238results about How to "Low post-maintenance costs" patented technology

The invention discloses a structure self-heat-insulation concrete composite wall plate and a manufacture method thereof. The wall plate comprises an internal concrete layer, an heat insulation core board, an external concrete layer and a reinforcement cage, wherein, the heat insulation core board is arranged between the internal concrete layer and the external concrete layer; an oblique reinforcement cage passing through the heat insulation core board connects the internal concrete layer and the external concrete layer into a whole; the reinforcement case comprises a reinforcement cage of the internal concrete layer, the oblique reinforcement cage and a reinforcement net of the external concrete layer. The wall plate concerns the 'heat bridge' effect passing through the oblique reinforcement of the heat insulation core plate, and ensures that the content of the heat insulation core plate can be determined by thermodynamic engineering performance of the composite wall plate. The wall plate can be manufactured flexibly and conveniently, can meet the requirement of building energy-saving design standard without an extra heat insulation measurements, overcomes the defects of external heat insulation of the prior external building wall, ensures the same service life of building heat insulation and main structure, reduces later maintenance cost for the heat insulation system of the building, is in accordance with the policies of energy conservation, emission reduction and sustainable development in China, and has good economic and social benefits.

The invention provides an environment-friendly inorganic soil solidification additive which comprises, by mass, 15-65% of sulfate, 15-65% of halide salt, 11-40% of phosphate, 5-30% of silicate, 0-25% of carbonate, 0-18% of basic oxide and 0-10% of lignosulfonate. The environment-friendly inorganic soil solidification additive is characterized in that all components in soil directly or indirectly undergo soil particle surface chemical modification and modification of substances among soil particles, and generation of colloidal gel materials and generation of various materials of crystal structures are promoted. As time goes, hardened skeletons such as ettringite needle-shaped crystals and apatite crystals appear gradually in solidified soil, soil solidification compressive strength, hydrophobicity, water permeability, stability of heavy metal and other harmful materials and other physical and chemical solidification effects are good, and the environment-friendly inorganic soil solidification additive can adapt to various climates, geographies and soil properties and is high in compatibility and obvious in stabilization and solidification effect on heavy metal and other harmful materials.

The invention provides a device and a method for measuring a furnace top charge level of a bell-less blast furnace. The device comprises a blast furnace stock rod device. A stock rod is provided with a laser range finder, a gyroscope and a wireless communicator; the laser range finder and the gyroscope are arranged on the same plane in parallel side by side and form the same fixed included angle with the vertical charge level of the blast furnace stock rod device; and measurement data signals are sent to an external computer by the wireless communicator. The measurement method comprises the following steps: (1) starting all devices to enable the laser range finder to move downwards along the stock rod; (2) sending the measured data to the computer, and saving the descending height data ofthe stock rod to the computer; and (3) carrying out calculation by the computer by utilizing a trigonometric function formula, and saving a result. By adopting the device and the method for measuringthe furnace top charge level of the bell-less blast furnace, the multi-angle omnibearing stereoscopic measurement can be carried out on the shape of the furnace top charge level of the bell-less blast furnace without modifying furnace top equipment or mounting auxiliary measurement equipment. Moreover, the measurement process is safe and reliable, the measurement result has high precision, and the real-time performance is strong.

The invention discloses a construction process of a rubber powder modified asphalt pavement. The process comprises steps as follows: quality control of raw materials, production and mixing of a rubberpowder modified asphalt mixture, transportation, paving, rolling and joint treatment. The rubber powder modified asphalt is prepared from waste tire rubber powder and is applied to highway construction, so that the quality of ordinary asphalt can be effectively improved, the pavement use performance can be improved, the engineering construction cost can be reduced, and the project investment is saved. The rubber powder modified asphalt mixture is designed on the basis of a GTM design method, technical advantages of materials can be fully played while the use amount of asphalt is reduced, thepavement performance can be notably improved, and the later maintenance cost can be reduced. In combination with the construction characteristic of the materials and in dependence on solid engineering, the proper construction process and quality control key points for the rubber powder modified asphalt mixture are proposed, and referential experience can be provided for future pavement construction of the rubber powder modified asphalt pavement.

A seismic-reducing floor slab with cavities is characterized by comprising a floor slab (1), at least one cavity (2) preserved in the floor slab (1), and at least one damper (3) preset in the cavities (2). The dampers are scattered and distributed in the cavities of the floor slab so that the great benefit is to achieve seismic reduction and disaster prevention without affecting functional use of a building, and the seismic-reducing floor slab with cavities has the advantages of low manufacturing cost, easiness in construction, no maintenance and the like. The seismic-reducing floor slab with cavities has a fine seismic reducing effect for distance earthquakes, near earthquakes and even seismic centers.

