67results about How to "Huge cost savings" patented technology

The invention provides an iron-based low-temperature SCR denitration catalyst and a preparation method thereof. Iron and cerium compounds are taken as active components, or iron, manganese and cerium compounds are taken as active components, titanium oxide is taken as a carrier, the molar ratio of iron, manganese and cerium is 1:(0.5-4):(0.5-1.5), and the molar ratio of iron and titanium oxide is 0.15-0.25. The preparation method comprises the steps of dissolving iron nitrate, manganese nitrate and cerium nitrate in deionized water, adding the titanium oxide, stirring intensely so as to mix the above compounds thoroughly, then performing ultrasonic mixing, putting the mixture into an oven for drying, calcining in an air atmosphere, and then grinding the mixture into powder. The iron-based low-temperature SCR denitration catalyst provided by the invention has an obvious advantage in cost, and meanwhile, the iron-based low-temperature SCR denitration catalyst has higher denitration efficiency under a medium and low temperature.

The invention discloses an RFID (Radio Frequency Identification Device)-based urban intelligent curb parking system. The RFID-based urban intelligent curb parking system comprises an intelligent curb parking system cloud service background, an automobile and a parking space, wherein the intelligent curb parking system cloud service background is connected with a mobile phone inside the automobile and a parking terminal through a 3G wireless signal or a 4G wireless signal respectively; the parking terminal is connected with an RFID card on the parking space through a radio frequency wireless signal and comprises a main control CPU (Central Processing Unit) small system module, a GPS (Global Positioning System) module, a vehicle-mounted ETC (Electronic Toll Collection) system module, a wireless communication module, an RFID radio frequency transmitting and receiving module and a power module; the GPS module, the vehicle-mounted ETC system module, the wireless communication module, the RFID radio frequency transmitting and receiving module and the power module are connected with the main control CPU small system module through signal lines respectively. The RFID-based urban intelligent curb parking system is simple in structure, more power-saving, low in cost and more convenient to use.

The invention discloses a synthetic method of 4-(2,2-difluoro-1,3-benzodioxole-4-yl)pyrrole-3-nitrile. The method comprises the following steps of: preparing an intermediate 2,2-difluorobenz-1,3-dioxole through reacting catechol with dibromodifluoromethane, and preparing an intermediate 2-cyano-3-(2,2-difluorobenz-1,3-dioxole-4-yl)-2-acrylate. The fludioxonil prepared by the synthetic method provided by the invention has the purity of more than 99.0% and the total yield of more than 45.0%; the synthetic method has the advantages of cheap and easily available raw materials, simple process, high product yield in each step, good purity, low production cost, applicability to batch industrial production and the like.

The invention provides a natural fiber product modified by adopting a supercritical carbon dioxide technology. The modified natural fiber product is a cotton, hemp, silk or wool natural fiber or a yarn, fabric or clothing prepared from the natural fiber. The invention further provides a method for modifying the natural fiber product by adopting the supercritical carbon dioxide technology. The method comprises the step of adding the natural fiber and a vegetable dye and a natural plant extract; the natural fiber is modified by innovatively adopting the supercritical carbon dioxide technology; water or other reagent is not utilized as a solvent, no wastewater or waste is generated or discharged, and the method has the characteristics of ecological environment protection and wide adaptability of fabric varieties and belongs to an environment-friendly functional modification technology. The natural fiber which is functionally modified by adopting the supercritical carbon dioxide technology is uniform in color and luster, extremely good in reproducibility and free of an injury to the natural fiber.

The invention relates to a construction method for a hanging part of an anti-collision guardrail on an expressway. The construction method comprises the steps that (1) a total station is pre-used to accurately set out the inner side line of the hanging part of the anti-collision guardrail; (2) a ground anchor steel bar is buried on a top plate of a prefabricated box girder, and is fastened with a bottom reinforcing steel tube and an inclined strut steel tube by using a fastener connecting manner, so as to stabilize an inner side template; (3) an outer side template is taken in place by using auxiliary hoisting equipment; (4) a mortar band, which is 2.4cm in height and 5cm in width, is built on the inner side of the inner side template before the inner side template is mounted; and (5), after the templates of the anti-collision guardrail are mounted, a mixer truck is used to be matched with a gantry crane to hoist concrete into the templates, and an immersion vibrator is used to vibrate the concrete, so as to guarantee that the concrete is solid, the color and the lustre are uniform after the templates are detached, and the linearity is attractive. The templates of the anti-collision guardrail disclosed by the invention are simple in structures, materials are ordinary, the processing is convenient, and the cost is lower.

