288results about How to "Realize continuous production" patented technology

The invention relates to a slotted lining forming device and a slotted lining continuous preparation system and method. The slotted lining forming device comprises a leveling feeding mechanism, a forming mechanism, a forming mechanism and a forming mechanism, wherein the leveling feeding mechanism is provided with a feeding channel; the outer edge rolling forming mechanism comprises an outer edge rolling forming die with a forming groove; the positioning mechanism comprises a male die shaft; the pre-bending mechanism comprises a pre-bending die with a pre-bending arc groove; the pre-bending die can conduct multiple times of extrusion on the strip conveyed to the male die shaft so that the head section of the strip can form a pre-bending arc section. The outer edge rolling forming die can axially move to a preset position after the male die shaft and the pre-bending die are both separated from the middle area, so that the pre-bending arc section of the strip moves along the groove wall of the forming groove, and then the head section of the strip forms a forming arc section. And the cutting and discharging mechanism comprises a cutting knife, and the cutting knife can move downwards and cut off the strip, so that the straight cylinder type slotted lining is obtained. According to the continuous forming device, continuous forming of the slotted linings can be achieved, and the production efficiency is higher.

The invention discloses a wire cutting machine for screw production. The wire cutting machine comprises a base, a feeding cutting device arranged at one end of the base and a cold heading device arranged at the other end of the base. The feeding and cutting device comprises a cutting base, and the cutting base is provided with a straightening groove position and a forming positioning hole. The cutting seat is provided with a material pushing mechanism on one side of the straightening slot position; the pushing mechanism is provided with a pushing shaft which is arranged in the forming positioning hole in a sliding mode. The cutting base is provided with a cutting assembly. A straightening device is arranged at the position, corresponding to the straightening groove position, of the base; the straightening device is provided with a straightening channel; the straightening device is in one-way transmission connection with the pushing mechanism; a material moving mechanism is arranged at the position, corresponding to the straightening channel, of the base; continuous production of screws is achieved, so that the production efficiency is improved, the coordination time of cutting and cold heading is effectively shortened, and the consistency of products is better.

The invention belongs to the technical field of steel reinforcement framework machining, and discloses a T-beam web framework single-piece production line and method.The T-beam web framework single-piece production line comprises two feeding devices, a horseshoe rib bending device, a long stirrup bending device, a welding device, a cantilever crane and a discharging device, and the two feeding devices can transfer steel bars to the horseshoe rib bending device and the long stirrup bending device correspondingly; the two cantilever cranes can transfer reinforcing steel bars to the welding device from the horseshoe rib bending device and the long stirrup bending device respectively, the welding device can weld horseshoe ribs and long stirrups together, and the discharging device can take a formed T-beam web framework single piece out of the welding device. According to the production line for the T-beam web framework single piece, automatic production of the T-beam steel reinforcement framework single piece can be achieved.

The invention discloses a pyraclostrobin preparation device which comprises a reaction kettle and further comprises a temperature control cooling box, the temperature control cooling box is provided with a containing space, a partition part is arranged in the temperature control cooling box, the partition part divides the containing space into a cooling channel and a temperature control channel, and the temperature control channel is communicated with the cooling channel. The temperature control cooling box and the separation part are both made of heat conduction materials, a hydrothermal solution is introduced into the temperature control channel, and the temperature of the hydrothermal solution is higher than the crystallization temperature of pyraclostrobin. According to the pyraclostrobin preparation device provided by the invention, the reaction kettle and the temperature control cooling box are combined for use, so that a pyraclostrobin solution can circularly move between the reaction kettle and the temperature control cooling box, and precipitates and irregular crystals are fed into the reaction kettle for re-processing; the production speed of the pyraclostrobin crystals is increased, and meanwhile continuous production can be achieved.

