31 results about "Powder injection" patented technology

A powder treating apparatus using microwave torch plasma having a high edge area density is disclosed. The powder treating apparatus includes a microwave waveguide, wherein when a dominant mode waveguide for transmitting an electromagnetic wave of a specific frequency is a, the microwave waveguide has a width of na, where n is an integer greater than or equal to 2; a discharge tube vertically extending through the waveguide such that all of two or more peaks of an electric field distribution within the waveguide are positioned in an inner space of the discharge tube; a plasma discharge gas injection unit disposed at a side of one end in a vertical direction of the discharge tube and configured to inject the plasma discharge gas into the discharge tube; and a treatment target powder injection unit disposed at a side of the other end in the vertical direction of the discharge tube and configured to inject the treatment target powder into the discharge tube.

Disclosed are a pharmaceutical composition, an aprepitant injection, and an aprepitant freeze-dried powder injection. The pharmaceutical composition comprises aprepitant, a primary stabilizer, and a secondary stabilizer, wherein the primary stabilizer comprises sodium deoxycholate and the secondary stabilizer comprises povidone. The aprepitant injection can be administered by injecting. The formulation uses a largely reduced amount of excipients, and is less irritative to an injection site, less prone to cause a hypersensitive reaction, and thus safer when being used by a patient. The formulation has good stability and can be stored and transported at room temperature, largely reducing production, storage, and transportation costs.

The invention discloses a powder injection system and a powder injection method.The powder injection system comprises a storage container and a powder injection device, the powder injection device comprises a coarse powder injection assembly and a fine powder injection assembly, and the coarse powder injection assembly and the fine powder injection assembly are both arranged above the storage container; a first powder injection opening is formed in the lower end of the coarse powder injection assembly, and powder is injected into the storage container in a free falling mode through the first powder injection opening; a second powder injection opening is formed in the lower end of the fine powder injection assembly, and powder is spirally injected into the storage container through the second powder injection opening. According to the technical scheme, the powder injection system can improve the powder injection efficiency and the powder injection precision at the same time.

The utility model relates to blast furnace pig iron field, concretely is a kind of blast furnace pulverized coal injection pressure relief system.A kind of blast furnace pulverized coal injection pressure relief system, including injection tank (1) and coal powder bin (2), coal powder bin (2) is located in the side of injection tank (1), still include first pressure relief branch pipe (31), second pressure relief branch pipe (32), bypass pipe (33), main pressure relief pipeline (34), pressure relief cut-off valve (41), regulating valve (42), big pressure relief valve (43), micro pressure relief valve (44), pressure sensor (5) and controller (6), the air inlet of first pressure relief branch pipe (31) is connected the top 1# gas delivery end of injection tank (1), pressure relief cut-off valve (41) and regulating valve (42) are sequentially connected on first pressure relief branch pipe (31), big pressure relief valve (43) is connected in parallel by bypass pipe (33) and regulating valve (42);The air inlet of second pressure relief branch pipe (32) is connected the top 2# gas delivery end of injection tank (1), micro pressure relief valve (44) is connected on second pressure relief branch pipe (32).The utility model is high in efficiency, long in life, protects environment.

The present application relates to the pile forming technical field, especially to a kind of pile forming cement powder pipe control method and device.The method comprises: obtaining the real-time construction parameter, real-time environmental parameter and real-time control parameter of cement powder;Based on real-time construction parameter and real-time environmental parameter, determine the deviation comprehensive influence index;Wherein, deviation comprehensive influence index is used to quantify the influence degree of real-time construction parameter and real-time environmental parameter on pile quality;When deviation comprehensive influence index is greater than the first preset value, real-time control parameter and deviation comprehensive influence index are substituted into the preset target function to obtain the optimized control parameter;Wherein, the optimized control parameter includes the optimized cement powder supply, the optimized cement powder injection angle and the optimized cement powder mixing ratio;Based on the optimized control parameter, control cement powder spraying machine.In this way, the present application can ensure the premise of cement powder supply, so that cement powder is more evenly distributed.

