47results about How to "Advanced and reliable technology" patented technology

The invention discloses an improved device and method for producing electrolytic manganese metal by a two-ore method. The method comprises the following steps of leaching, purifying, deeply purifying and electrolyzing; and two ore raw materials for electrolyzing the manganese metal by the two-ore method are low-grade manganese oxide ores and pyrite ores respectively, wherein the low-grade manganese oxide ores are with the manganese content of 15-25%, and the pyrite ores are tailings (the pyrite ores) of the mineral dressing of non-ferrous metal ores or primary ores. The method has the advantages that a product contains C and S, has low impurity and short production flow, is used for deeply purifying a manganese sulfate solution to eliminate the influence of reductive impurities in the solution on the electrolytic process, thereby realizing the normal electrolytic production and improving the quality of products. The method especially creates ways for the development and the utilization of low-grade lean manganese oxide ores and tailings (the pyrite ores) of the mineral dressing of non-ferrous metal ore.

The invention relates to an ore dressing method for copper sulfide nickel ores with high pyrrhotite content, belonging to the field of ore dressing methods for recovering copper and nickel metals from copper sulfide nickel ores. The ore dressing method comprises the following steps of: (1) carrying out closed circuit grinding in copper sulfide nickel ore aggregate; (2) carrying out bulk flotationon ground copper sulfide nickel ores; (3) carrying out open circuit choiceness on copper and nickel bulk concentrates obtained after bulk flotation; (4) separating copper and nickel from bulk concentrates obtained after open circuit choiceness; and (5) reselecting tailings produced by copper and nickel bulk flotation. In the invention, a specified proportion of ore dressing agent is added in a stage agent addition way in the flotation process, and nickel concentrates with 7.6% grade and 85.1% recovery rate and copper concentrates with 26.5% grade and 54% recovery rate can be obtained under the condition of 1.14% nickel grade and 0.3% copper grade of the original ores. The method has reliable and advanced process, high concentrate grade, good copper and nickel separation effect and high comprehensive recovery rate of valuable metals and is an ideal ore dressing method for copper sulfide nickel ores.

The invention discloses a preparation method for non-denatured II type collagen of an animal cartilage source. The preparation method is characterized by comprising the following steps: taking fresh and traceable animal cartilages as raw materials; carrying out purification treatment on the animal cartilages by virtue of processes of repeated freeze-thawing, ultrasonic degreasing, hypertonic solution decellularizing, acid-base softening and the like; carrying out processes of guanidine hydrochloride sugar-removing, pickling, compound enzyme treatment, multi-time salting-out, multi-time centrifugal purification, membrane dialysis, freeze-drying and the like, thereby obtaining spongy non-denatured II type collagen. The high-purity high-yield II type collagen obtained by the preparation method keeps the original complete triple-helix structure of the collagen, is high in biological activity, stable in structure, easy to store and beneficial to adhesion, growth and multiplication of cartilage cells, and can be used for preparing medical biological materials.

The invention discloses a photoelectric high-energy purification device for treating particulate matter 2.5 (PM2.5) in cooking fume. The photoelectric high-energy purification device comprises a plasma reaction system, a filtrate fog grid, a filtrate fog humidifying system and a photochemical and catalytic reaction system. The photochemical and catalytic reaction system comprises an ultraviolet generating array and catalytic reaction nets, wherein the catalytic reaction nets are respectively arranged in front and in back of the ultraviolet generating array. Cooking fume exhaust gas is purified after passing through the plasma reaction system, the filtrate fog grid, the filtrate fog humidifying system and the photochemical and catalytic reaction system in sequence. The photoelectric high-energy purification device also comprises an electrical control system. The electrical control system comprises a current induction module, an online monitoring module, an electrochemical sensing module and a display screen. The photoelectric high-energy purification device disclosed by the invention has the advantages that secondary pollution residues cannot be generated; the resource consumption is low; the operating cost is lower; management and maintenance are convenient; the process is advanced and reliable; real-time online operating data can be provided; and a data support of supervision and administration of law enforcement is provided for environmental-protection functional departments.

