 316 mm; sand making, wherein the raw materials of 310 mm are fed into a rod mill to be crushed, and the raw materials of 316 mm are fed into a column crusher to be crushed, rubbed and screened; sand material treatment, wherein the crushed machine-made sand is subjected to grading and dewatering treatment through a wheel type sand washing machine; and machine-made sand finished product treatment. Through combined use of the rod mill and the column crusher, the sand forming rate and the particle size control precision are improved, and the stable quality of finished sand is ensured; an intelligent automatic control system is adopted, process parameters are monitored and adjusted in real time, and equipment faults and operation errors are reduced; a wastewater treatment system is integrated, so that efficient recovery and cyclic utilization of wastewater are realized, water resource consumption is reduced, and environmental protection performance is improved.

The invention relates to the technical field of fertilizers for tea gardens, and discloses a selenium-rich fertilizer for tea trees and a preparation method of the selenium-rich fertilizer. 4-8 parts of ammonium nitrate; 2.1 to 3.5 parts of calcium ammonium nitrate; 6-11 parts of ammonium sulfate nitrate; 10 to 14 parts of triple superphosphate; 15-19 parts of powdered rock phosphate; 22-28 parts of plant ash; 8 to 12 parts of sodium selenite; 7 to 9 parts of selenosulfinic acid; 0.4 to 1.3 parts of zinc; 0.73 to 1.12 parts of iron; 0.56 to 0.84 part of manganese; 4-7 parts of lime; 1-3 parts of sulfur; 0.81 to 0.93 part of bentonite; by adding the sodium selenite and the selenosulfinic acid in a set proportion into the raw materials and combining a staged preparation process, efficient and stable selenium fertilizer production can be realized, so that the selenium content in the tea leaves is increased, and the problems that the selenium content in the tea leaves is insufficient due to lack of addition of selenium elements in an existing tea tree fertilizer and the selenium content in the tea leaves is low are finally solved. The requirement of the market on the selenium-rich tea cannot be met.

The invention discloses a bio-organic fertilizer production system and production process, and relates to the technical field of bio-organic fertilizer production.The bio-organic fertilizer production system comprises a fermentation tank, the outer wall of the fermentation tank is fixedly connected with a ladder assembly, the middle of the top of the fermentation tank is fixedly connected with a stirring motor, and the rear side of the top of the fermentation tank is fixedly connected with a fungicide quantitative feeding mechanism; a discharging pipeline position adjusting mechanism is fixedly connected to the inner side of the bottom of the fungicide quantitative feeding mechanism, a fungicide feeding pipe channel is formed in the side, opposite to the fungicide quantitative feeding mechanism, of the rear side of the top of the fermentation tank, and a feeding pipeline is fixedly connected to the right side of the top of the fermentation tank; according to the device, by arranging the microbial agent quantitative feeding mechanism, the microbial agent quantitative feeding mechanism frame, the pushing mechanism and the quantitative feeding box, the problem that the fermentation effect of the organic fertilizer is affected due to dosage errors possibly caused by manual quantification is solved; the method comprises the following steps: firstly, extracting a microbial agent from a microbial agent box into a microbial agent feeding box with a one-time feeding amount;

The utility model relates to robot technical field especially, more degree of freedom robot end effector's quick change structure of quick change structure, including base, be provided with more degree of freedom robot main body on the base, more degree of freedom robot main body is fixedly arranged in the top of base through the rotary base of bottom, the end of more degree of freedom robot main body is provided with quick dismounting mechanism, and this quick dismounting mechanism is used for quick change of the execution tool to change the efficiency of execution tool, saves a lot of time and manpower cost, reduces the dependence on single tool or production line again, when facing different workpieces and complex process requirements, need not because tool adaptation problem and stop work adjustment, enhance the fault tolerance of production system, let the robot can flexible adaptation diversified production scene, guarantee the high efficiency and stability of production.