This invention provides a method for improving the yield of metal raw materials in an electric arc furnace, comprising the following steps: The furnace charge is added to the electric arc furnace in batches. After each batch is added, the smelting process of a single batch is divided into a slag-forming stage and a melting and heating stage. When the smelting process of a single batch is in the slag-forming stage, oxygen is supplied using the furnace door oxygen lance and carbon is supplied using a carbon lance, while the main oxygen mode of the furnace wall oxygen lance is turned off. When the smelting process of a single batch is in the melting and heating stage, the main oxygen of the furnace wall oxygen lance and the furnace door oxygen lance are used in tandem to enter the oxygen supply mode, while the carbon powder supply of the carbon lance is increased until the smelting of that batch is completed. This invention improves the oxygen supply and carbon powder injection operations in the electric arc furnace steelmaking process, thereby increasing the yield of metal raw materials. This method, while meeting the requirements of smelting speed and molten steel quality, can significantly reduce molten steel loss during the smelting process, and its scrap steel recovery rate can reach 93.9%.

This invention discloses a dicing device for producing high-viscosity fruit juice concentrate, comprising a processing box, a dicing plate slidably connected inside the processing box, and multiple dicing slots at the upper end of the dicing plate. Multiple powder injection grooves are also provided on the side walls of the dicing plate, with each pair of adjacent injection grooves positioned on opposite sides of an adjacent dicing slot. The injection grooves communicate with the dicing slots via powder inlets, and are connected to a powder storage tank via powder injection pipes. An electromagnetic control valve is installed inside the powder injection pipes, and the powder storage tank contains food-grade translucent thickening powder. This invention adds thickening powder to the injection grooves via the injection pipes. During the dicing process of the fruit on the dicing plate, an air injection mechanism continuously blows the thickening powder falling into the injection grooves onto the side walls of the diced fruit pieces. This ensures that each diced fruit piece is coated with thickening powder, resulting in a uniform and consistent taste when pressed into juice.

A dexamethasone sodium phosphate lyophilized composition suitable for administration to the eardrum and a preparation method therefor are provided. Provided is a lyophilized powder injection preparation, wherein the preparation is a dexamethasone medicament lyophilized powder injection omitting a lyophilization supporting agent or an excipient or a matrix agent, wherein the lyophilized powder injection preparation comprises pharmaceutically acceptable auxiliary material of glycerol, and the glycerol is added before the lyophilized powder injection preparation is lyophilized. The provided lyophilized preparation omits a lyophilized supporting agent or an excipient, achieving the effect of improving the stability of the drug by only adding a small amount of glycerol, and also allowing adjustment the osmotic pressure to be closer to the physiological osmotic pressure during the tympanogram administration and prolong the action time of local administration, thereby increasing the safety and effectiveness of the tympanogram administration.

The utility model relates to medical structure production technical field especially disclose a kind of powder injection device for medical structure production, including feeding cylinder, the upper surface of feeding cylinder is provided with connecting barrel, the upper surface of feeding cylinder is provided with clamping groove, adjusting mechanism includes through-hole, adjusting plate and adjusting hole, limiting mechanism includes base frame, spring and limit plate, when the problem appears in the bottom of feeding cylinder, the connection between limit plate and adjusting hole is released, then push adjusting plate makes adjusting plate close the opening of connecting barrel, can pull connecting barrel upward to make the clamping of connecting barrel and feeding cylinder be released, at this time, the height of feeding cylinder is reduced, staff can observe the inside of feeding cylinder, and the inside of feeding cylinder is cleaned, reduce work difficulty, if there is a big problem, then disassemble feeding cylinder, the operation of reducing height in early stage also provides convenience for subsequent overall disassembly work, reduces disassembly work difficulty, improves maintenance efficiency, reduces the time of equipment downtime due to breakdown.

This invention discloses a sidewall telescopic oxygen blowing and powder injection device for electric arc furnaces and its control method, belonging to the field of metallurgical equipment technology. It solves the technical problems of existing electric arc furnace oxygen lances being unable to adapt to changes in molten pool height and the need for the furnace door to be kept open throughout the operation of existing furnace door oxygen lances. The sidewall telescopic oxygen blowing and powder injection device of this invention includes a carbon lance, an oxygen lance, a telescopic mechanism, a support and fixing unit, and a control unit. The telescopic mechanism is fixed to the support and fixing unit; the control unit controls the telescopic mechanism's telescopic movement; both the carbon lance and oxygen lance are mounted on the telescopic mechanism, and the telescopic oxygen blowing and powder injection device can be installed on both sides of the electric arc furnace door. The carbon lance and oxygen lance extend into the furnace through holes in the water-cooled furnace wall. This sidewall telescopic oxygen blowing and powder injection device can adjust the lance head position according to the molten steel level in the furnace, and the furnace door can be closed throughout the smelting process, ensuring optimal smelting results.

