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

The invention provides a sintering smoke treatment system and a sintering smoke treatment mode, which are used in synchronized desulfuration, denitration, purification and acid making. The sintering smoke treatment system comprises a smoke system (1), an ammonia filling system (2), a smoke treatment system (3) and an acid making system (5), wherein the smoke system (1) comprises a main exhaust fan (11) and a chimney (12), the smoke treatment system (3) comprises an adsorption tower (31) and an analyzing tower (32), and the adsorption tower (31) and the analyzing tower (32) are connected with each other. The main exhaust fan (11) of the smoke system (1) and the chimney (12) are respectively connected with the adsorption tower (31), the analysis tower (32) of the smoke treatment system (3) is connected with the acid making system (5), and the adsorption tower (31) of the smoke treatment system (3) is connected with the chimney (12) of the smoke system (1).

The invention relates to a general technology of wheeltrack magnetic suspension, belonging to the technical field of earthbased track traffic. The general technology of wheeltrack magnetic suspension mainly comprises a wheeltrack magnetic suspension dualpurpose trackway, an electromagnetic trackway, an electromagnetic switching turnout, a suspension-oriented technology and a matched train, and is characterized in that the wheeltrack magnetic suspension dualpurpose trackway can be mutually connected with a pure suspension trackway and a common wheeltrack trackway to form a trafficable trackway communication system; the corresponding position relationship of a long stator winding and a suspension trackway which are arranged in the pure magnetic suspension trackway is consistent with the position relationship of the long stator winding and the suspension trackway which are arranged in the wheeltrack magnetic suspension dualpurpose trackway; and the track space of two steel rails in a common wheeltrack trackway is equal to the track space of two steel rails in the wheeltrack magnetic suspension dualpurpose trackway. The general technology of wheeltrack magnetic suspension combines the wheeltrack technology with the magnetic suspension technology, is used for meeting the requirement of the long-distance high-speed transportation, and has the advantages of low construction cost, high versatility, energy saving, and environmental protection, etc.

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.

A heat-insulation fireproof integral wallboard is characterized in that a longitudinal steel wire mesh sheet (1) is fixedly connected with a transverse steel wire mesh sheet (2) to form a mesh, each two mesh sheets are fixedly connected by straight insert wires (3) and crossed insert wires (4), each mesh sheet is fixedly connected with concrete layers (6) and disposed in the middle of the concrete layers (6), and a heat-insulation layer (5) is fixedly connected between the concrete layers (6). Since the heat-insulation fireproof integral wallboard is manufactured by steps of manufacturing a steel wire mesh framework, a first concrete surface layer, a heat insulation layer and a second concrete surface layer, the wallboard is thin, light, high-rigidity and deformation-resistant, has effectively heat insulation and water protection effects, and is particularly suitable for the building industry.

The invention relates to the field of building construction, in particular to a water stopping device for a tunneling machine going in and out of a tunnel and a water stopping method. The water stopping device for the tunneling machine going in and out of the tunnel comprises at least one water stopping casing box with openings at the front part and the back part. The water stopping casing box isarranged at the periphery of a doorway part which is in an enclosure protection structure, is fixedly connected with the enclosure protection structure in a sealing way, and comprises a sleeve with openings at the front part and the back part and a freezing pipe. The freezing pipe is arranged on the inner wall of the sleeve, and is used for injecting refrigerant. A grouting pipe which is communicated with the inner cavity of the sleeve is arranged on the sleeve. The invention also discloses the water stopping method adopting the water stopping device. The freezing pipe can change mixed paste between the water stopping casing box and the tunneling machine or a pipeline into a freezing body. The freezing body can block off a leakage path, ensure that groundwater which possibly leaks can be frozen in time when the tunneling machine or the pipeline structure moves relative to the water stopping casing box, thereby achieving the purpose of water stopping.

