46 results about "Continuous production" patented technology

A gas generating process, which is for the continuous production of energy and hydrogen for rocket and other propulsion and is also for the continuous production of hydrogen, utilizes the reaction of metallic materials, particularly aluminum, with organic materials, particularly hydrocarbons provided as jet fuel, and with water or an oxidizer which is predominantly water. In comparison with related reactions, the reaction produces hot gases containing more hydrogen and the products have a lower temperature for the same specific impulse. The process incorporates organic liquids with metallic powders to produce desirable, lower molecular weight exhaust gas products; and the increased hydrogen is desirable for use with a fuel cell and in connection with propulsion of a super-cavitating underwater device. The process is advantageous in that a metal, in powdered form, and a hydrocarbon liquid may be provided together as a slurry or gel for effective metering. The metallic material may also be provided with the organic material in the form of a binder as used in solid propellants, and the organic material and water may be provided together in the form of a water containing liquid monopropellant. The hydrogen containing product gases from the reaction may be further reacted with suitable oxidizers for production of additional energy or steam. The reaction is particularly useful for underwater vehicles where ambient water is available and the reaction products may be used for propulsion.

A fabrication process produces markers for a magnetomechanical electronic article surveillance system. The marker includes a magnetomechanical element comprising one or more resonator strips of magnetostrictive amorphous metal alloy; a housing having a cavity sized and shaped to accommodate the resonator strips for free mechanical vibration therewithin; and a bias magnet to magnetically bias the magnetomechanical element. The process employs adaptive control of the cut length of the resonator strips, correction of the length being based on the deviation of the actual marker resonant frequency from a preselected, target marker frequency. Use of adaptive, feedback control advantageously results in a much tighter distribution of actual resonant frequencies. Also provided is a web-fed press for continuously producing such markers with adaptive control of the resonator strip length.

The invention discloses a pressure filling type cable former. The pressure filling type cable former comprises a cable core wire-placing frame, a wire-combining die, a shaping die, a filling apparatus, a cooling apparatus, a wrapping machine, a traction machine and a wire taking-up machine, wherein guiding rollers and a wire-dividing tray are arranged between the cable core wire-placing frame used for placing the cable core and the wire inlet of the wire-combining die; the wire outlet of the wire-combining die is corresponding to the wire inlet of the shaping die; the filling material inlet of the shaping die is connected with the material outlet of the filling apparatus; the wire outlet of the shaping die is corresponding to the wire inlet of the wrapping machine, and the cooling apparatus is arranged between the wire outlet of the shaping die and the wire inlet of the wrapping machine; the wire outlet of the wrapping machine is corresponding to the inlet of the traction machine; and the outlet of the traction machine is corresponding to the inlet of the wire taking-up machine. The invention also discloses a pressure filling type cable forming process. By replacing the existing twisting-in type filling process, the produced finished cable is more circular and tidier in the cable core, the structure is more stable, and the purpose of continuous production without machine halt is fulfilled.

The invention relates to a method for preparing methyl formate and coproducing dimethyl ether. The method comprises the steps: enabling raw materials, which contain formaldehyde and methanol, to enter a first reaction zone and be in contact with a catalyst A, carrying out separating so as to obtain a component I, enabling the component I to enter a second reaction zone and be in contact with a catalyst B, and then, carrying out separating so as to obtain methyl formate which serves as a product, dimethyl ether and a component II; taking at least 1% of the dimethyl ether as a product, and returning the rest dimethyl ether to the first reaction zone as circulating dimethyl ether; and returning the component II to the second reaction zone. In the raw materials, the ratio of the formaldehyde to the methanol (by mole numbers of carbon atoms contained by each ingredient) is 1: (0.05 to 4); the WHSV of the formaldehyde in the raw materials is 0.01/h to 15.0/h; the interior temperature of the first reaction zone is 50 DEG C to 100 DEG C; the interior temperature of the second reaction zone is 50 DEG C to 200 DEG C; the pressure is 0.1 to 10Mpa; and each ingredient is of a gas phase and/or a liquid phase independently. According to the method, the life of a catalyst is long, the reaction conditions are mild, the utilization ratio of the raw materials is high, and continuous production can be achieved, so that the method has large-scale industrialized application potential.