The invention aims at disclosing a magnesium hydride continuous production device and process, and relates to the technical field of magnesium hydride preparation, the magnesium hydride continuous production device comprises a sealing shell, a heating inner container, a power assembly, a feeding assembly, a discharging assembly, an inert gas replacement assembly and a hydrogenation inlet; the heating inner container comprises a side wall, a feeding end and a discharging end, a plurality of gas one-way valves are arranged on the side wall, a spiral propeller, a plurality of steel balls and / or a plurality of steel bars are arranged in the heating inner container, and a filter screen is arranged at the discharging end; a conical part and a recycled material port are arranged at the bottom of the sealed shell; the feeding assembly comprises a feeding lock hopper and a feeding pipe, and the feeding pipe communicates with the feeding end. The discharging assembly comprises a discharging pipe and a discharging lock hopper, and the discharging pipe is communicated with the discharging end; the method has the technical effects that the particle size of the magnesium powder is 10-300 microns, the particle size of the produced magnesium hydride is 50-800 nm, continuous feeding, continuous reaction and continuous discharging can be realized, large-scale production of the magnesium hydride is realized, and the hydrogen storage density of the magnesium hydride is not less than 7 wt%.

The invention discloses a copper smelting method of an Ausmelt furnace without a top-blowing spray gun, and relates to the technical field of copper smelting of the Ausmelt furnace, and the copper smelting method comprises the following steps: (1) spraying coal powder and mineral powder into a molten pool through an ore gun and a coal gun of the Ausmelt furnace without the top-blowing spray gun; (2) a side-blowing combustion gun of the Ausmelt furnace without the top-blowing spray gun sprays fuel to the molten pool; and (3) when the copper matte reaches the target grade 58-62%, ending the reaction, recording the melt temperature distribution, measuring the viscosity of the slag, and taking the slag sample for analyzing the content of Fe3O4. The Ausmelt furnace without the top blowing spray gun comprises a flue, a baffle, a combustion gun, an ore gun and a coal gun, a flue is arranged on the upper portion of the furnace body, a baffle is arranged below the flue, combustion guns are symmetrically arranged on the furnace body above a slag layer, coal guns are symmetrically arranged on the furnace body at the junction of the slag layer and a molten copper bath, ore guns are symmetrically arranged on the furnace body at a molten copper bath layer, and pressure gauges are arranged on the ore guns and the coal guns.

The invention belongs to the technical field of biological medicine, and particularly relates to sterile cefepime hydrochloride and a direct preparation method thereof. The method comprises the following steps: firstly, carrying out condensation reaction on a 7-MPCA solution and an AE active ester solution through a solid base catalyst column at the same time; then, carrying out extraction phase separation, two times of pH regulation crystallization, activated carbon decoloration and sodium sulfite reduction on the condensation liquid to obtain a cefepime hydrochloride liquid to be crystallized; and then taking a part of the cefepime hydrochloride to-be-crystallized liquid to prepare a seed crystal mixed liquid, and adding the rest of the cefepime hydrochloride to-be-crystallized liquid and the crystallization solvent into the seed crystal mixed liquid at a specific speed to obtain the sterile cefepime hydrochloride. According to the method disclosed by the invention, the continuous production of the sterile cefepime hydrochloride is realized, the preparation period of the sterile cefepime hydrochloride is greatly shortened, side reactions and product degradation are reduced, the quality and yield of the obtained cefepime hydrochloride product are relatively high and stable, and industrial production is facilitated.

The invention discloses an epoxy organic silicon tackifier as well as a preparation method and application thereof, and relates to the technical field of tackifiers. The preparation method of the epoxy organic silicon tackifier comprises the following steps: filling an ultra-microporous Pt / SiO2 catalyst into a reactor, and heating to activate the ultra-microporous Pt / SiO2 catalyst; the preparation method comprises the following steps: mixing tetramethylcyclotetrasiloxane, allyl glycidyl ether and 3-methacryloxypropylmethyldimethoxysilane to obtain a mixed reaction raw material, heating the mixed reaction raw material until the temperature reaches 70-100 DEG C, adding the mixed reaction raw material into a reactor, reacting to generate a synthetic product, and collecting the synthetic product flowing out of the bottom of the reactor, the epoxy group organic silicon tackifier is obtained. According to the preparation method of the epoxy organic silicon tackifier, a solvent does not need to be added in the reaction process, potential safety hazards are avoided, the step of removing the solvent and the catalyst can be omitted, the technological process is simplified, and continuous production of the tackifier can be achieved by adopting the method of the scheme.