The invention discloses an elevator ceiling arranged on a top plate of an elevator car. The elevator ceiling comprises a framework and lighting devices, wherein the framework comprises two fixing frames, two connecting frames and a plurality of lighting device mounting crossbeams; the two fixing frames are parallel to each other, and are respectively detachably connected with the top plate of theelevator car; the two connecting frames are parallel to each other and are respectively detachably connected with the two fixing frames; the lighting device mounting crossbeams are arranged between the two connecting frames, and are respectively detachably connected with the two fixing frames; and the lighting devices are arranged on the lighting device mounting crossbeams. The elevator ceiling has the advantages that: the height space of the elevator car is promoted in the aspect of vision, the appearance is attractive, the lighting efficiency is high, the elevator ceiling is convenient to detach and transport, light-emitting diode (LED) devices are suitable to be adopted and the maintenance cost is low.

The invention belongs to the field of cement mortar preparing, and particularly relates to high-tenacity crack-resistant grouting cement mortar and a preparing method thereof. The mortar comprises 80-100 parts of cement, 120-180 parts of 50-200-mesh silver sand, 20-50 parts of water, 5-10 parts of polyurethane solutions, 5-10 parts of epoxy resin emulsion, 10-15 parts of toughening composite materials, 1.5-6 parts of early strength agent, 2-9 parts of methacrylic acid, 2-6 parts of calcium formate, 2-8 parts of neopentyl glycol, 0.2-0.8 part of sodium dodecyl benzene sulfonate and 0.9-2.4 parts of water reducing agent. As toughening composite materials are added into the cement mortar, whole concrete has good tenacity, good isotropy and good fatigue resistance, the crack resistance of the grouting mortar is better facilitated, tenacity is improved, and the later-period maintenance cost of engineering is reduced.

The invention discloses a vacuum preloading and soil body surface solidification combined processing technique. The vacuum preloading and soil body surface solidification combined processing technique includes the following steps that A, a vertical water discharging plate is arranged in a hydraulic reclamation mud/sludge/waste mud pit; the upper end of the vertical water discharging plate is connected with a water discharging pipeline; the water discharging pipeline is connected with the outside; sealing cloth coves the top of soil in a vacuum preloading water reduction pit and the water discharging pipeline; the edge of the sealing cloth is sealed through a sealing structure and soil; a vacuum pump is connected with the water discharging pipeline and used for pumping water in the soil; B, after vacuum preloading is finished, the vacuum sealing cloth on the surface is removed; C, curing agents are added to the soil body on the surface layer and evenly distributed in the soil body on the surface layer; D, after a period of time, the soil body is solidified. The soil body processed through the technique is high in dehydration rate, short in work period and higher in strength after the soil body is processed.

The invention provides a distributed wireless access control system and an application method thereof. The distributed access control system comprises a network server layer composed of a network server and a third party platform interface, an area management layer composed of a local terminal connected with the network server in a TCP/IP manner and a ZigBee coordinator connected with the local terminal by virtue of a serial port, a ZigBee wireless network transmission layer composed of multiple ZigBee terminal nodes wirelessly connected with the ZigBee coordinator by virtue of a ZigBee routerand an access control node control layer composed of an access control node controller connected with the ZigBee terminal nodes by virtue of a serial port. The invention provides a flexible, effective, convenient and intelligent access control system, access control underlying data communication is realized on the basis of a ZigBee wireless sensor network, a distributed architecture is adopted, working areas can be independently managed by virtue of a local computer or tablet computer, multiple independent working areas also can be managed by virtue of a remote server, and independent workingareas also can operate normally when a remote management system is in fault.

The invention discloses a transfer station precision optimization method for an aircraft assembly large-size multi-station measurement field. The method is characterized in that on the basis of TB/ERSpoint and other transfer station reference points which are commonly used for aircraft assembly; A temporary transfer station enhancement point without a theoretical value is introduced, and two or more measurement stations are used for measuring the transfer station enhancement point at the same time, so that the transfer station adjustment constraint between the different measurement stations is increased, and the transfer station parameter variance-of the measurement stations towards the assembly global station is reduced. The covariance matrix improves the transfer station precision. Themethod is characterized in that 1) optimization of the transfer station precision is realized by increasing the arrangement number of transfer station reference points such as TB/ERS points, and the arrangement and later maintenance costs are greatly reduced due to the fact that transfer station enhancement points do not have theoretical values; 2) the transfer station enhancement point can be temporarily and flexibly arranged according to the measurement precision requirement difference of different areas of the to-be-measured component and the field measurement openness condition, so that the use is convenient;

