149results about How to "Reduce construction land" patented technology

The invention discloses a widening subgrade structure based on an existing railway subgrade. The widening subgrade structure comprises a step arranged on the side slope of the existing railway subgrade, an inverted filter arranged on the step, and a retaining wall poured on the outer side of a widening railway embankment. The space between the inverted filter and the retaining wall is filled with light soil. A crack-prevention steel bar mesh is laid at the preset height in the light soil. A subgrade filler is constructed on the light soil. The invention further provides a widening subgrade method of the existing railway subgrade. According to the subgrade widening structure based on the existing railway subgrade, the load of the widening subgrade can be reduced greatly through the characteristic of small density of the light soil, the stability of the widening subgrade is improved, and extra sedimentation of a railway operation subgrade is reduced. Through the retaining wall on the outer side of the light soil, the usage quantity of the light soil can be reduced, construction land is saved, and the retaining wall can serve as a template for construction of the light soil.

The invention relates to rolling stock repair equipment, in particular to a fixed train lifting overhauling device with a complete train weighing function. The fixed train lifting overhauling device mainly comprises a bogie lifting mechanism, a train body lifting mechanism, steel structure carrying platforms and weighing unit modules. By the adoption of the overhauling device, an complete train can be lifted through the bogie lifting mechanism and the train body lifting mechanism under the condition that the complete train is not disassembled, any bogie of the train can be disassembled and replaced, electrical facilities on the lower portion of a train body can be overhauled and replaced, the axle weight, the bogie weight, the complete train weight, the side edge weight, the single wheel weight average value and the complete train gravity plane coordinates of the train can be measured under the condition that the station is not changed, and therefore the operations such as train lifting and spring adjustment can be further conducted on the same station.

The invention discloses a biomass boiler system capable of saving energy and reducing emission, comprising a dry feeding device, a boiler body, an air preheater and a water supplying preheater. The dry feeding device comprises a spiral feeder and a rotary drier, and the spiral feeder is arranged in the drying chamber in the rotary drier. The boiler body comprises a boiler furnace and a combustion chamber which are mutual connected, the material output end of the spiral feeder is arranged at the material inlet of the boiler furnace, and an exhaust gas outlet is arranged above the rotary drier. The top of the combustion chamber is connected with one end of the flue gas pipeline, the air preheater is arranged on the flue gas pipeline, the other end of the flue gas pipeline is connected with the inlet of a dust precipitation device, and the outlet of the dust precipitation device is connected with the exhaust gas inlet of the drying chamber. A mixing exhaust gas inlet is arranged on the lower side at one end of the water supplying preheater, an exhaust gas outlet is arranged on the upper side at the other end, and the exhaust gas outlet is connected with the mixing exhaust gas inlet. The system of the invention can recover 6 to 8% of the waste heat of the boiler flue gas, and has the advantages of energy saving, environmental protection, safety, and less requirements on the water content of the raw materials.

The invention relates to an oil refining catalyst wastewater zero-discharging treatment method. The oil refining catalyst wastewater zero-discharging treatment method comprises the following steps that (1) oil refining catalyst wastewater is treated in a high-density sedimentation tank to obtain sedimentation wastewater; (2) the sedimentation wastewater is fed into a multi-media filter to obtain produced water of the multi-media filter; (3) the produced water of the multi-media filter is fed into an ultra-filtration system and is further treated to obtain ultra-filtration water; (4) the ultra-filtration water is regulated to be weak-acidic and then is fed into a sea water desalination type reverse-osmosis system, and reverse-osmosis concentrated water is obtained through treatment; (5) the reverse-osmosis concentrated water is fed into an efficient electrodialysis system for concentration or into a conventional reverse-osmosis system for reverse osmosis respectively according to the salt content of the reverse-osmosis concentrated water; (6) the electrodialytic concentrated water is fed into a mechanical vapor compression (MVR) evaporator for concentration, the concentrated liquid is fed into a waste heat multiple-effect evaporative crystallization system, further evaporative concentration and crystallization are conducted on the concentrated wastewater, centrifugal dewatering is conducted on the concentrated liquid to obtain solid salt for recycling, and the produced water is reused. The oil refining catalyst wastewater zero-discharging treatment method is obvious in treatment effect and low in operation cost.

The invention discloses a non-excavation directional drilling construction method for a municipal pipeline. The non-excavation directional drilling construction method for the municipal pipeline is mainly suitable for carrying out laying construction when various pipelines cross rivers, roads, buildings and other obstacles and an open excavation manner cannot be applied; the laying pipe diameter is 50 to 600mm; and the laying distance is 50 to 200m. The construction process comprises the steps of preparing for construction; designing a trace; staking out in survey; constructing a working pit;positioning and debugging a directional drilling machine; preparing a slurry; drilling a guiding hole; chambering step by step; welding and reinforcing a pipeline, and pulling back the pipeline; constructing an inspection well; and backfilling a foundation pit. According to the construction method provided by the invention, without influencing the original physiognomy, road traffic, river running,and greening vegetation, the penetration problem caused by the existence of a complete building at the original design pipeline excavation section is quickly solved, so that the construction land isreduced, the construction period is shortened, the construction efficiency is improved, the personnel investment is reduced, the investment cost is saved, and the laying direction, the laying depth and the laying accuracy of the pipeline are improved.

