21results about How to "High product yield" patented technology

The utility model discloses a kind of N, N-diisopropyl ethylamine neutralization distillation device, it is related to neutralization distillation technical field, the N, N-diisopropyl ethylamine neutralization distillation device, including neutralization reaction kettle, stirring mechanism and lye distribution mechanism are equipped in neutralization reaction kettle, lye distribution mechanism is installed in the upper portion of neutralization reaction kettle, it is arranged horizontally annularly, the lower end of lye distribution mechanism is fixedly connected with the upper end of stirring mechanism, and lye distribution mechanism is rotated simultaneously when driving stirring mechanism rotation, it is even sprayed into reaction liquid phase area in circumferential direction multiple points to alkali liquor, the efficient dispersion and mixing of alkali liquor are realized.The utility model is rotated by the synergistic effect of multiple point injection lye distribution mechanism and micro rectifier structure, realize the spatial uniform distribution and rapid mixing of alkali liquor in reaction system, effectively avoid local over-alkali, improve the uniformity, stability and product yield of neutralization reaction.

This invention discloses a method for preparing pharmaceutical-grade hydrogenated palm oil glyceride. The steps are as follows: stearic acid, palmitic acid, and glycerol are melted, a catalyst is added, vacuum is applied, and the mixture is heated to react; the temperature is lowered, pharmaceutical-grade activated clay is added, and the mixture is stirred; the material is transferred to a pressure vessel; the outlet of the pressure vessel is opened, and the mixture is filtered to obtain crude hydrogenated palm oil glyceride, which is then fed into the material storage tank of a three-stage molecular distillation apparatus; the process parameters of the three-stage molecular distillation apparatus are set at a temperature of 160℃~250℃ and a pressure ≤30Pa, and the crude hydrogenated palm oil glyceride is forced into the cavity of the three-stage molecular distillation apparatus through a vacuum feeder, the feed flow rate is controlled, and the collected heavy component, pure hydrogenated palm oil glyceride, is transported through a pipeline to a rotary drum condenser crystallizer and slicing machine to obtain pharmaceutical-grade hydrogenated palm oil glyceride. This invention is simple to operate, uses readily available raw materials, has a high production yield, is environmentally friendly and pollution-free, and produces a high-purity product that meets pharmaceutical requirements.

The utility model provides a kind of pyrolysis furnace with material uniform distribution, it is related to pyrolysis furnace technical field, including bottom plate, the top of bottom plate is provided pyrolysis furnace body, the top of pyrolysis furnace body is fixedly connected with multiple feed pipes, the top of bottom plate is fixedly installed with two slide rails, the outer surface wall between two slide rails is movably sleeved with slide plate, the top of slide plate is fixedly connected with two fixed frame, the outer surface wall between two fixed frame is fixedly connected with conveying pipe.In the utility model, through the interaction of each component of the device, the uniform distribution of materials in the pyrolysis furnace is realized, combined with the self-rotating mixing function of the pyrolysis furnace, the material mixing efficiency is significantly improved, the initial material accumulation problem is effectively overcome, and the heating process is uniform and efficient. This unloading mode not only improves the consistency of pyrolysis reaction and product yield, but also greatly reduces the coking risk caused by local overheating.

This invention relates to the field of automotive air conditioning manufacturing technology, and discloses an automotive air conditioning pipe crimping equipment, comprising a feeding device, a processing device, and a unloading device. The processing device includes end leveling, upsetting, radial extrusion, and deburring units, as well as a three-axis transfer claw. The unloading device integrates unloading and visual inspection units. The equipment achieves multi-process automatic flow of pipe fittings through the three-axis transfer claw, sequentially completing pipe end leveling, upsetting, radial extrusion forming, and deburring, ensuring processing coaxiality, avoiding pipe eccentricity and cracking, and improving pipe end forming accuracy and sealing performance. Simultaneously, online quality inspection through visual inspection during the unloading stage automatically identifies defective products. The entire machine integrates feeding, multi-process forming and finishing, online inspection, and automatic unloading, achieving a high degree of automation, reducing labor intensity, and improving production efficiency and product yield.