The invention discloses a method for constructing external walls. The method includes steps of 1), arranging pouring formworks on two sides of each shear wall to be poured, and integrally connecting the pouring formworks on the two sides of each shear wall with each other by opposite pull lead screws; 2), pouring concrete between the formworks on the two sides of each shear wall, allowing the poured concrete to be formed to obtain the shear walls, detaching the opposite pull lead screws and the formworks on the two sides of each shear wall and allowing indoor and outdoor through holes to be formed in certain positions of the shear walls; 3), plugging opening ends of the outsides of the holes by rubber plugs; 4), injecting cement mortar or foaming agents in the holes from opening ends of the insides of the holes and enabling the holes to be compactly filled with the cement mortar or the foaming agents; 5), laying bricks to form brick walls between the adjacent shear walls and forming the integral external walls by the brick walls and the shear walls in an enclosed manner; 6), plastering internal wall surfaces of the external walls; 7), plastering external wall surfaces of the external walls. The opposite pull lead screws are detached from the certain positions of the shear walls. The method has the advantages that a process for plugging the holes is easy to operate and can be monitored, waterproof effects can be effectively guaranteed, the later maintenance cost can be saved, and the method has an excellent popularization and application prospect.

The invention provides an environment-friendly water permeable brick as well as a compression forming mould and a preparation method for preparing the environment-friendly water permeable brick. The water permeable brick is formed by a water permeable brick surface layer and a water permeable brick base layer, wherein materials of the surface layer mainly comprise sand with the particle size being 10 to 20 mesh and cement; materials of the base layer mainly comprise large gravel with the particle size being 3 to 8mm and cement. The method specifically the steps of adding the materials into two stirring machines respectively, adding other materials of corresponding formulas for evenly stirring, then compressing by a brick compression forming machine, distributing the base layer materials twice and the surface layer materials once in a lower mould hollow part of the compression forming mould, performing shaking compression for 2 to 3s after each time of material distribution, thus preparing a formed green brick, and then performing curing to form the water permeable brick. A dry-press forming process is adopted to prepare the water permeable brick, so that the production cost and the energy consumption are reduced; the prepared water permeable brick has good water permeability, abrasion performance, skid resistance and crushing resistance.

The invention discloses a non-destructive bridge deck concrete pavement layer crack treatment construction method. the method comprises the following steps: (1) carrying out surface sealing treatmentfor cracks with a width not greater than 0.15 mm, sealing with special epoxy resin glue or cement slurry, spreading a layer of hot asphalt after surface sealing, and laying anti-cracking base cloth for waterproofing treatment; (2) For the cracks between 0.15 mm and 3 mm in width, the epoxy resin glue is poured into the cracks by pressure grouting method. The technological steps are as follows: design hole arrangement-drilling -air blowing hole cleaning-embedding needle and sealing cracks-preparing grouting fluid-grouting-inspection. The invention aims at overcoming the shortcomings of the prior bridge deck concrete pavement layer that the structure is safe, dust and construction waste are caused, the construction cost is high, and the effect is not ideal, and provides a non-destructive bridge deck concrete pavement layer crack treatment construction method with low cost of crack treatment, environmental protection safety and reduced maintenance cost in the later period.

The invention discloses a bearing platform waterscape including stainless steel sheets, a pool surface stone material(2), a stainless steel frame (3), a stainless steel structure (5), a concrete pool wall (12) and a concrete floor plate(13); a broken stone hardcore (11) and a concrete leveling layer (10) are paved successively on the concrete floor plate (13); the stainless steel structure (5) is mounted on the inner side of the concrete pool wall (12), is fixed onto the concrete leveling layer (10), and is connected by a pre-embedded part; the stainless steel sheets are laid on the surfaces of the concrete leveling layer (10), the stainless steel structure(5) and the concrete pool wall (12) to form a stainless steel liner(4) through welding. The bearing platform waterscape solves the difficult problems of easy leakage of traditional waterproof construction of a pool, repair difficulty after the leakage, and the like, reduces the later repair costs of the pool, and fundamentally eliminates water leakage, water seepage and other hidden troubles of an indoor pool.

The invention provides a road information real-time monitoring and display system, at least comprising: an environment detection module used for collecting road information and including a gas detection device, a temperature and humidity sensor, a noise sensor and a water level sensor; a data collection module used for receiving the output signal of the environment detection module; a central processing module used for receiving the output signal of the data collection module; a backstage control module used for carrying out data communication with the central processing module; a column usedfor providing an installation support for the environment detection module, the data collection module and the central processing module; a display module used for displaying the road information; anda power supply module used for providing power for the environment detection module, the data collection module, the central processing module and the display module. With the system adopted, whetherthe amount of a specific pollutant exceeds the standard, the pollution law and the level of water on the road can be known, and a scientific basis is provided for the monitoring, evaluation and prevention of air pollution to urban roads and the work of flood prevention and water logging prevention. The road information real-time monitoring and display system has good social benefit.