The invention discloses a bacillus subtilis genome integrated plasmid for efficient and stable expression of genes and application of the bacillus subtilis genome integrated plasmid in production of beta-galactosidase. The plasmid comprises a bacillus subtilis promoter, an RBS sequence, a terminator, a bacillus subtilis resistance gene, a genome integration homologous arm, an escherichia coli replicon and a resistance gene. The homologous arm is selected from upstream and downstream sequences of sites behind termination codons such as genes spxA, tatCY, rlmCD and the like, so that exogenous genes are accurately integrated to a plurality of non-essential sites on the premise of not damaging essential genes. The invention also provides a method for constructing a bacillus subtilis engineering strain for producing beta-galactosidase by using the plasmid. The integration system is high in expression level, stable expression can be achieved without adding antibiotics and inducers, the fermentation cost is remarkably reduced, the enzyme production efficiency is improved, and the integration system is suitable for industrial enzyme preparation production.

The utility model discloses an air extractor of laundry condensate bead production equipment, belongs to the technical field of machining equipment, and provides an air extractor capable of effectively improving the production efficiency and quality of laundry condensate beads, the air extractor comprises a lifting mechanism, a sliding mechanism, a conveying mechanism and a mold plate, and the lifting mechanism and the sliding mechanism are located between the conveying mechanism; the lifting mechanism is suitable for adjusting the height of the sliding mechanism, a mold cavity is formed in the end face, back to the conveying mechanism, of the mold plate, at least two air holes are formed in the end face, opposite to the conveying mechanism, of the mold plate, and a positioning column and an air suction disc are arranged on the sliding mechanism. According to the utility model, the liftable and slidable positioning column and the air suction disc structure are arranged below the translating mold plate, the air suction disc can move along with the mold plate by utilizing the positioning effect provided by the positioning column, plastic suction is carried out in the moving process, a film is formed before filling, and the formed film is connected to a base film, so that the production efficiency is improved, and the production cost is reduced. The shape and the structure are more stable, and the product quality of the filled laundry condensate beads is improved.

The invention relates to a hot-rolled wire rod for a 2430 MPa grade stranded wire and a manufacturing method of the hot-rolled wire rod, after Al-Si-V chemical components are rolled and spun into a wire rod, the wire rod is subjected to online molten salt rapid quenching isothermal treatment, so that the wire rod is firstly subjected to front-section molten salt treatment and is rapidly cooled, and enters a sorbite phase region from an austenite state to form a structure taking a sorbite structure as a main structure; and then carrying out rear-section molten salt treatment, reducing the circulation volume of molten salt, promoting the unconverted retained austenite to be continuously converted into sorbite, carrying out isothermal tempering, promoting fusing of a part of sorbite lamellar layers, and finally carrying out slow cooling through a roller way, so as to prepare the hot-rolled wire rod of which the microscopic structure comprises a mixed structure consisting of tempered sorbite, tempered ferrite and fused sorbite, the material cost can be reduced, abnormal structures can be inhibited, the tensile strength is 1581-1630 MPa, the percentage reduction of area is 34%-39%, off-line heat treatment is not needed, and efficient and stable production of the ultra-high-strength stranded wire is promoted.

This invention provides a lithium titanium dioxide sodium phosphate anode material and an aqueous lithium-iodine battery based thereon, belonging to the field of secondary battery technology. The chemical formula of the lithium titanium dioxide sodium phosphate anode material is Li. x Na y Ti2(PO4)3, where 0

The invention belongs to the technical field of electrochemical preparation of hydrogen peroxide, and particularly discloses a method and a device for preparing hydrogen peroxide through hydrazine hydrate oxidation assisted self-power supply. The device comprises an electrochemical reactor, a circulating feeding device and a gas conveying device, the electrochemical reactor comprises a gas diffusion chamber, a cathode, a cathode chamber, a proton exchange membrane, an anode chamber and an anode which are arranged in sequence, and the cathode is a gas diffusion electrode attached with a NiSe2 catalyst layer; the anode is a foam nickel electrode of electro-deposited Ru / Co (OH) 2; the cathode and the anode are connected through a lead; the circulating feeding device comprises a cathode circulating buffer tank, an anode circulating buffer tank and conveying equipment; the gas conveying device comprises an oxygen steel cylinder used for conveying oxygen. According to the invention, hydrogen peroxide electrochemical synthesis and hydrazine hydrate oxidation reaction are coupled, the system can be converted from traditional external power supply to a self-powered system, power input is not needed, and hydrogen peroxide production with maximum efficiency is realized.

