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261results about How to "Will not accumulate" patented technology

Separation method of Fischer-Tropsch synthesis gas by combining rectification and solvent absorption

The invention relates to a separation method of Fischer-Tropsch synthesis gas by combining rectification and solvent absorption. The separation method comprises the following steps: Fischer-Tropsch synthesis gas pretreated is conveyed to a demethanizer after being cooled; the top of the demethanizer separates hydrogen and other light gas, methane, part of C2 fraction and little amount of C3; the mixed gas enters an absorption tower and uses C3, C4 or C5 or hydrocarbon mixture as an absorbing agent to absorb C2 and heavier components; the products of the top of the absorption tower comprise hydrogen and other light gas, methane, the little balanced amount of C2 and the absorbing agent; the products of the bottom of the tower are components above C2 and little amount of hydrogen and methane; the materials are conveyed to the demethanizer for further absorbing C2 and heavier fraction and removing the methane and lighter components therein. The light hydrocarbon mixture of the bottom of the demethanizer can adopt conventional light hydrocarbon separation method to separate out various light hydrocarbon products with needed purity and recycling rate. Compared with the prior art, the invention has the advantages of simple process, low energy consumption and high recycling rate of various components and the like.
Owner:WISON ENG

Column pulse dual-side driving method for smectic liquid crystal display screen

The invention discloses a column pulse dual-side driving method for a smectic liquid crystal display screen, comprising the following steps: 1) initializing a smectic liquid crystal display screen; and 2) respectively carrying out row-column driving on the top half screen and the bottom half screen according to the respective set scanning driving way, thereby leading the top half screen and the bottom half screen to display the respective images; simultaneously respectively carrying out scanning driving on one row electrode of the top half screen and one row electrode of the bottom half screen during the row-column driving process of the top half screen and the bottom half screen; respectively applying the corresponding column pulse to each column electrode on the top half screen according to the image displayed by the row which corresponds to the row electrode while carrying out the scanning driving on one row electrode on the top half screen; and respectively applying the corresponding column pulse to each column electrode on the lower half screen according to the image displayed by the row which corresponds to the row electrode while carrying out the scanning driving on one row electrode on the lower half screen. The adoption of the column pulse dual-side driving method for the smectic liquid crystal display screen can improve the image refresh rate, and the display screen structure and the method are particularly suitable for the high-definition image display.
Owner:BEIJING HALATION TECH

Degradable filter material biogas slurry filter and filtering method thereof

The invention discloses a degradable filter material biogas slurry filter and a filtering method of the degradable filter material biogas slurry filter. The degradable filter material biogas slurry filter comprises a box body, wherein a floating filter material filling hole and a fixed filter material filling hole are formed at the top of the box body, a liquid inlet is formed at the middle part of the box body, and a slag hole is formed at the bottom of the box body; the liquid inlet divides the inner cavity into a floating filter material chamber at the upper part of the liquid inlet and a sedimentation chamber at the lower part of the liquid inlet, a floating filter material is arranged inside the floating filter material chamber, the slag hole is communicated with the sedimentation chamber, and the floating filter material filling hole is communicated with the floating filter material chamber; and the fixed filter material filling hole is communicated with the floating filter material chamber by virtue of the fixed filter material chamber, a grid is arranged at a communication part, a fixed filter material is arranged inside the fixed filter material chamber, and the fixed filter material chamber is connected with a liquid outlet. By adopting the degradable filter material biogas slurry filter, flushing and back washing are not needed, the degradable filter material biogas slurry filter can stably operate for a long time while a filter material is supplemented periodically, and quality of filtered clear solution is stable and controllable.
Owner:成都中农能源环境工程设计所有限责任公司

Rotary camera mechanism with protective shell

The invention discloses a rotary camera mechanism with a protective shell. The rotary camera mechanism comprises a protective box body and a camera. The protective box body is fixed on a wall surface. A connecting frame is fixed at the right end of the bottom surface of the top plate of the protective box body. One end of an upper drive screw is hinged on a left side plate of the protective box body and the other end of the upper drive screw is hinged on the connecting frame. A mobile motor is fixed on the connecting frame. An output shaft of the mobile motor is a spline shaft. The end of the spline shaft sleeved on the upper drive screw is equipped with a spline hole. An upper mobile block is screwed in the upper drive screw. The bottom end of the upper mobile block is fixed on the top of a drive box body. The drive box body is located in the protective box body. A drive servo motor is fixed on the outer side wall of the upper part of the drive box body. According to the rotary camera mechanism, the camera can automatically rotates to stretch out or into the protective box body, so when the rotary camera mechanism is not used, dust is not accumulated; the camera is protected; the service life of the camera is ensured; and the camera can mounted and dismounted conveniently.
Owner:百捷智达科技有限公司