The invention relates to a method for reinforcing soft broken coal rock by directional grouting, comprising the following steps of: respectively dividing an upper-layer fixed section, an intermediate-layer fixed section and a lower-layer fixed section at the upper part of a mining surface from top to bottom; respectively upwards drilling on each layer of fixed sections along the direction inclined to a horizontal plane; and respectively inserting constant pressure grouting pipes with a plurality of holes into each drill hole and injecting reinforcing slurry into each constant pressure grouting pipe, wherein the cost performance of reinforcing slurry A of the upper-layer reinforcing section and the lower-layer reinforcing section is lower than that of reinforcing slurry B on the intermediate-layer fixed section. According to the method disclosed by the invention, a pre-mined coal layer is divided into layers and sections; the phenomenon of no top bursting in the mining process is ensured and the consumption of expensive reinforcing slurry B is saved as much as possible, thereby the mining cost is saved. The invention has the advantages of reasonable design, economy and remarkable effect for saving cost and is easy to implement through practical application.

The invention discloses a cleaning device and method for a hollow fiber gas separation membrane module. The cleaning device is formed by the membrane module, a positive and negative bidirectional cleaning system, a ladder temperature purge system and an intermittent flow disturbance system. The positive and negative bidirectional cleaning system consists of a cleaning fluid tank, a cleaning pump, a pressure gauge, a positive and negative bidirectional cleaning pipeline and a blowoff valve. The ladder temperature purge system consists of an air compressor, a flowmeter, a control system, a heater, a purge pipeline and a blowoff valve. The intermittent flow disturbance system consists of an air compressor, a flowmeter, a control system, a disturbance gas flow generator, a check valve and a gas escape valve. The device disclosed by the invention can clean membrane modules in different pollution conditions; by a comprehensive cleaning effect of the intermittent flow disturbance system, the positive and negative bidirectional cleaning system and the ladder temperature purge system, performance of the membrane module is entirely repaired. The cleaning device and method are high in cleaning efficiency for the membrane module, good in effect, low in cost, simple in process and convenient to operate, and save enormous cost of replacing the membrane module.

The invention discloses a test device capable of repeatedly simulating a weightless environment. The test device comprises a main body bracket, guide rails, a falling device, a winch and an electromagnetic attraction disc device, wherein the guide rails are arranged on a side face of the main body bracket, and the falling device is mounted on the guide rails through a plurality of sliding blocks; the electromagnetic attraction disc device is connected with the falling device through electromagnetic attraction force, and the falling device is connected with a test body; the winch is arranged at one side of the main body bracket, an output shaft of the winch is connected with a steel wire rope, and the steel wire rope is connected with the electromagnetic attraction disc device. The steel wire rope is driven to ascend or descend the falling device through the winch, and buffers which are used for buffering the falling device and the test body are arranged at the bottom ends of the guide rails, so that the test device can effectively realize weightless environment simulation, the use effect is better, and the repeatability and responsiveness of the test device are higher.

A heavy fog identification system based on machine learning and routine meteorological observation comprises a user interaction module in a PC, a ground meteorological observation information processing module, a meteorological satellite remote sensing data processing module, a heavy fog identification training module based on machine learning, a heavy fog estimation module based on machine learning, a visibility rasterization module based on a RBF network, a heavy fog estimation checking module and an interface service module. The application method provided by the invention comprises 9 stepsof: performing real-time monitoring for the heavy fog of lattice points in a range of 1km and to provide data support for road closure control based on the local area agglomerate fog forecast by related departments. The heavy fog identification system based on machine learning and routine meteorological observation and the application method thereof can reduce a big amount of cost for arrangementof the visibility meters to effectively monitor the heavy fog (comprising agglomerate fog) to reduce the loss caused by diseases of the heavy fog (comprising agglomerate fog) so as to greatly ensurethe traffic road safety. Therefore, the heavy fog identification system based on machine learning and routine meteorological observation and the application method thereof have good application prospect.