The invention discloses a method and a device for predicting a non-deposition condition of sand-carrying migration of a tubular column. The method comprises the following steps: within preset calculation physical time, performing numerical simulation on a flow field in a tubular column under a single independent variable working condition by utilizing a pre-established sand migration simulation model, and monitoring sand mass flow at an inlet and an outlet of the tubular column to obtain simulation and monitoring results; based on the mass flow of the sand at the inlet and outlet of the tubular column in the simulation and monitoring results, obtaining the sand mass at the inlet and outlet of the tubular column; determining the discharge rate of the sand grains according to the mass of the sand grains at the inlet and the outlet of the tubular column, and determining the minimum sand carrying flow under the single independent variable working condition by combining a preset flow rule; and fitting the minimum sand carrying flow and the single independent variable to obtain a fitting relationship, and predicting a sand migration non-deposition condition under a given independent variable condition by utilizing the fitting relationship. The migration condition of sand grains in a pipe column can be accurately simulated, so that the migration non-deposition condition of the sand grains can be more scientifically and accurately determined, and smooth discharge of the sand grains is ensured.

Provided is a method of efficiently and stably producing α-form crystal of reduced glutathione superior in both quality and productivity, and a preservation method thereof. The present invention relates to a production method and a preservation method of an aqueous solution or α-form crystal of reduced glutathion. According to the present invention, development of β-form crystal and / or transition to β-form crystal of reduced glutathione are suppressed by the coexistence of at least one kind of compound selected from the group consisting of aliphatic amino acid, sulfur-containing amino acid, aromatic amino acid, an analogous compound and dipeptide, as a habit modifier, during production and preservation of an aqueous solution or α-form crystal of reduced glutathione, and α-form crystal of reduced glutathione can be obtained stably.

The invention discloses a control method and device of a three-dimensional motion platform control system, and relates to the field of motion control of automation equipment. The method comprises the following steps: acquiring residual planning time corresponding to each first control axis in a three-dimensional motion platform control system and corresponding motion time when a Z axis descends to a first required position; sending a descending control instruction to the Z axis according to the motion time corresponding to the Z axis and the residual planning time corresponding to the first control axis, and obtaining the residual planning time corresponding to the Z axis and vacuum establishment time; controlling a vacuum electromagnetic valve to act according to the residual planning time corresponding to the Z axis and the vacuum establishment time, and acquiring a vacuum signal corresponding to the vacuum electromagnetic valve; and when the vacuum signal meets the preset value, a lifting control instruction is sent to the Z axis, and after the Z axis moves to the target position, all the first control axes are controlled to complete the target action. The problem that action efficiency and safety cannot be considered at the same time is effectively solved, and efficient and high-safety picking and mounting actions are perfectly achieved.

The utility model relates to feed processing technical field discloses a kind of feed granule forming integrated device, including workbench, the top right side of workbench is fixedly connected with extrusion tank, the right side bottom of extrusion tank is communicated with injection tube, the middle part of injection tube is fixedly installed with electromagnetic valve, the right side front and back end of workbench is fixedly connected with hydraulic ram, the top end of multiple hydraulic ram is fixedly connected with X-shaped connecting rod, the bottom of X-shaped connecting rod is fixedly connected with pressing plate, the bottom of pressing plate is equidistantly fixedly connected with multiple force guide rods. In the utility model, pressing piston is driven by hydraulic ram to extrude feed, so that it is extruded into strip shape from the extrusion hole at the bottom of extrusion tank, and then cut by granule cutting mechanism, the effect of high-efficiency and stable production of feed granule is realized, different specifications of granule can be produced as needed, manual intervention is reduced, production efficiency is improved, and diversified production needs are met.

The invention relates to the technical field of ammonia synthesis equipment, in particular to ammonia synthesis equipment and an ammonia synthesis method. The ammonia synthesis equipment comprises a nitrogen supply assembly, a green hydrogen supply assembly, a first mixing assembly and a reaction bin, the nitrogen supply assembly is configured to be used for conveying nitrogen to the first mixing assembly in a first spiral conveying mode; the green hydrogen supply assembly is configured to be used for conveying green hydrogen to the first mixing assembly in a second spiral conveying mode, and the green hydrogen is used for representing hydrogen prepared based on renewable energy sources; the first mixing assembly is communicated with the reaction bin and is used for mixing nitrogen and hydrogen to form mixed gas flow, and the mixed gas flow is conveyed into the bin and is subjected to synthesis ammonia reaction in a low-pressure and low-temperature state. According to the invention, preparation of green hydrogen and synthesis of ammonia are coupled, so that efficient and stable production of synthesis ammonia is effectively ensured, and the production efficiency of synthesis ammonia is improved.