GGD-type low-voltage switch cabinet

The invention discloses a GGD-type low-voltage switch cabinet, which comprises a cabinet body, wherein an activated carbon moisture absorption layer is arranged on the inner wall of the cabinet body; a rubber insulating layer is arranged on the lateral wall, far away from the cabinet body, of the activated carbon moisture absorption layer; dense moisture absorption holes are arranged in the rubber insulating layer; a beam is arranged at the upper end of the cabinet body; an intake fan is arranged at the upper end of the beam; the lower end of the intake fan is connected with a first intake pipe; and the first intake pipe is introduced into the cabinet body. The intake fan and an exhaust fan are arranged, so that the air liquidity in the cabinet body is strengthened; and the heat is not accumulated. When the heat cannot be timely conducted, a second intake pipe is opened and a condenser cools the air and then introduces the air into the cabinet body to cool the cabinet body, so that the problem of an electrical fire generated at a high temperature is solved. The activated carbon moisture absorption layer is arranged on the periphery in the cabinet body to absorb moisture, so that the cabinet body is always in a dry environment; and the problem of the fire generated by a short circuit caused by moisture condensation is solved.
Owner:ANHUI FUHUANG ELECTRIC CONTROL EQUIP

Square silicon wafer compatibility rotating tray and silicon wafer cleaning device

The invention relates to the technical field of silicon wafer cleaning for semiconductor wafer processing, and discloses a square silicon wafer compatibility rotating tray and a silicon wafer cleaningdevice. Specifically, the square silicon wafer compatibility rotating tray includes a bottom supporting chuck. At least one silicon wafer supporting mechanism is arranged on the bottom supporting chuck. Each silicon wafer supporting mechanism includes a supporting column group and a retaining column group which are fixed on the bottom supporting chuck. Each supporting column group includes four supporting columns. Each retaining column group includes four retaining column units, and each retaining column unit includes two retaining columns. The contact area between silicon wafers and supporting members is reduced, the surfaces of silicon wafers are protected from scratch and damage to the greatest extent, and the problem that the surface of a silicon wafer is damaged due to large contactarea between a supporting body and the silicon wafer or the problem that the surface of a silicon wafer cannot be cleaned and even there are fragments due to instable supporting in the traditional supporting mode is avoided.
Owner:BEIJING SEMICON EQUIP INST THE 45TH RES INST OF CETC

Sealing structure of explosion proof purification light fitting

The invention relates to a light fitting sealing structure and especially relates to a sealing structure of explosion proof purification light fitting. The sealing structure of explosion proof purification light fitting comprises a lampshade, a lamp cover and a pedestal, which are detachably connected together in sequence; the pedestal comprises a top wall connected with the lamp cover, a bottom wall connected with the ceiling and four side walls connected with the top wall with the bottom wall, the lamp cover is connected with a pressing plate through a fastening screw, and the lower part of the lampshade is firmly clamped between the lamp cover and the pressing plate; a sealing ring is arranged between the pressing plate and the top wall, a sealing screw sequentially passes through the lamp cover, the sealing ring and the top wall, the bottom wall is a hollow frame on the plane, the middle part of the top wall depresses towards the direction of the bottom wall to form a depression, and a segment of gap exists between the depression and the side walls; and the lower part of the sealing screw is located in the gap between the depression and the side walls. The sealing screw of the sealing structure of explosion proof purification light fitting disclosed by the invention is isolated at the outside of the explosion proof cavity to improve the safety performance, improve the radiating conditions and improve the purification effect.
Owner:陆阳 +1

Anti-jamming pneumatic slide plate gate of pulverized coal pipeline and work method based on anti-jamming pneumatic slide plate gate

The invention discloses an anti-jamming pneumatic slide plate gate of a pulverized coal pipeline and a work method based on the anti-jamming pneumatic slide plate gate. The anti-jamming pneumatic slide plate gate comprises a rectangular frame which is connected with the pulverized coal pipeline through fixing bolts, wherein a slide plate which can block airstreams in the pulverized coal pipeline is arranged in the center of the rectangular frame; the rectangular frame comprises a front side frame, a rear side frame, a left side frame and a right side frame; the left and right side frames are separately provided with a sliding rail, so that the slide plate can slide along the sliding rails of the rectangular frame; the slide plate is connected with a slide plate draft device; asymmetrical chevron air passages are arranged above the rear side frame; symmetrical chevron air passages are arranged below the rear side frame; the air passages are all connected with compressed air pipelines; the compressed air pipelines are connected with a compressed air source; electromagnetic valves are arranged on the compressed air pipelines; the electromagnetic valves are connected with compressed air control systems; and in processes of inserting the slide plate into the rectangular frame and pulling the slide plate out of the rectangular frame, dust accumulated on the upper part, the lower part, the front part and the rear part of the slide plate is cleaned through airstreams in the compressed air pipelines, so that the problem of jamming of the slide plate caused by large friction force of the dust is solved.
Owner:ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +2

