60results about How to "Improve economic efficiency" patented technology

The invention belongs to the field of fine chemicals and particularly relates to antiviral antibacterial incense and a preparation method thereof. Decoction is prepared first via water extraction; active medicinal effective ingredients are stored and protected via the porous inorganic material bentonite having good water-absorbing capacity, so that chances for the effective ingredients to be oxidized and inactive during high-temperature combustion are greatly slimmed; the antiviral antibacterial incense is prepared through the compatibility with wood flour, a binder and other auxiliary materials. The antiviral antibacterial incense can be ignited to produce smoke that has slight, sweet, slightly spicy, and fresh peppermint smell, which soothes and relax a smeller; the antiviral antibacterial incense can also kill harmful viruses and bacteria in the air and can inhibit common viruses and bacteria to 90% and above, such as Escherichia coli and Staphylococcus aureus. The smoke contains various effective Chinese herbal ingredients that can resist viruses and bacteria; the smell passes through olfactory cells of the orifices and enter the body via the skin so as to assist in clearing harmful viruses and bacteria in the body, thereby benefiting people's physical health.

The invention discloses a method for producing silicic acid cement clinker by using high-sulfur coal as a chromium removing agent. The method comprises the following steps: 1, selection of raw materials: selecting high-sulfur coal with a total sulfur content of 2.5-5.0%, and independently stacking the high-sulfur coal; 2, fuel mixing: matching high-sulfur coal and low-sulfur coal through a proportioning bin, wherein the total sulfur content of the matched coal to be put into a kiln is controlled to be 1.1-1.8%; 3, grinding and feeding into the kiln: grinding the matched raw coal into powder, metering the powder by using a rotor scale, and respectively conveying the coal powder to a kiln head and a decomposing furnace by a Roots blower for calcining; and 4, calcining and chromium removal: subjecting the kiln-entering coal powder matched with the high-sulfur coal to combusting in a rotary kiln and a decomposing furnace, combusting and oxidizing total sulfur in the coal to generate SO2 soas to form a reducing atmosphere, and accelerating chromium ions and clinker minerals to form a solid solution to inhibit the formation of hexavalent chromium by taking coal sulfur as a solvent mineral. The method for producing the silicic acid cement clinker by using the high-sulfur coal as the chromium removal agent is remarkable in chromium removal effect, remarkable in economic benefit and high in quality stability after chromium removal.

The invention relates to a production method for making a high-grade cardboard using brush wood sheet hot grinding pulp to replace OCC (obsolescence corrugated cardboard) pulp. The production method comprises the following steps of pulp preparation: using waste box cardboards to prepare OCC pulp; using ONP (old news paper) to prepare ONP pulp; using brush wood sheets to prepare wood chip pulp, mixing the wood chip pulp, saccharomyces chevalieri and a binder, and culturing; pulp blending: using the ONP pulp as a grey board topcoat layer; mixing the OCC pulp and the wood chip pulp to form a grey board liner layer; mixing the OCC pulp and the wood chip pulp to form a grey board core layer; mixing the OCC pulp and the wood chip pulp to form a grey board bottom layer; paper making: using the approaching pulp to make the paper. Compared with the prior art, the production method has the advantages that the wood chip pulp is cultured by microorganisms, so that the thickness, compactness and stiffness of grey board are improved; the raw material structure of the grey board is optimized, the usage amount of OCC waste paper is reduced, the problem of raw material cost of the grey board is reduced, and the economic benefit is obviously improved.

The invention relates to an energy storage system, in particular to a solar thermal dynamic energy storage system, belonging to the technical field of energy storage. The solar thermal dynamic energy storage system comprises a solar collecting system, a compressed energy storage system and a thermal power expansion system, wherein a photovoltaic power generation device can generate electricity to drive a high-pressure compressor to work, external electric energy can drive the high-pressure compressor and a low-pressure compressor to work through a power grid of a power station, and an expansion machine can swell to generate electricity to release energy. According to the energy storage system, the valley electric energy of the power grid of the power station and residual electric quantity generated through daytime solar photovoltaic power generation can be stored, the solar photovoltaic power generation and sunshine thermal power stored heat power generation can be fully utilized, thereby improving the utilization efficiency of energy, lowering the power generation cost and increasing the economic benefit.