The application discloses a powder injection equipment and an electrolyte configuration device, and relates to the technical field of batteries. The powder injection equipment comprises a support, a powder injection assembly and a driving mechanism. The powder injection assembly comprises a powder barrel arranged on the support and a powder injection rod arranged in the powder barrel and movable between a first position and a second position. The powder barrel is provided with a powder outlet. The powder injection rod cooperates with the inner wall of the powder barrel to define a first powder outlet channel in communication with the powder outlet in the first position. The powder injection rod cooperates with the inner wall of the powder barrel to define a second powder outlet channel in communication with the powder outlet in the second position. The powder outlet area of the second powder outlet channel is smaller than that of the first powder outlet channel. The driving mechanism is used for driving the powder injection rod to move and switch between the first position and the second position. The application aims to provide a powder injection equipment with high applicability.

The utility model relates to a blast furnace coal powder injection jar belongs to coal powder injection technical field, solve the technical problem that the gas direction is inconvenient to adjust when the coal powder injection at present, the blast furnace coal powder injection jar includes jar body, injection pipe, injection head and adjusting part, jar body is used for carrying out injection to coal powder, one end of injection pipe is linked with gas source, and the other end of injection pipe is linked with jar body, and the gas is passed into jar body, injection head is installed in the one end of injection pipe close to jar body, and injection head is located in jar body, adjusting part is rotatably installed in injection head, and adjusting part has the passage for the gas through between injection head, adjusting part rotates to adjust the passage position, and then to adjust the air direction through injection head. Therefore, the blast furnace coal powder injection jar changes the air direction of injection head to jar body, thereby realizing the coverage of the air direction to the larger range in jar body, to better satisfy the injection of coal powder in different positions.

The application discloses a powder injection molding mold with a deformation pre-compensation function and relates to the technical field of powder injection molding molds.The powder injection molding mold comprises a mold carrier, a guide slide rod, a slide plate, a lower molding assembly and an upper molding assembly.The lower molding assembly comprises a plurality of spliced lower mold plates, each of which is connected with an adjusting positioning cover one through an adjusting rod one.The upper molding assembly comprises a plurality of spliced upper mold plates, each of which is connected with an adjusting positioning cover two through an adjusting rod two.The adjusting positioning cover one and the adjusting positioning cover two are connected with an air inlet and air outlet flow control module through an air path with a control valve.The application can independently adjust the position of each mold plate according to the shrinkage of different parts of a part, realize non-uniform pre-compensation of a cavity, adapt to the non-uniform shrinkage of the part, greatly improve the size precision of the part, and simultaneously improve the feeding filling density through a vibration mechanism, and is suitable for high-precision batch production of powder injection molding parts with complex structures.

The utility model discloses a full -automatic press type powder forming machine, including carbon powder recovery structure, carbon powder recovery structure inside fixedly connected with the press forming structure, carbon powder recovery structure includes the hollow structure's frame body inside, and the fixedly connected with cavity box under frame body inside, carbon powder puts the fixedly connected with carbon powder placing box inside cavity box, and carbon powder placing box both sides through the opening of convenient press forming structure spare part through -going set's connecting hole, carbon powder placing box and cavity box all through the opening of convenient carbon powder injection's injection hole, and injection hole is connected through the matching plug, this full -automatic press type powder forming machine, through the carbon powder height of setting photoelectric sensor to carbon powder placing box inside is detected every moment, utilizes photoelectric sensor to carbon powder height to detect every moment not only avoids the empty material condition of carbon powder placing box inside to avoid second powder delivery pump no -load operation work condition.

