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97results about How to "Reduce equipment investment costs" patented technology

Process of coarse coal slime back washing in pre-desliming dense medium cyclone sorting

The invention discloses a process of coarse coal slime back washing in pre-desliming dense medium cyclone sorting. Pre-desliming is carried out on raw coal fed to be washed to obtain plus sieve raw coal and minus sieve coal slime water, and the plus sieve raw coal enters a dense medium cyclone directly to be sorted; hydraulic cyclone grading is carried out on the minus sieve coal slime water to obtain coarse coal slime and fine coal slime; the coarse coal slime is dehydrated and then fed into the dense medium cyclone again to be sorted; the fine coal slime enters a coal slime water system of the next procedure to be recovered and floated. By the utilization of the advantage that the sorting minimum of the dense medium cyclone is smaller than 0.25 mm, the coarse coal slime obtained after desliming is fed into the dense medium cyclone again to be sorted, so that the flow path is simplified, a set of conventional sorting equipment is omitted, a high-level and high-benefit production system with the non-pressure feeding three-product dense medium cyclone as the main washing equipment is formed, and equipment investment is lowered. Particularly, if the raw coal fed to be washed contains batt, coal slime is seriously slimed, conventional coarse coal slime sorting equipment is low in sorting index, and the process is high in sorting index and can meet process requirements.
Owner:纪玉华

Numerical control drilling and cutting combination machine

The invention discloses a numerical control drilling and cutting combination machine. Tool change and length measurement of the drilling spindle structure on a drilling tool magazine mechanism are realized by means of controlling a main frame component, an auxiliary frame component, a driving slide carriage, a servo motor on a drilling lifting mechanism, a spindle motor on a drilling spindle structure and a tool impacting cylinder by a numerical control system, a steel plate is drilled under auxiliary effects of an iron plate compression device and a drilling aerial fog cooling system, and the steel plate is cut and discharged through a cutting torch by means of controlling the main frame component, the auxiliary frame component, a servo motor on the driving slide cartridge, a motor on a cutting torch lifting device and an inductive switch on an initial positioning device. The aid of the numerical control drilling and cutting combination machine has the advantages that two machining tool are combined, occupied area, production cost and investment cost of the equipment are greatly reduced, accordingly, requirements on capabilities of drilling, tapping and cutting steel plates on the same equipment can be met, and the economic benefit is remarkable.
Owner:WUXI HUALIAN SCI & TECH GROUP

Preparation method of nano drug-loading system of leaf surface affiliated pesticide

The invention discloses a preparation method of a nano drug-loading system of leaf surface affiliated pesticide. The method comprises the following steps: preparing a polylactic acid carrier, primaryemulsion and the nano drug-loading system, carrying out affiliated modification on the nano drug-loading system and the like. According to the nano drug-loading system of the leaf surface affiliated pesticide, disclosed by the invention, the average grain diameter range is 300nm to 800nm, the drug loading amount can reach 15 percent or more and the encapsulation rate reaches 75 percent or more; compared with an abamectin crude drug, traditional Chinese medicine components in the nano drug-loading system have remarkably improved the light stability, and the nano drug-loading system has a remarkable slow release effect. The preparation technology of the nano drug-loading system of the leaf surface affiliated pesticide is simple; the preparation cost and the equipment investment cost are low,pollutants are not generated and the quality of a product is stable and reliable; the leaf surface retention behavior of pesticide liquid drops can be remarkably improved. Therefore, the production method of the nano drug-loading system of the leaf surface affiliated pesticide has a very wide application prospect.
Owner:INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI

Supercritical hydrothermal combustion reactor for recovering salt from organic wastewater and application thereof

The invention relates to the field of high-salt-content organic wastewater treatment and resource utilization, in particular to a supercritical hydrothermal combustion reactor for recovering salt fromorganic wastewater and application thereof. The reactor comprises a top cover and a cylindrical cavity defined by a pressure bearing wall; wherein the cylindrical cavity comprises a hydrothermal combustion reaction chamber, a chilling chamber and a subcritical water chamber which are in fluid communication from top to bottom; an annular gap between an evaporation wall of the hydrothermal combustion reaction chamber and the pressure bearing wall is an evaporation wall area; a first gas-liquid mixed spraying device is mounted on the top cover; a purified water outlet is formed in the upper partof the side wall of the hydrothermal combustion reaction chamber, and a second gas-liquid mixed spraying device is mounted in the middle of the side wall; an annular space between the permeation wallof the chilling chamber and the pressure bearing wall is a cooling water chamber; and a high-salt water outlet is formed in the bottom of the subcritical water chamber. The reactor can effectively degrade organic matters in wastewater, and salt meeting industrial standards can be obtained after the obtained high-salinity water is subjected to evaporative crystallization.
Owner:成都九翼环保科技有限公司