The invention discloses a low-ammonia-consumption caprolactam production process. Firstly, a saturated ammonium sulfate aqueous solution which is a byproduct in a caprolactam production process is mixed with a lime milk solution, and a reaction is carried out to generate an ammonia-enriched gas phase and calcium sulfate precipitate-enriched water slurry; steam stripping deamination treatment is carried out on the calcium sulfate precipitate-enriched water slurry generated by the reaction, then ammonia-containing steam obtained by steam stripping is sent to an ammonia recovery step, and the deammoniated slurry is sent to a gypsum recovery step; high-concentration ammonia water and ammonia gas are recovered from the ammonia-containing steam obtained by the steam stripping deamination and theammonia-containing gas phase generated by the reaction through a rectification and condensation method, and the recovered ammonia is sent back to the caprolactam production process to be used as neutralization ammonia; and finally a high-quality gypsum product is recovered from the calcium sulfate precipitate-containing slurry subjected to the steam stripping deamination. Through the adoption ofthe technical scheme, an outlet problem of the ammonium sulfate byproduct can be solved, meanwhile, ammonia consumption in the caprolactam production process can be greatly reduced, and economic benefits of a caprolactam device can be improved.

The invention discloses a method for treating artificial wetland breeding wastewater by integration of straw, biochar and organism. According to the method, breeding wastewater passes an anaerobic fermentation tank, three substrate tanks and four wetland tanks in sequence; a substrate channel is arranged between the anaerobic fermentation tank and the first substrate tank, between two adjacent substrate tanks, as well as between the third substrate tank and the first wetland tank; straw is laid in the substrate channels and the substrate tanks; wild plants are added onto the straw; a water blocking drop water dam is arranged at the water outlet of each substrate tank; the wetland tanks are surrounded by ridges; two adjacent wetland tanks are separated through one ridge; overflow openings of which the cross sections are in the shape of an inverted trapezoid are formed in the upper end surfaces of two ridges of each wetland tank; myriophyllum verticillatum is added into each wetland tank; a biochar layer is arranged in front of the overflow opening, near discharged water, of the last wetland tank. According to the method for treating artificial wetland breeding wastewater by integration of straw, biochar and organism, the water quality of the end discharged water is greatly superior to the water pollutant discharge standard of the national breeding industry.

The invention relates to the technical field of loudspeaker processing, in particular to a Bluetooth earphone loudspeaker assembling module, which comprises a module formed by contacting a lower shelland an upper shell, the module is arranged on a conveyor belt, a pressing plate is arranged above the module, and transmission shafts of the conveyor belt are symmetrically and fixedly connected withstand columns through bearings. A transmission shaft of the conveying belt is connected with a gap movement assembly connected with the stand column, workbenches are symmetrically arranged on the twosides of the conveying belt, clamping assemblies connected with the workbenches are symmetrically arranged on the two sides of the module, and the pressing plate is connected with telescopic pieces connected with the workbenches. The device solves the problems that an existing Bluetooth earphone loudspeaker assembly module is low in assembly efficiency, automatic operation cannot be achieved, andtherefore production efficiency is reduced, the structural design is reasonable, automatic production operation is achieved, the assembly efficiency and the production efficiency of the Bluetooth earphone loudspeaker module are improved, then production cost is reduced. The economic benefit is improved, and the practicability is very good.

The invention discloses an in-air repairing method for the bearing position of an output shaft shell of a wind power gearbox. The repairing method comprises the following steps that 1) firstly, a bearing with the bearing force equivalent to the bearing force of an output shaft of an original gearbox is selected for replacement; 2) the wear area is thoroughly cleaned by using a cleaning agent, thena sleeve is embedded, the sleeve and the gearbox shell are fixed through a pin, and glue is coated between the inner ring of the sleeve and the outer ring of the bearing to be in interference fit; 3)if the size of the inner ring of the bearing is changed, the size of the matched end face of a baffle needs to be changed; 4) in order to ensure that the transverse clearance between bearing rollersof the new bearing and the inner ring of the bearing is 2 mm and the width size of the bearing is changed, a spacer ring is additionally arranged between a front bearing position retaining shoulder ofthe output shaft and the inner ring of the bearing; and 5) if the inner diameter size of the new type of bearing which is used for replacement is changed, the shaft diameter of the output shaft needsto be reworked. According to the in-air repairing method for the bearing position of the output shaft shell of the wind power gearbox, the effect that for the remanufacturing technology is applied tothe repair of the bearing position of the output shaft shell of the wind power gearbox is achieved, the remanufacturing quality is not lower than or even higher than that of an original product, andthe in-air maintenance period can be shortened. According to the technical scheme, materials, energy and cost are saved, and the economic benefit is quite high.