The utility model provides a novel automobile electronic water pump with detachable impeller, through setting detachable impeller in the upper cavity part of pump cavity, compared with the impeller of integral moulding through powder injection in prior art, detachable impeller has higher flexibility and maintainability, when the impeller appears wear and tear or failure due to long -term use or other reasons, need not to replace whole water pump, only need to dismount and replace impeller part, greatly reduced maintenance cost and replacement difficulty, in addition, the buckle connection between impeller body and impeller shell not only is simple and quick to install, but also is convenient to dismount and replace, improves maintenance efficiency, this design makes automobile electronic water pump more reliable in the process of using, prolongs the service life of water pump, and the speed of impeller in automobile electronic water pump on the market is generally 2500-3000 revolutions per minute, therefore detachable impeller in the design will not cause the connection part to be loose or be damaged because of excessively high speed, guarantees the stable operation of water pump.

The utility model provides a kind of hot blast furnace coal powder's injection device, it is related to coal powder injection technology field, including air preheating pipe and fixed on its upper surface coal powder preheating pipe, air preheating pipe one end is equipped with fixed sleeve, fixed sleeve side surface is embedded with filter plate, fixed sleeve inside is provided with fixed assembly, fixed sleeve is fixed in air preheating pipe one end by fixed assembly.The hot blast furnace coal powder's injection device passes through second fan and passes into air preheating pipe in high-temperature waste gas, and the air preheating pipe inside intake pipe is preheated, to preheat external air, avoid because temperature reduces and influence combustion reaction speed, to improve the stability and efficiency of combustion, and utilize waste gas as heat source, realize air preheating while reducing heat energy loss, improve overall thermal efficiency, mix and spray after preheating outside air and coal powder respectively, can avoid the combustion instability caused by preheating uneven or temperature difference too large.

The application belongs to the technical field of medicine, and particularly relates to a ceftriaxone sodium powder injection and a preparation method thereof. The water-soluble vitamin E and L-cysteine are used to synergistically play the roles of antioxidation and anti-aggregation, and effectively inhibit the polymer generation and the aggregation phenomenon in the crystallization process. The mesoporous silica modified by chitosan is used as a drug carrier, the ordered drug is promoted to enter the mesoporous channel through the positive charge mediation, the efficient loading of the drug is realized, and the biocompatibility is improved. The supercritical anti-solvent crystallization technology is used, the drug is in-situ crystallized in the mesoporous channel to form a highly dispersed state, the specific surface area of the drug is significantly increased, and the ultrafast dissolution is realized. The ceftriaxone sodium powder injection prepared by the application has the excellent characteristics of fast dissolution speed, uniform particle size, no aggregation, good stability, high safety, and high drug loading efficiency.

The utility model belongs to the field of powder spraying metallurgy technique, disclose a kind of RH furnace pressure circulation powder spraying system, by immersion type injection lime powder in RH riser, improve RH furnace desulfurization capacity, promote molten steel purity;Reduce raw material consumption, improve metallurgical effect.It include refining ladle, RH furnace body and powder spraying tank;RH furnace body is located above refining ladle;The side of RH furnace body is equipped with booster inlet, booster inlet is connected with booster pump by pipeline, and gas pressurization is passed to RH furnace body by booster inlet;The other side of RH furnace body is equipped with powder spraying port, and powder spraying port is connected with powder spraying tank and booster gas source respectively by pipeline;Powder of powder spraying tank is carried out powder spraying operation to the inside of RH furnace body by powder spraying port, and booster gas source is used to provide conveying power for powder.

The present application relates to the field of powder injection molding, and particularly relates to a preparation method of refractory tungsten with uniform microporous structure. The preparation method mixes tungsten nanopowder with a binder to granulate, and then injection molds the treated powder to obtain a green body with uniform microporous structure; a sectional sintering method is used to pre-coarsen to control the uniformity of the structure and pores, and then further control the grain size and pore size, so that the prepared porous tungsten material has fine and uniformly distributed grain structure and pores, the porosity is 20%-50%, the average grain size is less than 1 mu m, the pore size is less than or equal to 0.5 mu m, and the variance is not more than 0.4. The method solves the problems of coarse grains, uneven pore size and pore distribution in the porous tungsten material prepared by the traditional method.