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 provides a cast-in-place beam support truss integral dropping and dismounting tool and a construction method thereof. An integral beam support truss is suspended below a box girder through four dismounting tools. Each dismounting tool comprises a suspender, an upper bolster, a lower bolster, a carrying pole beam, an upper fixing bolt I, an upper fixing bolt II, a lower fixing bolt and two jacks. The integral beam support truss can be synchronously dropped to a height suitable for a crane or can be directly dropped on the ground for dismounting under the conditions that a construction site is narrow, land requisition and demolishing are difficult, the terrain is complex, the construction period is short, the working height is limited and the crane can not be in place, so safety risks caused by hoisting at high altitude are prevented; meanwhile, the dismounting efficiency of the support truss is improved. Through the adoption of the cast-in-place beam support truss integral dropping and dismounting tool and the construction method thereof, it only takes three hours to dismount the beam support truss, the dismounting speed is greatly lowered, the crane cost and labor cost are saved, the construction site is reduced, and the effects of energy conservation, emission reduction and environment protection are achieved.

The invention mainly discloses a foundation pit construction method. In the method, steel sheet piles are used as the supporting structures along the inner diameter of the foundation pit, the earth is excavated downwards and then the inner supports in the steel sheet piles are kept not deformed by support until the bottom of the foundation pit is sealed. The foundation pit construction method has the following advantages: the steel sheet piles have lighter weight, are simple and convenient to construct and dispense with huge construction equipment; the foundation pit has small floor area and can reduce the construction land to the greatest extent during shortage of construction sites or construction in cities; pollution to the surrounding environment can not be produced and the method has environment-friendly characteristic; construction is fast, the construction efficiency is high and the construction period can be greatly shortened; the steel sheet piles have good interchangeability and watertightness; the method can ensure the whole maintenance structure to be more economic and reasonable while meeting the requirements of different geology, depth and supporting structures by changing the section shapes and the length of the steel sheet piles.

The invention discloses an industrialized energy-saving building which comprises a load-carrying frame, an enclosing exterior wall, a floor cover slab and a roof cover plate; the enclosing exterior wall is formed by the assembly of entirely prefabricated composite exterior wall boards and fixed on the load-carrying frame of a main body by a shock-resistance and energy-dissipation connecting part. The building is an industrialized energy-saving building which lessens construction energy consumption, water consumption and work area, saves construction material, reduces construction noise and the influence of dust on the environment and the ecology, shortens the construction period, has function of shock resistance and energy dissipation and is capable of saving energy, material, water, land and protecting environment.

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 discloses a three-dimensional automatic container wharf. The container wharf comprises a container yard, a lower-layer horizontal transportation operation area and an upper-layer container truck transportation operation area which are located between the wharf and the container yard. The container yard is divided into an upper layer and a lower layer; the lower layer comprises an interaction area of an automatic double-cantilever portal crane and automatic horizontal transportation equipment and an automatic horizontal transportation equipment lane; and the upper layer comprisesan interaction area, parallel to a container area, of the automatic double-cantilever portal crane and a container truck. The lower-layer horizontal transportation operation area comprises an interaction area of a quay crane and the automatic horizontal transportation equipment, an automatic horizontal transportation equipment parking area, and an automatic horizontal transportation equipment high-speed operation area; and the upper-layer container truck transportation operation area comprises an interaction area of the quay crane and the container truck and a container truck high-speed lane.The occupied area of a wharf depth shoreline is reduced in a double-layer three-dimensional framework form, the space can be effectively utilized, the harbor gathering and harbor dredging time is shortened, the harbor gathering and harbor dredging traffic pressure is relieved, and the operation distance and time of a receiving and dispatching box are reduced, so that the wharf operation efficiencyis improved.