The invention provides an intelligent sheep flock feeding system. The intelligent sheep flock feeding system comprises a central control system, an information acquisition system, an intelligent access control system and a self-adaptive feeding system which are arranged in a sheep yard, wherein the interior of the sheep yard is composed of a sheep house area and other areas; uniformly-distributedsheep houses and an out-house activity area located at an outer end position are arranged in the sheep house area; and the central control system comprises a central control chamber and an upper computer. The intelligent sheep flock feeding system provided by the invention is simple in structure, has the functions of intelligent sheep flock access classified housing, self-adaptive feeding, livestock health file establishment and livestock loss prevention, is applicable to the breeding industry and places like natural reserve areas and zoos, is low in cost and convenient to operate, greatly saves human resources, improves production efficiency, and increases economic benefits at the same time.

The invention discloses an automatic production line of a solar sectional material. The automatic production line mainly comprises a charging bracket part, a charging conveying part, an adhesive tape pasting part, a blanking part, a bending part and a control cabinet body, wherein the charging bracket part and the charging conveying part are connected in parallel; the outlet of the charging bracket part is connected with the inlet of the adhesive tape pasting part; the outlet of the adhesive tape pasting part is connected with the inlet of the blanking part; the outlet of the blanking part isconnected with the inlet of the bending part; and the control cabinet body is connected with the whole production line by virtue of lines. By adopting the automatic production line, the problems of uneven products, high production cost, low production efficiency and low profit rate caused by excessive manual procedures in the current industry are solved. By adopting the mechanical automatic production line mode, the problem of staff redundancy is fundamentally solved, and machines with precise control are utilized to ensure the unification of the specification of produced products.

The invention provides an anti-sludge crayfish feeding method. The crayfish is fresh water economic shrimp and is soft in meat quality and easy to digest. Also, the crayfish can protect cardiovascularsystem, prevents arteriosclerosis, expands coronary arteries, and effectively prevent hypertension and myocardial infarction. In the breeding of crayfish, soil of the crayfish pond preferably uses loam and clay, and after long-time crayfish breeding is carried out, excrement, biological corpses, silt and the like are easy to precipitate at the bottom of the pool to form sludge, the oxygen contentof the lower water body is influenced, and the breeding of the crayfish is not facilitated. In order to solve the above problems, the invention provides an anti-sludge crayfish feeding method, the formation of sludge at the bottom of the pond can be reduced, the oxygen content of the lower water body is increased, the breeding environment is guaranteed, and the economic benefit is improved.

The invention relates to an integrated chimney and cooling tower structure system of a diagonal cable net and a construction method thereof. According to the system, a chimney and an air cooling towerare combined, the chimney adopts a reinforced concrete structure and is built in the center of the air cooling tower, the air cooling tower adopts a tension structure, and a structure membrane material is laid on the outer side; ground assembly is adopted in construction, then the chimney is hoisted to a certain height, and the chimney is fixed to a concrete chimney through stay cables; and the lower portion of a hyperbolic structure cable is tensioned until the structure reaches a certain rigidity, and an inhaul cable is arranged in the middle of the chimney to be anchored to a foundation inorder to enable the chimney to keep certain compression stability. According to the system, the chimney is combined with the air cooling tower, so that the possibility of building the air cooling tower by using a flexible material is realized, and the air cooling tower can be spliced and tensioned on site; a hoisting mode after ground assembly is adopted, so that high-altitude operation is effectively reduced; chimney construction land can be effectively saved, the using amount of concrete is reduced, and on-site wet operation is reduced; and the structural membrane material is light in selfweight and can achieve a higher height, and the chimney provides lateral support for the cable net and can resist a larger wind suction load.

