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527results about How to "Sealed" patented technology

Method for recovery of waste heat of steel slag and comprehensively processing and utilizing steel slag

The invention provides a mehtod for recovering waste heat of steel slag and comprehensively processing and using the steel slag, and belongs to the technical field of steel slag treatment. The method comprises the following steps: a thermal state steel slag material discharging system discharges steel slag into a thermal state steel slag material receiving system for primary crushing; the crushed steel slag is subjected to secondary crushing by a thermal state steel slag velocity control system and quantificationally fed into a thermal state steel slag cooling granulating system for re-crushing and cooling, high-temperaure hot air generatd in the cooling process is collected by a thermal state steel slag waste heat recovery system and enters a heat exchange system to form vapor for power generation or heat supply; the cooled steel slag enters a steel slag stabilizing treatment system, and the steel slag after the stabilizing treatment is treated by a steel slag separation system to obtain steel slag tailing micropowder and metal slag steel respectively; and, the steel slag micropowder is mixed with other materials and used to prepare concrete products by a steel slag concrete product processing preparation system. The method has the advantages of adaptability to various types of steel slag to be processed, good operational environment and no secondary pollution.
Owner:SHOUGANG CORPORATION

Garbage classification and collection system for high-rise building

A garbage classification and collection system for a high-rise building comprises a vertical slideway, a control device, various kinds of garbage cans and at least one lifter. The vertical slideway serves as a garbage conveying passage for the high-rise building. The control device comprises a control panel of each floor and is used for controlling operation of the garbage classification and collection system. The various kinds of garbage cans are used for containing various kinds of garbage. Each lifter is disposed in the vertical slideway. The various kinds garbage cans are disposed on the lifters. The control device controls the lifters according to received instructions to drive the garbage cans to move up and down in the vertical slideway and rest at appointed floors. Compared with the existing garbage classification and collection system for high-rise buildings, the garbage classification and collection system adopts innovative thoughts, garbage can be classified and collected, and influence of garbage odor on residents of the high-rise building is reduced due to the fact that the garbage cans are disposed in the slideway. The garbage classification and collection system is simple in structure and easy in maintenance and late modification, and total automation can be achieved.
Owner:SHENZHEN SMART SECURITY & SURVEILLANCE SERVICE ROBOT CO LTD

Photovoltaic solar energy pavement structure unit, power generation system and manufacturing method of pavement structure unit

ActiveCN103929119ASave land costReduce the cost of photovoltaic power generationPhotovoltaic supportsSolar heating energyAutomotive engineeringStructural unit
The invention relates to a photovoltaic solar energy pavement structure unit, a power generation system and a manufacturing method of the pavement structure unit. The pavement structure unit comprises a concrete base, a photovoltaic solar cell panel and a PMMA light-transmitting protective plate, a sinking part is arranged in the center of the concrete base, the PMMA light-transmitting protective plate is arranged on the concrete base in a covering mode to define a closed space, and the photovoltaic solar cell panel is packaged in the closed space. The power generation system comprises a solar energy storage battery controller, a storage battery and multiple photovoltaic solar energy pavement structure units, the photovoltaic solar energy pavement structure units are laid to form a pavement and connected in parallel or series to the solar energy storage battery controller, the solar energy storage battery controller is connected with the storage battery, and the output end of the storage battery or the output end of the solar energy storage battery controller is connected with an electric load. The manufacturing method includes the steps that S1, the concrete base is prefabricated; S2, the photovoltaic solar cell panel is installed; S3, the PMMA light-transmitting protective plate is arranged on the concrete base in a packaging mode and receives penetrating light irradiation.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Food grade lubricating grease and its preparation method and application

ActiveCN102268320AComply with water quality sanitation and safety requirementsSealedLubricant compositionFood gradeBase oil
The invention relates to food-grade lubricating grease as well as a preparation method and application thereof. The food-grade lubricating grease comprises the following components by weight percent: 70-80% of base oil, 6-15% of thickening agent and 10-20% of antiwear agent. The preparation method comprises the following steps: adding fatty acid, aromatic acid and organic aluminum into the base oil in a proportion, mixing and heating to 60-100 DEG C, and carrying out a recombination reaction for 1-2 hours; further heating the combined material to 100-140 DEG C, adding tap water with a certain proportion and then maintaining the constant temperature for 1-2 hours, wherein water equivalent is 1-3 times that of organic aluminum; further heating the combined material to 150-180 DEG C and the nmaintaining the constant temperature for 0.5-1 hour; then adding quenching oil and evenly mixing, wherein the amount of quenching oil is about 30%-40% of that of base oil; and further cooling the material to the temperature below 140 DGE C, and adding the antiwear agent and then evenly mixing, so as to obtain the required product. In the invention, a one-step method is adopted for direct recombination reaction, thus process is simple, energy consumption is reduced, production cost is reduced, and the quality of the product produced by the process is relatively stable.
Owner:CHINA PETROLEUM & CHEM CORP