Chlorate oxygen candle with stable combustion for oxygen supply and preparation method of chlorate oxygen candle

The invention discloses a chlorate oxygen candle with stable combustion for oxygen supply and a preparation method of the chlorate oxygen candle. The chlorate oxygen candle comprises a main candle body and a combustible medicine layer, wherein the main candle body is prepared from, by weight, 70-88 parts of sodium chlorate, 1-15 parts of potassium perchlorate, 2-6 parts of fuel, 0.5-5 parts of acatalyst, 1-8 parts of a chlorine inhibitor, 1-8 parts of a binder and 2-5 parts of a broken metal piece; the combustible medicine layer is prepared from, by weight, 75-86 parts of sodium chlorate, 1-5 parts of potassium perchlorate, 2-10 parts of fuel, 1-5 parts of a catalyst, 2-8 parts of a chlorine inhibitor and 0.5-4 parts of a broken metal piece. The preparation method includes the steps: preparation of the main candle body, namely evenly dry-blending the raw materials added with 0.5% of distilled water by evenly wet-blending; preparation of the combustible medicine layer, namely evenlydry-blending the raw materials added with 0.5% of distilled water by evenly wet-blending; loading a mould press between positions under the main candle body and above the combustible medicine layer for compression molding prior to placing in an oven for 14 hours at 120-140DEG C after demolding. The chlorate oxygen candle is good in heat-transfer performance, and heat generated from combustion cannot be accumulated to cause combustion to increase; post-combustion residues are less prone to flow, and stable combustion for oxygen supply is guaranteed.
Owner:HUBEI INST OF AEROSPACE CHEMOTECH

Coagulant for treating fine-grain high-viscosity soil coal slime water

The invention discloses a coagulant for treating fine-grain high-viscosity soil coal slime water, and the coagulant is prepared by evenly mixing more than two of barite powder, calcite powder, dolomite powder and medical stone powder. The coagulant is a mineral preparation, and when the coagulant is used, the coagulant can be discharged along with coal slime in usage, cannot be accumulated in water and cannot influence the water quality; the coagulant can change the electrical property of the surfaces of coal slime particles, so that high-viscosity soil mineral and the coal slime particles are easily flocculated and precipitated, the filter pressing speed of the coal slime is increased, and the cleaned coal quality and yield are improved. The coagulant can be matched with an appropriate amount of flocculating agents, the effect is good when the coagulant is used for treating the coal slime water which is complex in components and difficult to precipitate, the coagulation effect is obvious especially for the high-viscosity fine-grain soil coal slime water, and actual production requirements can be completely met; the water content of treated coal slime filter cakes is decreased below 25 percent, and the content of suspended matter in thickener overflow water is smaller than 150 mg/L.
Owner:陕西省地质矿产实验研究所有限公司

High-efficiency lubricating oil stirring device

The invention discloses a high-efficiency lubricating oil stirring device and relates to the field of lubricating oil stirring equipment. The high-efficiency lubricating oil stirring device comprises a stirring tank, wherein a feeding hole is formed in the upper end of the stirring tank; a discharging hole is formed in the lower end of the stirring tank; a sealing cover is arranged at the discharging hole; a cover is arranged at the upper end of the stirring tank; a motor is arranged on the cover; a fixing seat is arranged at the bottom of the stirring tank; the output shaft of the motor is connected with a lead screw; the lower end of the lead screw is rotationally connected with the fixing seat; a sliding seat in threaded fit with the lead screw is arranged on the lead screw; symmetrical stirring racks are arranged at two ends of the sliding seat; a plurality of scrapers are arranged on the stirring racks along side walls of the stirring racks; a plurality of sawteeth are formed in inner walls of the stirring tank; the inner walls of the stirring tank are of a double-layer structure comprising an outer layer and an inner layer; the outer layer is a thermal insulation layer; the inner layer is a corrosion-resistant layer; a PLC (Programmable Logic Controller) is arranged on the stirring tank; and the motor is electrically connected with the PLC. According to the design, the high-efficiency lubricating oil stirring device is reasonable in structure, high in stirring efficiency and high in mixing uniformity.
Owner:WUHU YIZE SMALL & MEDIUM ENTERPRISE PUBLIC SERVICE CO LTD
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