Method for treating and reusing fracturing backflow fluid of shale gas

The invention discloses a method for treating and reusing fracturing backflow fluid of shale gas. The method comprises the following steps: (a) oxidizing Fe<2+> in original fracturing backflow fluid into Fe(OH)3, so as to obtain oxidized fracturing backflow fluid; (b) carrying out water quality analysis on the oxidized fracturing backflow fluid; (c) making comparison on the water quality of the oxidized fracturing backflow fluid and a reuse liquid preparation water quality requirement, and judging whether the concentrations of Ca<2+> and Mg<2+> in the oxidized fracturing backflow fluid of the shale gas are qualified; (d) if yes, sequentially carrying out coagulation, flocculation, sedimentation and filtration on the oxidized fracturing backflow fluid, and if no, sequentially carrying out coagulation-pH increase, ionic reaction, flocculation, sedimentation, filtration and pH value adjustment on the oxidized fracturing backflow fluid, so as to obtain treated fracturing backflow fluid; and (e) directly reusing the treated fracturing backflow fluid for liquid preparation or directly storing the treated fracturing backflow fluid. The method can adapt to the characteristics that the change of the water quality of the fracturing backflow fluid of the shale gas is large and reuse fracturing construction liquid preparation standards are different, and the instant continuous treatment can be realized.
Owner:PETROCHINA CO LTD

Method and device for producing alpha-type gypsum in large scale with low cost

The invention discloses method and device for producing alpha-type gypsum in a large scale with a low cost. The method comprises the following steps: spraying a proper amount of water into gypsum powder which comprises 10-15% of attached water and 15-20% of crystal water and has the grade of calcium sulphate dehydrate being 90-95% and preparing into dihydrate gypsum pellets; then, putting the dihydrate gypsum pellets in a rotary kiln body of a special rotary calcining kiln for alpha-type gypsum and sealing; heating the rotary kiln body by using a heating electric furnace body to evaporate the attached water and crystal water out of the dihydrate gypsum pellets in the rotary kiln body so as to form water vapor with pressure of 0.5-0.8MPa and temperature of 150-180 DEG C inside the sealed rotary kiln body; holding the temperature and pressure for 10-20 minutes under the condition so as to convert the dihydrate gypsum pellets in the rotary kiln body into alpha hemihydrate gypsum; then, switching on a decompression valve to relieve pressure and switching off the switch of the heating electric furnace body; and drying the residual water in alpha hemihydrate gypsum by using waste heat of the kiln body, and discharging and refining into 100-150 meshes powder to obtain a finished product alpha-type gypsum. The method provided by the invention is simple in process, convenient and efficient to operate, small in equipment investment and low in production cost, can be used for producing alpha-type gypsum in large scale, and is worthy widely popularizing.
Owner:HUANGSHI YANRAN IMPORT & EXPORT

Device and method for single snorkel vacuum degassing refining of molten steel by employing bottom injection

The invention belongs to the technical field of steel refining, and particularly relates to a device and a method for single snorkel vacuum degassing refining of molten steel by employing bottom injection. The device disclosed by the invention comprise an air supply system, a powder spray system, a single snorkel vacuum degassing refining furnace, wherein an airflow distributor on the air supply system is branched into three gas circuits which are connected with the powder spray system; a powder airflow delivery pipe in the powder spray system is connected with a bottom powder injection element; the bottom powder injection element is built at the bottom of a ladle furnace of the single snorkel vacuum degassing refining furnace; and an opening is formed in the lower end of a vacuum chamber of the single snorkel refining furnace and is inserted into a steel ladle molten pool. The method for single snorkel vacuum degassing refining of molten steel by employing bottom injection comprises the following steps: firstly, blowing a gas and stirring molten steel; blowing powder into the steel ladle through the bottom powder injection element under the transportation of a carrier gas flow; and after the blowing time is ended, entering the next work circle. The device and the method are easy to achieve, short in production cycle, and high in production capacity; equipment investment and operation costs on an overhead bunker and a wire feeding mechanism are reduced; the technological operation is simple; and energy conservation and emission reduction are facilitated.
Owner:NORTHEASTERN UNIV

