8results about How to "Improve uneven distribution" patented technology

The application provides a single crystal furnace cyclone air distribution device, a single crystal furnace and a furnace protective gas flow optimization method, and belongs to the single crystal production equipment field.The device is arranged at the air inlet of the single crystal furnace and is located directly above the single crystal rod position in the furnace.The cyclone cylinder is arranged at the uppermost side of the single crystal furnace and is in a circular ring column shape.A gas flow guide structure is arranged on the inner wall of the circular ring column shape to guide the protective gas to form a cyclone.The air inlet is arranged on the circular top surface of the circular ring column shape and includes at least two air inlet holes that are symmetrically distributed with the center as the center, so that the protective gas enters the sealed cyclone cylinder from the air inlet.The circular top surface has a predetermined thickness, and when the circular air inlet hole of the air inlet penetrates the circular top surface, a bevel with a predetermined angle is formed, and the bevel direction is tangent to the spiral partition direction of the internal cyclone cylinder.The application improves the eccentric turbulent flow problem and improves the uniformity and oxygen reduction effect of the protective gas flow in the single crystal furnace.

The utility model relates to the technical field of dry-mixed mortar, and discloses a continuous stirring device for dry-mixed mortar production, which comprises a support frame, one side of the upper end of the support frame is fixedly connected with an external shell, the side surface of the external shell is fixedly connected with a motor, and the output end of the motor is fixedly connected with a speed reducer. The speed reducer is fixedly connected to the interior of the external shell, the output end of the speed reducer is fixedly connected with a stirring shaft, the side surface, away from the motor, of the external shell is fixedly connected with a conveying pipe, the conveying pipe is arranged outside the stirring shaft in a sleeving mode, and the outer surface of the conveying pipe communicates with a feeding bin. And a dust removal assembly is arranged outside the feeding bin. Water is pressurized through the water pump and then conveyed to the stirring shaft through the water conveying pipe, the water and mortar flowing in the same direction form hedging through the reverse water outlet holes, and three-dimensional turbulent flow mixing is formed in the conveying process of the water and materials in cooperation with shearing force generated by the rotating pins.

The application discloses a lapping device for steel ball processing and a use method thereof, and relates to the technical field of lapping, which comprises a machine body, upper and lower lapping discs, a lifting seat and a ball feeding transition area, and further comprises a liquid supply switching mechanism and a blockage positioning mechanism; the liquid supply switching mechanism makes multiple liquid injection holes spray liquid in sequence through the rotation of a distribution disc; the blockage positioning mechanism detects the liquid supply pressure of the corresponding liquid injection hole by using the same hydraulic sensor, and determines the blocked liquid injection hole corresponding to the abnormal hydraulic pressure by combining the position of the distribution disc recognized by a position detection assembly. The application supplies liquid to different annular groove ball feeding positions through multiple liquid injection holes, improves the uneven distribution of lapping liquid, switches the liquid injection path in sequence through the distribution disc, detects the hydraulic pressure of each path by using the same hydraulic sensor, and determines the current liquid injection hole by combining the position detection assembly, so that the blocked liquid injection hole can be quickly positioned when the hydraulic pressure abnormally rises, the hole-by-hole disassembly and inspection are reduced, and the maintenance efficiency is improved.

The utility model relates to the technical field of ceramic tile production equipment, and discloses a dry granule distribution platform and a dry granule machine, the dry granule distribution platform comprises a platform support, a driving roller, a driven distribution roller, a feeding belt and a distribution driving mechanism, the diameter of the driven distribution roller is smaller than that of the driving roller, and the driven distribution roller is located at the downstream of the driving roller; the platform support is provided with a straightening structure located behind the driven material distribution roller, and the straightening structure is used for maintaining the straightness of the driven material distribution roller. The straightness of the small-diameter driven material distribution roller is maintained by arranging the straightening structure, the consistent tightness of the feeding belt in the operation process is guaranteed, the speed difference of dry particles caused by different tightness degrees of the feeding belt is avoided, the problem that the dry particles are not uniformly distributed on the feeding belt is solved from the source, and the production efficiency is improved. The distance between each point on the surface of the driven material distribution roller and the feeding belt is kept consistent, so that the dry particles are uniformly extruded and pushed when passing through the material distribution roller, and the material distribution uniformity is further improved.