This invention relates to a hot-rolled wire rod for 2300MPa grade stranded wire and its manufacturing method. The method involves rolling high-Si, high-carbon components containing trace amounts of Nb into wire rods, followed by online molten salt isothermal toughening treatment. This process involves a pre-treatment molten salt stage followed by rapid cooling, transitioning the wire rod from an austenitic state to a sorbite phase, forming a structure dominated by sorbite. A subsequent molten salt stage further reduces the molten salt temperature and circulation rate, promoting the continued transformation of untransformed residual austenite into sorbite, followed by isothermal tempering and partial melting of sorbite lamellars. Finally, the wire rod undergoes slow cooling on a roller conveyor, resulting in a hot-rolled wire rod with a microstructure comprising tempered sorbite, ferrite, and melted sorbite. This achieves a tensile strength of 1530~1580MPa, a reduction of area of ​​35%~40%, and a mechanical property difference of ≤48MPa between different coils. This method balances material cost and production efficiency, eliminating the need for offline heat treatment and promoting efficient and stable production of ultra-high strength stranded wire.

This invention proposes a fully electro-melting vertical kiln basalt fiber melting channel, including an electro-melting control system and a furnace body. The furnace body, from one end to the other, sequentially includes a melting zone, a clarification and homogenization zone, and a working zone. The bottom surfaces of the melting zone and the clarification and homogenization zone are at the same height, while the bottom surface of the working zone is located above the bottom surface of the clarification and homogenization zone. The volume of the working zone is smaller than that of the clarification and homogenization zone, which in turn is smaller than that of the melting zone. A spinneret for fiber drawing is provided on the bottom surface of the working zone. Electrodes are respectively installed in the melting zone, the clarification and homogenization zone, and the working zone, and each electrode in each zone is connected to one of the electro-melting control systems. This invention can reduce production energy consumption, improve production efficiency, enhance the processing effect of basalt melt, and ensure product quality.

The invention discloses a bangia fusco-purpurea polysaccharide degrading enzyme gene, a degrading enzyme as well as a preparation method and application of the degrading enzyme, and belongs to the technical field of gene engineering and enzyme engineering. The invention provides a bangia fusco-purpurea polysaccharide degrading enzyme Gal43B gene, the nucleotide sequence of the bangia fusco-purpurea polysaccharide degrading enzyme Gal43B gene is as shown in SEQ ID NO.1, the bangia fusco-purpurea polysaccharide degrading enzyme Gal43B gene is a key enzyme gene gal43b of a novel bangia fusco-purpurea polysaccharide glycosidic bond obtained by cloning from Priesteria megaterium JMU13, the size is 849bp, and 282 amino acids are encoded. The invention provides a bangia fusco-purpurea polysaccharide degrading enzyme Gal43B, and the amino acid sequence of the bangia fusco-purpurea polysaccharide degrading enzyme Gal43B is shown as SEQ ID NO.2. The bangia fusco-purpurea polysaccharide degrading enzyme Gal43B has relatively high enzymatic activity, shows good stability in relatively wide temperature and pH ranges, and has a good application prospect and industrial value.