The invention provides an electron-grade hydrochloric acid production method. The electron-grade hydrochloric acid production method sequentially comprises the following steps that 1, synthesized hydrogen chloride gas enters an adsorption tower so as to remove free chlorine; 2, a reagent-grade hydrochloric acid solvent is adopted to enter a washing tower from the inlet in the upper part of the washing tower to wash the adsorbed hydrogen chloride gas so that soluble impurities can be removed; 3, the washed hydrogen chloride gas passes through first condensation and secondary condensation and enters a demister so as to remove mist, so that high-purity hydrogen chloride gas is obtained; 4, high-purity hydrogen chloride is absorbed by a first and a secondary falling film absorber and a tail gas absorbing tower, and then passes through a hyrochloric acid cooler, so that a finished product is obtained; 5, absorbant water adopts hyperpure water; and 6, the finished product obtained in the step 4 enters a finished product storage tank, and is ultrafiltered to remove particulate impurities, so that electronic hydrochloric acid is obtained. The electronic hydrochloric acid production methodhas the characteristics of simple technology, continuous production, good stability,simple equipment, and the like.

The invention discloses a methylal purifying method. The method comprises the following steps: adding water with the weight 0.2-3 times the weight of methylal into methylal with the mass concentration being smaller than 95%, fully and uniformly stirring, standing for 20-40min for layering, adding a drying agent to the obtained upper layer in order to dry the upper layer, stirring for 5-15min, filtering out the drying agent to obtain methylal with the mass concentration being greater than 99.5%, and dehydrating the water-containing drying agent to recycle the drying agent, wherein the absorbed water weight of the drying agent is 1-12 times the water weight of methylal. Water is added to methylal as an extractant in order to realize extraction, so the cost is low; and the purifying method also has the advantages of simplicity, mild conditions, large purifying capacity, industrial continuous production benefiting, stable and reliable mass concentration and no other impurities. Methylal is purified through rectification by using a high pressure rectification system, so the method has the advantages of low mass requirements of a raw material, high purification yield, less energy, industrial continuous production benefiting, no emission of harmful substances, and environmental protection benefiting.

The invention relates to pre-oxidation equipment of a PAN (polyacrylonitrile) precursor end. The pre-oxidation equipment comprises a hot air circulating oven and a tow tension frame, wherein the interior of the hot air circulating ovenis divided into a pre-oxidation cavity, an air return cavity and an air inlet cavity; air flow channels which are communicated are formed by the pre-oxidation cavity, the air return cavity and the air inlet cavity, a fan and a heater are arranged in the air inlet cavity, an entrance is arranged on the side surface of the hot air circulatingoven, an air-tight dooris arranged at the entrance, and the tow tension frame extending into the hot air circulating oven from the entrance is located in the pre-oxidation cavity; a tension adjuster for clamping tows is arranged on the tow tension frame, the tows penetrate through the tow tension frame, and free ends of the tows are fixed on the tow tension frame. The invention further relates to an end connection method. High-quality end pre-oxidation can be realized by the pre-oxidation equipment, and a foundation is laid for follow-up high-quality air connection of two tows; with adoption of the end connection method, the tows can smoothly pass pre-oxidation and carbonization processes, and continuous production of large-tow carbon fibers is realized.

The invention discloses a manufacturing method of a bamboo-based heterochromous laminated decorative plate. The manufacturing method comprises the following steps of (1) changing color of a bamboo bundle; (2) drying the dyed bamboo bundle; (3) processing a single plate of the bamboo bundle; (4) gumming and drying the single plate of the bamboo bundle; (5) assembling: laminating and assembling the single plate of the bamboo bundle which is gummed and dried, and obtaining a plate blank by adopting hot pressing or cold pressing after assembly, wherein the plate blank at least contains two different colors of the single plate of the bamboo bundle; and (6) processing the decorative plate. Compared with a traditional bamboo-based decorative material, the bamboo-based heterochromous laminated decorative plate obtained by adopting the manufacturing method is laminated and hot-pressed into a square by adopting the dyed bamboo bundle which is woven, so that continuous production of materials is conveniently realized, and compared with existing reconstituted bamboo materials, the material density uniformity is obviously increased. In addition, through color change, bamboo is colorful, the decorative effect of bamboo products can be increased, and the added value of the products is increased.