The invention discloses a magnetostrictive twist guided wave sensor for rail bottom defect detection. The magnetostrictive twist guided wave sensor disclosed by the invention is of an open-close type structure, wherein a left clamping plate and a right clamping plate are hinged at the two sides of a bottom supporting plate respectively, the bottom supporting plate is installed on the lower surface of the rail bottom of a rail, the left clamping plate and the right clamping plate are installed at the two sides of the rail web of the rail respectively, and the left clamping plate and the right clamping plate are attached to the upper surfaces of the rail web and the rail bottom of the rail; four comb-shaped arrays are installed between a first support shell and a second support shell; each of the comb-shaped arrays comprises a magnetostrictive material layer, an excitation coil layer and a permanent magnet layer; the excitation coil layer wraps the periphery of the magnetostrictive material layer and then the permanent magnet layer covers on the excitation coil layer, the second support shell is used as an elastic wave transfer layer, the left clamping plate is connected with the excitation coil layer in the bottom supporting plate by a flexible flat cable, and the right clamping plate is connected with the excitation coil layer in the bottom supporting plate by a flexible flat cable. The invention discloses a guided wave sensor designed aiming at the special section of the rail and capable of exciting a twist guided wave with a single mode.

The invention discloses an ecological planting and breeding method for rice field loaches. The method comprises the following steps of S1, digging a breeding ditch around a rice field for breeding loaches; S2, laying anti-seepage films on the inner wall and the bottom of the breeding ditch; S3, exposing a dry pond of the breeding ditch to the sun for 8-10 days, filling the breeding ditch with 30-50 kg of quick lime per mu and water, and disinfecting the breeding ditch; S4, performing fertilization and fattening in a rice planting area, injecting water into the breeding ditch, and planting aquatic plants and algae; S5, performing rice planting: performing sowing from the middle ten days of April to the beginning of May, and transplanting rice seedlings in the middle ten days of May; and S6, in the middle ten days of May, putting young loaches into the breeding ditch, temporarily breeding the young loaches in the breeding ditch, and keeping a cement pipe valve in a closed state. According to the method, in the breeding process, the loaches can remove weeds and pests in the rice field, and excrement of the loaches can provide fertilizer for rice, so that the use amount of pesticide can be reduced, the use amount of the fertilizer can also be reduced, and the rice planting cost is reduced; and the loaches can also be used for loosening the soil of the rice field, so that the growth of the rice is facilitated, and resources are fully utilized.

The invention discloses an eddy current air inflow type nozzle for spraying a release agent. The eddy current air inflow type nozzle is characterized in that the eddy current air inflow type nozzle comprises an atomization head and a movable iron core. The atomization head is arranged in a nozzle cap, the nozzle cap is connected with a front valve body through a thread, the atomization head is clamped between the nozzle cap and the front valve body, and the front section of the movable iron core is arranged in the atomization head; the middle section of the movable iron core penetrates throughthe front valve body, the rear section of the movable iron core is arranged in a guide sleeve, and a coil framework is arranged on the rear face of the guide sleeve; the coil framework is wound witha coil, the coil framework is arranged in a rear shell, and a static iron core is arranged in the coil framework; and the rear end of the static iron core is clamped between the coil framework and therear shell through a shaft shoulder, the rear section of the guide sleeve is further arranged in the coil framework, and an electromagnetic coil wiring outlet is formed in the bottom face of the rearshell. According to the eddy current air inflow type nozzle for spraying the release agent, the nozzle has good response time, the actual requirements can be met, the using amount of the release agent can be reduced, the economic benefits of enterprises are improved, and the pollution to the environment is greatly relieved.

The invention provides a device and a method for synthesizing organic matters from methanol under the assistance of a plasma electric field. The method comprises the following steps that raw material gas containing methanol gas is fed into a plasma electric field unit to be decomposed and synthesized, an organic mixture is obtained, the number of an electric field in the plasma electric field unit is at least one, and the plasma electric field unit at least contains one high-voltage direct-current negative electric field. According to the invention, the plasma electric field unit at least containing one high-voltage direct-current negative electric field is adopted, and the feeding condition of the raw material gas and the selection of the next electric field can be adjusted according to the synthesis condition of the product in the previous electric field and the finally obtained product, so that the synthesis of the organic matter is more flexible, and a high-yield final product can be obtained.

