47results about How to "Reduce land acquisition costs" patented technology

The invention provides a sewage treatment system capable of improving concentration of activated sludge, and a technology of the sewage treatment system, and relates to the technical field of sewage treatment. The sewage treatment system and the technology aim at solving the problems that the existing sewage treatment technology is low in solid-liquid separation efficiency and poor in sludge thickening effect, microorganism in a biochemical reaction tank difficultly maintains higher concentration, the treatment capacity is low, and a gravity sedimentation tank in a treatment system is low in surface load and large in floor area. The system comprises a denitrification and dephosphorization reaction unit and a solid-liquid separation unit connected in series with the denitrification and dephosphorization reaction unit, wherein the denitrification and dephosphorization reaction unit comprises an anaerobic zone, an anoxic zone and an aerobic zone which are sequentially communicated; an input end of the aerobic zone is communicated with an input end of the anoxic zone by a pipeline; the solid-liquid separation unit comprises a dissolved air deep tank and a flotation tank which are sequentially communicated; and an output end of the aerobic zone is communicated with an input end of the dissolved air deep tank. The technology comprises the steps of 1, anaerobic phosphorus release reaction, 2, denitrification reaction, 3, carbon oxidization, aerobic phosphorus absorption and nitration reaction, 4, deep tank air dissolution, and 5, solid-liquid separation. The system and the technology are particularly suitable for new construction of a continuous flow sewage treatment plant.

The invention relates to a triangular GIS outgoing line layout structure for a voltage grade of 500kV and below. Compared with the prior art, the defect that the GIS outgoing line layout structure is relatively low in utilization rate of floor area is overcome. A B-phase tension insulator string is arranged at a line outlet side of an upper triangular beam; a B-phase inverted post insulator is arranged at the lower part of the upper triangular beam; an A-phase tension insulator string and a C-phase tension insulator string are arranged at the line outlet side of a lower triangular beam; a B-phase cross-arm insulator is arranged at one side, opposite to the line outlet side, of the lower triangular beam; and a center point between the suspension point of the A-phase tension insulator string and the suspension point of the C-phase tension insulator string corresponds to a fixed point of the B-phase cross-arm insulator. The lateral dimension of a power distribution device area is reduced, so that the length of a main bus-bar cylinder of GIS equipment is reduced; the equipment cost is reduced; and the floor area of the equipment is saved.

The invention belongs to the field of oil fields and particularly relates to a long-transportation electromagnetic induction electric heat tracing and oil gas connecting system. According to the system, holes are formed in an original oil conveying pipeline in a segmented mode, the hole of each section of the oil conveying pipeline comprises a head end hole and a tail end hole, an electric heat tracing belt is input from the head end holes and output from the tail end holes, head and tail connectors are respectively connected with a pressure adjusting controller through a sealing device, and the pressure adjusting controller is connected with a power source; the holes are sealed fully; a temperature sensor is arranged on the oil conveying pipeline and used for sending collected temperature values of the oil conveying pipeline to the pressure adjusting controller; the pressure adjusting controller is used for inputting voltage under an instruction of a service controller to the electric heat tracing belt, collecting voltage, current and power values of the electric heat tracing belt, and transmitting the obtained temperature values and the voltage, current and power values to the service controller through a network; the service controller feeds a pressure adjusting instruction back to the pressure adjusting controller. The system is convenient to operate and long in service life.

The invention is a layer-assembled structure, in which a composite blade is made up of a blade and an integral central column assembled by a central support column and a blade support disk via a shaft coupling. The bottom of the central column is mounted on the base via a main bearing connected with the generator through a drive mechanism. The top of the central column is anchored via a cable fixator and a wind vane is disposed above the cable fixator. The sensor on the wind vane is connected with the composite blade via a control system.