The invention belongs to ammunition manufacturing technology, that is, a process for realizing automatic production of bullet chains, which relates to a multi-station progressive die, which is used in conjunction with a pneumatic punching machine, an automatic feeding mechanism, and a material delivery detection device, so that the bullet chains can be automatically continuous. Production technology. It is characterized by the design, dimension calculation and adjustment of relevant structures of the multi-station progressive die. The multi-station progressive die is an advanced and efficient stamping die in the stamping die, which provides a reliable guarantee for the automatic production of the elastic chain. The processing cycle is greatly shortened. Due to the cancellation of the intermediate annealing process, energy is saved, the processing cost is more than doubled, and the product consistency is good. At the same time, the safety hazard of punching and shearing equipment is solved from the source. After the improvement of the mold and process, the manufacturing technology of the bullet chain has reached the international advanced level.

The invention discloses a method for crimping a high-pressure cross-linking three-layer co-extrusion continuous produced disc-exchanging conductor. The method specifically comprises the following steps: forming head and tail connecting sections with the outer diameter being less than the compressing outer diameter of a conductor after removing layers from a head end of one coil of conductor and a tail end of the other coil of conductor; preparing an iron pipe with the outer diameter being approximate to the compressing outer diameter of the conductor and with the inner diameter slightly being more than the outer diameter of the connecting sections, according to the compressing outer diameter of the conductor; inserting the head connecting section of one coil of conductor and the tail connecting section of the other coil of conductor into inner holes at two ends of a steel pipe; placing into a cavity of a 10-ton hydraulic press and crimping the iron pipe; and crimping the surface of the iron pipe for ten times, thereby causing the conductor therein to be in close contact with an inner wall of the iron pipe. According to the method provided by the invention, the cold pressing welding is applied to the disc-exchanging and connecting of the high-pressure cross-linking three-layer co-extrusion conductor; only an iron crimping pipe and a manual hydraulic mould which are conveniently taken are selected and used; the iron crimping pipe is connected with two ends; compared with a resistance butt-welding connecting method, the method has the advantages that the operation is simple and the success rate is higher; and the once investment in equipment according to the method is reduced by above 30% of the once investment in equipment according to a resistance butt-welding scheme.

The invention relates to a vacuum belt type dryer material dust continuous discharge system. The vacuum belt type dryer material dust continuous discharge system comprises a material buffer tank, a vacuum material feeder, a material discharge pipe, an air inlet valve and a material feeding valve, the material buffer tank is connected with a vacuum machine set through a vacuum pipeline, the passageof the vacuum pipeline is internally provided with an emptying valve and a filter, the filter is located between the emptying valve and the material buffer tank, the emptying valve is opened to makethe material buffer tank be in a normal pressure state, then the air inlet valve and the material feeding valve are opened, materials inside the material buffer tank are collected through the vacuum material feeder, after the materials are all collected, the emptying valve, the air inlet valve and the material feeding valve are closed, and the vacuum degree of the material buffer tank is restoredthrough the vacuum machine set. The vacuum belt type dryer material dust continuous discharge system has the beneficial effects that in the process of switching the emptying valve and a balancing valve in each cycle, because of continuous production of pressure differential air flow, converse blowing sweeping is performed on the filter, the filter is made to maintain the filtering effect at each cycle stage, the drying recovery rate of the materials is greatly increased, and the continuous running time of the vacuum machine set is guaranteed.

The invention discloses a continuous decontamination process for organic chlorination reaction byproduct hydrochloric acid. According to the process, two stages of adsorption resin towers are seriallyconnected to carry out adsorption decontamination, another adsorption resin tower is used for carrying out decomposition and regeneration, and continuous decontamination operation can be implementedfor byproduct hydrochloric acid. As a whole, the process has the advantages that the design is reasonable, three adsorption resin towers are alternated to carry out continuous production, two adsorption resin towers are serially connected to carry out adsorption, the another one is used for carrying out decomposition and regeneration later, a byproduct hydrochloric acid decontamination effect canbe effectively ensured, the byproduct hydrochloric acid decontamination efficiency can be greatly improved, a raw material utilization rate can be increased, waste emission can be reduced, the production cost can be reduced, and very high use values can be made.