The invention relates to a comprehensive pipe gallery modeling method based on BIM, and belongs to the technical field of building modeling. The comprehensive pipe gallery modeling method comprises the following steps: step 1, drawing problem carding; step 2, preliminary modeling, wherein preliminary model design is conducted through Revit according to a two-dimensional construction drawing made through CAD and the stored data; step 3, collision inspection: discovering collision through Luban BIM Works and carrying out pipeline comprehensive optimization, wherein a pipeline avoidance principleis adopted during collision; step 4, net height and clearance inspection; 5, construction section division, wherein corresponding construction section organization construction is divided according to the underground structure distribution situation of the comprehensive pipe gallery; step 6, earth excavation based on the BIM technology; step 7, construction site simulation; and step 8, roaming. The comprehensive pipe gallery modeling method has the advantages that the comprehensive pipe gallery construction problem is estimated in advance, so that the project implementation risk is integrallycontrolled.

The invention discloses a high-speed railway and a wheel-rail train, which belong to the technical field of track traffic. The high-speed railway is basically characterized in that electric wires of a linear motor are used to substitute a contact net so as to reduce the maintenance work needed by the contact net due to the abrasion; and the safety of the peripheries of the train and the railway is ensured through concrete side rails. The wheel-rail train is basically characterized in that: the train ensures that train wheels and ferromagnetic metal rails do not break away from each other through the mutual attraction of attraction magnets and the metal rails to ensure the safety of the train during high-speed driving. The dispersed arrangement of rotor magnets on the train makes the power dispersed, and the working electric power used on the train comes from a generator driven by the partial train wheels which roll on the wheel rails during the driving. The high-speed railway and the wheel-rail train are novel track traffic technology which is between wheel rail technology and magnetic suspension technology, integrates the advantages of the wheel rail technology and the magnetic suspension technology, is superior to the wheel rail technology and the magnetic suspension technology, and have the advantages of safety, high speed, environmental protection, and the like.

The invention relates to a method for producing multifunctional differentiated polyester fiber. The method comprises the following steps that raw materials of purified terephthalic acid and ethylene glycol are firstly subjected to an esterification reaction in an esterification kettle to obtain a dimethyl terephthalate oligomer, then mixtures obtained after different modifiers are added into the dimethyl terephthalate oligomer on line separately through a pipeline are delivered to a first pre-polycondensation kettle, a second pre-polycondensation kettle and a third pre-polycondensation kettle separately to obtain pre-polymers of a certain viscosity, then the pre-polymers are delivered to a first final polycondensation kettle, a second final polycondensation kettle and a third final polycondensation kettle to obtain multifunctional and differentiated melt, and subsequently pelletizing or direct spinning is conducted. In the method for producing the multifunctional differentiated polyester fiber, a 'one head and three tails' technological process in a three-kettle procedure technology is adopted, the heat loss is effectively reduced, electric energy loss of electric equipment is reduced, more energy is saved, and the running cost is lower; the equipment layout is more compact, and the operation space is efficiently utilized.

The invention relates to a treatment process of sludge from a turbid circulating system of a steel enterprise hot rolling factory, and the process comprises the following steps: directly pumping sludge generated during water treatment of a turbid circulating system of a steel enterprise hot rolling factory into an oxide scale pit by a sludge pump, performing natural filtration to separate water from the sludge, mixing the sludge with coarse-grained oxide scale for outward transport together, allowing the water obtained after filtration to enter a whirling well at a low position in a gravity flow mode. Water in sludge is removed by the natural filtration of the oxide scale pit; the process is simple; the operation and management are very convenient; no mechanical equipment such as a filter press, a high-lift sludge pump, and the like is required; intermittent operation can be adopted, which saves a lot of water resources; a certain number of project construction land are saved; a lot of civil construction and equipment investment is saved; a lot of operation management cost is saved; a lot of energy consumption is saved; labor intensity of operators is greatly reduced; and secondary pollution caused in sludge treatment is prevented.

The invention discloses a bridge production system. The bridge production system comprises a bridge body steel bar binding area, a bridge body pouring area and a gantry crane arranged on the bridge body steel bar binding area and the bridge body pouring area in a striding manner, and the gantry crane is provided with a lifting and moving device. Compared with the prior art, various bridge body prefabricated web steel bar binding table bases are provided in the scheme, bridge body steel bar framework binding is normalized and standardized, consumption of labor force is greatly reduced, the construction period is shortened, and integrity is high. The various bridge body prefabricated web steel bar binding table bases are formed by splicing steel structural pieces and can be cyclically used, the usage number of the binding table bases is reduced, the construction using land is reduced, and convenience is provided for field management. Rubber drawing and pulling bar penetrating construction can be rapidly finished through a rubber bar drawing and pulling device, a prestress hole channel is embedded, the labor intensity is low, and the work efficiency is high. In a side beam pouring tool, a first supporting plate of an effective supporting part can be independent, the size is small, the mass is low, operation is more flexible and is gradually changed during demolding, and therefore damage to concrete can be reduced.