The invention discloses a pressure swing adsorption device of a hydrogen production system. The pressure swing adsorption device comprises a first adsorption tower, a second adsorption tower, a waste gas emission unit, a hydrogen input pipe, a hydrogen output pipe, a program control valve group and a PLC (Programmable Logic Controller) control system, according to the device, a plurality of adsorption layers are respectively arranged in the first adsorption tower and the second adsorption tower, and the pressure change of each adsorption tower in different adsorption and regeneration stages is controlled, so that the intelligent control of the pressure swing adsorption hydrogen production process is realized, and the first adsorption tower and the second adsorption tower alternately perform adsorption and regeneration; compared with the traditional two independent steps of deoxidation and drying, the method has the advantages that the influence on the purification effect of hydrogen due to flow connection is avoided, the hydrogen purification flow is efficiently integrated, and the purification effect and efficiency of hydrogen are improved; by controlling the opening and closing time and sequence of the program control valve group, when one adsorption tower performs adsorption operation, the other adsorption tower performs regeneration operation, so that the overall efficiency and yield of the system are improved.

The invention provides a honeycomb aluminum plate production line, and relates to the technical field of plate production equipment, the honeycomb aluminum plate production line comprises a first feeding device, a second feeding device, a conveying device, a gluing device and a pressing device; the conveying equipment comprises a conveying rack, a first conveying device arranged on the conveying rack and a second conveying device, the gluing equipment is arranged above the first conveying channel and in front of the intersection, and the gluing equipment comprises a glue containing groove, a gluing motor, a first glue roller, a second glue homogenizing roller and a third gluing roller. The aluminum honeycomb core is conveyed to the first conveying channel through the first feeding device, the first plate is conveyed to the second conveying channel through the second feeding device, when the first conveying channel and the second conveying channel intersect, the first plate is pressed to the aluminum honeycomb core subjected to gluing treatment through the pressing device, and continuous production of multiple plates is achieved. And meanwhile, the third glue spreading roller of the glue spreading equipment is in contact with the aluminum honeycomb core to carry out glue spreading action, and glue spreading is uniform.

The invention provides a titanium-based catalyst, a preparation method of the titanium-based catalyst and a synthesis method of pyroxasulfone. The titanium-based catalyst comprises a main active component and an auxiliary metal component M doped in the main active component, wherein the main active component is a titanium dioxide nanobelt, the titanium dioxide nanobelt forms an oxygen vacancy defect, and the concentration of the oxygen vacancy defect is 5-20 [mu] mol / g; the auxiliary metal component M comprises at least one of Re, Ru, Mo, V, Ce, Zn and Cr. The titanium-based catalyst is filled in a fixed bed and is used in a reaction for synthesizing pyroxasulfone through thioether oxidation, and oxygen vacancy defect sites not only can enhance adsorption and activation of reactants so as to improve reaction kinetics in the oxidation process, but also can generate electron interaction with auxiliary metal ions so as to improve the catalytic activity of pyroxasulfone. The dispersity and the stability of the auxiliary agent metal component M on the titanium dioxide nanobelt are improved, so that more reaction active sites are provided, and continuous synthesis of pyroxasulfone is realized.

The present invention relates to the field of aerogel preparation methods, and specifically to a method for continuously preparing in-situ hydrophobic aerogel powder by dual-fluid atomization. The present invention uses dual-fluid atomization technology to spray silica sol containing hydrophobic groups and catalysts through a dual-fluid nozzle. After the two fluids are atomized, they collide and mix with each other to form small droplets; the small droplets are quickly heated in a spray dryer to form small gel particles; the small particles are continuously dried in hot air to gradually form dry, hydrophobic aerogel particles. By gravity separation or centrifugal separation, the particles are collected according to different particle sizes to obtain aerogel powder with uniform particle size.

The utility model discloses a novel wiped film cracker, which belongs to the technical field of oligomer processing and comprises a main machine body and a variable frequency motor fixed at the top end of the main machine body, the variable frequency motor is in transmission connection with a mechanical seal through a coupler, and the mechanical seal is movably connected to the top of the outer side of the main machine body. A stirring paddle with a scraping plate is arranged in the main machine body, a feed liquid distributor is fixedly arranged at the middle upper part of the inner side of the main machine body, the top end of the stirring paddle with the scraping plate is in interference fit connection with the top end of the mechanical seal, and a wear-resistant bearing is arranged at the bottom end of the stirring paddle with the scraping plate. The wiped film cracker with the structure can realize uniform dispersion of feed liquid, adjust the distance between the scraper and the inner wall of equipment, control the film forming thickness of the feed liquid, effectively prevent coking and carbon deposition of the feed liquid, avoid frequent disassembly and assembly of the equipment, ensure continuous operation of a process system, and realize full-automatic and continuous production of cracking cyclization reaction.