The invention provides a method for producing decalin through crude naphthalene hydrodesulfurization, and belongs to the technical field of environmental protection and energy. A high-purity decalin product is obtained through the following processes in order: dissolving through a dissolving tower, the first-stage hydrogenation, washing, fine desulfurization, the secondary hydrogenation and rectification. The fine desulfurization process is added between the washing and the secondary hydrogenation to remove the sulfur in the first-stage hydrogenation product, so that the content of the sulfur is reduced to 1ppm and lower, the active inhibition and poison to the secondary hydrogenation catalyst are relieved, the service life of the catalyst is prolonged, and the production cost is lowered. A nickel-based catalyst is used in the secondary hydrogenation so as to further lower the production cost. The crude naphthalene is used as the raw material, the raw material purity requirement is low, and the application scope is wide; by use of the two-stage type hydrogenation, the operation pressure is low, the decalin selectivity is greater than 99%, the total yield of the decalin is greater than 95%, and the product purity is greater than 99%.

The invention discloses a synthetic method of 2-(4,6-dimethylpyrimidine-2-ylamidoformamidosulfonyl)methyl benzoate. The synthetic method comprises the following steps of: reacting saccharin with methanol to prepare an intermediate methyl 2-sulfamoylbenzoate, and then preparing an intermediate methyl 2-sulfamoylbenzoate methyl formate from dimethyl carbonate and sodium methoxide with methanol and the like as a solvent. The 2-(4,6-dimethylpyrimidine-2-ylamidoformamidosulfonyl)methyl benzoate prepared by the synthetic method provided by the invention has the purity of more than 95.0% and the total yield of more than 65.0%. The preparation method provided by the invention has the advantages of cheap and easy-to-get raw materials, simple process, few three wastes, avoidance of virulent suffocating gas, applicability to batch industrial production and the like.

The invention discloses an aluminum alloy section with the low Vickers hardness and a preparation method thereof. The aluminum alloy section is prepared from the components in percentage by weight: 0.30 to 0.36 percent of Si, 0 to 0.12 percent of Fe, 0 to 0.01 percent of Cu, 0 to 0.02 percent of Mn, 0.47 to 0.53 percent of Mg, 0 to 0.01 percent of Cr, 0 to 0.01 percent of Zn, 0 to 0.07 percent ofTi, 0 to 0.02 percent of impurities, and the balance Al, wherein the sum of percentage of the components is 100 percent. The preparation method comprises the steps of adopting an aluminum rod preparedfrom the components, treating through an extrusion process and an aging process, and obtaining the aluminum alloy section with the Vickers hardness being HV42 to HV48. According to the aluminum alloysection with the low Vickers hardness and the preparation method thereof provided by the invention, through reasonably allocating the components of the aluminum alloy section and concretely definingthe extrusion process and the aging process, the aluminum alloy section with the Vickers hardness being HV42 to HV48 can be obtained, so that the energy consumption is reduced, and the cost is remarkably saved.

The invention discloses a neural network prediction control method based on an optimization control platform, and the method comprises the steps: A, taking samples of a controlled object in a certaininput and output range, and building an initial learning set of a neural network; B, selecting initial parameters of the neural network according to the control object, wherein the initial parameterscomprise the layer number and the node number; C, initializing a neural network, mainly initializing a network weight and a threshold value; D, training an LSTM neural network to obtain a neural network prediction model; E, calculating a reference track expected to be input; F, outputting by the neural network prediction model, and generating prediction output through feedback correction; G, calculating a prediction error; and H, solving a quadratic performance function to obtain an optimal control solution, and skipping to the step E so as to continuously adjust the control signal. Defects inthe prior art can be overcome, the method can be directly applied and implemented in a thermal power station, and the problems faced by an existing advanced algorithm thermal control platform are perfectly solved.

