33results about How to "Reduce splash loss" patented technology

The invention discloses an asynchronous air-sweeping type flexible bionic retractable standing grain moving device. According to the device, a machine frame is located outside, bionic standing grain moving mechanisms are evenly distributed outside the machine frame in the radial direction, a fan mechanism is located inside the machine frame, a transmission mechanism is located at the left end of the machine frame, threaded holes are distributed in a base of the machine frame, each bionic standing grain moving mechanism is formed by a positioning bolt, a spring and a bionic standing grain moving plate, stretching and retracting of the bionic standing grain moving mechanisms are achieved through the springs, an air inlet is formed in front of a fan cover, an air outlet is formed behind the fan cover, a fan belt wheel is fixed on the left half axle through a flat key, a standing grain moving belt wheel is mounted on the outer ring of a bearing and is connected with a left baffle through a long bolt, and then the bionic standing grain moving mechanisms and the fan mechanism can rotate coaxially at different speeds. The device has the advantages that stand grain moving contact impact is small, the stand grain moving height and feeding depth are continuously adjustable, loss of grains of crops is small during stand grain moving, damage to the surfaces of the grains of crops is small, the structure is simple and compact, and overall efficiency of stand grain moving operation is high.

The invention provides a shock-excitation material mixing and filling device and a material mixing and filling method for spectral samples. The device includes a frame, a two-phase vibrating device, a material mixing and filling apparatus, and a control unit. The method includes the steps of: 1) placing ore powders into crucibles, which are buckled vertically, in the material mixing and filling apparatus, and performing rotational turning, eccentric vibration and vertical periodical shaking to achieve complete stirring and mixing of the multi-component ore powders; 2) through action of a tilt motor, overturning the crucibles buckled vertically, and with combination of rotation, eccentric vibration and vertical periodical shaking, filling cavities in carbon rods with the mixed ore powder in the crucibles; and 3) repeating the steps to complete mixing of the ore powders in multiple batches and filling of the materials in the carbon rods. The device has creative design and structure and high automation degree, greatly improves work efficiency of material mixing and filling and has advantages on improvement of spectral analysis precision and work efficiency.

An intermittent interception type two-way vibration cleaning device for grain, including an upper sieve mechanism, a frame, a transmission mechanism, a vibration mechanism and a lower sieve mechanism, the upper sieve mechanism is fixed above the frame, and the lower sieve mechanism is fixed below the frame , the transmission mechanism is fixed on the outside of both sides of the frame, the vibration mechanism is fixed on the inside of both sides of the frame; the interception sleeve is embedded in the inside of the limit sleeve, the vibration spring is fixed on the outside of the interception sleeve, and the vibration spring supports the limit sleeve It reciprocates in the vertical direction, the shoulder is located on the upper part of the intercepting sleeve, the base hole is located on the lower part of the intercepting sleeve, and the blocking shoulder is flush with the upper surface of the first fixed sieve plate to play the intercepting function, and the shoulder of the intercepting sleeve and the second movable When the sieve plate is flat, the interception function is turned off, and the reciprocating movement of the guide rod prompts the upper sieve mechanism and the lower sieve mechanism to reciprocate in the horizontal and vertical directions, driving the spring to buffer the vibration impact. The invention improves the working stability of the cleaning device and reduces the valley The particle cleaning loss rate and impurity rate.

The invention provides hot-rolled round steel for a high-carbon-manganese-chromium grinding ball. The hot-rolled round steel is prepared from the following components: 0.72 to 0.82 percent of C, 0.17to 0.35 percent of Si, 0.70 to 0.90 percent of Mn, 0.010 to 0.030 percent of P, 0.010 to 0.030 percent of S, 0.50 to 0.70 percent of C, 0.20 to 0.30 percent of In, 0.10 to 0.20 percent of Ag, 0.15 to0.25 percent of Cu, 0.080 to 0.100 percent of Ga, 0.20 to 0.26 percent of Ni, 0.10 to 0.14 percent of Zn, 0.14 to 0.16 percent of Sn and the balance of Fe and unavoidable impurities. The round steel provided by the invention contains relatively high elements including carbon, manganese, tin and the like and can be obtained by refining a casting-state structure of steel, so that the prepared grinding ball has relatively great rigidity; when an object with relatively great rigidity is ground, good wear resistance can be ensured; meanwhile, the round steel also contains the chromium element withrelatively high content, so that the round steel has a relatively strong corrosion-resisting capability and the round steel is suitable for being used in various fields for grinding.