The invention discloses a hydrogen energy utilization gas mixing system and a hydrogen and natural gas proportioning control method, and relates to the technical field of renewable energy utilization.Source hydrogen enters a gas mixing pipeline and passes through an inlet ball valve, a pneumatic cut-off valve and a filter, the hydrogen flow is metered through a flow meter, the hydrogen consumption is adjusted through an adjusting valve, and then the hydrogen enters a gas mixing device through an outlet ball valve; source natural gas enters the gas mixing pipeline, passes through the inlet ball valve and a filter stop valve, is pressure-regulated and metered, reaches the outlet ball valve via the adjusting valve and then enters a gas mixing device; and detection equipment at a mixed gas outlet is matched with the flow value after temperature and pressure compensation to jointly control the opening degree of an adjusting valve on a natural gas and hydrogen pipeline and control the volume flow of hydrogen, online adjustment and automatic following of the hydrogenation amount are conducted, and natural gas and hydrogen proportioning is achieved. According to the invention, a stable gas mixing ratio of two gases is realized, the mixing precision is high, the equipment is integrally skid-mounted, and a stainless steel box body with heat preservation and noise reduction functions isexternally arranged, so that the equipment is compact and attractive, and is convenient to install and migrate.

The invention relates to air compressor reinforcement equipment. The air compressor reinforcement equipment comprises a vibrating hammer (2) and a vibrating air compressor pipe (9), wherein the vibrating air compressor pipe (9) is a seamless steel pipe; the vibrating hammer (2) is connected with the top of the vibrating air compressor pipe (9); a vibrating hammer center hole (1) of the vibrating hammer (2) and the vibrating air compressor pipe (9) are located in the same perpendicular line; a top end (3) of the vibrating air compressor pipe (9) is a closed valve; an air injection port (6) is formed in one side of the vibrating air compressor pipe (9); an air injection port valve (7) is arranged at the air injection port (6); a conical valve formed by multiple valve clacks (10) is arranged at the lower end of the vibrating air compressor pipe (9). When applied to soft soil foundation reinforcement construction, the air compressor reinforcement equipment mainly solves the problem that deep reinforcement of a soft soil foundation cannot be realized with an existing process and particularly silt soil and silt interlayer soil after reinforcement cannot meet various technical indexes required by design, the air compressor reinforcement equipment is high in operability, simple and practical and has quite board application prospect, and the technology is advanced.

The invention provides a device and a method for recovery treatment of solid-containing oil or an oil-containing solid phase through solvent extraction. The device comprises an extraction centrifugalunit, a sedimentation unit, a flash distillation unit and a spray drying unit, wherein the extraction centrifugal unit is used for extracting the solid-containing oil or the oil-containing solid phaseto obtain a centrifugal clear liquid and a centrifugal residue; the sedimentation unit communicates with the extraction centrifugal unit and is used for removing solid particles in the obtained centrifugal clear liquid to obtain a top-part liquid and a bottom-part liquid; the flash distillation unit communicates with the sedimentation unit and is used for distilling the obtained top-part liquid to obtain oil or asphalt and a solvent, wherein the solvent is recycled after heat is recovered; and the spray drying unit communicates with the extraction centrifugal unit and is used for recovering the solvent from the obtained centrifugal residue to obtain the solvent and a solid powder material. The device and the method provided by the invention have the advantages of capability of fully recovering an oil product or the solvent, insusceptibility to causing solidification and clogging, and applicability to large-scale recovery and utilization of resources like oil residue and oily silt.