The invention discloses a smelting method of a high-titanium nickel-based alloy, which comprises AOD furnace smelting and VOD furnace smelting, in the decarburization stage 1, the vacuum degree is 190-210 mbar, the oxygen blowing amount is 900-1100 m < 3 >, the oxygen supply intensity is 28-32 m < 3 > / h / t, the oxygen lance position is 1500-1700 mm, and the steel ladle bottom argon blowing supply intensity is 3-5 Nl / min / t; in the second decarburization stage, the vacuum degree is 90-110 mbar, the oxygen blowing amount is 350-450 m < 3 >, the oxygen supply intensity is 24-26 m < 3 > / h / t, the oxygen lance position is 1200-1400 mm, and the steel ladle bottom argon blowing supply intensity is 5-7 Nl / min / t; in the third decarburization period, the vacuum degree is 10-30 mbar, the oxygen blowing amount is 250-350 m < 3 >, the oxygen supply intensity is 18-22 m < 3 > / h / t, the oxygen lance position is 900-1100 mm, and the steel ladle bottom argon blowing supply intensity is 7-9 Nl / min / t; in the boiling period, the vacuum degree is smaller than or equal to 1 mbar, the steel ladle bottom blowing argon supply intensity is 13-17 Nl / min / t, and the boiling time is 55-65 min; and in the reduction period, alloy auxiliary materials are added, and the reduction time is 25-35 min. According to the method, the contents of Al, Ti and N in the high-titanium nickel-based alloy are accurately controlled as follows: 0.10-0.20% of Al, 0.60-0.70% of Ti and less than or equal to 70ppm of N, so that efficient and stable production of the high-titanium nickel-based alloy is realized.

A kind of high-temperature evaporation equipment for manufacturing nanometer metal powder, including water-cooled barrel shell, water-cooled hemispherical shell, evaporation chamber, cooling water inlet A, cooling water cavity A, cooling water inlet C, plasma cathode column, cooling water inlet D, hemispherical shell cooling water passage, cooling water inlet B, crucible wall petal, cooling water outlet A, plasma anode terminal stud, crucible bottom, cooling water outlet B, hemispherical shell cooling water passage, barrel shell cooling water passage;Its characterized in that: the upper portion of hemispherical shell cooling water passage is equipped with cooling water cavity A;Due to the effect that the hemispherical shell cooling water flow channel of high-temperature evaporation equipment is equipped with cooling water cavity A, the gathered water can be effectively and evenly distributed to hemispherical shell cooling water flow channel and barrel shell cooling water flow channel, so that the cooling efficiency of hemispherical shell cooling water flow channel is high, which is conducive to the evaporation of metal vapor, thereby promoting the production quality of nanometer metal powder;The service life of high-temperature evaporation equipment is improved.

This invention relates to a hot-rolled wire rod for 2330MPa grade stranded wire and its manufacturing method. The method involves rolling high-carbon, high-silicon Cr-V wire rods into wire rods, followed by online molten salt isothermal toughening treatment. This process involves a pre-treatment molten salt stage followed by rapid cooling, transitioning the wire rod from an austenitic state to a sorbite phase, forming a predominantly sorbite microstructure. A subsequent molten salt stage further increases the molten salt temperature and reduces the molten salt circulation rate, promoting the continued transformation of untransformed residual austenite into sorbite and isothermal tempering, while also promoting partial melting of sorbite lamellars. Finally, the wire rod undergoes slow cooling on a roller conveyor, resulting in a hot-rolled wire rod with a microstructure consisting of tempered sorbite, ferrite, and melted sorbite. This method controls material costs, achieving a tensile strength of 1558~1608MPa and a reduction of area of ​​34%~39%, while balancing production efficiency and energy consumption. It eliminates the need for offline heat treatment, enabling efficient and stable production of ultra-high strength stranded wire.

The invention relates to the technical field of non-ferrous metal purification, and discloses a device and method for efficiently preparing high-purity metal through annular horizontal zone smelting, the device comprises a sealing box body, an arc quartz boat, a quartz boat supporting and moving device, a coil driving device and a heating coil, and the sealing box body is provided with a sealing door, an air inlet and an extraction opening; the plurality of arc quartz boats are connected in series end to end to form an annular quartz boat with a notch; the quartz boat supporting and moving device can support the annular quartz boat and drive the annular quartz boat to rotate clockwise or anticlockwise at a constant speed; and the coil driving device is connected with the heating coil and can drive the heating coil to advance from the notch to sleeve the annular quartz boat or retreat to leave the annular quartz boat. According to the method, the zone melting yield is increased, and efficient and stable production of high-purity metal of 6N and above 6N can be achieved efficiently.