The application discloses a kind of integrated flow process of continuous high-frequency welding, it is related to high-frequency welding field.The equipment of the present application adopts integrated rack structure, effectively suppresses vibration, guarantees running stability;High-frequency welding equipment includes three welding stations and two discharging stations, discharging station is located in the middle of welding station, forms discharging and welding station interval arrangement, control mechanism, equipment main base.High-frequency welding equipment carries welding program storage function and automatic current control system, can store, retrieve multiple groups of welding process parameters, and according to workpiece type, welding position intelligent adaptation welding current.The present application solves the problems of low production efficiency, single equipment action form, high labor cost, poor flexibility of station control, complex multi-process switching, large equipment vibration, complex parameter debugging, weak welding energy adaptability and other problems of traditional equipment, with high production efficiency, stable operation, high positioning accuracy, simple operation, low labor and time cost, strong process versatility and other characteristics.

The present invention provides a method for producing hydrocarbons, comprising the steps of: (S1) heat-treating organic waste to produce a first mixed gas; (S2) dry reforming the first mixed gas in a first fixed bed reactor to generate a second mixed gas; (S3) separating the second mixed gas into a first material flow containing carbon dioxide and a second material flow containing hydrogen and carbon monoxide; (S4) enabling the first material flow separated in the step (S3) to flow into a second fixed bed reactor, and converting the first material flow into carbon monoxide through a reverse Boudala reaction; (S5) mixing the second material flow with the carbon monoxide converted in the step (S4) to prepare a third mixed gas; (S6) generating a synthesis gas from the third mixed gas by a water-gas shift reaction; and (S7) producing hydrocarbons from the synthesis gas by catalytic reaction.

The application relates to the field of automobile seat framework cutting, in particular to a laser cutting equipment for automobile seat framework, which comprises a workbench and the like; support wheels are fixedly connected to the left and right sides of the top of the workbench; a guide frame is fixedly connected to the middle of the top of the workbench; a fixed mounting frame is arranged on the right part of the guide frame; a movable mounting frame is arranged on the left part of the guide frame in a sliding mode; a cylinder is connected between the movable mounting frame and the fixed mounting frame; and a material placing mechanism is arranged in the movable mounting frame and the fixed mounting frame. The application adopts a differentiated repulsion driving strategy of multiple electromagnets which are independently controllable, has the outstanding advantages of fast response speed, high adjustment precision, non-contact wear and the like, and the like, and the corresponding magnetic blocks are arranged in a same-pole opposite mode between the electromagnets, so that even if the controller is temporarily powered off, the repulsion force will not disappear or be reversed in polarity instantaneously, and the system stability is higher.

The utility model relates to a platform assembly, a laser processing device and a solar cell manufacturing production line. The platform assembly comprises a bearing platform comprising a bearing surface; and the light processing coating is arranged on the bearing surface in a covering manner and is configured to be used for reflecting or absorbing the laser. According to the platform assembly, the laser processing device and the solar cell manufacturing production line, the probability that dents are formed in the bearing platform can be reduced, and damage to the bearing platform can be relieved.

The utility model relates to robot technical field discloses a four -axis robot point gum single machine, including work table, the left side bottom fixed connection of work table has mounting plate no.

The utility model discloses a plate riveting punch which comprises a punching block with a punching end, a plurality of punching needles arranged at the punching end, a positioning needle arranged at one end of the punching block and a thrust mechanism arranged on the positioning needle in a sleeving mode. According to the riveting punch, the positioning pin is matched with the center hole for positioning, the punching pin punches the edge of the riveting groove, the thrust mechanism pushes the wafer, and therefore one-time riveting forming is achieved, and the production efficiency and the product yield are improved.

The utility model discloses a welding cooling device, including support seat, set up the water storage groove on support seat, set up the flow guide spare on support seat, and the cavity that extends to the top is equipped in flow guide spare, and set up the water inlet and overflow port on flow guide spare, and water inlet and overflow port all are linked together with the cavity, and overflow port is linked together with water storage groove. This welding cooling device passes through the structural combination of support seat, water storage groove and is equipped with the flow guide spare of through cavity, has realized the complete cooling path of cooling medium from water inlet, flows through flow guide spare top, and then from overflow port flows to water storage groove. This design makes cooling medium to be able to directly contact welding area, effectively takes away the heat generated in the process of welding, solves the uneven cooling and the problem of low efficiency of traditional indirect type heat dissipation.