Recombinant insulin and insulin analogue precursor purification method

The invention relates to the field of insulin production methods and discloses a recombinant insulin and insulin analogue precursor purification method. The invention solves the problems that conventional chromatographic packing cannot tolerate high-salinity sample loading, the amount of used organic reagent is great, the cost is high and the product purity is not high in the purification process of recombinant expressed insulin precursors and insulin analogue precursors. The invention adopts the technical scheme that the method comprises the steps of performing pH regulation and centrifugation to centrifuged fermentation supernatant, then directly loading a sample and performing adsorption, separation, purification and elution through a chromatographic column prepared by using any packing of Capto S, Capto MMC, Uni PMM S and Uni MSP to finally obtain high-purity recombinant insulin and insulin analogue precursors. Compared with the existing purification method, the recombinant insulin and insulin analogue precursor purification method has the advantages that the operation is simple, the yield is high, the spent time is short, the environmental influence is small, and the product production cost of the existing insulin and insulin analogues can be greatly reduced.
Owner:JINAN KANGHE MEDICAL TECH

Forming method and forming equipment for ternary composite reconstituted tobacco sheets

PendingCN111134352AReduces the effects of odor inhalationImprove physical strengthTobacco preparationTobacco treatmentFiberPowder mixture
The invention relates to a forming method and forming equipment for ternary composite reconstituted tobacco sheets. The equipment comprises a primary coating composite device, a primary stripping conveying device, a secondary coating composite device and a secondary stripping conveying device. The method comprises the following steps of: coating a tobacco mixture on a first conveying surface in acoating and compounding manner to form a strip-shaped slurry sheet, and coating a fiber net-shaped base material on the surface of the strip-shaped slurry sheet under the condition of smaller tensionto form a strip-shaped binary compound reconstituted tobacco sheet, coating the secondary conveying surface with the tobacco mixture, and coating the surface of the strip-shaped slurry sheet with thestrip-shaped binary composite reconstituted tobacco sheet under the condition of small tension to form the ternary composite reconstituted tobacco sheet. The middle layer of the produced reconstitutedtobacco sheet is a prefabricated strip-shaped fiber net base material, the upper layer and the lower layer are tobacco powder mixtures, the coating rate can be increased, the cigarette smell can be improved, the consistency of finished products can be improved, the tensile strength can be improved, the thickness can be reduced, and the processability can be enhanced.
Owner:YUNNAN KUNCHUAN TOBACCO EQUIP CO LTD

Rural town household refuse transfer intelligent regulation and control system

InactiveCN106875040AImprove transport efficiencyReal-time control of job contentForecastingControl systemGeolocation
The invention provides a rural town household refuse transfer intelligent regulation and control system, including a data collection module, a server, an optimized scheduling module and a control module. The data collection module obtains the operation information of a collection station, the operation information of a transfer station, the operation information and the real-time location information of a transfer vehicle, the geographical location map and the traffic information of an area, the geographical coordinates of the collection station, the transfer station and a disposal site, and the operation information of the disposal site. The server receives the information obtained by the data collection module and transmits the information to the optimized scheduling module. The optimized scheduling module carries out optimized calculation according to the information transmitted by the server, obtains the optimal transfer strategy of the transfer vehicle, and sends the optimal transfer strategy to the control module. The control module generates a corresponding operation instruction hereby and sends the operation instruction to an operation terminal. The system can optimize the refuse transfer and equipment scheduling, take real-time measures according to the operation states of the collection station, the transfer station and the disposal site, reduce the suspension and ineffective operation, and plan the optimal transfer strategy, thereby reducing the burden of labor and the cost and improving the refuse transfer efficiency.
Owner:TSINGHUA UNIV

Intelligent granary bulk grain granary entry and grain surface flattening integrated device

The invention discloses an intelligent granary bulk grain granary entry and grain surface flattening integrated device. The device comprises a grain distribution trolley, a first belt conveyer, a machine frame, an intelligent traveling device, a grain surface flattening device and second rails. The first belt conveyer is installed on the machine frame. First rails are installed on the two sides of the first belt conveyer. The grain distribution trolley is installed on the first rails. The second rails are installed on the two sides of a granary, and is located below the first belt conveyer. The intelligent traveling device is installed on the second rails and comprises a traveling grain unloading trolley, a traveling machine frame and a second belt conveyer. The traveling machine frame is installed on the second rails. The second belt conveyer is installed on the traveling machine frame. Third rails are installed on the two sides of the second belt conveyer. The traveling grain unloading trolley is installed on the third rails. The grain surface flattening device is installed at the bottom of the traveling machine frame through a lifting device. With the intelligent granary bulk grain granary entry and grain surface flattening integrated device, grain can be evenly distributed at the bottom of the granary without being piled up, the labor intensity of workers can be effectively reduced, and the granary entry efficiency of grain is improved.
Owner:HENAN UNIVERSITY OF TECHNOLOGY