The invention discloses an anti-water drops splashing technique of a cooling tower of vertical type flow force, which mainly includes the following steps that: A. a water retaining member is provided to make the upper section and the lower section of the body upright sections; the water retaining member is connected with a part bending backward and the middle part is an upright section; B. the surface of the body is provided with an insertion hole, and the other face is provide with a positioning hole plate corresponding with the insertion hole. The manufactured water retaining member of the cooling tower of vertical type flow force is arranged at the top of the cooling tower with simple assembly and easy installation and maintainance; As the five-folds water retaining design is adopted also with a hollow convex strip arranged, a better water way design is formed, which makes the tiny vapor and fog agglomerate into big water drops during flowing the winding path, and then fall back to the inside of the cooling tower, reducing the splashing loss of water drops; the invention has a high intensity and a stable structure performance with high promotiation value.

The invention discloses high-carbon and low-alloy steel for grinding balls. The steel comprises the following components, by mass percentage: 0.88-0.94% of C, 0.20-0.30% of Si, 0.90-1.00% of Mn, lessthan or equal to 0.025% of P, less than or equal to 0.025% of S, 0.50-0.60% of Cr, 0.010-0.050% of Ti, 0.20-0.30% of In, less than or equal to 0.25% of Cu, 0.080-0.100% of Ga, 0.20-0.26% of Ni, 0.10-0.14% of Zn, 0.14-0.16% of Sn and the balance Fe and inevitable impurities. The steel has the advantages that the production cost is relatively low, meanwhile, high-content carbon, manganese, tin, titanium and other elements are contained in the steel, so that the as-cast structure of the steel can be refined, and therefore the hardness of the grinding balls can be greatly improved, and good wear resistance of the grinding balls in the grinding process of an object with large hardness can be ensured; and in addition, high-content chromium is further contained in the steel, so that the grindingballs can also have relatively strong corrosion resistance, and therefore the grinding balls can be suitable for being used for grinding in a variety of fields.

The invention discloses an iron adding process-based medium-high silicon molten iron desilication method, and belongs to the technical field of molten iron pretreatment. The process of adding molten iron into a molten iron ladle by utilizing an iron mixing furnace/vehicle serves as molten iron desilication reaction time in a melting furnace; the potential energy of iron molten serves as stirring power of the melting furnace. A solid oxidizer and a slag-regulating agent in the same proportion as that of the iron flow of the iron mixing furnace/vehicle are added continuously to realize high-efficiency desilication. The method has the advantages that the burden of high-silicon molten iron in converter smelting is lightened; the cost of steel smelting is reduced; moreover, the process is simple; the operability is high; the equipment investment is low; the operating cost is low.

The invention discloses a method for modifying molten steel slag by using a double-molten-pool furnace. The method comprises the following steps that the double-molten-pool furnace is provided: a furnace body of the double-molten-pool furnace comprises two molten pools, the two molten pools are communicated through a furnace body connecting flue on the furnace body, a middle high-temperature flue is arranged between the two molten pools, one end of the middle high-temperature flue is connected with a powder receiving system, and the other end of the middle high-temperature flue is connected with one of the two molten pools through a flue gas guide switching valve; and the two molten pools are alternately used as an oxidation molten pool and a reduction molten pool by switching the flue gas guide switching valve, and comprehensive treatment of steel slag, zinc-containing fly ash and paragenic ore difficult to dissociate is achieved through the oxidation molten pool and the reduction molten pool. According to the method, steel slag can be modified into iron-making reducing slag to serve as a concrete admixture to be widely utilized, alkali metal harmful to smelting in fly ash of a steel mill can be removed, and meanwhile, a melting and dissociation method for paragenetic ore difficult to dissociate in the nature is provided.

The invention relates to high carbon, manganese and chromium hot rolled round steel for grinding balls. The high carbon, manganese and chromium hot rolled round steel for grinding balls is prepared from the following components in percentage by mass: 0.72-0.82% of C, 0.17-0.35% of Si, 0.70-0.90% of Mn, 0.010-0.030% of P, 0.010-0.030% of S, 0.50-0.70% of Cr, 0.10-0.20% of In, 0.20-0.30% of Ag, 0.15-0.25% of Cu, 0.12-0.18% of Ga and the balance of Fe and inevitable impurities. The round steel contains relatively more elements such as carbon and manganese, so that the grinding balls prepared therefrom have relatively great hardness, and good wear resistance can be ensured when objects with relatively great grinding hardness are ground; meanwhile, the round steel also contains relatively morechromium, so that the round steel has a relatively good ability of resisting corrosion, and the round steel is suitable for being used to grind in various fields.