Underwater electric steering engine and rudder angle detection method

The invention relates to a steering gear, in particular to an underwater electric steering engine and a rudder angle detection method. The underwater electric steering engine comprises an output shaft, an engine base, a worm wheel, a worm, a power system and a steering engine controller. The power system drives the output shaft to rotate through transmission of the worm and the worm wheel. The output shaft extends out of the end, provided with a shaft end cap, of the engine base, and the output shaft is provided with a limiting swing piece at the end. A swing groove is formed in the shaft end cap. The limiting swing piece swings in the swing groove. The steering engine controller is connected with a motor in the power system. An incremental encoder is arranged on the motor. The limiting swing piece and the steering engine controller are used for determining the rudder angle zero point position. The incremental encoder is used for detecting angle change values of a motor output shaft so as to determine the absolute position of the current rudder angle. The power system is arranged in a shell. The shell communicates with the engine base, and the interior of the shell is an oil-filled sealed space. An oil pipe is connected with the shell. The underwater electric steering engine is compact in overall structure and capable of meeting operation demands of full-ocean-depth low-speed large-torque and large-moment output.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Road and bridge expansion joint structure

The invention discloses a road and bridge expansion joint structure. The road and bridge expansion joint structure comprises an inverted-T-shaped plate component with the bridge longitudinal cross section being in an inverted T shape. Two wing plates of the inverted-T-shaped plate component transversely extend into a base body of a bridge pavement layer. A web extends upwards to be flush with the upper surface of the bridge pavement layer. Each wing plate is sequentially provided with a cushion layer and a protection wear-resisting layer from bottom to top in a laying mode and is longitudinally connected with the bridge pavement layer. An expansion joint notch and the two sides of the expansion joint notch are filled with elastic layers to be sealed. The road and bridge expansion joint structure has the advantages of being convenient to construct, reasonable in design, high in efficiency, good in vehicle load bearing performance, good in elasticity, smooth and attractive in surface, and good in waterproofing, anti-aging, anti-fatigue, shock resistance and corrosion resistance. In accordance with the characteristics of an expansion joint, three materials of different components and matching ratios are adopted, layered pavement is conducted according to different stress conditions and states, good durability is achieved, construction is rapid and simple, and the expansion joint performance requirement can be well met.
Owner:孟献春

Bearing quick-release lock

The invention discloses a bearing quick-release lock and belongs to the fields of quick release connection of a fairing and an access panel which are frequently released in an aviation helicopter structure. The bearing quick-release lock is characterized by comprising a lock seat assembly and a lock pin assembly, wherein the lock seat assembly comprises a sealing cap, a snap spring, a compression spring, a sliding block and a lock seat; the lock pin assembly consists of a washer, a lock pin, a bush and an ejection rod. The bearing quick-release lock disclosed by the invention has the advantages of light structural weight, attractive appearance, high reliability, sealing property and certain bearing capacity, and can be suitable for quick release connection of a fairing at a position where the vibration environment is particularly severe. According to the quick-release lock disclosed by the invention, after locking, the lock pin is clamped by a clamping groove of the sliding block, so that the lock pin cannot extend by rotating; the lock pin can be unlocked by rotating after the ejector rod is pushed by a tool and is enabled to push the sliding block to move until the lock pin cannot be clamped by the sliding block; after locking, the ejector rod ejects to be in flush with the head of the lock pin, so whether the virtual locking exists or not can be effectively judged.
Owner:CHINA HELICOPTER RES & DEV INST

Detachable internally-arranged infrared temperature measuring device for GIS

The invention provides a detachable internally-arranged infrared temperature measuring device for the GIS. The detachable internally-arranged infrared temperature measuring device for the GIS comprises an infrared perspective window, an infrared temperature measurement sensor body, a fully-sealed shell, a first installation flange, a second installation flange, a circuit protective shell and a signal amplifying and processing circuit. The infrared perspective window is connected with the infrared temperature measurement sensor body. The infrared temperature measurement sensor body is located inside the fully-sealed shell. One end of the fully-sealed shell is fixed to the GIS through the first installation flange and the other end of the fully-sealed shell and the circuit protective shell are connected through the second installation flange. The signal amplifying and processing circuit is located inside the circuit protective shell. The detachable internally-arranged infrared temperature measuring device for the GIS is flexible and detachable, the infrared temperature measurement sensor body and the fully-sealed shell are safe and independent, the sealing performance and the voltage resistant performance are good, and the infrared temperature measurement sensor body and the fully-sealed shell are installed outside a GIS air chamber, so that verification, maintenance and replacement which are conducted by an infrared temperature sensing system are facilitated under the condition that the GIS is operated; the device can be detached under the condition that normal operation of the GIS is not influenced, an internal electric field structure of the GIS is not influenced, and the requirement for the sealing performance of the GIS is satisfied.
Owner:STATE GRID CORP OF CHINA +4