The invention relates to an air-prepared horizontal positioned bridge construction, which comprises: first constructing the pier; constructing the gate steel truss whose height is the same with pier between two piers; the post of truss is on the pier support; the upper surfaces of steel truss and two piers form a prepared platform; then constructing the prepared beam on said platform; laying slide channel at the bottom of prepared beam to preset position via horizontal moving device; lifting the prepared beam and extracting out the slide channel to positioning the beam. The invention can avoid large mounting device, with simple operation, lower cost and short working time.

The invention discloses a technological process for floating oil delivering and settling dehydration of crude oil. The technological process comprises the following processes that: the crude oil containing water is conveyed in a joint station; medicine is added to the crude oil containing the water; then the crude oil containing the water is conveyed in a settling tank to carry out a oil-water separation to form a oil layer, a oil-water mixed layer and a sewage layer; a floating oil delivering apparatus is arranged in the settling tank, and the crude oil in the oil layer formed through the settling separation of oil and water is continuously and directly discharged from an oil inlet of the floating oil delivering apparatus and an oil line to complete the settling dehydration to be transformed into finished crude oil. According to the technological process provided by the present invention, a primary settlement or a secondary settlement formed through a series connection of two primarysettlements is adopted; the floating oil delivering apparatus is adopted for replacement of a fixed-type over flow device; the oil can be directly pumped through a oil pump, such that a surge tank iscanceled in the process; amount of the oil tank used in the single settlement is reduced by 50% compared to the amount of the oil tank used in a traditional process. Due to reducing the amount of theoil tank using in the process, the process is shortened. With the present invention, an operation is simple, management is easy, energy consumption in the production process is reduced, operation andrunning cost, management costs, capital expenditure and land expropriation cost are substantially decreased.

The invention provides a dumping site stacking and discharging method. The dumping site stacking and discharging method comprises the steps that an initial dam is built; a bottom seepage layer is laid on the upper layer of bedrock of the waste dump to serve as a seepage drainage channel at the bottommost part of the waste dump, and surface catchment of the waste dump is collected; stacking at least three rock layers; a mixed arrangement layer is stacked and arranged on the uppermost rock layer; an isolating layer is laid on the upper layer of the mixed arrangement layer; and repeating the steps. According to the dumping site stacking and discharging method, large stones are stacked between a bottom layer and a weathered mound by utilizing the high permeability of rocks, and the layers are isolated by the rock isolation layers, so that a vertical drainage and seepage system penetrating through the interior of the whole dumping site is formed, orderly discharging of weathered soil and the rocks is realized, and the utilization rate of the dumping site is improved; the overall stability of the dumping site is guaranteed, and construction cost is saved.

The invention discloses a technological process for floating oil delivering and settling dehydration of crude oil. The technological process comprises the following processes that: the crude oil containing water is conveyed in a joint station; medicine is added to the crude oil containing the water; then the crude oil containing the water is conveyed in a settling tank to carry out a oil-water separation to form a oil layer, a oil-water mixed layer and a sewage layer; a floating oil delivering apparatus is arranged in the settling tank, and the crude oil in the oil layer formed through the settling separation of oil and water is continuously and directly discharged from an oil inlet of the floating oil delivering apparatus and an oil line to complete the settling dehydration to be transformed into finished crude oil. According to the technological process provided by the present invention, a primary settlement or a secondary settlement formed through a series connection of two primarysettlements is adopted; the floating oil delivering apparatus is adopted for replacement of a fixed-type over flow device; the oil can be directly pumped through a oil pump, such that a surge tank iscanceled in the process; amount of the oil tank used in the single settlement is reduced by 50% compared to the amount of the oil tank used in a traditional process. Due to reducing the amount of theoil tank using in the process, the process is shortened. With the present invention, an operation is simple, management is easy, energy consumption in the production process is reduced, operation andrunning cost, management costs, capital expenditure and land expropriation cost are substantially decreased.