The invention belongs to the field of metal materials, and discloses a preparation method of porous nickel, which comprises the following steps: step 1, mixing nickel powder, PMMA (polymethyl methacrylate) powder, a plasticizer and a flexibilizer to obtain uniform powder; step 2, molding the powder obtained in the step 1 to obtain a green body; 3, the green body obtained in the step 2 is subjected to vacuum degreasing and sintering, and a finished product is obtained. According to the invention, the performance of the PMMA powder is improved by using the plasticizer and the flexibilizer, the plasticizer improves the performance of a PMMA molecular layer, so that the flexibility of the PMMA molecular layer is enhanced, the PMMA molecular layer is easy to process, and the flexibilizer can greatly enhance the toughness of the material; through special cooperation of the plasticizer and the flexibilizer, the pore forming effect is improved, continuous production of the porous metal nickel is achieved, and meanwhile the invention further provides the porous nickel.

The invention provides a wire mesh braiding machine and a braiding technology, and relates to the technical field of wire mesh braiding device.The wire mesh braiding machine comprises a workbench, a material collecting plate is mounted in the workbench, mounting plates are mounted on the side walls of the two sides of the workbench, first driving motors are mounted on the mounting plates, and first rotating shafts are mounted at the output ends of the first driving motors; a driving gear is fixedly mounted on the first rotating shaft, a mounting frame is fixedly mounted on the side wall of the workbench, and a controller and a mounting strip are fixedly mounted on the mounting frame; a feeding mechanism is fixedly mounted at the upper end part of the mounting strip; the feeding mechanism comprises a fixed disc, the fixed disc is fixedly installed on the installation strip, a storage rack is fixedly installed on the fixed disc, inner grooves are formed in the side walls of the two sides of the storage rack, sliding strips are slidably installed in the two inner grooves, all links are tightly connected, the pause and waiting time in production is shortened, continuous production is achieved, and the production efficiency is improved. And the overall production efficiency can be improved.

The invention belongs to the field of preparation of brazing filler metal, and particularly relates to a preparation method of brazing filler metal. The preparation method of the brazing filler metal comprises the following steps that the upper brazing filler metal strip, the at least one middle brazing filler metal strip and the lower brazing filler metal strip are welded together under the action of an electrode roller; the components of at least one middle brazing filler metal belt are different from those of the upper brazing filler metal belt and the lower brazing filler metal belt, and the upper brazing filler metal belt, the at least one middle brazing filler metal belt and the lower brazing filler metal belt are fused into the whole alloy brazing filler metal during brazing. According to the preparation method of the brazing filler metal, after the multiple brazing filler metal strips enter the electrode roller, the composite interfaces of every two adjacent brazing filler metal strips are melted under the action of resistance heat and form metallurgical bonding under the pressure of the electrode roller, and the functional composite brazing filler metal with extremely high integrity is obtained; on the basis of metallurgical bonding, the brazing filler metal can be conveniently fused into an integral alloy, the deviation design or instability condition of brazing filler metal composition is reduced, and it is guaranteed that the expected welding seam function is achieved.

The present invention provides a hydraulically controlled stamping device for a radial diffuser assembly, which relates to the technical field of stamping equipment, and comprises a hydraulic control unit, on which a blanking auxiliary part is installed; the blanking auxiliary part is used for punching holes; a heating forming part is installed on the hydraulic control unit; a lower die separation part is installed on the heating forming part; the lower die separation part is used to move downward and separate from the stamping workpiece; a stamping trimming unit is installed on the blanking auxiliary part; the lower die separation part adopts a detachable structure to ensure stable stamping and one-time punching of a cover plate, and can automatically move downward away from the cover plate to facilitate trimming work, and adopts a detachable structure to ensure the continuity of cover plate processing, so as to solve the problem that the current radial diffuser assembly stamping device is not convenient for automatically trimming the punched holes after stamping the steel plate, and the processing continuity is poor.