A kind of high furnace fuel injection fuel using red mud catalytic combustion and collaborative desulfurization and its preparation, injection method, the fuel consists of the following components by weight fraction: coal powder: 60~95 parts, red mud: 5~40 parts, grinding aid: 0~2 parts;Fe2O3 content in the red mud is 20wt%-50wt%, CaO content is 2wt%-15wt%, MgO content is 1wt%-8wt%, Al2O3 content is 10wt%-25wt%, SiO2 content is 5wt%-20wt%, the rest is impurity;The particle size of the fuel satisfies-200 mesh accounts for≥80%, moisture content≤2wt%.To solve the technical problems of low coal powder combustion efficiency, high unburned coal powder content, high sulfur emission control cost and the like in high furnace coal powder injection.

The utility model discloses a powder injection structure and fusion device, wherein, powder injection structure, include: the blanking pipeline is provided with the misplacement arrangement of the feeding port and the blanking port along the axial direction, and the blanking pipeline inside is formed with the chute that communicates with the feeding port and the blanking port, the communication pipeline is sealed intercommunication between one end and the blanking pipeline, and the other end of communication pipeline is the free end that can be relative to the axial movement of blanking pipeline, push rod is arranged in the communication pipeline, and one end of push rod is fixedly connected with the free end, and the other end extends to the chute, and forms the sliding fit with the chute, and at least one blanking hole is arranged on push rod, and drive mechanism is connected with the communication pipeline. Therefore, can make the whole powder injection process not to be interfered with fusion device vibration, improved the stability of powder injection and the accuracy of injection quantity, thereby guaranteeing the accuracy of fusion experiment data.

1. Name of the product in this design: Lyophilized piston (for dual-chamber powder injection formulations). 2. Application of this design: for lyophilization and sealing of dual-chamber powder injection formulations. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This utility model belongs to the field of inoculant production technology and discloses a powder injection and return device for inoculant production. It includes a furnace body, with a mounting plate bolted to the top of one side of the furnace body. A first mounting seat is mounted on one side of the top of the mounting plate, and a first sliding groove is provided on one side of the first mounting seat. A first slider is slidably mounted in the first sliding groove, and a second mounting seat is mounted on one side of the first slider. An injection tank is mounted on the top of the second mounting seat via a bracket, and a conveying pipe is installed at the bottom of the injection tank. An air pump is installed at one end of the conveying pipe. This device directly blows powder into the liquid inside the furnace body through the injection tank, conveying pipe, and air pump, avoiding direct contact between fine powder and air, reducing powder oxidation and burn-off, while maintaining the furnace condition unaffected. This reduces production and cleaning costs and improves inoculant production efficiency and product quality.

A kind of powder injection packaging equipment is pressed lid mechanism, effectively solve the problem that multiple power sources are prone to fit deviation;Including fixed plate, fixed plate is fixed with hydraulic cylinder, fixed plate bottom is spaced apart with connecting plate, connecting plate is provided with motor, the telescopic rod of hydraulic cylinder is fixedly connected with motor, the output shaft of motor is connected with sleeve, sleeve is telescopically provided with spinning mechanism, spinning mechanism includes the connecting block telescopically in sleeve, rotating plate is rotatably arranged at the bottom of connecting block, the outer side of sleeve is rotatably connected with multiple connecting rods, the outer side of connecting block is rotatably provided with multiple first pressing plate, second pressing plate is hinged at the end of first pressing plate, and the one end of second pressing plate is movably connected with connecting rod;The utility model discloses simple and ingenious structure, convenient to use, through the connection of connecting rod, first pressing plate and second pressing plate, realize the spinning of the lower end of aluminium cover, reduce the setting of power source, realize the coherent unity of action under the premise of energy saving, guarantee the smooth progress of powder injection packaging.