The invention discloses a watertight device of a heating machine for passing in and out a door opening. The watertight device is used for a working well which is provided with an enclosure structure, the enclosure structure is provided with the door opening, the watertight device comprises a freezing pipe for injecting a refrigerant, the freezing pipe is partially or fully wound around the inner wall of the door opening, and the enclosure structure is also provided with a grouting pipe communicated with the space encircled by the freezing pipe. The invention also discloses another watertight device of the heading machine for passing in and out an door opening, wherein the watertight device is used for a working well which is provided with an enclosure structure, a lining structure is arranged at the inner side of the enclosure structure and provided with the door opening, the watertight device comprises a freezing pipe for injecting a refrigerant, the freezing pipe is partially or fully wound around the inner wall of the door opening, and the lining structure is also provided with a grouting pipe communicated with the space encircled by the freezing pipe. On the premise of meetingwatertight requirement on the heading machine for passing in and out the door opening, the invention fully utilizes the space of the enclosure structure or the lining structure to reduce or avoid theinternal working well space occupied by the watertight device for passing in and out the door opening.

The invention discloses a three-pipe culvert incremental launching construction device and method. The construction device comprises an initial incremental launching equipment air compressor, a control valve and a plurality of sets of lining rubber rings; and the construction method comprises an initial incremental launching stage and a three-pipe incremental launching stage. During the initial incremental launching stage, a lining of the culvert entrance section is incremental launched for a distance by a hydraulic cylinder and rubber rings and enters into the three-pipe incremental launching stage; and after entering into the three-pipe incremental launching stage, every three linings are divided into a group and alternately move forwards under the pressure of the recirculate selected three tubes. According to the three-pipe method culvert incremental launching construction device and construction method, the obstruction of the culvert length to a traditional construction method is overcame, the movement of the hydraulic cylinder caused by a traditional incremental launching construction method is avoided, the culvert incremental launching construction is promoted to develop in the direction of mechanization, and the input of the linings is continuous. Therefore, the influence of the construction method on the culvert, the uplink rail of culvert and the road is greatly reduced.

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 heat-insulating external wallboard, which is characterized in that one side of a steel wire rack framework (2) is fixedly connected with an outdoor surface concrete layer (1), and the other side of the steel wire rack framework (2) is fixedly connected with an indoor surface concrete layer (5); the inside of the outdoor surface concrete layer (1) is fixedly connected with a heat insulating layer (3); an air spacing layer (4) is formed between the heat insulating layer (3) and the indoor surface concrete layer (5). The heat-insulating external wallboard is manufactured by adopting the steps of forming the steel wire rack framework, manufacturing the outdoor surface concrete layer, forming the heat insulating layer, manufacturing the indoor surface concrete layer and plugging; therefore, the heat-insulating external wallboard can save a large amount of energy resources, has low cost and good heat insulating effect, can increase the net area and greatly shorten the construction period of the project, has the same heat insulating service life as that of the building, meet the structural performance requirements of high seismic resistance and high wind pressure resistance, can be widely applied to concrete framework structures, steel structures, steel-concrete structures and new rural construction engineering serving as the external wallboard.

The invention relates to a grain drying system employing high-voltage electricity to accumulate heat, and a drying method of the grain drying system. A heating energy storage body, a circulating heat release fan, a high-temperature heat exchanger, an air distributor, an air heater and a drying tower are sequentially connected according to a priority for realizing grain drying, wherein one end of the heating energy storage body is sequentially connected with a heat storage controller and a timing controller; a high-voltage switch is arranged at the other end of the heating energy storage body, and connected with a high-voltage grid; the high-temperature heat exchanger is sequentially connected with an air mixing device and a blower; the air distributor is connected with the air mixing device by a temperature controller; the upper end of the drying tower is connected with damp grain disposal and temporary storage conveying equipment; the lower end of the drying tower is connected with a dry grain inspection, conveying and storage facility; settlement devices are arranged at damp removal ends of the two sides of the drying tower. The drying system can reduce coal consumption and harmful gas emission; the method can effectively alleviate a power demand contradiction, lowers the drying cost, and is high-efficiency and environment-friendly.