Industrial waste-water treating system for paper making factory

The invention discloses an industrial waste-water treating system for a paper making factory. The industrial waste-water treating system comprises a pretreatment water collecting tank, a grating, a grit tank, a physical filter tank, an ice grating, an electromagnetic adsorption tank, an air floating tank, an acidification tank, a contact oxidation tank, a secondary sedimentation tank, a reflux treating tank, an artificial wetland treating system, a recirculation storage tank, a sludge storage tank, and a belt pressure filter, wherein the temperature in ice grating equipment is minus 2-10 DEG C. The waste-water treating system adopts environment-friendly ice grating equipment with low energy consumption, and the ice grating equipment is applied for the waste-water treating technology in paper making for the first time; the waste-water treating system has an obvious removing effect on organic matters and small-sized solid suspended matters, which are unique and difficult to remove, in paper-making waste water, and chemical reagents are not added. In the paper-making waste water treated by the waste-water treating system, the removal rate of chemical oxygen demands is 98.1%; the removal rate of total nitrogen is 97.2%; the removal rate of five-day biochemical oxygen demands is 95.1%; the removal rate of suspended matters is 96.1%; the removal rate of chroma is 90.1%; the removal rate of turbidity is 98.8%.
Owner:江苏富星纸业有限公司

Vertical vibration conveying and drying integrated device

The invention relates to the technical field of material transportation, in particular to a vertical vibration conveying and drying integrated device. The device comprises a feeding structure, a discharging structure, a material conveying structure and a heater. The material conveying structure comprises two or more vertical conveying pipelines and a driver, and every two adjacent vertical conveying pipelines are connected in series in the material conveying direction. The vertical conveying pipelines are driven by the driver to do horizontal plane circular motion and vertical plane up-and-down vertical motion. A feeding hole at the lower part of the material conveying structure is communicated with the feeding structure, and a discharging hole at the upper part of the material conveying structure is communicated with the discharging structure. The heater is used for heating the materials in the vertical conveying pipelines. By means of the structure of the vertical conveying pipelinesand the heater, after-production drying can be achieved while grains are vibrated and vertically conveyed, the labor intensity of workers can be effectively reduced, the grain conveying and drying efficiency is improved, the investment cost of a grain conveying and drying system is reduced, a traditional grain conveying and drying mode is changed, and rapid grain conveying is guaranteed.
Owner:HENAN UNIVERSITY OF TECHNOLOGY

Integrated fluidized catalytic oxidation tower and method for deeply treating wastewater by using same

The invention discloses an integrated fluidized catalytic oxidation tower and a method for deeply treating wastewater by using the same. A balance adjusting unit of the catalytic oxidation tower is connected with a water distribution pipe at the bottom of a catalytic oxidation unit through a pipeline; the outer side of the upper part of the catalytic oxidation unit is provided with a circulating water tank, the outer side of the circulating water tank is provided with an intermediate water tank, and the top of the circulating water tank is connected with the intermediate water tank through an overflow port; the intermediate water tank is connected with a water distribution pipe of a coagulation sedimentation unit through a pipeline, and a water collecting basin is connected with the balance adjusting unit through a pipeline; the balance adjusting unit is connected with the water collecting basin through a first overflow pipe, and the intermediate water tank is connected with the water collecting basin through a second overflow pipe; a water outlet of a water outlet tank is connected with a clean water basin through a water outlet pipe. By using the integrated fluidized catalytic oxidation tower, the mass transfer efficiency and the chemical reaction speed are effectively increased, the oxidative degradation effect for organic pollutants in wastewater is improved, the dosage of a Fenton reagent can be reduced, and the yield of chemical sludge in the later coagulation process can be reduced.
Owner:SOUTH CHINA UNIV OF TECH

Ferrous metallurgy pellet iron-containing raw material preprocessing and dosing system

ActiveCN103966430AReduce the number of mine binsSmall footprintFerrous metallurgyPre treatment
The invention discloses a ferrous metallurgy pellet iron-containing raw material preprocessing and dosing system which is characterized by sequentially comprising an incoming material belt conveyer for conveying iron ore concentrate to a high-pressure roller grinding chamber, a roller type sieving machine arranged below the incoming material belt conveyer, an iron ore concentrate buffer cabin arranged below the roller type sieving machine, a movable quantitative feeder arranged below the iron ore concentrate buffer cabin, a high-pressure roller grinder arranged below the head of the movable quantitative feeder, a bypass chute formed in one side of the high-pressure roller grinder, a dosing belt conveyer for conveying materials discharged from the high-pressure roller grinder or the bypass chute to a dosing chamber, and a bentonite and dust storage and feeding system which is arranged in the dosing chamber and is used for conveying bentonite and dust to the dosing belt conveyer and conveying the bentonite and the dust to a next process together with the iron ore concentrate on the dosing belt conveyer. According to the system, the occupied area of the dosing chamber, the basic construction investment, the material transfer and loss and the operating energy consumption are reduced.
Owner:中冶北方(大连)工程技术有限公司
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