The invention discloses a method and a system for self-testing by using to-be-tested audio equipment. The method comprises the following steps: configuring an automatic test program in the to-be-tested audio equipment in advance; switching the to-be-tested audio equipment to a test mode to operate an automatic test program to realize the following test steps: playing test audio through a playing device of the to-be-tested audio equipment; meanwhile, performing recording through a recording device of the to-be-tested audio equipment to obtain recorded audio; and analyzing the recorded audio bythe to-be-tested audio equipment according to the automatic test program so as to test the to-be-tested audio equipment. According to the embodiment of the invention, the operation performance and hardware configuration of the to-be-tested equipment are fully utilized, the to-be-tested equipment plays the test sound source, records the audio, executes the test software to realize the analysis test, and greatly reduces the dependence of the test on the external device. Only software is needed to serve as a testing jig, cost is obviously saved, and large-batch synchronous testing can be achieved.

The invention relates to a movable pipe production system engineering vehicle which comprises a vehicle body and pipe production facilities. The vehicle body is a combined type vehicle body, the engineering vehicle body comprises a bottom plate, four side plates are installed on the periphery of the bottom plate in a hinged mode through hinged shafts, vehicle body moving towing rings are installed on the front and the back of the bottom plate respectively, the pipe production facilities are installed on the unfolded vehicle body and uniformly arranged inside the assembled vehicle body during vehicle transport, when the vehicle reaches the preset position, the vehicle body is unfolded, and the pipe production facilities are sequentially fixed on the unfolded bottom plate and side plates according to the practical production requirements. According to the movable pipe production system engineering vehicle, the transport cost and space expenses can be reduced, and the personal expenses and the time cost are reduced; the enterprise developing region is expanded, and the options of buyers are expanded; the enormous cost for building a plant for meeting production needs is reduced, and the production cycle is shortened.

The invention discloses a synthetic method of 2-(4, 6-dimethyl pyrimidine-2-base amino formyl amino sulfonyl) methyl benzoate. The method is characterized in that gluside and dimethyl carbonate are adopted for preparing an intermediate of N-methyl formate-o-sulfonylbenzoylimine, and then methanol is adopted for preparing an intermediate of o-methoxy carboxide benzenesulfonamide methyl formate. The purity of 2-(4,6-dimethyl pyrimidine-2-base amino formyl amino sulfonyl) methyl benzoate prepared by the synthetic method provided by the invention reaches more than 95.0%, and the total yield reaches 55.0%. The method is mainly applied to preparation of 2-(4, 6-dimethyl pyrimidine-2-base amino formyl amino sulfonyl) methyl benzoate and has the advantages that raw materials are cheap and easy to obtain, the technology is simple, the three wastes are few, virulent suffocating gas is prevented from being used, and the method is suitable for batch industrialized production.

The invention discloses an open-pit mining method for triangular ore quantity between layered flat deposit strip areas. Firstly, a deposit is divided into a plurality of parallel mining strip areas, cross sections of two adjacent strip areas are overlapped, side slopes of the overlapped areas intersect on a boundary between a coating layer and a coal seam, and a triangular area is formed between the two adjacent strip areas under the point of intersection; then the mining strip areas are mined one by one, when any strip area is mined, the triangular area with a next strip area is mined simultaneously, and an exposed face after mining to the boundary is covered in a matched stripping and internal dumping mode; and mining is performed in cycles until all the mining strip areas are mined. According to the method, repeated stripping quantity between the strip areas and the average stripping ratio of a mine are reduced effectively, triangular ore quantity pressed by two adjacent strip areas are recovered in advance, so that not only is the mining cost reduced, but also the overall economic benefit of the mine is improved.

The invention discloses a tea leaf drying machine, and relates to the technical field of tea leaves. The tea leaf drying machine comprises a noise reduction device, a driving device, a drying device and a core device, the noise reduction device comprises a first base, vertical plates and vertical grooves, the vertical plates are fixedly connected to the front side and the rear side of the upper surface of the first base, the vertical grooves are formed in the front surfaces of the vertical plates, a vibration block is arranged in each vertical groove, the vibration block is matched with each vertical groove, a hole is formed in the front surface of the vibration block, vibration springs are fixedly connected to the upper surface and the lower surface of the vibration block, one ends, awayfrom the vibration block, of the vibration springs are fixedly connected to the inner walls of the vertical grooves, a heater is fixedly connected to the upper surface of the first base, the heater islocated between the two vertical plates, and the upper end of the heater is in an arc shape. By means of the tea leaf drying machine, dried crispy tea leaves are not prone to damage, and the appearance of the tea leaves is greatly improved.