The invention discloses a three-dimensional automatic material supply and delivery system. The three-dimensional automatic material supply and delivery system comprises a material receiving pit arranged underground. A first transportation belt conveyor is arranged under a material outlet of the material receiving pit and penetrates through the ground upwards to be connected with a third transportation belt conveyor. A stocking yard is arranged under the third transportation belt conveyor. A first distributing trolley is arranged on the third transportation belt conveyor. A fourth transportation belt conveyor is arranged under the stocking yard and penetrates through the ground upwards to be connected with a sixth transportation belt conveyor which is connected with an air cooling bin. A seventh transportation belt conveyor is arranged under the air cooling bin and is in butt joint with an eighth transportation belt conveyor connected with the stirrer. By means of the three-dimensional structural design, concrete raw materials are automatically controlled to be delivered through the belt conveyors all the way, and accordingly the area of places required for stocking and feeding is reduced greatly, and site concrete construction efficiency is greatly improved through the material supply and delivery capacity of the three-dimensional automatic material supply and delivery system.

The invention discloses an arrangement method of a dual-bus and dual-row arranged type AIS (air insulated switchgear) power distribution device of a substation. The method is characterized by comprising the following steps of arranging a tube bus I and a tube bus II at the proper height positions, arranging each bus isolation switch and each line outgoing loop circuit breaker under the two groups of tube buses, and respectively arranging each electrical equipment on a ground equipment bracket; respectively arranging line outgoing loop circuit breakers from bays, such as a line-main transformer bay, a line-bus tie bay and a line-bus equipment bay, into a row in the direction parallel with the tube buses, and positioning at the line outgoing side of the tube bus I; arranging the main transformer loop circuit breakers of each line-main transformer bay into a row in the parallel direction, and positioning at the line incoming side of the tube bus I; enabling the bus isolation switches in the line-main transformer bay to adopt vertical telescopic type 0-degree isolation switches. The method has the advantage that by reasonably arranging the plane height of the tube buses, the dual-layer arrangement layout of the tube buses and the equipment is formed, so the land is effectively utilized, and the land occupation is saved.

The invention discloses a 220kV outdoor GIS double-dragonfly-type outlet wire arrangement structure. Although a GIS is adopted, the size of a total wire outlet side of a transformer substation is not reduced because of the width limitation of an outlet wire door frame of a conventional outdoor GIS. The technical scheme provided by the invention is characterized in that a wire outlet structure includes a vertical steel pipe pole and six wire outlet cross arms formed on the steel pipe pole. The wire outlet cross arms are all perpendicular to the steel pipe pole. The six wire outlet cross arms are distributed in three layers including an upper layer, a middle layer and a lower layer. Each of the layers is composed of two of the wire outlet cross arms disposed on two sides of the steel pipe pole respectively and the wire outlet cross arms in each layer are arranged in a staggered manner with the wire outlet cross arms on the same side and in the other layers. Double-loop vertical overhead wire outlet arrangement in the upper layer, the middle layer and the lower layer is formed through the cooperatively use of two GIS wire outlet intervals and the wire outlet structure. According to the invention, the wire outlet structure of the outdoor GIS power distribution device is simplified, the transverse size is reduced, floor space occupancy can be reduced distinctively and length of a 220kV GIS bus is reduced.

The invention provides a real-time solar tracking photovoltaic device, which characterized in that the device comprises a frame (1), sub components, a first support (4) and a driving part; the driving part drives the first support (4) to move; the frame (1), the driving part, the first support (4) and sub components are sequentially connected; the driving part comprises driving wheels (2) and a driven wheel (3); and the side parts of the driving wheels (2) are matched with the side part of the driven wheel (3). The device of the invention has the advantages of occupying no land resources, reducing the cost of land acquisition and indirectly increasing the benefits of photovoltaic power generation. The water body has a cooling effect on a photovoltaic module, can inhibit the temperature rise of the module surface, and thus obtains higher power generation capacity. Solar panels cover the water surface, evaporation on the water surface is greatly reduced, the efficiencies of hydroelectric power generation and irrigation are increased, meanwhile, the growth of algae is inhibited and the protection of water resources is facilitated.