The invention relates to a method for reducing benzene content in gasoline and a method for producing low-benzene gasoline. The method comprises the following steps: performing high-precision distillation cutting on benzene-rich gasoline to obtain gasoline light fraction, middle fraction and heavy fraction; the benzene-rich gasoline middle fraction enters a moving bed or fluidized bed or fixed bed reactor to be in graded contact with a low-carbon olefin-rich material flow for catalytic alkylation with a mesoporous molecular sieve catalyst, and benzene is efficiently converted into alkylbenzene, so that the benzene-rich gasoline is converted into high-octane-number low-benzene gasoline and liquefied gas. The method provided by the invention reduces the benzene content and olefin content in gasoline, improves the octane number of gasoline and increases the yield of liquefied gas, not only solves the problem that refinery gasoline has high benzene content and is difficult to meet the national VI standard of motor gasoline, but also improves the quality of gasoline and increases the yield of liquefied gas.

The invention provides a production device and a production method of a core-shell precursor with normal particle size distribution, the production device comprises a homogeneous reactor, a stirring reactor and a thickener which are sequentially connected through a pipeline, and the thickener is connected back to the stirring reactor through a pipeline to form a material circulation loop; the production device adopts a continuous method to produce the core-shell precursor with normal particle size distribution. According to the method, a homogeneous reactor and a stirring reactor are adopted to synchronously carry out coprecipitation reaction, and a thickener is adopted to realize continuous reaction and particle size control, so that a core-shell precursor with normal particle size distribution is obtained. The problem of heat instability of a high-nickel positive electrode material in the prior art is solved, meanwhile, the production efficiency and quality of the core-shell precursor are improved, the performance and safety of the battery are finally improved, and large-scale popularization and application are facilitated.

The present invention provides a movable pin welding tool, which relates to the technical field of auxiliary equipment for pin welding, including a tool base, a driving motor is fixedly connected to the tool base by bolts at the bottom, a lower rotating table is fixedly connected to the rotating shaft of the driving motor, a rotating table support frame is fixedly connected to the top of the lower rotating table, and an upper rotating table is welded to the top of the rotating table support frame. The pin welding tool in the present application has the functions of automatic clamping and automatic unloading of the pin, and does not require manual or automated mechanical control, thereby improving production efficiency and reducing production costs, and solving the problem that the traditional pin ear piece welding tool needs to be manually or mechanically installed on the tool before welding can be started, and after welding is completed, the finished workpiece needs to be taken out manually or mechanically and a new pin and ear piece needs to be installed, and the welding work is stopped during this process, and the intermittent time process is not conducive to efficient and continuous welding work.

The moisture power generation device provided by the invention at least comprises a core layer, a skin layer and a conductive metal wire wound outside the skin layer, the skin layer comprises polyvinyl alcohol, the core layer comprises thermoplastic polyurethane and conductive filler, the skin layer wraps the core layer, and the conductive metal wires are not in direct contact with the core layer. The preparation method at least comprises the following steps: completely dissolving polyvinyl alcohol powder in a mixed solution of water and DMSO to prepare a skin layer spinning solution; stirring and mixing the DMF solution of the thermoplastic polyurethane powder and the DMF dispersion liquid of the conductive filler at a high speed to prepare a core layer spinning solution; and spinning the skin layer spinning solution and the core layer spinning solution at different extrusion speeds, carrying out coagulating bath and drying treatment, and finally winding a metal wire on the periphery of the skin layer to prepare the moisture power generation device. The device has good thin moisture absorption performance, can generate more current, improves the output power of the power generation device, is simple in preparation process, facilitates continuous production, and can be widely applied to flexible wearable equipment and self-powered power supplies.