The invention discloses an equalizing beam longitudinal joint back chipping-free full penetration submerged-arc welding forming process, comprising the steps of S1, preparing a plurality of sheet materials of which the sizes meet the requirements; S2, checking the flatness of the surfaces of the sheet materials, and performing cutting-raw-material on the sheet materials by adopting flame cutting; S3, performing cutting on longitudinal joint positions of a web and a heavy plate; S4, polishing and eliminating residual oxide skin at the position of a V-shaped groove; S5, performing flame roast on the longitudinal joint and periphery of the longitudinal joint of the sheet materials; S6, performing filling and capping in sequence on the longitudinal joint of the front surface of an equalizing beam by adopting submerged-arc welding; S7, performing polishing on the longitudinal joint of the back surface of the equalizing beam; S8, performing capping on the longitudinal joint of the back surface of the equalizing beam by adopting the submerged-arc welding; S9, performing ultrasonic UT flaw detection and ray RT flaw detection on the longitudinal joints of the equalizing beam; S10, cutting out an end tab and a run-off tab on the longitudinal joints; S11, performing labeling on the examined and qualified equalizing beam. According to the forming process provided by the invention, the aim that the production efficiency is increased, the labor intensity is lowered and the welding production cost is reduced is achieved.

The invention discloses coal bed gas produced water deep treatment equipment which comprises a raw water tank; the raw water tank is communicated with a solar heat collector through a raw water pump; the water outlet of the solar heat collector is communicated with the raw water side of a hydrophobic membrane component; the outlet of the freshwater side of the hydrophobic membrane component is communicated with an exhaust pipe of a vacuum ejector, and a water production tank is communicated with a water inlet and outlet pipe of the vacuum ejector through a water production pump; and the outlet of the raw water side of the hydrophobic membrane component is communicated with an evaporation tank. The treatment equipment can most recover coal bed gas produced water resource and most reduce the emission of pollutant, solves the difficult problems of coal bed gas field explored domestic water supply and environment protection, is characterized by advanced and reliable process, high automation degree, light weight, and convenient movement and transportation, greatly reduces the environment pollution so that the water drainage meets the environment protection standards, uses natural and green solar refrigeration, effectively improves the temperature of the solution to be treated, improves the separation efficiency and effect, and simultaneously, saves energy and reduces the cost.

The invention provides a comprehensive hotel management intelligent monitoring device, and mainly relates to the field of hotel intelligent monitoring systems. The device comprises a control module, asensor module, a video intelligent analysis module, a power module, a storage module, a monitoring center, and a plurality of detection modules. The control module comprises a smart CPU chip and a control signal output module. The control module is connected with the monitoring center through the communication module, and the power module supplies power to the control module. The storage module stores various monitoring information, and the video intelligent analysis module is used for intelligently analyzing the input monitoring video information. The device is simple in structure, is high in intelligent degree, and can achieve the omnibearing monitoring management of a hotel, such as guest room energy-saving monitoring, hotel security protection monitoring, guest check-in monitoring andindoor environment monitoring. The device is high in efficiency, is high in reliability, facilitates the integrated management, and can be widely used.

The invention discloses three-dimensional biological rotating disk A-RBC sewage treating process. The sewage treating process comprises the following steps: S1, sewage is drained into a grating well, a lot of larger-particle suspended articles and floating articles are intercepted by a grating in the grating well, and the sewage penetrates through the grating to enter the grating well; S3, an organism in the sewage is degraded, and mixed liquid flows back to an adjusting tank; S5, suspended matters in the sewage is further removed, and phosphorus in the sewage is removed at the same time; S6, nitrogen and phosphorus in the sewage are absorbed by vegetation in an artificial rapid infiltration tank, then the sewage flows automatically to enter a pipe type ultraviolet sterilizer, germs and the like in the sewage can be killed by ultraviolet rays emitted from the pipe type ultraviolet sterilizer to a pipeline, and treated clean water meeting a draining standard is drained into a ditch through the pipe type ultraviolet sterilizer. The three-dimensional biological rotating disk A-RBC sewage treating process has the advantages of effectively removing the organism, nitrate, the phosphorus and the suspended matters in the sewage, being advanced and reliable and being low in investment, convenient to operate and manage, reasonable in layout and good in treating effect.