Pocket type dust removal device

The invention discloses a pocket type dust removal device, and relates to the technical field of pocket type dust removal equipment. According to the pocket type dust removal device, the problem that the conventional filter bag is inconvenient to replace is solved. The dust removal device comprises a shell, a flower plate and a bag cage, wherein the flower plate is arranged in the shell; a filter bag sleeves the bag cage; an elliptic annular guide rail, the two ends of the which extend out of the shell, is arranged below the flower plate; the rolling wheel is arranged on each of the two sides of the upper end of the bag cage; the bag cage is positioned on the guide rail by the rolling wheels; an annular chain and a motor which is provided with a chain wheel are arranged on the inner side of the guide rail; the bag cage is connected with the chain. When the filter bag needs to be replaced, the motor operates to drive the chain to enable the bag cage to move out of the shell by the guide rail. Therefore, the filter bag can be replaced outside the shell; a worker does not need to enter the dust removal device, so that the harm to a body of a maintainer due to dust is avoided, and the filter bag is more convenient to replace. Therefore, the pocket type dust removal device has wide application prospect in the technical field of pocket type dust removal devices.
Owner:成都捷科菲友信息技术有限公司

Water-proof sealing cover

The invention discloses a water-proof sealing cover for a stay cable or a lifting rod. The water-proof sealing cover comprises a fixing sleeve, sealing rubber, a compression ring and a corrugated sealing sleeve, wherein the fixing sleeve, the compression ring and the sealing rubber are integral structures or two-half structures; the corrugated sealing sleeve is the integral structure or the two-half structure; during use, the corrugated sealing sleeve with the two-half structure is connected into a whole through a bolt; and the sealing rubber is arranged between the fixing sleeve and the compression ring. Through pre-tensioning force between the fixing sleeve and the compression ring, the sealing rubber is tightly clamped in a cable body, so that the fixing sleeve, the compression ring and the sealing rubber are fixed with the cable body and then are connected with a pre-embedded pipe through the corrugated sealing sleeve. The corrugated sealing sleeve has a plurality of degrees of freedom, the influence of constraint on the cable body is relatively low, and a relatively good sealing effect can be achieved. Furthermore, due to the special structure of the corrugated sealing sleeve, the problem that the water-proof cover cannot be mounted or a using effect cannot be achieved after the water-proof cover is mounted because the cable body is not in the middle of the pre-embedded pipe during practical mounting is solved.
Owner:LIUZHOU OVM MASCH CO LTD

Underwater wet-mate connector

The invention discloses an underwater wet-mate connector. A casing is provided with a plugging passage which extends forwards and backwards, the casing is provided with an inserting opening which is positioned at the front end of the plugging passage and is used for enabling a contact part of an adaptive connector to be inserted into the plugging passage, a water through cavity is arranged in the plugging passage and is communicated with a water body outside the casing, an inserting hole sealing rod is arranged in the plugging passage along the front and back direction in a guiding and moving way, the front end of the inserting hole sealing rod is provided with a matching end surface which is in pushing matching with the contact part of the adapting connector, the interior of the plugging passage is provided with a sealing structure behind the inserting opening, an oil filling cavity is arranged between the sealing structure and the water through cavity in the plugging passage, a piston block which is used for separating the oil filling cavity from the water through cavity is arranged in the plugging passage in a sliding and sealing way, the back part of the inserting hole sealing rod and the contact part are respectively arranged in the oil filling cavity, the back end of the inserting hole sealing rod is in driving connection with the piston block through an elastic part, and a floating block is connected with a reset spring. The underwater wet-mate connector effectively solves the problem of unreliable sealing of the existing underwater wet-mate connector.
Owner:CHINA AVIATION OPTICAL-ELECTRICAL TECH CO LTD

Damage patching and repairing method based on memory alloy and for expandable tubular

The invention relates to a damage patching and repairing method based on memory alloy and for an expandable tubular. The problems of complicated mechanisms, poor corrosion resistance, low constructionefficiency and downhole accidents prone to occurring in an existing construction method are solved. The damage patching and repairing method comprises the steps that (1) a memory alloy expandable tubular damage patching tool is selected or prepared; (2) a casing milling or shaping tool is lowered in advance to perform reshaping and cleaning on unsuitable positions; (3) the memory alloy expandabletubular damage patching tool is placed in a low temperature environment, the uniform stress is applied at both ends of the memory alloy expandable tubular damage patching tool to lengthen the memoryalloy expandable tubular damage patching tool; (4) the memory alloy expandable tubular damage patching tool and a heating rod disposed in the memory alloy expandable tubular damage patching tool are lowered and sent into the damaged expandable tubular together; (5) after installation in place is completed, the heating rod is energized by a cable; and (6) after the memory alloy expandable tubular damage patching tool is completely deformed, the heating rod is powered off and taken out, and patching and repairing of the damaged expandable tubular is completed.
Owner:CNPC TUBULAR GOODS RES INST +2
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