The invention provides a fresh-keeping cabin for seafood and a fishing boat, wherein the fresh-keeping cabin is arranged on the fishing boat, and comprises a cabin space and a communicating part whichis used for communicating the inside of the cabin space with the outside of the cabin space and guaranteeing seawater circulation inside and outside the cabin space. The fresh-keeping cabin ensures both normal survival and freshness of seafood through direct contact of seafood and seawater. Take fishes as an example. The fishing boat provided with the fresh-keeping cabin for seafood also has thefresh-keeping effect for live fishes. The fresh-keeping cabin for seafood can improve the quality of fishes and the economic benefit of fishing, reduce the energy waste in the methods such as freezingand the like, lower the hardware requirement on fleets' cooperation methods, save the cost, and improve the economic benefit.

The invention discloses a method for recycling glutamic acid from desalting liquid. The method comprises the following steps: adding water in desalting liquid to ensure that ammonium sulfate is dissolved, then sending the solution to a tank provided with a cooling coil to cool, then using a plate-and-frame filter press to separate material, sending the obtained liquid material, namely impurities to the subsequent process, performing acid hydrolysis to the obtained solid material, performing one-step extraction again, and purifying to obtain glutamic acid. The recovery rate is up to 60%-70%.

The invention belongs to the technical field of pharmacy, and relates to a comprehensive recovery method of effective components in N-haloacetyl-7-ACA crystallization mother liquor, which comprises the following steps of: specifically adsorbing N-haloacetyl-7-ACA in the mother liquor by adopting non-polar macroporous adsorption resin under the condition that the pH value is 2-4, and desorbing and crystallizing to obtain a qualified N-haloacetyl-7-ACA finished product; adjusting the pH value of the triethylamine salt in the adsorption residual liquid to 12-14, converting into triethylamine, and obtaining a qualified triethylamine product through liquid separation and rectification. The comprehensive recovery method provided by the invention provides an environment-friendly and economical treatment method for the product waste liquid in the production process of the N-haloacetyl-7-ACA, and has obvious effects on reducing environmental pollution and improving economic benefits.

The invention relates to equipment for integrally treating oil-water separation of kitchen garbage, composed of four parts as follows: an electronic display controller, a garbage material storage separator, an oil-water separation tank and an oil-water product recycling device. Safe and high-efficiency oil-water separation integrated treatment of the kitchen garbage is realized. Furthermore, resource and harmless treatments of the kitchen garbage are well realized. By means of the equipment disclosed by the invention, hogwash harm can be stopped at the source; and the shortage of resources inour country can be relieved.

The invention discloses a preparation method of a high-yield silver nanowire. The preparation method comprises the following steps of (1) conducting stirring and dispersing of a polyvinylpyrrolidone polyhydric alcohol solution for 60-120 minutes at the temperature of 140-170 DEG C, wherein the PVP polyhydric alcohol solution comprises a polyhydric alcohol solution A with the PVP molecular weight of 40000-58000 and a polyhydric alcohol solution B with the PVP molecular weight of 240000-400000; (2) adding a seed crystal inducer solution, and continuously conducting stirring for 15-30 minutes atthe stirring speed of 150-350 rpm and the temperature of 140-170 DEG C; (3) dropwise adding a silver salt solution into the solution, keeping the stirring speed of 150-350 rpm and the temperature of 140-170 DEG C, making a reaction for 2-4 hours, and conducting cooling at room temperature; (4) centrifuging a product for 15-60 minutes at the speed of 4000-18000 rpm, and removing supernatant; and (5) injecting ethanol into the product to ultrasonically clean the product silver nanowire in the ethanol, drying an obtained suction filtration product at 50-100 DEG C, so as to obtain pure silver nanowire powder. The yield of the silver nanowire reaches up to 95%, the process steps are simple, and the reducibility is high.

