62results about How to "Improve blending efficiency" patented technology

The invention discloses a pre-whirling type pintle injector applied to a double-component liquid propellant rocket engine. The pre-whirling type pintle injector applied to the double-component liquidpropellant rocket engine comprises a center rod, an inner nozzle, an outer nozzle and a connecting ring, all of which are rotation bodies. The inner nozzle coaxially sleeves the center rod, and a cavity for conveying fuel is formed by the inner nozzle and the center rod. The outer nozzle coaxially sleeves the outer nozzle, a cavity for conveying an oxidizing agent is formed by the outer nozzle andthe inner nozzle, and the connecting ring coaxially sleeves the outer nozzle. Pre-whirling treatment is conducted before oxidizing agent spraying-out, and the problem that a conventional pintle injector is not high in effective mixing efficiency is effectively solved; meanwhile, through the arrangement of two rows of fuel direct flow injection holes, cooling to a liquid film on the wall face of athrust chamber through propellant is effectively achieved; and the performance and the reliability of the double-component liquid propellant rocket engine can be obviously improved.

The invention belongs to the technical field of aviation and space, and particularly relates to a high pressure annular jet pump suitable for a pumping pressure type supply system. The high pressure annular jet pump comprises an inlet section pipe, a mixing section pipe, a throat pipe, a diffusion section pipe and an outlet section pipe which are sequentially arranged in the flowing direction of main fluid. The high pressure annular jet pump is characterized by further comprising step section pipes which are sequentially arranged between the inlet section pipe and the mixing section pipe; each step section pipe comprises a convergence section pipe and a straight section pipe; each straight section pipe is provided with a spraying nozzle for providing high pressure fluid. The high pressure annular jet pump is compact in structure, light in weight, good in anti-cavitation performance and capable of meeting the requirement for normal work under the working conditions of high rotating speed and low inlet pressure.

The invention discloses a method for preparing thermoplastic vulcanized rubber and provides technology for preparing the thermoplastic vulcanized rubber by only using common rubber and plastic equipment. The common rubber and plastic equipment comprises a common rubber kneading machine and a heating temperature control system thereof, an open mill, a plastic crusher and a plastic extruder, wherein the temperature range of the heating temperature control system of the common rubber kneading machine is controlled to be between 100 and 220 DEG C; the blending process of the thermoplastic vulcanized rubber kneading machine comprises the following steps of: firstly pre-preparing rubber mixing glue; then blending the rubber mixing glue with the rubber kneading machine; and adding the mixture bysteps when the using amount of a softening agent or plastic is over 25 percent of the total capacity of mixing. The method creates a precedent of preparing the thermoplastic vulcanized rubber by using the common rubber and plastic equipment. The properties such as tensile strength, tear strength, dispersion, extrusion appearance and the like of the prepared thermoplastic vulcanized rubber are obvious better than those of the thermoplastic vulcanized rubber prepared by the prior art. Meanwhile, the method reduces equipment investment and production cost for TPV manufacturers.

The invention discloses a finished product cigarette tobacco blending method in a grouped processing mode. The method comprises a step of selecting 9 passes respectively in different measurement ranges to carry out a blending procedure according to different usage amount of cigarette tobaccos, expanded cigarette tobaccos, cut stems, slice cigarette tobaccos and recycled cigarette tobaccos. The invention also discloses blending equipment for implementing the finished product cigarette tobacco blending method. According to the finished product cigarette tobacco blending method in the grouped processing mode, different types of cigarette tobaccos are distributed to different passes so as to meet grouped processing demands; in addition, the passes of the cut stems and the slice cigarette tobaccos are added, so that the interval of finished product cigarette tobacco blending proportion and the blending efficiency are improved.

The invention discloses specially-shaped mixing holes for adjusting outlet temperature distribution of a combustion chamber, and belongs to the field of combustion of gas turbines. The specially-shaped mixing holes are formed in the inner ring wall surface and the outer ring wall surface of a flame tube of the combustion chamber correspondingly; the specially-shaped mixing holes divide the wall surface of the flame tube into a flame tube front section and a flame tube back section; the specially-shaped mixing holes are evenly distributed in the circumferential direction of the wall surface ofthe flame tube to form mixing jet flows evenly distributed in the circumferential direction, the penetration depth of the mixing jet flows is increased, the contact area of mixing cold air and high-temperature main stream gas is increased, the mixing effect is improved, and the outlet temperature distribution quality of the combustion chamber is improved; the effect of adjusting outlet temperaturedistribution of the combustion chamber is achieved by changing the jet flow penetration depths, the jet flow circumferential expansion angles and the jet flow directions of the mixing holes; and outlet temperature distribution of the combustion chamber is adjusted, so that the temperature quality of an inlet of a turbine is improved, the service life of the turbine is prolonged, and the heat-proof design difficulty of the turbine is reduced.