This invention relates to the field of natural saponin separation and recombination, and particularly to a complex of saponin from *Gleditsia sinensis* and saponin from *Camellia oleifera* and its preparation method. The method includes: 1) extracting saponin from *Gleditsia sinensis* pericarp and *Camellia oleifera* cake, respectively, to obtain crude saponin solutions from *Gleditsia sinensis* and crude saponin from *Camellia oleifera*; 2) using macroporous adsorption resin AB-8 as a resin separation column to elute and remove impurities from the crude saponin solutions from *Gleditsia sinensis* and crude saponin from *Camellia oleifera*; 3) eluting the obtained saponin solutions from *Gleditsia sinensis* and *Camellia oleifera* with 25-35% ethanol solution, 40-50% ethanol solution, 55-65% ethanol solution, and 70-85% ethanol solution, respectively, to obtain saponin components from *Gleditsia sinensis* and saponin components from *Camellia oleifera*; 4) recombining the saponin components from *Gleditsia sinensis* and *Camellia oleifera* to obtain the complex of saponin from *Gleditsia sinensis* and *Camellia oleifera*. This invention can improve the purity and surface activity of natural saponins, overcoming the disadvantage of the high critical micelle concentration of *Camellia oleifera*.

The invention provides a preparation method of high-yield icodextrin by combining an ultrasonic field with a single enzyme system. The preparation method comprises the following steps: S1, enzymolysis; s2, performing primary ultrafiltration; s3, ultrasonic hydrolysis; s4, carrying out secondary ultrafiltration; and S5, spray drying. According to the method, firstly, the proportion of dextrin with the molecular weight smaller than 1638 Da in the enzymatic hydrolysate is controlled to be not larger than 7%, the working procedures of recycling macromolecular dextrin and conducting ultrasonic hydrolysis are added, and the yield can reach 80-88%. New amylase does not need to be additionally added in ultrasonic hydrolysis, the hydrolysis time is greatly shortened, the pertinence is high, ultrasonic hydrolysis after enzyme deactivation belongs to physical modification, the reaction degree is conveniently controlled, the generation proportion of dextrin with the molecular weight smaller than 1638 Da is accurately controlled, the production cost is low, the preparation efficiency is high, the consistency of a hydrolysis product and an original product is good, and the method is suitable for industrial production. The generation of 5-hydroxymethylfurfural is completely eradicated, so that the peritoneal dialysis can be continuously carried out.

The utility model discloses a chip resistor test fixture, which comprises a main body, an air suction opening arranged on the main body, an air suction hole arranged above the air suction opening, a clamping device arranged above the air suction hole, a back-and-forth moving module arranged on the outer side of the clamping device, and a tester moving device arranged above the back-and-forth moving module, a support is installed behind the tester moving device, and a camera module is installed on the support. According to the chip resistor test fixture, the suction opening is matched with the suction hole to remove dust, the test environment is purified, errors are reduced, the quality is improved, and cost and efficiency are reduced. The front-back moving module drives the clamping device to move flexibly, so that the multi-element test requirements are met, and the efficiency is improved. And the tester moving device is driven by a motor to be accurately positioned, so that high-precision butt joint with the chip resistor is realized. The clamping device stably clamps the resistors of different sizes, damage is avoided, and the test success rate and the yield are improved.

This utility model discloses a waterproof camping light, specifically relating to the field of outdoor lighting equipment technology. It includes a waterproof lamp tube, a lamp plate bracket, a control board bracket, and a flashlight bracket. The lamp plate bracket is located inside the waterproof lamp tube. Two square waterproof silicone sealants, one and two, are respectively located at both ends of the lamp plate bracket. The control board bracket and the flashlight bracket are locked to the lamp plate bracket by self-tapping screws, thus compressing and sealing the square waterproof silicone sealants. This waterproof camping light utilizes customized square waterproof silicone sealants and a sandwich of waterproof silicone sealant, which are compressed and sealed by self-tapping screws. This avoids the unstable waterproof performance problem caused by thermal expansion and contraction of traditional O-rings. The sealing effect is less affected by temperature changes, improving the waterproof rating, making it suitable for various outdoor environments, and enhancing the product's durability and reliability.

The utility model belongs to the release film technical field, concretely relates to a double barrier layer silicone oil anti -transfer release film, including PET base material layer, the both sides of PET base material layer are provided with first barrier layer and second barrier layer respectively, one side of first barrier layer away from PET base material layer is equipped with the concave -convex structure that continuously and evenly distributes, be provided with the corona layer on first barrier layer, be provided with heavy silicone oil layer on the corona layer, one side of second barrier layer away from PET base material layer is equipped with the corrugated surface, be provided with light silicone oil layer on the corrugated surface. Through the setting of above -mentioned component, effectively prevent release agent transfer.