The invention relates to coconut milk ice cream, which comprises the following components: 30-35% of vegetable cream, 10-12% of milk powder, 8-10% of white sugar, 5-7% of coconut powder, 0.2-0.3% of sucrose fatty acid ester, 0.1-0.2% of xanthan gum, 0.1-0.15% of coconut milk essence and the balance of water. A manufacturing method of the coconut milk ice cream comprises the following steps of: uniformly mixing the white sugar, the sucrose fatty acid ester and the xanthan gum; during mixing, slowly adding the mixture into the water at the temperature of 30-35 DEG C, and adding the milk powder and the coconut powder after the mixture is dissolved; dissolving and uniformly mixing, heating to the temperature of 80+/-2 DEG C, keeping the temperature for 15min, cooling to the room temperature, then adding the coconut milk essence, and uniformly mixing; and whipping the vegetable cream until the volume is increased by 3.0-3.5 times at the temperature of 10-15 DEG C, during slowly mixing, slowly adding the mixture into the whipped vegetable cream, uniformly mixing, standing at the temperature of minus 18-minus 22 DEG C, and refrigerating for over 12h, so as to obtain the coconut milk ice cream. The invention is especially suitable for cake shops, bakeries and other baking shops.

The invention relates to the technical field of detection of decorative building materials, and more particularly to a method for observing diatom ooze by a polarizing microscope. The method comprisesthe following steps: 1) weighing 28 g to 32 g of commercially available diatom ooze and placing the diatom ooze into a mortar, and adding 4 ml to 6 ml of alcohol to mix and grind for 4 to 6 minutes;2) taking 14 g to 16 g of evenly ground diatom ooze in step 1) into a beaker, adding 140 ml to 160 ml of alcohol, and placing the beaker on a magnetic stirrer for stirring for 8 to 12 minutes; and 3)sucking, with a straw, 4 to 6 drops of the mixed liquid obtained in step 2) onto a slide, then covering the slide with a cover glass, and then observing the diatom ooze by the polarizing microscope. The method effectively improves the diatom ooze observing efficiency after pre-mixing treatment; and the method is simple in process, has quickness in detection and has high economic benefit.

The invention discloses a multi-functional roller-shear mechanism which comprises a bed body, a left supporting frame and a right supporting frame, wherein the left supporting frame and the right supporting frame are arranged on the bed. An upper cutter shaft and a lower cutter shaft are arranged between the left supporting frame and the right supporting frame. Upper shear blades and lower shear blades are arranged on the upper cutter shaft and the lower cutter shaft. Through adjustment of screw rods and gaskets, changes of distance between the shafts and axial distance are achieved. Through replacement of groups of the gaskets, the group number of the shear blades can be adjusted according to requirements. Therefore, the situation that the number of machined wattles is changed is achieved, and then widths of the wattles are changed. Through a hard friction plate and a side roller-shear cutting method, burrs of sheet material are removed. A machine tool can be protected, and the quality of subsequent machining of cut semi-finished wattles is guaranteed. A cooler is arranged in the position of a cutting edge, the service life of a cutter can be prolonged and the machining quality is guaranteed. In brief, the multi-functional roller-shear mechanism can effectively improve production efficiency, more economical benefits are obtained and the product quality is guaranteed.

The invention provides a tomato planting method. The tomato planting method includes: a, seedling cultivating facility preparation: covering a seedling cultivating greenhouse with 'two nets and one film'; b, seed selection; c, seed soaking: airing seeds, soaking the seeds in chemical liquid and soaking the seeds in clean water; d, seedling cultivation: cultivating seedlings by plug seedlings or in feeding blocks; e, seedling management: keeping moisture and lowering a temperature; f, field planting: adopting organic fertilizer and compound fertilizer, and cultivating in wide and narrow rows; e, field management: managing the temperature, water, the fertilizer, flower pollination and a topping technology; h, disease and pest prevention. The tomato planting method has the advantages that since a precision management method is adopted, the organic fertilizer, inorganic fertilizer and the compound fertilizer are combined in use, and effective disease and pest preventing measures are taken, green environmental friendliness, safety, health, high yield, high economic benefit and the like are realized, and accordingly the tomato planting method is wide in market prospect in application and popularization of tomato cultivation.