The invention discloses a blowing multi-cabin cotton mixing machine which comprises a cotton feeding channel, a cotton feeding roller, a cotton feeding fan, a first cotton mixing cabin, a second cotton mixing cabin, a swinging valve, an indicator and a cotton discharging channel, wherein the swinging valve is arranged on the lower part of the first cotton mixing cabin; the indicator is arranged above the swinging valve; the first cotton mixing cabin is communicated with the bottom of the second cotton mixing cabin; the first cotton mixing cabin comprises a first cotton feeding valve, a first cotton mixing screw arranged on the lower part of the first cotton feeding valve, two first rollers and a first beater arranged on the lower part of the first cotton mixing cabin; the second cotton mixing cabin comprises a second cotton feeding valve, a second cotton mixing screw arranged on the lower part of the second cotton feeding valve, two second rollers and a second beater arranged on the lower part of the second cotton mixing cabin; a first cotton mixing stab is arranged on the first cotton mixing screw; a second cotton mixing stab is arranged on the second cotton mixing screw. The blowing multi-cabin cotton mixing machine provided by the invention can uniformly mix the cotton products with different densities and the cotton mixing efficiency of the cotton mixing machine is high.

The invention relates to the technical field of gas turbines, and discloses a dual-fuel nozzle structure of a gas turbine. The dual-fuel nozzle structure of the gas turbine comprises a nozzle body, a medium-low heat value fuel gas whirlcone, a natural gas whirlcone and an end face whirlcone. The nozzle body comprises a slightly-blowing air barrel, a natural gas barrel, a nozzle air barrel and a medium-low heat value fuel gas barrel with the inner diameters being sequentially increased, and the barrels are isolated from one another. The end face whirlcone is arranged on the outlet end face of the nozzle air barrel. The natural gas whirlcone is arranged on the inner side wall of the natural gas barrel. The medium-low heat value fuel gas whirlcone is arranged on the inner side wall of the outlet end of the medium-low heat value fuel gas barrel, the medium-low heat value fuel gas whirlcone comprises a plurality of blades, and the blades are connected with the inner side wall of the medium-low heat value fuel gas barrel and the outer side wall of the nozzle air barrel. Each blade is provided with an air channel, and the air channels are communicated with the nozzle air barrel and an outside air flow channel of the medium-low heat value fuel gas barrel. An end face cover plate is arranged on the outlet end face of the slightly-blowing air barrel, and the end face cover plate is provided with a plurality of slightly-blowing air holes.

The invention discloses a coal blending combustion method, device and equipment and a medium. The method comprises the steps that a relation model of coal quality information and combustion state datais trained through historical coal quality information and historical combustion state data; setting a plurality of different coal blending proportions according to the real-time coal piling information at the current moment, and calculating corresponding target coal quality information according to the coal quality parameters of different coal types; inputting the target coal quality informationinto a relation model to determine corresponding target combustion state data; respectively updating the real-time coal piling information by utilizing the blending proportion of each coal type, andcontinuously setting the blending proportion of the coal types for cyclic calculation; and when the circulation condition meets a preset condition, determining an actual coal blending proportion corresponding to each stage in the coal blending combustion process according to each target combustion state data in the circulation process. According to the method, the coal blending combustion efficiency can be improved, and the operation cost is reduced.

The present invention relates to one kind of rotary oil-jetting mixer. The mixer has a pedestal, an inner rotary sleeve on the pedestal, a rotating drum fixed onto the inner sleeve, a reduction box with ring gear fastened to the top of the rotating drum and meshed to last outer gear and initial gear on the upper end of the spindle, an axial flow turbine in the lower end of the spindle, and upper nozzles and lower nozzles communicated to the inner cavity and on the outer wall of the rotating drum. The present invention drives the nozzles to rotate with the liquid flow to spray out oil and other material and to form eddy diffusion in high mixing efficiency and without dead zone.

The invention discloses a raw cotton mixing device capable of effectively preventing raw cotton from being accumulated to add. The raw cotton mixing device comprises a mixing box body, support legs and a vertical plate, wherein the vertical plate is arranged at one side of the mixing box body; a feeding opening is formed in the top part of the mixing box body; a roller group is arranged in the mixing box body; a drive device is arranged at one end of the roller group; the roller group comprises a first roller and a second roller, which are arranged in parallel; rolling teeth are arranged on the first roller and the second roller; a support rod is arranged on the inner wall of one side of the mixing box body; a motor is arranged at one end of the support rod; a propeller is arranged at an output end of the motor; a discharge opening is formed in the bottom part of the mixing box body; one side of the discharge opening is hinged with a cover board; a power distribution box is arranged at one side of the drive device; the motor and the drive device are electrically connected to the power distribution box; and the raw cotton at the feeding opening is rotated into the mixing box body little by little by the propeller, so that the raw cotton is prevented from being accumulated to add to the mixing box body; and the mixing efficiency and quality are improved.

