31results about How to "Reduce cleaning losses" patented technology

The invention discloses a transverse crack control method of high nitrogen steel continuous casting plate billet angle containing vanadium, the method can not only effectively eliminate transverse crack defect of the continuous casting billet surface and skin inferior angle, but also can eliminate the continuous casting billet surface longitudinal crack and surface transverse crack defect. The method synthetically applies following technique measures: presetting the mold cooling water amount, the wide face cooling water amount is 3000-30500 L/min, the narrow face cooling water amount is set to 360-365 L/min; improving casting pulling rate, the casting pulling rate is stabilized in 0.8-1.5 m/min, the vibration frequency is 140-210 Hz; after spruing the casting pulling rate, quickly putting casting powder into the mold, the alkalinity of the casting powder is 1.0-1.40, the melting point is 1100-1160 DEG C, when at 1300 DEG C, the viscosity is 0.10-0.40 Pa.s; reducing the second cool segment casting billet cooling water amount, and controlling the continuous casting ratio water amount in 0.55-0.60 L/kg by static or dynamic adjusting method.

The present invention discloses a straight-curved type casting machine low-alloy steel slab continuous casting full-rolling section narrow face cooling method, and is aimed at solving the problem of that on the casting blank surface corner portion of low-alloy steel the transverse crack can be easily produced. Said invention belongs to the field of metal continuous casting blank cooling and surface quality control technology. Said method is characterized by that in the full-rolling section of continuous casting straight-curved type casting machine slab said invention utilizes the nozzles which are symmetrically mounted at left side and right side of casting blank pouring direction to cool the narrow face of said casting blank, and adopts rectangular nozzles to symmetrically and simultaneously cool the narrow faces of left and right two sides of casting blank. Said invention also discloses a kind of rectangular nozzle for said method, the water outlet hole of its sprayer is a hole with rectangular section. Said invention can reduce casting blank cooling strength of full-rolling section under the crystallizer and can improve casting blank cooling uniformity, so that it can eliminate casting blank surface corner portion transverse crack defect of continuously-cast high-strength low-alloy steel whose steel quality is P510L, P590L, J55 and X52, etc.

The invention discloses a net-shaped crack control method of high nitrogen and high strength weathering steel continuous casting billet containing vanadium, the method can not only effectively eliminate net-shaped crack of the continuous casting billet, but also can eliminate the continuous casting billet surface longitudinal crack and surface transverse crack defect. The method synthetically applies following technique measures: presetting cooling water amount of the mold wide face to 2485-2515 L/min, the narrow face cooling water amount is set to 304-306 L/min; the casting pulling rate is stabilized in 0.8-1.0 m/min, the billet casing surface temperature of the casting billet out of the mold lower end is increased to 1050-1120 DEG C, the vibration frequency is 110-130 Hz; reducing Cao mixing amount in the casting powder, the alkalinity of the casting powder is 0.95-1.20, the melting point is 1080-1120 DEG C, when at 1300 DEG C, the viscosity is 0.2-0.5 Pa.s; reducing the second cool segment casting billet cooling water amount, and controlling the continuous casting ratio water amount in 0.60-0.65 L/kg by static or dynamic adjusting method.

The invention discloses a cleaning system and a combined grain harvester adopting the cleaning system. A cyclone separation cylinder of the cleaning system comprises a cylinder body; the middle section of the cylinder body is a cylindrical section, and the upper and lower sections are cone sections; the upper end of the cylinder body is communicated with a gettering fan, and the cylindrical section is communicated with a winnower through a separation pipe; the side wall of the separation pipe, which is far from the axis of the cylinder body, is raised from the wall of the cylindrical section of the cylinder body; and ventilation holes are distributed at intervals on the side wall of the lower cone section of the cylinder body. The cleaning system with the structure ensures that the materials to be cleaned is far from the axis of the cylinder body as much as possible when entering the cyclone separation cylinder so that the cleaning loss can be reduced without increasing the diameter of the cylinder body. In addition, the air entering the lower cone section of the cylinder body from the ventilation holes forms an air cushion layer on the inner wall of the lower cone section so that part of the light impurities entered the lower cone section suspends under the action of the air cushion layer, is sucked out by the gattering fan and cannot block the lower cone section hereby.

A blueberry cleaning device for preparation of blueberry fruit wine comprises a cleaning tank, an exhaust valve, a temperature sensor, an upper cover, gas spray nozzles, gas spray pipes, a filter screen, a connecting pipe, a heater, a drain port, a solenoid valve, a gas cylinder, a controller, an equipment box and an operation display, wherein the upper cover is arranged right above the cleaning tank; the exhaust valve is arranged at the upper part of the cleaning tank; the filter screen is arranged in the center in the cleaning tank; the equipment box is arranged on the lateral side of the cleaning tank; the gas cylinder is arranged in the equipment box; one end of the connecting pipe is connected with the gas cylinder, and the other end extends into the inner lower part of the cleaning tank; the solenoid valve is arranged in the position, close to the gas cylinder, of the connecting pipe; one end of each gas spray pipe is connected with the connecting pipe, and the corresponding gasspray nozzle is arranged at the other end; the heater is arranged in the bottom of the cleaning tank; the drain port is formed in the lower part of the cleaning tank. The blueberry cleaning device forpreparation of the blueberry fruit wine is simple in structure, collision and breaking in a blueberry cleaning process can be more reduced, cleaning loss of blueberries is reduced, preparation quality of the blueberry fruit wine is ensured, and preparation efficiency of the blueberry fruit wine is improved.