The invention relates to an extraction device, in particular to a traditional Chinese medicine microwave extraction device, and aims to provide the traditional Chinese medicine microwave extraction device which comprises a conveying motor, a helical blade, an extraction tank, a stirring paddle, a microwave generator, a baffle, a left right cylinder, a right cylinder and the like. The helical blade is arranged inside a feed bin; the helical blade is connected with the conveying motor through a hole formed in the feed bin; the extraction tank is formed below the feed bin; the microwave generator is arranged on the right side of the extraction tank; the baffle extends into the extraction tank through an opening formed in the right wall of the extraction tank; a rotating motor and the stirring paddle are arranged between the upper and lower cylinders and the extraction tank; the stirring paddle is arranged right above an opening formed in the top of the extraction tank; the stirring paddle extends into the extraction tank through the opening formed in the top of the extraction tank. The provided traditional Chinese medicine microwave extraction device is tight in procedure connection and realizes continuous production.

The invention discloses a batch feeding and discharging system and a batch feeding and discharging method. The system comprises a feeding device and a discharging device, wherein the feeding device comprises a multi-layer carrier holder I, and also comprises a motor I, and the motor I can drive a lead screw mechanism I to drive the carrier holder I of the feeding device to move up and down; and the discharging device also comprises a multi-layer carrier holder II, and also comprises a motor II which not only can drive a lead screw mechanism II to drive the carrier holder II of the discharging device to move up and down, but also can drive a gear and rack mechanism to drive the carrier holder II of the discharging device to make horizontal movement, and the layer number of the holder II is the same as that of the holder I. Through the batch feeding and discharging system disclosed by the invention, the continuous production of a multi-chamber vacuum atmosphere furnace is realized, and the situation that the continuous vacuuming is needed in the charging and taking process in the traditional vacuum atmosphere furnace can be avoided, so that the production efficiency is greatly improved.

The invention discloses a method for preparing a feeding nozzle for a continuous high-purity alumina melting furnace. The continuous high-purity alumina melting furnace consists of a cooling water jacket furnace shell 1, a carbon fiber heat insulation material 2, a ceramic inner container seat 3, graphite heating elements 4, a ceramic inner container 5, the feeding nozzle 6, a furnace body upper cover 7, an upper cooling cavity 8, a hearth 9, a lower cooling cavity 10 and a furnace body lower cover 11, wherein a cooling water jacket is adopted in the cooling water jacket furnace shell; and the feeding nozzle for the continuous high-purity alumina melting furnace is made of a composite material prepared from reactive sintered aluminum nitride and hafnium boride and used at the temperature of between 1,600 and 2,200 DEG C in the atmosphere of nitrogen. The feeding nozzle for the continuous high-purity alumina melting furnace have the advantages of uniform microstructure, high strength, high overall reliability, high oxidation resistance, high-purity alumina pollution prevention, capability of being used for long time at the temperature of 2,200 DEG C, continuous production, high production efficiency and the like.

The invention relates to process equipment for manufacturing an aluminum alloy cable insulator and a sheath. The process equipment comprises an inner mold, a middle mold and an outer mold which are joggled in sequence, wherein the outer mold is provided with a sheath shunt, a pressing mold cover is arranged at the tail end of the outer mold, a first annular passage for injecting an insulating material is formed between the outer wall of the inner mold and the inner wall of the middle mold, a second annular passage for injecting a sheath material is formed between the outer wall of the middle mold and the inner wall of the outer mold, the sheath shunt is provided with an injection hole communicated with the second annular passage, and a conductor enters from the inner cavity of the inner mold, is matched with the insulating material to form an insulating layer when advancing to the inner cavity of the middle mold and is matched with the sheath material to form a sheath layer when advancing to the inner cavity of the outer mold. According to the technical solution, the conductor is subjected to extrusion when the insulating layer is formed and tube extrusion when the sheath layer is formed, thus realizing single extrusion of the high-temperature sheath material and the low-temperature insulating material; moreover, the insulator and the sheath have smooth surfaces and good concentricity, and the process equipment can realize high-speed continuous production.

A system and method for the conversion of a levulinate ester to maleic anhydride using a reducible oxide catalyst. Levulinic acid oxidation delivers maleic anhydride in good yields without viscosity and stability issues that make continuous production problematic. Due to the fact that levulinate esters are more amenable to processing, the conversion of levulinate esters to maleic anhydride represents an appropriate for the commercial production of maleic anhydride from renewable resources.