The invention discloses a portable large-flow liquid type biological aerosol cyclone sampler which comprises a large-flow fan, a cyclone sampling tube, a sampling centrifugal tube and a power supply.The main body of the cyclone sampling tube is cylindrical, and the lower part of the cyclone sampling tube is conical funnel-shaped; an air inlet pipe is arranged at the upper part of the cyclone sampling tube; a filter screen is arranged at the outer end of the air inlet pipe; the large-flow fan is arranged at the top end of the cyclone sampling tube; the sampling centrifugal tube is connected with the bottom end of the cyclone sampling tube, and liquid sampling media are contained in the sampling centrifugal tube. Portable and efficient large-flow air collection is achieved through the large-flow fan, and meanwhile, the life activity of microorganism particles is guaranteed through the liquid sampling medium; secondary aerosolization and sampling liquid splashing losses are reduced; subsequent qualitative and quantitative analysis of biological aerosol is facilitated; and the sampler has a good application prospect in biological aerosol research.

The invention discloses a process method for converter smelting of weathering resistant steel. The process comprises the following steps: 1) after smelting carbon steel by a converter, conveying steel slag treated by hot slag or drum slag as a slag auxiliary to an overhead bunker of the converter for later use, wherein the steel slag of the converter comprises the following chemical components in percentage by weight: 56% of CaO, 18% of SiO2, 0.3% of P2O5, 12% of TFe, 9% of MgO and 4.7% of other components; 2) using carbon-containing magnesium balls produced by the company Henglongxiang, wherein the magnesium balls comprise the following chemical components in percentage by weight: 15% of CaO, 12% of SiO2, 55% of MgO and 18% of C; 3) smelting by the converter according to a normal smelting program: namely, after adding molten iron steel scrap and before blowing by an oxygen lance, adding 60kg/ton steel of abandoned cold slag of the converter, and adding 3kg/ton steel of magnesium balls after decarburizing reaction to inhibit phosphorus in a molten bath from being oxidized into slag; and 4) before converter blowing end point, adding 5kg/ton steel of magnesium balls to press the slag, tapping after 3 minutes, and reducing phosphate in steel slag by using intermediate carbon by using the magnesium balls, so that phosphate enters molten steel.

The invention relates to a drive assembly for a drive train of a motor vehicle, comprising: a transmission (3); a clutch (5); an actuator (8) for controlling the clutch (5), wherein the actuator (8) comprises an actuating element (9) acting on the clutch (5) to set a transmittable torque; a housing (10) having a transmission receiving chamber (13), a reservoir (14) and a clutch receiving chamber (15), in which lubricant is delivered from at least one of the transmission receiving chamber (13) and the clutch receiving chamber (15) into the reservoir (14) due to rotational movement during operation; a valve (19) for controlling the flow of lubricant from the reservoir (14) to the transmission receiving chamber (13) and/or to the clutch receiving chamber (15), the valve (19) being operativelyconnected in a manner to the actuating element (9) of the actuator (8), the valve (19) opens when the clutch (5) is actuated and closes when the clutch (5) is not actuated.

The invention relates to the technical field of industrial metallurgical smelting equipment, in particular to furnace heat exchange type electric arc metallurgy equipment for smelting various special alloys. The equipment comprises an air compressor (1), a mixing cylinder (2), a feed hopper (3), a main pipe (4), hollow electrodes (5), an electric furnace (6), electric arc areas (7), branch pipes (8) and a feeding pipe (9). The equipment is characterized in that one end of the mixing cylinder (2) is fixedly connected with a smelting device through the main pipe (4) while the other end is connected with one end of the air compressor (1) fixedly, one side of the mixing cylinder (2) is fixedly connected with the feed hopper (3) through the feeding pipe (9), the smelting device comprises the hollow electrodes (5), the electric furnace (6), the electric arc areas (7) and the branch pipes (8), and one end of each hollow electrode (5) is in through connection with the main pipe (4) through the corresponding branch pipe (8).