The invention discloses a high-efficiency compact type mixer with an asymmetric blade grid structure. The high-efficiency compact type mixer comprises a blending cavity and multi-channel and multi-direction inlets communicating with the blending cavity, wherein the asymmetric blade grid structure is distributed in the blending cavity, and an outlet of the blending cavity communicates with a first-stage sudden contraction section and a second-stage sudden contraction section in sequence. By sufficient utilization of multi-channel and multi-direction incoming flow conditions, two streams of blended gas are increased to be multiple streams, and the engineering application is wider; the asymmetric blade grid structure is added to the blending cavity, the turbulence intensity in the gas flow cavity is increased, and mass and heat transfer capacities among multiple streams of gas flow are improved; and the two stages of sudden contraction sections are used for performing rectification, scaleof turbulence is rapidly reduced in short distance, uniformly mixed fluid is obtained, follow-up work failure caused by too large scale of turbulence and non-uniform speed of the blended gas flow isavoided, and therefore, the use requirement of synchronous good mixing of multiple streams of gas flow in short distance and in compact space is met.

The application provides a device for fiber blending. The device comprises a yarn frame, a parallel yarn arrangement device and an electrostatic spinning system. The device is improved in that the fiber blending course is completed through an electrostatic spinning manner; and yarn blending of micron-grade reinforced fibers and nano-grade thermoplastic fibers can be achieved. In comparison with the prior art, the device for the fiber blending of the reinforced fibers and the thermoplastic nano fibers provided by the application has the advantages that the structure is simple; operations are easily; and the efficiency of the fiber blending of the thermoplastic nano fibers and the reinforced fibers is greatly increased.

The invention relates to a lobe-shaped crest for an inner beveled or fan-shaped treatment lobe spray pipe. The part, behind the cross section, of an outer lobe of the inner beveled or fan-shaped treatment spray pipe is cut off through the cross section perpendicular to the axis of the spray pipe, then lobe-shaped spoilers extend out of a new trailing edge formed through the cutting, and lobe-shaped wave crests are formed, and the lobe-shaped wave crests are composed of small wave crests on the two sides, small wave troughs in the middles and two small side walls connecting the small wave crests and the small wave troughs. The lobe-shaped wave crest has the advantages and beneficial effects that the lobe spray pipe with lobe-shaped crests is adopted, and the mixing efficiency is high under the conditions of injection air intake and stamping air intake.

A vertical water body mixing device for improving water quality of a eutrophication water temperature stratification reservoir comprises a main body pipe and two balance water tanks connected to the two ends of the outer side of the main body pipe respectively, wherein a balance weight steel ball capable of moving left and right is arranged in the middle space in the main body pipe; a left electromagnet and a right electromagnet which are used for attracting the counterweight steel ball to move left and right are symmetrically arranged at the two ends in the main body pipe respectively; and the left electromagnet and the right electromagnet are connected through a cable to a control circuit which can enable the left electromagnet and the right electromagnet to generate attraction to the counterweight steel ball at different time. The device has the advantages of being simple in structure, small in size, easy to transport, small in energy loss, large in action range, high in maneuverability, high in mixing efficiency, economical, efficient, capable of solving the problem of reservoir eutrophication and the like, and through hydrodynamic disturbance, mechanical mixing is carried out near a thermocline of a layered water body to increase vertical hydrodynamic turbulent fluctuation, water body internal waves can be induced to be generated by repeatedly penetrating through the thermocline, and water body layering is further relieved.

The invention discloses an oil sludge and coal co-combustion device and process, and belongs to the technical field of thermal power plant equipment. According to the oil sludge and coal co-combustiondevice and process, a combustion boiler, a stirring and mixing assembly, a smashing assembly, a lifting and conveying assembly and a co-combustion entering assemblies are included, and the bottom ofthe stirring and mixing assembly is connected to the combustion boiler. The upper end of the stirring and mixing assembly is connected with the lifting and conveying assembly, the side face of the stirring and mixing assembly is connected to the smashing assembly, and the co-combustion entering assemblies are arranged on the two sides of the smashing assembly and each comprises an oil sludge inletpiece and a coal inlet piece. According to the oil sludge and coal co-combustion device and process, uniform mixing of co-combustion can be guaranteed, meanwhile, a mixture is sorted, it is guaranteed that particles of the mixture are refined and enter the combustion boiler to be combusted, the combustion efficiency is improved, meanwhile, sorting is conducted twice through a vibration motor, fine particles are fully sorted, the situation that too many mixture particles enter a smashing box is avoided, and the co-combustion efficiency is improved.

A method and device for producing high quality alcohol beverages, including liquor, cordial, tincture, whiskey, cognac, brandy, vodka, rum, gin, wine, cocktail, etc., is based on the action of hydrodynamic cavitation treatment of components of alcohol beverages. The fluid flow moves at a high rate through a multi-stage blending hydrodynamic device and multi-stage cavitation device to generate hydrodynamic cavitation features in the fluid flow. The cavitation features generate changes in the velocity, pressure, temperature, chemical composition and physical properties of the liquid. Hydrodynamic cavitation processing provides effective blending of components and homogenization of alcoholic beverage, improves its organoleptic qualities.