The invention discloses a method for relieving annular belt pressure of natural gas and a gas storage well. The method comprises the following steps that according to the sizes of a production casing and an oil pipe, the size of an annular clearance, the well depth and the formation pressure, by predicting the change values of the temperature and pressure of the natural gas during production, the amount of expansion or contraction, caused by the temperature and pressure effects, of protection liquid, the production casing, the oil pipe and the like is calculated; according to a calculated result, inert gas (such as nitrogen) with a certain length and pressure is injected into a wellhead portion in an annular space between the production casing and the oil pipe; when the temperature and pressure of the natural gas in the oil pipe rise or drop, the production casing and the oil pipe expand or contract, and meanwhile expansion or contraction of the protection liquid in the annular space can also be caused; the change causes compression or expansion of the inert gas (such as nitrogen), but the pressure at an annular wellhead does not change obviously, so that wellhead equipment, the production casing, the oil pipe, a sliding sleeve, a packer and the like are protected.

The invention provides a color temperature calibration method and a mobile terminal, and the method comprises the steps: detecting whether color decay happens to a to-be-calibrated display screen or not; obtaining the current RGBW data of the display screen when the color decay is detected to happen to the to-be-calibrated display screen; adjusting the RGB components according to the current RGBWdata and a predetermined color temperature, wherein the RGB components are the basis that the display screen displays a white picture. Therefore, the calibration operation of the color temperature isnot carried out at the display screen according to the scheme of the invention, but is carried out at the mobile terminal side, so MTP does not need to be carried out in the whole calibration processfor many times, thereby saving the subsequent maintenance cost, and simplifying the complex operation.

The invention relates to a windproof dust inhibiting net which is integrally in a net-wall structural form. The windproof dust inhibiting net comprises a ridge wall, a plurality of capped piles, a steel support and a windproof net piece, the ridge wall is built on a foundation by adopting bricks, the capped piles are arranged on the side face of the ridge wall, height of the ridge wall is larger than that of each capped pile, the steel support is fixedly mounted on the capped piles by adopting embedded anchor bolts, the ridge wall is in a form that a brick-built wall body is combined with a capping beam, the steel support is formed by welding H-shaped steel columns and seamless steel pipe inclined struts, a reinforcing plate and a supporting plate are welded on the H-shaped steel columns, a steel tie bar and a steel brace are arranged in span of the steel support, and the windproof net piece is fixedly mounted on the steel support by adopting a self-tapping screw. The windproof dust inhibiting net is firm in structure, good in windproof effect, low in anticorrosion measure and subsequent maintenance cost and suitable for coastal or humid areas and reaches 95% in dust inhibiting rate.

The invention discloses a mold for the production of concrete pipes. The mold may include a cylindrical mold main body, the cylindrical mold main body is made of a steel plate rolled into a circle and has two ends open; the outer side of the cylindrical mold main body is provided with a plurality of Annular reinforcing ribs and multiple transverse reinforcing ribs and/or multiple longitudinal reinforcing ribs; the main body of the cylindrical mold is provided with a hoisting turning shaft. The mold for concrete pipe production provided by the application has the advantages of less investment, high efficiency, energy saving and environmental protection, and low maintenance cost in the later period. The mold continues to use the mature suspension roller process, and also combines the advantages of mandrel vibration and radial extrusion for vertical maintenance and quick demoulding, ensuring that customers have less investment, do not violate environmental protection, low maintenance and maintenance costs, and produce high-quality products. The product is of good quality. So that customers in need can achieve high-efficiency production mode on the basis of small investment in suspension roller technology. It is worth promoting and using on a large scale.

The invention relates to the technical field of logistics and warehousing, and particularly to a warehousing method and device of intensive warehouses with cargo pallet for storage, warehousing and ex-warehousing. The warehousing device comprises parallel multilayer through storage channels supported by beams and vertical posts, wherein a warehouse entrance and a warehouse exit are arranged at two ends of each through storage channel; an unpowered roller way and an orbit having a certain included angle alpha with a water level are arranged inside each through type storage channel; each orbit is provided with a tablet shuttle car; and a deceleration separation device is arranged at the terminal end of each orbit close to the warehouse exit. The tablet shuttle car is adopted to convey a cargo pallet so as to put the cargo pallet into the warehouse; and a gravity conveying type intensive warehousing way is adopted for warehousing and ex-warehousing. According to the invention, stability and effectiveness of cargo pallet in-warehousing, intensive warehousing and ex-warehousing are guaranteed, cost is lowered, convenience is brought about to the later-period maintenance, and market promotion is facilitated.