A hollow insulation cladding panel using a steel wire mesh frame and concrete is characterized in that one side of a steel wire mesh frame skeleton (2) is connected with an outdoor surface concrete layer (1), the other side is connected with an indoor surface concrete layer (4), an air insulation layer (3) is arranged between the outdoor surface concrete layer (1) and the indoor surface concrete layer (4), a thermal insulation air-proof plugging layer (5) is arranged in a cavity surrounding the wall board and a cavity surrounding the door and window, and a thermal insulation flame-resistant plugging layer (6) is fixedly connected with the outside of the thermal insulation air-proof plugging layer (5). The preparation method comprises the following steps: forming the steel wire mesh frame skeleton, preparing the outdoor surface concrete layer, preparing the indoor surface concrete layer and plugging. Therefore, lots of energy resources are saved, the cost is reduced, the thermal insulation effect is good, the usable floor area is increased, the project construction period is largely reduced, the thermal insulation life is equal to the service life of the building, the structural and performance demands of high earthquake resistance and high air pressure resistance can be satisfied and the product of the invention can be used as the cladding panels of concrete frame structures, steel structures, reinforced concrete structures and new rural construction projects.

The invention relates to an air relay type hoisting method of a roofing colored plate of a food refrigeration house. The air relay type hoisting method comprises the steps that 1) a scaffolding platform is built on one side of the food refrigeration house; 2) steel wire rope guide rails are arranged; 3) a hoisting and swinging device consists of a winch, a hoisting steel pipe, a hoisting steel wire rope and a bracket; 4) the roofing colored plate is entirely hoisted onto the bracket, the bottom of the roofing colored plate is supported by a supporting plate, the upper part of the roofing colored plate abuts against the hoisting steel wire rope, after the roofing colored plate is placed stably the roofing colored plate and the bracket are bound firmly, then the winch is started, hoisting force is applied through the hoisting steel pipe uniformly, and the roofing colored plate is entirely and steadily moved upwards till arriving at the scaffolding platform; and 5) through manual assistance, the roofing colored plate is transversely moved along the second section of the steel wire rope guide rail, and the step 4) is repeated. The air hoisting problem of the overlong roofing colored plate is solved, the roofing colored plate is free from damage in the hoisting process, and the air relay type hoisting method is convenient to implement, high in efficiency and good in economy and has popularization value.

The invention provides an integrated direct-current charging station electrical topology and an operation control method thereof. The integrated direct-current charging station electrical topology comprises a power supply side direct-current bus connected with a direct-current source, K discrete charging pile units and a mutual-aid total direct-current bus, each charging pile unit comprises an input direct current bus, a mutual-aid sub direct current bus, an output direct current bus, N isolation branches, a non-isolation DC/DC module and an output terminal; the input direct-current bus of each charging pile unit is connected with the power supply side direct-current bus, and the mutual-aid sub direct-current bus of each charging pile unit is connected with the mutual-aid total direct-current bus; each isolation branch has the same configuration and comprises an output branch and a mutual assistance branch; when all the output branches in the charging pile units connected with the electric vehicle are started, and the output power cannot meet the power demand of the electric vehicle, the power demand of the electric vehicle is met by starting the mutual-aid branches of other charging pile units.

The invention discloses an ecological circulating beef cattle culturing farm building method and a system. The building method comprises steps of (A) selecting a site for a beef cattle culturing farm, (B) building cattle houses, (C) building a fertilizer pool, (D) arranging liquid fertilizer discharging pipes, wherein in the (C) step, the fertilizer pool has two layers: the lower layer is a liquid fertilizer pool and the upper layer is a solid fertilizer pool; and in the (D) step, the liquid fertilizer pipes are orderly installed on the liquid fertilizer pool wall. A water source is connected with a food tank in the cattle house via a water pipe; the solid fertilizer pool is connected with the liquid fertilizer pool; bovine urine discharging trenches in the cattle house are connected with the lower layer liquid fertilizer pool via plastic pipes; the liquid fertilizer pool is connected with an agricultural land orderly via a liquid fertilizer discharging pipe, a valve, a filter device, an air valve, a pressure adjusting valve, a master pipe, branch pipes, a valve, flow meters and plastic drip-irrigating pipes. The ecological circulating beef cattle culturing farm building system is simply structured and can be conveniently used; beef cattle growth can be facilitated; and the ecological circulating beef cattle culturing farm building method and system are suitable for application in low mountains and hilly areas.