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55results about How to "Does not affect fluency" patented technology

Equipment for mixing catalyst

ActiveCN101322924ASmall repressionRepression does not affectCatalytic crackingFlow mixersChemical industryPetroleum
The invention discloses a catalyst mixing device, aiming at solving the problems of large depression generated by a lifting medium to the blanking of an inclined blanking tube and being incapable of better uniformly mixing strands of catalysts with different characters respectively existing in the prior catalyst mixing device. In the invention, the interface locations of each inclined blanking tube (6) and each cylinder (4) is horizontally provided with a draft tube (7); the outlet end (71) of the draft tube is oblique with a plane vertical to the coaxial direction of the draft tube. A lifting medium distributer (5) is arranged in the cylinder; the top outlet (51) of the lifting medium distributer (5) is not lower than the top end of the outlet end of each draft tube. The top part of the top taper section (9) of the cylinder is provided with a deflection cylinder (3). The outlet end of the draft tube can lead the catalyst to cover an annular area between the cylinder and the lifting medium distributer on a horizontal direction after flowing out from the draft tube by surrounding the incline direction of the axial lead of the draft tube. The invention is mainly applied to a lifting tube reactor in the fluid catalytic cracking field of the hydrocarbon materials in petroleum refining and petroleum chemical industries.
Owner:LUOYANG PETROCHEMICAL ENG CORP SINOPEC

Heat flux sensor and preparation method thereof

The invention discloses a heat flux sensor. The heat flux sensor comprises electrodes and a measuring head, wherein the electrodes and the measuring head are integrally sintered, a thermopile is directly deposited on a measuring face of the measuring head, and the two ends of the thermopile are deposited on end faces of the electrodes respectively; the thermopile comprises multiple thermocouple units connected in series, and each thermocouple unit comprises a cold node and a hot node which are connected with each other; a thermal resistance layer is deposited on the measuring face; one part ofeach cold node and one part of each hot node are both arranged between the thermal resistance layer and the measuring face; and protective films are deposited on the thermopile and the thermal resistance layer respectively. The heat flux sensor has the advantages of being high in response speed, high in sensitivity, simple in structure and the like. The invention further discloses a preparation method. The preparation method comprises the steps that S01, the electrodes, ceramic and glass powder are sintered to prepare an integrated structure; S02, film coating is directly performed on the measuring face through an ion beam sputtering process to form the thermopile and the thermal resistance layer; and S03, the protective films are deposited. The preparation method has the advantages of being simple in process and the like.
Owner:48TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP

Automobile cover plate welding, positioning and clamping mechanism

The invention belongs to the technical field of clamping mechanisms, and particularly relates to an automobile cover plate welding, positioning and clamping mechanism which comprises a welding table plate and a plurality of sliding grooves formed towards the inner side along the outer edge of the welding table plate, and clamping assemblies used for clamping automobile parts are installed in the sliding grooves. The clamping assemblies can move on the surface of the welding table plate along the sliding grooves so that the positions of the clamping assemblies can be adjusted according to the shapes of the parts. Each clamping assembly comprises a clamping plate base, a supporting frame, an auxiliary wheel frame and a lever frame, wherein the supporting frame is fixed to the top of the clamping plate base, and the lever frame is rotationally mounted at the top of the supporting frame through a rotating shaft. The welding table plate is arranged, the multiple clamping assemblies are installed on the peripheral side of the edge of the welding table plate at equal intervals, the sliding grooves corresponding to the clamping assemblies are formed in the welding table plate, the clampingassemblies can slide on the sliding grooves so as to adjust the positions of the clamping assemblies, and automobile cover plate welding, positioning and clamping mechanism can be suitable for the parts of different shapes and is high in universality.
Owner:嘉善优博自动化设备有限公司

Explosion-proof glass plate of laboratory fume hood and laboratory fume hood

The invention discloses an explosion-proof glass plate of a laboratory fume hood and the laboratory fume hood. The explosion-proof glass plate of the laboratory fume hood comprises a glass plate body; the glass plate body is a tempered glass plate or a polycarbonate endurance plate and is of an interlayer or curved-surface structure, so that the explosion-proof glass plate has good explosion-proof performance. In addition, the glass plate body is provided with at least one through hole allowing an arm to penetrate through and a through hole cover which is arranged at the through hole and mounted on the through hole in an opening and closing mode. When a laboratory operator carries out an experiment, the explosion-proof glass plate can be completely pulled down, and then operations such as taking and placing of small articles needed in the experiment process, instrument adjustment and the like can be carried out by the arm through the through hole. Taking and placing of the small articles or instrument adjustment is very convenient, ventilation and smoothness of experiment operations cannot be affected, meanwhile, the explosion-proof performance of the explosion-proof glass plate can be better exerted, and then the safety and health of the experiment operator in the experiment process are effectively guaranteed.
Owner:山东龙腾天实验室科技有限公司

Preparation process of eyesight protection paper

The invention discloses a preparation process of eyesight protection paper, which adopts a mixture of waste paper and straws as a raw material and comprises the following specific steps: a, cutting the straws into sheets, removing impurities and dehydrating; b, putting the straws into a solvent and mixing; c, cooking and removing impurities to obtain straw unbleached pulp; d, crushing waste paper and adding hot water to prepare paper pulp; e, performing deinking treatment on the paper pulp in the step d to obtain waste paper pulp; f, uniformly mixing the straw unbleached pulp, the waste paper pulp and a porous filler to form mixed pulp; g, subjecting the mixed slurry to hot grinding dissociation, and taking one part of the ground slurry as a surface slurry; h, adding a light absorbing filler into the rest of the ground slurry, carrying out hot grinding dissociation again, and taking the ground slurry as a core layer slurry; i, manufacturing the eyesight protection paper through a papermaking machine, wherein the eyesight protection paper is formed by compounding an upper layer, a middle layer and a lower layer, the outer paper faces of the upper layer and the lower layer are made of surface slurry, and the middle light absorption layer is made of the core layer slurry. The preparation process is environment-friendly, resources are saved, and the prepared paper can protect eyesight.
Owner:JIANGSU KEYI CULTURE IND GRP CO LTD

Fire extinguisher air pressure monitoring system based on Hall effect and working method thereof

The invention provides a fire extinguisher air pressure monitoring system based on a Hall effect and a working method thereof. The system comprises a fire extinguisher with a barometer, an air pressure monitoring device, a gateway and a server. A pointer of the barometer of the fire extinguisher is a magnetic pointer. The air pressure monitoring device comprises an MCU and at least one Hall element connected with the MCU. The Hall element is arranged near the pointer of the barometer; a corresponding relation table between Hall element output signals and the air pressure of the fire extinguisher is stored in the MCU, and the MCU is used for capturing the output signals of the Hall element, searching a corresponding relation table between the Hall element output signals and the air pressureof the fire extinguisher to obtain corresponding air pressure value of the fire extinguisher and transmitting the air pressure value to the server through the gateway. The linear Hall technology is adopted, additional air guide holes do not need to be additionally formed in the fire extinguisher, structural modification is small, the linear Hall fire extinguisher is compatible with all types of fire extinguishers at present, the appearance is basically not much different from that of traditional fire extinguisher equipment, and operation smoothness is not affected.
Owner:温州悦视科技有限公司
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