The invention relates to a soft soil foundation excitation well digging device which comprises a well digging steel pipe, a vibratory hammer, a compressing hammer and a dewatering well pipe. A construction method of the soft soil foundation excitation well digging device comprises the steps that firstly, the well digging steel pipe is struck into the underground; the well digging steel pipe is filled with medium-coarse sand; then the well digging steel pipe is lifted up; the medium-coarse sand forms a sand well; then the well digging steel pipe is struck into the sand well; and finally the dewatering well pipe is put into the well digging steel pipe, and the well digging steel pipe is taken out. According to the soft soil foundation excitation well digging device and the construction method thereof, the dewatering construction problem that existing well drilling machinery cannot be adapted to a complicated site is mainly solved; the methods of vibration hole forming and steel pipe wall protecting are adopted, so that well digging construction of different soil textures can be adapted; the process of repeated digging and well forming is adopted, the medium-coarse sand is evenly squeezed in the hole wall in a dense mode, a whole water filtering layer from top to bottom is formed, and a foundation is established for lowering the underground water level and reducing the soil water content.

The invention discloses a preparation method of natto kinase tablets and solves the problem of ammoniacal odor existing in excessive fermentation of natto. The preparation method comprises the following steps: (1) soaking soybeans, carrying out steam boiling on the soybeans and removing partial liquid after the steam boiling; (2) inoculating the soybeans with bacillus subtilis and performing fermentation; (3) adding clear water to a natto fermentation mixture obtained by fermentation in the step (2), then performing homogenization and centrifugation and collecting supernatant liquid; (4) performing ultrafiltration on the supernatant liquid obtained in the step (3) to obtain an ultrafiltration concentrated solution; (5) performing column chromatography using a dextran gel G-50 column; and (6) freeze-drying the concentrated solution obtained in the step (5) to obtain powder, then adding an excipient and performing compression to obtain tablets. The method disclosed by the invention realizes preparation of fresh and odorless natto kinase tablets, the preparation method has a reasonable process and reliable technique, and the natto kinase has higher activity. The method can be widely used in deep processing of natto products and preparation of health products.

The invention provides a method for preparing hydrogen satisfying the automotive hydrogen standard from biomass gas. According to the method, fuel gas generated by a fixed bed biomass gasification furnace is used as a raw material; the method comprises the steps of compression treatment, deoiling and naphthalene removal treatment, CO conversion treatment, coarse desulfurization treatment, deamination treatment, pressure swing adsorption treatment, fine desulfurization treatment and dehydration treatment. The CO content of the hydrogen is less than 0.2 [mu]mol/mol, the total sulfur content of the hydrogen is less than 0.004 [mu]mol/mol, and the hydrogen yield is ten millions cubic meters per year. The method has the advantages of advanced and reliable process technology, high biomass gas utilization and energy utilization rate, high device self-control degree, clean production process and the like, and accords with national industrial policies, energy policies and environmental protection policies.

The invention relates to an automatic safety protection control system for a railway crossing of a metallurgical enterprise, and the system comprises a track circuit signal collector, a remote control host, a crossing controller and a crossing protection device; the track circuit signal collector and the crossing controller are in signal connection with the remote control host; the track circuit signal collector is used for collecting track circuit signals and turnout state signals and analyzing the signals to obtain condition instructions that a train approaches a crossing, and the crossing protection device comprises a crossing signal machine, a crossing barrier machine, an uplink proximity sensor, a downlink proximity sensor and a safety protection sensor. The crossing controller comprises a CPU module, a proximity sensor interface, a railway signal module and a safety protection module, the uplink proximity sensor and the downlink proximity sensor are both connected to the proximity sensor interface, the crossing signal machine is connected to the railway signal module, and the safety protection sensor and the crossing barrier machine are connected to the safety protection module. According to the invention, intelligent and automatic control of crossing protection equipment is realized.