The invention discloses a waterwheel type fishway. The waterwheel type fishway is characterized in that two fish inlet open channels are arranged at the downstream part of a dam; the fish inlet open channels are connected with fish inlet gates arranged at an outlet of a downstream river channel; two fish outlet open channels are arranged at the top of the dam; the fish outlet open channels are connected with fish outlet gates; two rails are parallelly arranged on an external slope of the dam; the upper ends of the rails are connected with the fish outlet open channels; the lower ends of the rails are connected with the fish inlet open channels; brackets and pulleys are arranged on the dam; a waterwheel is arranged on each of the rails; the two waterwheels are connected through a cable; the waterwheels respectively perform climbing and descending motion through the cable and the pulleys on the brackets; and when the waterwheel on one rail reaches the top of the dam and is tightly connected with the downstream ends of the fish outlet open channels, the waterwheel on the other rail descends and reaches the upstream ends of the fish inlet open channels. According to the waterwheel type fishway, the construction and maintenance cost is remarkably reduced, the engineering construction land is decreased, and besides, the consumption of water resource and electric energy is remarkably reduced.

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 the technical field of biomass boilers, and particularly relates to a biomass boiler. The biomass boiler comprises a boiler body, a combustion chamber, a moving grate, a feeding device, a boiler barrel, a first air inlet chamber, a second air inlet chamber and a smoke outlet, wherein the combustion chamber is arranged in the boiler body, the moving grate is arranged at the bottom of the combustion chamber, the feeding device is arranged at the moving grate, the boiler barrel is arranged above the combustion chamber, the first air inlet chamber is arranged below the moving grate, the second air inlet chamber is arranged below a discharge port of the feeding device, and the smoke outlet is formed in the combustion chamber. The biomass boiler has the advantage of simple structure, and the feeding quantity can be adjusted at any time, so that the feeding quantity of materials is kept uniform and consistent, the boiler combustion level is consistent, the boiler combustion stability is increased, and the utilization rate of energy is effectively increased; additionally, the biomass boiler has an ideal dust removal effect, the energy is recycled, and the cost is reduced.

The invention discloses a biological purification system for treating black and odorous water of a riverway, and belongs to the technical field of water treatment. The system comprises a filtering area, an odor removal treatment area, an anaerobic treatment area, an aerobic treatment area, a precipitation separation area and a power supply assembly, wherein biological purification boxes are arranged at the anaerobic treatment area and the aerobic treatment area in the direction perpendicular to water flow respectively; a plurality of purification cavities are formed in the biological purification boxes in the horizontal direction; and a plurality of biological filler frames with the radiuses sequentially increased from inside to outside are arranged in each purification cavity. According to the method, in-situ remediation is carried out on the black and odorous water of the riverway, the existing riverway can be fully utilized, and the construction land is greatly saved; by arranging the multiple biological filler frames, the retention time of the river water body in the biological filler frames is prolonged, harmful substances in the water body can be fully degraded, the stabilityof the biological purification boxes is greatly improved through inserting anchors arranged at the bottom ends of the biological purification boxes, and the influence of impact force of water flow onthe installation firmness of the biological filler frames is avoided.

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.

The invention provides a granulation system for processing high-temperature molten slag. The granulation system is arranged inside a boiler hearth (8) and comprises a slag curtain forming device (2) and a granulating device (3); the slag curtain forming device (2) comprises an overflowing platform (21) and a sleeve (22); the overflowing platform (21) can be accommodated in the sleeve (22); a flow guide passage (23) is kept between the sleeve (22) and the overflowing platform (21); the high-temperature molten slag flows out of the flow guide passage (23) to form a circular slag curtain; the upper end of the sleeve (22) is higher than that of the overflowing platform (21); the granulating device (3) comprises a chamber body (31) and a nozzle (32) which communicates with the chamber body (31); the nozzle (32) faces to the slag curtain flowing out of the flow guide passage (23); fluid ejected from the nozzle (32) is in a circular ring shape and is matched with the circular slag curtain flowing out of the flow guide passage (23). The granulation system provided by the invention has the advantages of preventing harmful gases from being exhausted to air directly, also guaranteeing the uniformity of granulated particles and enhancing the granulation effect.