The invention discloses a core pulling die with an automatic cleaning function. The core pulling die comprises a first central spindle, a second central spindle and a transmission assembly, wherein the second central spindle and the first central spindle are arranged in parallel along the same direction; a distance between the peripheral surface of the second central spindle and the peripheral surface of the first central spindle is less than 1 mm; the transmission assembly is connected with the first central spindle and the second central spindle respectively in a rotatable manner; and the transmission assembly can drive the first central spindle and the second central spindle to rotate towards the same direction. According to the core pulling die with the automatic cleaning function, as the distance between the peripheral surface of the second central spindle and the peripheral surface of the first central spindle is extremely short, mutual friction force is generated between the first central spindle and the second central spindle when the first central spindle and the second central spindle are attached with raw materials, so as to clear away the attached materials on the respective surfaces; and furthermore, the first central spindle and the second central spindle rotate 360 degrees, the whole surfaces of the first central spindle and the second central spindle can be completely cleaned. Compared with the prior art, the core pulling die has the advantage that the problem that a core pulling shaft is cleaned only after the die is stopped is solved, so that continuous production is realized, and the production efficiency is improved.

The invention discloses an automatic corrugated pipe sensor of an instrument. The sensor comprises a hollow cylindrical housing. An inlet connecting pipe is arranged at the head of the housing; and anoutlet connecting pipe is arranged at the tail of the housing. A corrugated pipe is arranged inside the housing; a sealed plate surface is arranged at the head of the corrugated pipe; the tail of thecorrugated pipe is communicated with the outlet connecting pipe; and the corrugated pipe is filled with silicone oil. The housing and the corrugated pipe are made of corrosion-resistant resistant stainless steel or HC alloy materials. Because of various advantages of the sensor, technical problems of high temperature, high pressure, flammable and combustible properties for oil refining and chemical engineering in terms of instrument measurement of the continuous production device are solved. The principle of liquid incompressibility is employed; the ultra-thin corrugated pipe is only 0.12mm and is made of the corrosion-resistant stainless steel or HC alloy material; the superficial area of the large corrugated pipe with the large superficial area is ten times as large as the superficial area of the common transmitter film; the contractility is high and the strain is low; and the isolating liquid has the stable chemical and physical characteristics.

The invention relates to the technical field of molecular distillation, in particular to surrounding centrifugal sucrose-6-ester continuous production equipment and a production method. The production equipment comprises a tank body, a main transmission chamber, a stirring chamber, a distillation chamber, an auxiliary transmission chamber and a driving motor, wherein the tank body is formed by connecting the main tank and the tank cover, and the tank cover can be detached during installation or detachment so that installation and maintenance can be facilitated. A driving motor is mounted on the tank cover, and a vacuum opening is further formed in the tank cover; three drainage pipes are uniformly distributed on the circumferential surface of the main tank; an upper partition plate, a middle partition plate and a lower partition plate are sequentially mounted on the inner wall of the main tank from top to bottom; The inner part of the whole main tank is divided into four parts, namely a main transmission chamber, a stirring chamber, a distillation chamber and an auxiliary transmission chamber by the three partition plates; according to the invention, molecular distillation equipment is modified, so that all reaction processes for preparing sucrose-6-ester can be completed in the molecular distillation equipment at one time, and the reaction processes and upstream and downstream connection time are shortened; therefore, the production efficiency of the sucrose-6-ester is greatly improved.

The invention relates to the field of copper-clad steel production, and discloses a device and method capable of accurately controlling molten copper to clad copper-clad steel, the device comprises a graphite smelting furnace and a corrugated pipe, the corrugated pipe extends into the graphite smelting furnace, the upper end of the corrugated pipe is connected with the graphite smelting furnace, and the lower end of the corrugated pipe is connected with a graphite rod; the graphite rod penetrates through the corrugated pipe and extends into the bottom of the graphite smelting furnace; a copper liquid outlet is formed in the bottom of the graphite smelting furnace; the graphite rod is connected with one end of the connecting rod mechanism, and the other end of the connecting rod mechanism is connected with the output end of the motor. According to the invention, the problem that the copper-clad steel is easy to accumulate in continuous production, so that the production cannot be normally carried out is effectively solved.