The invention discloses a synchronous different-amplitude embedment kneading type grain repeated husking and impurity removal vibrating screen. The synchronous different-amplitude embedment kneading type grain repeated husking and impurity removal vibrating screen comprises a machine frame, a transmission mechanism, a first synchronous vibrating mechanism and a second synchronous vibrating mechanism. The transmission mechanism is installed on the front portion of the machine frame, the first synchronous vibrating mechanism and the second synchronous vibrating mechanism are installed in the middle of the machine frame, and the second synchronous vibrating mechanism is arranged on the top of the first synchronous vibrating mechanism in an embedded mode. A transmission shaft is installed on the machine frame through bearings, and first eccentric wheels and second eccentric wheels are fixedly arranged on the transmission shaft. Outer rockers are hinged to outer lifting lugs, and inner rockers are hinged to inner lifting lugs. A first vibrating frame is hinged to the outer rockers through lifting arms, and a second vibrating frame is hinged to the inner rockers. Third kneading materialguide pieces and first kneading material guide pieces are arranged in a crossed mode, and fourth kneading material guide pieces and second kneading material guide pieces are arranged in a crossed mode. A circular screen face is fixedly arranged at the bottom of the first vibrating frame. The synchronous different-amplitude embedment kneading type grain repeated husking and impurity removal vibrating screen is high in screening efficiency, good in repeated husking effect, high in cleaning rate of separated objects, low in impurity rate, simple in structure and high in reliability.

The invention relates to a corn harvester intelligent control test platform based on a CAN bus. The corn harvester intelligent control test platform comprises a test platform main body, and a parameter display setting panel, a vehicle control unit, a harvesting controller, a demonstration panel, a test platform operation module, a simulation execution mechanism and a measurement transmitting device which are arranged on the test platform main body; the parameter display setting panel, the vehicle control unit and the harvesting controller are connected through a CAN bus; and the harvesting controller receives and stores a control module of a corn harvester control system to be simulated and debugged, sends a control instruction to the vehicle control unit according to harvesting parametersset by the parameter display setting panel and the control module, and automatically simulates and adjusts the harvesting process. The test platform operation module is connected with an input port of the vehicle control unit; a corn harvester simulation diagram is drawn on the demonstration panel; the simulation execution mechanism comprises a plurality of simulation execution components which are connected with the output port of the vehicle control unit; and the measurement transmitting device collects data signals of all the simulation execution components.

The invention discloses a teff combined type cleaning system and a teff threshing and cleaning machine. The teff combined type cleaning system comprises a rack, a vibrating screen assembly and an airflow cleaning device, wherein the vibrating screen assembly and the airflow cleaning device are arranged on the rack; the vibrating screen assembly is used for screening away long straw and weeds whichare obtained after teff threshing; a seed discharge port of the vibrating screen assembly is connected with the airflow cleaning device; after being adsorbed by the airflow cleaning device, seeds aredischarged from the seed discharging port of the vibrating screen assembly, and shells in the seeds and the fine straw are discharged from an impurity removal port of the airflow cleaning device. Thecombined type cleaning system is provided with the teff threshing and cleaning machine and comprises a feeding device, a threshing device, a combined type cleaning system body, an engine device and awalking land wheel. The teff threshing and cleaning machine is reasonable in structure matching, convenient to operate, simple in test process and reliable to apply, and a solution is provided for obtaining the clean teff seeds.

The invention relates to an adjustable cleaning system of a soybean harvester, and belongs to the technical field of agricultural machinery. A main shaft of a uniform flow fan of the system is provided with a reducing belt wheel and is in transmission connection with a driving belt wheel through a transmission belt with a tension adjusting mechanism; a front grid screen and a rear grid screen in a vibrating screen of the system respectively comprise screen pieces which are arranged in a frame and distributed at intervals; hinge holes and receding holes which are uniformly distributed at intervals are formed in side plates of the rear grid screen; the upper ends of screen pieces of the rear grid screens are hinged to the corresponding hinge holes, and the lower ends of the screen pieces of the rear grid screens stretch out of the corresponding receding holes and then are hinged to the corresponding holes of the outer connecting rods, so that a parallel four-connecting-rod mechanism is formed. And one of the screen pieces of the rear grid screen is fixedly connected and movably connected with the upper end and the lower end of the rear adjusting handle respectively. After the soybean harvester is adopted, the rotating speed of the fan and the rear grating screen can be adjusted as required, so that the soybean harvester is suitable for harvesting and cleaning soybeans of different varieties, planting modes and working conditions, the cleaning efficiency and quality of soybean harvesting can be remarkably improved, and the cleaning loss is reduced.

An all-wheel-drive non-amplitude vibrating screen mechanism comprises a vibrating screen and a vibrating system. The vibrating system comprises a pair of front eccentric wheels, a pair of rear eccentric wheels, a pair of front multi-stage connecting rods and a pair of rear multi-stage connecting rods. The front eccentric wheels and the rear eccentric wheels are driven by a transmission mechanism, and are connected with a frame rotatably; the eccentric distance of the front eccentric wheels is large than that of the rear eccentric wheels. The front multi-stage connecting rods are in three-segment connecting rod structure, and the rear multi-stage connecting rods are in two-segment connecting rod structure. According to the all-wheel-drive non-amplitude vibrating screen mechanism, since the front multi-stage connecting rods adopts the three-segment connecting rod structure, the rear multi-stage connecting rods adopts the two-segment connecting rod structure, by means of driving by the eccentric wheels and interactive effect of structures of the vibrating screen and the like, so that the moving track of the front end of the vibrating screen is in a shape of a transverse 8, the moving track of the rear end of the vibrating screen is elliptical, vibrating directions of the entire screen surface are increased, and better screening effect is achieved.