33results about How to "Extended crushing time" patented technology

The invention features ophthalmic formulations of mucin polypeptides to treat or prevent dry eye.

The invention belongs to the technical field of solid fuel utilization, and discloses a gasification reactor suitable for wide screening raw materials, which includes a reactor body, and the reactor body includes a first reaction chamber, a second reaction chamber and a third reaction chamber communicated with each other. Reaction chamber; the second reaction chamber and the third reaction chamber are located below the first reaction chamber, and the third reaction chamber is sheathed on the periphery of the second reaction chamber; the side wall of the first reaction chamber is provided with a first air vent for introducing gas The oxidizing agent makes the small particle raw materials in the first reaction chamber fluidized and undergoes gasification reaction; the second vent is provided at the bottom of the second reaction chamber, which is used to pass in the oxidant to make the particle bed accumulated in the second reaction chamber undergo oxidation reaction ; The bottom of the third reaction chamber is provided with a third vent, which is used to feed gasification agent so that the particles in the third reaction chamber are fluidized and gasification reaction occurs. The reactor of the invention combines the characteristics of the fixed bed and the fluidized bed to realize high-efficiency gasification of wide-screened solid fuels, which is helpful for the popularization and application of gasification technology.

The invention belongs to the technical field of metallurgical materials, and specifically relates to a preparation process of a molybdenum-niobium alloy sputtering target, which includes the steps of powder making, molding, vacuum sintering and mechanical processing. The powder making includes the following steps: molybdenum powder and niobium powder Load it into a ball mill according to a weight ratio of 6-10:1, then add a process control agent and zirconia grinding balls, perform ball milling under argon protection, sieve, and separate to obtain a molybdenum-niobium alloy composite powder; the process control The weight of agent and zirconia grinding ball is respectively 0.01-0.05 times and 5-20 times of the total weight of molybdenum powder and niobium powder; described process control agent is zinc stearate, palmitic acid, ethyl stearate, polyester One or more of vinyl alcohol and stearic acid. The molybdenum-niobium alloy sputtering target obtained in the present invention has a single phase structure, uniform structure without holes, average grain size of 40-65 μm, density ≥ 9.85g / cm3, excellent performance, and can be widely used in fields such as flat-panel displays .

The invention relates to a crushing device, in particular to the uniform crushing device for tea leaves. The technical problem to be solved is to provide a uniform crushing device for the tea leaves.The uniform crushing device comprises a crusher body, first mesh plates, a feed hopper, a first valve, a crushing mechanism and racks; air blowing devices are arranged on the racks on the left side and the right side, and the air blowing device is connected with the bottom of the crusher body; the crusher body is arranged on the tops of the racks on the left side and the right side, and the feed hopper is arranged on the right side of the top of the crusher body; the first valve is arranged on the feed hopper, and the crushing mechanism is arranged inside the crusher body; a discharging pipe is arranged in the middle of the bottom of the crusher body, and a second valve is arranged on the discharging pipe. According to the uniform crushing device for the tea leaves, the effects of being small in crushing degree difference and high in uniformity are achieved.

The present invention is applicable to the technical field of seasoning processing, and provides a powdered seasoning pulverization and preparation device and a casing. The device further comprises: a rounded table bucket, which is movably arranged in the casing; a pulverizing component is installed in the rounded table bucket , the pulverizing assembly includes: a helical blade fixed on the periphery of the central shaft, the central shaft is driven to rotate by a power member installed on the casing, the central shaft and the rounding table bucket are concentrically arranged, and the helical radius of the helical blade is The radius of the rounded table bucket increases in sequence, and a crushing channel is formed between the inner wall of the rounded table bucket and the central axis. The powdery seasoning preparation device provided by the embodiment of the present invention has good crushing and The drying effect simplifies the production process, and can effectively prevent the jamming phenomenon in the process of crushing and preparing crushing. The design is novel and worthy of promotion.

The invention discloses a two-stage crusher. The two-stage crusher comprises a machine shell. A first crushing cavity and a second crushing cavity are formed in the machine shell. The first crushing cavity and the second crushing cavity are communicated and distributed in the two sides of the machine shell. The first crushing cavity is shorter than the second crushing cavity. A feeding inlet is formed in the first crushing cavity. A discharging outlet is formed in the second crushing cavity. A first main shaft is arranged in the first crushing cavity. A first rotor is arranged on the first main shaft. The first rotor is provided with a plate hammer or / and a hammerhead. A second main shaft is arranged in the second crushing cavity. A second rotor is arranged on the second main shaft. A sieve plate is arranged below the second rotor. The second rotor is provided with a plate hammer or / and a hammerhead. At least one of the plate hammer or / and the hammerhead arranged on the second rotor is a material moving plate hammer or / and a material moving hammerhead having an axial material moving function. The two-stage crusher can be used for crushing materials with large granularities and is high in crushing ratio, not prone to blockage and even in product granularity, and products which are high in yield and small in granularity can also be obtained.