The invention discloses a supercritical carbon dioxide foamed rubber material and a preparation method thereof, and belongs to the technical field of foamed rubber. The foaming rubber is prepared from the following raw materials in parts by weight: 70 to 80 parts of natural rubber, 20 to 30 parts of chloroprene rubber, 20 to 30 parts of white carbon black, 4 to 5 parts of plasticizer, 1 to 1.5 parts of activating agent, 1 to 1.5 parts of coupling agent, 2 parts of anti-aging agent, 1.8 parts of sulfur, 3 to 4 parts of accelerant, 0.2 part of scorch retarder, 1 to 1.5 parts of potassium adipate, 5 parts of zinc oxide, 2 parts of magnesium oxide, 2 parts of stearic acid and 3.5 to 3.65 parts of supercritical carbon dioxide fluid. The continuous production of the rubber physical foaming sole can be realized, the foaming rubber vulcanization and foaming process can be completed by a one-time process, the size is basically stable after mold stripping, the sole can be used for subsequent shoemaking production without further processing, and the sole with relatively complex appearance size can be produced. The method is suitable for preparing the foamed rubber sole.

The invention discloses a feeding assembly for continuous welding of a metal ring. The feeding assembly comprises a feeding mechanism, a guide mechanism and a feeding mechanism. The feeding mechanism is installed below the guide mechanism, a vertical limiting plate matched with a seam of a workpiece is arranged between the feeding mechanism and the guide mechanism, and the limiting plate is in sliding connection with the guide mechanism. A workpiece is arranged on the feeding mechanism in a sleeving mode, a seam of the workpiece faces upwards, and the lower end of the limiting plate is clamped into the seam of the workpiece. The fixed end of the feeding mechanism is connected with the guide mechanism, and the driving ends of the feeding mechanism are arranged on the two sides of the feeding mechanism, make contact with workpieces on the feeding mechanism and drive the workpieces to move in the axial direction of the feeding mechanism. The invention further discloses a feeding and discharging system and method. The automatic welding machine has the beneficial effects that automatic feeding of workpieces and positioning of weld seam openings can be conducted, automatic feeding and discharging are achieved, the automation degree is high, and the feeding efficiency and the welding quality are improved.

The invention discloses photovoltaic glass, a preparation method thereof and a photovoltaic module, and relates to the technical field of photovoltaic glass, the photovoltaic glass comprises a glass substrate and an antireflection film arranged on one side face of the glass substrate, and the antireflection film comprises an interference film stack and a nano-porous layer which are sequentially arranged on the glass substrate; wherein the interference film stack comprises high-refractive-index film layers and low-refractive-index film layers, the high-refractive-index film layers and the low-refractive-index film layers are alternately arranged in the direction away from the glass substrate, and the porous structure of the nano-porous layer is a surface closed-pore structure. According to the technical scheme provided by the invention, the reflectivity of the photovoltaic glass can be reduced, and the wear resistance and weather resistance of the photovoltaic glass can also be considered, so that the power generation performance of the photovoltaic module is improved.

This invention provides a synthesis apparatus for phenylhydantoin, a precursor of phenylglycine, belonging to the field of chemical equipment technology. It includes an ammonium bicarbonate solution reaction tank, an intermediate tank, and a phenylhydantoin solution synthesis tank. The ammonium bicarbonate solution reaction tank is equipped with an ammonia inlet pipe and a carbon dioxide gas inlet pipe. The intermediate tank is connected to the ammonium bicarbonate solution outlet at the bottom of the reaction tank via a pipeline. The top of the phenylhydantoin solution synthesis tank is equipped with a sodium cyanide solution inlet pipe, a benzaldehyde solution inlet pipe, and an ammonium bicarbonate solution inlet pipe. The phenylhydantoin solution synthesis tank includes a jacketed synthesis tank body and is equipped with a heating pipe and a discharge pipe connected to the internal cavity of the jacket to provide a suitable temperature for the synthesis of phenylhydantoin. This application can reduce the frequent dumping operations of the batch reactor, realize the continuous reaction of the phenylhydantoin solution, and at the same time, use ammonia to absorb carbon dioxide instead of solid ammonium bicarbonate, reducing the safety hazards and environmental risks caused by leakage and improving production efficiency.

The invention relates to the field of surface treatment, in particular to a full-automatic stainless steel aviation conduit pickling and passivating production system and a production process thereof.The production system comprises a production line data acquisition layer, a system program control layer and a process route setting layer, and the production process comprises the following specific steps that A, inspection is conducted before pickling and passivating; b, preparation before pickling and passivation; c, pre-starting the system; d, full-automatic pickling and passivating treatment; on the basis of a full-automatic stainless steel aviation conduit pickling and passivating production system, large-batch and continuous production of stainless steel aviation conduits can be achieved, the production quality, production efficiency, energy conservation, environmental protection and the like are far better than those of an existing manual pickling and passivating technology, and the problem that the conduit pickling and passivating efficiency is low in the aviation repair process is solved; and the automation level of aviation equipment surface treatment is greatly improved.