The invention discloses a carbon ceramic closing resistor for a high-voltage circuit breaker and a preparation method of the carbon ceramic closing resistor, and belongs to the technical field of power elements. The problems of poor resistor compactness, non-uniform performance, insufficient mechanical property and the like caused by high pressing and sintering difficulty, process instability and high and non-uniform resistor porosity of the carbon ceramic resistor are solved. The preparation process of the resistor comprises the following steps: by taking aluminum oxide and quartz as ceramic phases, presintered kaolin, mullite and potassium feldspar as clay phases and carbon black or graphite as conductive phases, pre-coating the ceramic phases with the clay phases, carrying out vacuum calcination on pre-coated powder, mixing the pre-coated powder with the secondarily added clay phases and the conductive phases, carrying out spray granulation, pressing a green body, sintering and spraying. And obtaining the carbon ceramic closing resistor. According to the invention, the kaolin is pre-sintered, and the clay phase is pre-coated with the ceramic phase, so that the subsequent blank pressing uniformity and density are increased, the structural defects of the carbon ceramic resistor are reduced, and in combination with the spark plasma sintering technology, the batch rapid production of the resistor can be realized.

The invention relates to the field of food processing, and discloses a drying and disinfecting device for food processing, which comprises a mounting box internally connected with a plurality of belt conveyors; the first processing mechanism is arranged between two of the belt conveyors, and a second processing mechanism located between the belt conveyors is arranged on one side of the first processing mechanism; the multiple placing mechanisms are arranged, and the multiple placing mechanisms are matched with the belt conveyor, the placing mechanisms and the second processing mechanism; the recycling mechanism is arranged between the processing mechanism II and the placing mechanism, and the recycling mechanism is connected with the processing mechanism II and the placing mechanism through a pipeline. Through combination of high-temperature disinfection and drying and hollow low-temperature drying, most of nutrient substances are stored, and meanwhile, drying and dewatering work of vegetables and fruits is rapidly carried out; the whole drying efficiency is improved, different disinfection operations are carried out while drying is carried out, procedures are reduced, the probability of possible pollution is avoided, the yield of finished products is guaranteed, and efficient and stable production is achieved.

The utility model provides a preheater air pipe with a good heat insulation effect, and relates to the technical field of preheater air pipes, the preheater air pipe comprises a pipe body, a heat insulation layer and a castable layer, the heat insulation layer is arranged on the inner wall of the pipe body, and the castable layer is arranged on the inner wall of the heat insulation layer; the heat insulation layer comprises a plurality of nanometer heat insulation plates; the heat insulation layer is formed by splicing a plurality of nanometer heat insulation plates, and the nanometer heat insulation plates are made of nanometer heat insulation materials and have excellent heat preservation and heat insulation performance, so that the internal temperature of the air pipe is constant, the heat dissipation loss of the air pipe can be effectively reduced, the preheating temperature of raw materials conveyed to the rotary kiln from a preheater is increased, heating is more uniform, and water evaporation is more thorough; energy consumption of the rotary kiln is reduced, and production is stable and efficient; the nanometer heat insulation plates are clamped with the pipe body, the castable layer and the adjacent nanometer heat insulation plates, so that the nanometer heat insulation plates are stable and reliable in installation and not prone to displacement and separation, and the whole air pipe of the preheater is tightly and firmly connected.

The invention relates to the technical field of rail transit infrastructure, in particular to a mixed casting nylon sleeper and a preparation process thereof, the mixed casting nylon sleeper is formed by mixed casting of a main material and an auxiliary material according to the mass percentage, the auxiliary materials comprise sodium hydroxide, toluene diisocynate, glass fiber powder, glass beads, peregal, polyethylene glycol, a PVT liquid flexibilizer, sodium carbonate, silicone grease or silicone oil, toner, molybdenum disulfide and newly added nano titanium dioxide; by adopting the glass fiber powder and other reinforcing materials, the high tensile strength and impact resistance of the product are ensured, and the service life of the track is prolonged. Compared with the prior art, the railway ballast pulverization phenomenon is reduced, nano titanium dioxide is introduced and is matched with ultraviolet curing treatment, surface cleanness can be maintained, pollutant attachment is reduced, the maintenance difficulty is reduced, compared with a traditional concrete sleeper, the weight of the product is reduced by 50%-70%, and the installation and transportation cost and the labor intensity are greatly reduced.