The application discloses a kind of solid supported copper-based N-heterocyclic carbene catalytic materials and preparation method and application thereof, and it is related to material synthesis technical field.The preparation method of the catalytic material includes: cuprous oxide is reacted with N-heterocyclic carbene ligand containing bromine group in solvent, and copper-based N-heterocyclic carbene complex is formed;The complex is subjected to Sonogashira coupling reaction with alkyne compound under the action of catalyst, and bromine group on the complex is coupled with alkyne compound and occurs copolymerization, forms porous organic polymer skeleton, and copper-based N-heterocyclic carbene complex is distributed in the skeleton, and solid supported copper-based catalytic material is obtained;Wherein alkyne compound is selected from 1,3,5-triethynylbenzene or 1,3,5-tri (4-ethynylphenyl) benzene.The obtained catalytic material has porous organic polymer skeleton, and copper active species is uniformly distributed in the whole material, belongs to heterogeneous catalytic material, is easy to separate and recycle, can be recycled, and shows excellent catalytic performance in alkyne alkylation reaction of trifluoromethyl ketone.

This utility model discloses an integrated device for testing the number of uses of anti-fog cloth, relating to the field of anti-fog cloth technology. It aims to solve the technical problem of uneven surfactant distribution on the glass sheet caused by full-coverage wiping with anti-fog cloth, resulting in insufficient accuracy of test results. The device includes a housing with a partition in the middle. From left to right, cavities A, B, C, and D are arranged on the front surface of the partition. A wiping mechanism A is arranged in cavity A, and a testing mechanism is arranged in cavity B. This utility model optimizes the design of the bushing and shaft structure. A drive motor drives the bushing to rotate via gear set A, which in turn causes the lower housing B to rotate synchronously. Simultaneously, the meshing transmission of gear set B causes the reciprocating screw to move the wiping plate radially within the housing. This allows the anti-fog cloth to move in a radial spiral trajectory as the housing rotates, achieving comprehensive and uniform wiping of the glass sheet surface and improving the problem of uneven surfactant distribution in traditional wiping methods.

This utility model relates to the field of automotive lighting technology, and more particularly to an optical system for improving illumination uniformity, and automotive lights and vehicles using the same. The optical system for improving illumination uniformity includes a collimator that collimates light emitted from a light source, and the collimator includes at least one collimating unit; and a light commutation unit, including at least one set of light commutation units, each light commutation unit including an incident light unit and an exiting light unit. The incident light unit converges light from the collimator, and the exiting light unit is composed of multiple refractive surfaces, with the light cone angle formed by the light rays passing through the ends of each refractive surface being approximately equal. This optical system for improving illumination uniformity achieves light emission through multiple refractive surfaces. Because the light cone angle of each refractive surface is approximately equal, it can weaken the contrast between light and dark areas, thereby improving uneven light distribution and enhancing illumination uniformity.

The utility model discloses an inner fire cover and combustor. The inner fire cover, including inner fire cover body, the upside of inner fire cover body is equipped with the wok -frying fire hole, the lower part of inner fire cover body is equipped with wok -frying gas cavity, wok -frying gas cavity with wok -frying fire hole intercommunication, be provided with the splitter plate in wok -frying gas cavity, be equipped with main gas through -hole and gas shunt through -hole on the splitter plate, the middle part of main gas through -hole is equipped in the splitter plate, the outer side of main gas through -hole is equipped with gas shunt through -hole, the area of main gas through -hole is S1, the area of gas shunt through -hole is S2, S1 > S2. The utility model provides an inner fire cover, can improve the problem of uneven flame distribution, and make the flame center distribution simultaneously.