This invention discloses silicon carbide particles and their preparation method, relating to the field of semiconductor technology. Silicon carbide particles with controllable particle size are prepared using a reaction system including a fluidized bed, with an average particle size of 3mm-11mm. The fluidized bed includes nozzles on the inner side of a cone wall, and the focusing point and flow rate of the fluid ejected from the nozzles are set. By controlling the flow rate of the fluid ejected from the nozzles, the particle size of the finished product is precisely controlled, reducing the defect rate caused by substandard particle size and achieving a high particle size yield. The product has controllable particle size and high purity, avoiding the risks introduced by crushing and screening. Furthermore, the production process does not require the disassembly and assembly of a single furnace, enabling continuous production, simplifying the production process, reducing input costs, ensuring product quality, and improving production efficiency, providing a new approach for future industrialization.

The invention discloses a flexible light bar production device and method and a light bar. The flexible light bar production device comprises a light bar pay-off rack, a metal straightening machine, light body coating equipment and light collecting equipment which are sequentially arranged from the feeding end to the discharging end. The feeding end of the lamp body coating equipment is connected with the discharging end of the lamp bar pay-off rack and the discharging end of the metal straightening machine; the feeding end of the lamp collecting device is connected with the discharging end of the lamp body wrapping device. According to the flexible light bar production device, the metal straightening machine is arranged in front of the colloid extruder and used for wrapping the flexible circuit board and the bendable flexible metal bar together, so that continuous production of the flexible light bar is achieved, the limitation of the length of a finished product light body is broken through, and the application scene and the requirement of the high-length bendable light bar are widened; due to the fact that the limitation of the manufacturing length of the light bars is broken through, the light bars can be continuously produced, the production efficiency and productivity of the light bars are improved, and the production cost is reduced.

This utility model discloses a lithium iron phosphate slurry preparation device, including multiple grinding mechanisms connected in series. Each grinding mechanism includes grinding components and screening components. The grinding precision of the multiple grinding components gradually increases along the series direction. The screening component has a feed inlet, a return inlet, and a discharge outlet. The feed inlet is connected to the discharge end of the grinding component. The return inlet and discharge outlet are used to discharge materials with particle sizes larger than and smaller than a set value, respectively. The return inlet is connected to the feed end of the grinding component, and the discharge outlet is connected to the feed end of the grinding component in the next grinding mechanism in the series. By connecting the grinding mechanisms in series, continuous production of lithium iron phosphate slurry is achieved, avoiding performance fluctuations between batches. Furthermore, by setting a screening component in each grinding mechanism, the grinding precision of each stage can be controlled, allowing for precise control of the abrasive particle size.

The invention belongs to the technical field of cable production equipment, and discloses an adjustable clamp for cable comprehensive protection, the adjustable clamp comprises a mounting rack, a slide block, a first adjusting screw rod and a second adjusting screw rod, the mounting rack comprises a bottom plate, a U-shaped plate is arranged at the top of the bottom plate, the slide block is slidably connected with the U-shaped plate along the vertical direction, and the first adjusting screw rod is connected with the second adjusting screw rod; the first adjusting lead screw penetrates through a back plate of the U-shaped plate and is in threaded connection with the back plate, the bottom end of the first adjusting lead screw is rotationally connected with the sliding block, the sliding block is provided with a mounting hole, the upper portion of the mounting hole is provided with an upper half sizing die in sliding connection with the mounting hole in the vertical direction, and the lower portion of the mounting hole is provided with a lower half sizing die. The second adjusting lead screw penetrates through the first adjusting lead screw and is in threaded connection with the first adjusting lead screw, and the bottom end of the second adjusting lead screw penetrates through the sliding block and is rotationally connected with the upper half sizing die. By means of the first adjusting lead screw and the second adjusting lead screw which are nested and are in threaded connection, the positions of the sliding block and the upper half sizing die can be conveniently adjusted, and practicability is high.