The invention relates to a cotton separating device, which comprises a shell and a bracket, wherein the bracket is provided with a motor used for driving a working mechanism in the shell; the shell is provided with a feed inlet and a cotton outlet and is a cylindrical barrel; the bracket is arranged below the shell and supports the barrel; the upper surface of the shell is provided with a circular charging opening, the upper part of the side wall of the shell is provided with a fragment outlet, and the lower part of the upper side wall of the shell is provided with the cotton outlet at a position corresponding to the fragment outlet; and the bracket is fixedly provided with the motor which is connected with the lower surface of the shell via a flange and a fixed lead screw, the output shaft of the motor penetrates through the central part of the lower surface of the shell upwards to be fixedly connected with the center shaft of vanes, and the multiple vanes are arranged in an axisymmetric manner. The cotton separating machine in the invention has small volume and convenient use, and is quite suitable for small-scaled cotton growers to use.

The invention belongs to the technical field of garbage crushing, and discloses a screw conveying crushing device for garbage treatment, in order to solve the problem in the prior art that the blades used for cutting flexible garbage wound on a rotating shaft are easily damaged. The present invention includes a machine body, a feeding bin is installed on the top of the body, a crushing cylinder communicated with the feeding bin is installed under the feeding bin, a rotating shaft is installed in the crushing drum, and a rotating shaft is installed on the rotating shaft. The screw blade, the body is equipped with a driving device for driving the rotating shaft to rotate, the screw blade includes at least two groups of screw blade units, and the at least two groups of screw blade units are installed on the rotating shaft in the crushing cylinder at equal intervals Peripherally, each group of helical blade units includes at least two cutting blades, and a cutting device for cutting flexible materials wound on the rotating shaft is installed on the rotating shaft between adjacent helical blade units.

The invention discloses a modern aquaculture fish feed crushing and throwing equipment, which includes a frame, the top end surface of the frame is provided with a lifting cavity, and a sliding device is installed in the lifting cavity to control the up and down movement through a lifting drive device. The top of the lifting plate is rotated by a rotating shaft to install a crushing body. The invention has a simple structure and is easy to operate. The fish feed is crushed by the rotation of the crushing arm and the shaking of the shaking plate up and down, thereby effectively increasing the crushing efficiency of the fish feed , to save time for crushing fish feed, by starting the lifting motor, the crushing machine body rises until the throwing hole extends out of the lifting cavity, at this time, the height of the throwing hole is increased, and the throwing range is further improved, and the crushing body can rotate 360°, which can be used in a wide range For throwing fish feed, this equipment solves the cumbersome problem of manual throwing and throwing of feed in the traditional technology, and speeds up the crushing time of fish feed.

The invention relates to a cement shell breaking device and a concrete production system, and belongs to the technical field of construction engineering machinery. The cement shell breaking device andthe concrete production system solve the problem of low cement utilization rate in the existing concrete production process. The cement shell breaking device comprises a bucket body, wherein a rotating shaft is arranged inside the bucket body, and a motor is connected to one end of the rotating shaft; at least one group of cutting and grinding cutter assemblies are arranged in the bucket body, the cutting and grinding cutter assemblies comprise fixed blades and rotating blades, one ends of the fixed blades are fixedly connected to the inner wall of the bucket body, and one ends of the rotating blades are fixedly connected to the outer peripheral surface of the rotating shaft; and the front projection of the fixed blades and the rotating blades in the axial direction of the bucket body isprovided with a coincident portion. The concrete production system comprises the cement shell breaking device. The cement shell breaking device and the concrete production system can be used for cement shell breaking and concrete production in the construction process.

The invention discloses a method for measuring and evaluating the high-temperature performance of lump coal in smelting reduction ironmaking, comprising: weighing a preset mass m 1 The lump coal sample, the average particle size of the lump coal sample is d 0 ; Take the lump coal sample at 100%N 2 Heat up and keep warm under the atmosphere; put the lump coal sample in 20% CO 2 +80%N 2 Under the atmosphere, heat up to 700 ℃ ~ 850 ℃ and keep it warm; put the lump coal sample in 20% CO 2 +80%N 2 The temperature was raised to 1100°C under the atmosphere, and then the atmosphere was switched to 100% CO 2 ;Calculated to obtain lump coal reactivity C I ; Measure the particle size distribution of the lump coal sample after the reaction under different input power W, and calculate the average particle size d after the reaction f ; Take the abscissa as the abscissa and the input power W as the ordinate to perform linear fitting and plot, and calculate the fracture coefficient of the lump coal sample according to the slope k of the fitted line. The evaluation result of the method of the present invention is more objective and true.