The invention relates to the technical field of biological pharmacy, in particular to a method for extracting unimodal ulinastatin from human urine. The method sequentially comprises the following steps: carrying out primary capture and elution on human urine through ZGA313 resin chromatography; carrying out ultrafiltration desalination on the eluent by taking purified water as a buffer solution; adjusting the pH value of the desalted liquid, loading the desalted liquid to a monoclonal antibody chromatographic column of which the ligand is an antibody in a partial region of an ulinastatin Kunitz structural domain II, and carrying out specific affinity purification; the collected liquid is subjected to pasteurization virus inactivation and then is loaded to an RPC30 chromatographic column, and polymers generated in virus inactivation are selectively removed according to the difference of the number of polymer and monomer drainage points; and finally, replacing the buffer solution through ultrafiltration to obtain a single-peak ulinastatin solution. The method has the advantages of synergistic process step design, high specificity and pertinence, obvious improvement of the product purity and yield, effective removal of key impurities including polymers, guarantee of the product safety, simple and convenient operation, short period, and suitableness for large-scale production.

The invention discloses a method for reducing the concentration of rare earth in rare earth mother liquor, which comprises the following steps: (1) adding deionized water into a reaction kettle, and heating to 40-60 DEG C; (2) adding rare earth feed liquid generated by an upstream extraction process and an oxalic acid solution with the concentration of 120-180g / L into the reaction kettle in the step (1), and carrying out parallel flow precipitation; and (3) aging the material obtained in the step (2) at room temperature, and then discharging and washing to obtain the rare earth mother liquor. According to the method, after the proportion of the reaction materials and the precipitation temperature are effectively controlled, the content of rare earth elements in the treated rare earth mother liquor is reduced to 100 mg / L or below, and the production yield is increased.

The invention provides a manufacturing method for a vertical casting machine for a super-large-section round billet, and relates to the technical field of round billet casting. The vertical casting machine comprises a steel billet supporting and guiding mechanism and a steel ladle rotating mechanism, and the steel billet supporting and guiding mechanism is arranged below a pouring steel ladle of the steel ladle rotating mechanism; the steel billet supporting and guiding mechanism comprises a supporting frame and a formwork lifting device, the formwork lifting device is arranged in the supporting frame, and the end, close to the steel ladle rotating mechanism, of the formwork lifting device is connected with a pouring formwork used for bearing molten steel poured by the pouring steel ladle. The formwork lifting device is used for conducting lifting motion in the height direction of the supporting frame according to the pouring process, and the method comprises the steps that a plurality of supporting rib plates are arranged in the upper stand column and the lower stand column correspondingly, the upper stand column and the lower stand column are welded and manufactured correspondingly, and the supporting rib plates are removed after heat treatment; and assembling the template lifting device into the supporting frame, and carrying out a cold test on the template lifting device. The method can be used for producing super-large-section round billets, and the manufacturing requirements are met.

The present application belongs to the technical field of automobile accessory processing equipment, and particularly relates to an engine cover welding positioning device, which comprises a base, a movable sliding seat is arranged in the base, a rotatable adjusting support is arranged above the movable sliding seat, a rotary adjusting mechanism is arranged on the support, an object carrier shaped like an isosceles triangle is arranged at the output end of the rotary adjusting mechanism, a splicing moving assembly is arranged above the object carrier, a splicing adjusting assembly is arranged at the output end of the splicing moving assembly, a carrier plate is arranged at the output end of the splicing adjusting assembly, a pressure cylinder is arranged outside the carrier plate, an extension pressure mechanism is arranged above the carrier plate on one side, and a linkage driving mechanism is arranged at the geometric center of the object carrier. The present application can replace manual work to complete the pre-splicing of workpieces, can adjust the splicing position of the workpieces in real time, can improve the accuracy of the splicing of the workpieces, can guarantee the forming quality of the workpieces, can improve the work progress, and can meet the use requirements.

The invention relates to a method for preparing Fmoc-Lys (R)-OH fragment peptide by a solid phase method, and belongs to the technical field of peptide synthesis. According to the method, a solid-phase synthesis process route is adopted, 2-CTC lipid is taken as a solid-phase carrier, an initial material Dde-Lys-FMOC is adopted, any amino acid can be coupled to side chain amino groups in sequence, after coupling is completed, hydrazine hydrate is adopted for reduction removal of Dde and FMOC-0su cap exposure of amino groups, and finally, weak acid is adopted for cutting off full-protection peptide from resin, so that a target product crude peptide is obtained. The purity of the crude peptide prepared by the method reaches 95%, the purity can reach 99% or above through one-step extraction, the method avoids the problems of long liquid phase synthesis time and tedious procedures, and the product yield and the process stability are greatly improved.