The application discloses a hydrogen-rich smelting blast furnace initial coal gas flow temperature field optimization method and system. The method comprises the following steps: controlling hydrogen-rich gas, coal powder and coke to be sequentially combusted in front of tuyere; regarding the front of the tuyere as an adiabatic environment, collecting blast furnace tuyere data; calculating the theoretical combustion temperature of the front of all tuyeres of the blast furnace; under the premise of ensuring the total coal powder injection amount, gradually reducing the coal powder injection amount of the hydrogen injection tuyere, and increasing the coal powder injection amount of the tuyere without hydrogen injection until the absolute error of the calculated theoretical combustion temperature T0 of the hydrogen injection tuyere and the theoretical combustion temperature T1 of the tuyere without hydrogen injection is less than the set error threshold. The method can effectively improve the uneven distribution of hydrogen cold-state injection of the initial gas flow of the blast furnace through analysis of the blast furnace tuyere data.

The present application relates to a kind of testosterone microcrystal, freeze-dried powder injection, suspension and its preparation method.The particle size range of testosterone microcrystal meets: D90≤20 μm.Testosterone microcrystal freeze-dried powder injection includes testosterone microcrystal, suspending agent and freeze-drying protective agent;The mass ratio of the suspending agent and the mass of the testosterone microcrystal meets (0.3-2):1.The particle size range of the testosterone microcrystal meets: D90≤20 μm.Testosterone microcrystal suspension includes water, testosterone microcrystal, suspending agent and freeze-drying protective agent;The concentration of the suspending agent is 0.3%-2%.The preparation of testosterone microcrystal prepared in the present application is short-acting preparation, has the advantages of small liver toxicity, dose accuracy and easy to use.

The application discloses a special mixing equipment for emulsification of spreadable cheese sauce and a preparation process thereof, relates to the technical field of emulsification preparation of cheese sauce, and comprises a tank body, a shearing emulsification head arranged in the tank body and a powder injection system. The tank body is provided with a temperature control system for heating or cooling materials in the tank. The application further comprises a liftable eccentric flow guide cylinder. In the application, the flow field is positioned by a barrier, and the intelligent closed-loop control of the barrier being broken by the flow field fundamentally solves the coupling problem of powder caking and circulation dead zones. The three-dimensional motion of the liftable eccentric flow guide cylinder reconstructs the macroscopic flow field, accurately guides the main fluid to the barrier area to form directional impact, the angle-adjustable nozzle accurately delivers the powder jet to the preset wetting front in front of the barrier in the form of pulses, the eccentric design of the bottom of the auxiliary stirring paddle and the partial disturbance of the side wall effectively prevent deposition and enhance local mixing, and the three forces are concentrated in the barrier area to realize active tracking and directional breaking of the rheological barrier.

A novel powder supply device for soft capsules includes a support frame and a laterally sliding dispensing mechanism. One end of the dispensing mechanism's sliding path is also equipped with a powder supply mechanism. The dispensing mechanism includes a slide frame with a cartridge on one side. The middle of the cartridge is hinged to the slide frame via a hinge block, and its rotation axis is horizontal. An axially sliding top plug is located inside the cartridge, and a dispensing motor is located at the bottom of the cartridge. The top plug is connected to the dispensing motor via a transmission rod. The dispensing mechanism and the powder supply mechanism work together to receive the powder. Through the connection between the dispensing mechanism and the powder supply device, and in conjunction with the lateral sliding, the dispensing mechanism can evenly add powder along the sliding direction, thus preventing powder accumulation in a single location and ensuring smooth soft capsule injection. Furthermore, the dispensing motor controls the movement of the top plug, ensuring more even powder supply through the cartridge.

The utility model relates to the technical field of medicine production equipment, concretely is automatic uncovering of powder injection medicine bottle and pour powder device, including dial mechanism, uncovering mechanism and bottle turning mechanism, the uncovering mechanism includes uncovering rotary knife, and the main part of uncovering rotary knife is disc structure, and at least one group of blade is arranged on the outer circular surface of disc structure, uncovering rotary knife connects rotary knife motor, dial mechanism sets up in the lower part of uncovering rotary knife, and dial mechanism can send the west Lin bottle of being unsealed to the lower part of uncovering rotary knife, and can send the west Lin bottle after unsealing to bottle turning mechanism. In the utility model, the west Lin bottle of being unsealed is removed aluminium cover rubber plug by uncovering rotary knife, then is sent to bottle turning mechanism and pours powder, the whole process is automatically operated and does not need manual operation, realizes automatic control, not only guarantees the security of staff, and can improve the overall operation efficiency and stability.