The invention belongs to the field of dynamic simulation analytical methods and discloses a dynamic simulation analytical method for a locking device of a rail traffic vehicle door system, which mainly includes the following steps: (1) performing three-dimensional modeling on parts of the locking device in Solid Works software environment, and switching a three-dimensional model into a neutral format file capable of being guided into automatic dynamic analysis of mechanical system (ADAMS) software; (2) guiding the neutral file into the ADAMS software to generate an ADAMS multi-body dynamic simulation model of the locking device; (3) performing preprocessing setting on the simulation model, setting material properties, joint, load and driving, and performing simulation calculation; (4) setting up an experimental test platform and performing experiment tests; (5) comparing simulation results with experiment results; and (6) performing locking device dynamic characteristics simulation analysis with different parameters and under different working conditions. The dynamic simulation analytical method builds a virtual prototype for the locking device of the door system, performs optimal design for the locking device, reduces development cost and shortens development period.

The invention relates to a large-diameter directional long drill hole extraction method for a mining body gushing out of a gas roof, and belongs to the technical field of coal mining. The method comprises the following steps: S1, calculating and determining basic parameters of the large-diameter directional long drill hole of the roof; S2, before working face stoping, drilling to a coal seam roofrock stratum at a large-dip-angle upward pitching; and S3, gradually adjusting the drilling angle through the orientation technology so that the horizontal section of the drilled hole is arranged in the advancing direction of the working face, and then gas extraction is completed. The roof large-diameter directional long drill hole extraction success rate can be increased, the gas concentration ofa working face is reduced, the safety coefficient of the operation environment is increased, and economic benefits are increased.

The invention provides a novel dry process connected energy-consuming beam column joint based on a corbel. The joint comprises a prefabricated concrete corbel column, pre-buried steel plates and connecting steel plates, wherein the corbel section of the prefabricated concrete corbel column is stepped, and a notch section of a prefabricated concrete notch beam is matched with the stepped section ofthe corbel and is in lap joint to the stepped section; the pre-buried steel plates are separately pre-buried on the upper and lower surfaces of the corbel and the prefabricated concrete notch beam, friction plates are arranged outside the pre-buried steel plates, and slight tooth spaces are arranged on the sides, facing the pre-buried steel plates, of the friction plates; and the connecting steelplates are arranged on the left and side sides of the prefabricated concrete notch beam and the corbel lap joint section. The beam column joint overcomes the defect that it still needs to support a framework, cast concrete on site and maintain the concrete in a construction site in a current wet process operation, so that the construction efficiency is improved, a template bracket is reduced andthe economical benefit is improved.

The invention discloses a blast furnace slag modification method, and relates to the technical field of material modification. According to the method, hydrochloric acid is dropwise added into blast furnace slag original soil; full stirring is performed; a mixture is obtained; a template agent CTBA is added into the obtained mixture and is fully stirred till the dissolution; then, the mixture dissolved with the CTBA is put into a reaction kettle for hydrothermal reaction; the mixture subjected to hydrothermal reaction is cooled; then, suction filtration, washing and drying are performed; modified blast furnace slag is obtained. The blast furnace slag modification method has the advantages that the method is simple; the raw materials are convenient and cheap; the blast furnace slag original soil can be modified at low temperature; the energy consumption is low; the absorption performance of the modified blast furnace slag is better improved.

The invention relates to a vehicle-mounted hybrid energy storage device applied to urban rail transit. The vehicle-mounted hybrid energy storage device is connected with a power supply grid and is further connected with a train chief traction system and a train auxiliary system. The vehicle-mounted hybrid energy storage device comprises multiple sets of high-voltage half-bridge direct-current/direct-current converters, multiple sets of low-voltage half-bridge direct-current/direct-current converters, multiple sets of super capacitors for high-power discharge, multiple switching tubes for controlling pre-charge and terminal voltage, a storage battery pack which is formed by multiple storage batteries in serial-parallel connection and used for long-time discharge, and multiple sets of filter circuits for filtration. Compared with the prior art, the vehicle-mounted hybrid energy storage device disclosed by the invention can carry out self-traction by using the reserved power of the hybrid energy storage device when the power supply grid of vehicles is in an outage fault, so as to move the vehicles to a safe district to avoid a disaster. The vehicle-mounted hybrid energy storage device not only is small in size and light in weight, but also has the advantages of saving energy, reducing consumption, reducing energy consumption of the urban rail transit, improving economic benefits and the like.