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A kind of black film methane tank mud scraping and residue discharging device
This utility model discloses a sludge scraping and slag removal device for a black film biogas digester, belonging to the field of biogas digester technology. It includes: a sludge discharge pipeline system located inside the black film digester; the sludge discharge pipeline system includes a main sludge discharge pipe, with sludge discharge branch pipes connected to both sides of the main sludge discharge pipe, and a fixed cylinder installed at the end of each branch pipe away from the main sludge discharge pipe. This utility model uses a pump installed on the sludge discharge pipeline system to generate suction on the sludge, causing the sludge to be discharged upwards from the bottom of the digester along the branch pipes and the main sludge discharge pipe. When the sludge passes through the inside of the fixed cylinder, it pushes the impeller plate on the connecting shaft, which in turn drives the mounting base and flexible scraper rod to rotate. This facilitates light scraping of the sludge around the inlet of the branch pipe, loosening the accumulated sludge and making it easier for the sludge to collapse under gravity. Simultaneously, a backwashing system uses water pressure to flush the sludge at the bottom of the digester, reducing the integrity of the sludge, increasing its fluidity in the wastewater, and making it easier to discharge.
Owner:WUHAN QISHUO ENVIRONMENTAL ENG CO LTD
Construction guardrail convenient to adjust
ActiveCN222314797UEasy to adjustprevent collapseFencingBuilding constructionsArchitectural engineeringStructural engineering
The utility model relates to the technical field of constructional engineering, and discloses a construction guardrail convenient to adjust, which comprises a support column, a connecting sleeve, a fixing block and a universal wheel, fixing components are arranged on two sides of the outer wall of the support column and the bottom of the fixing block, an adjusting mechanism is arranged in the connecting sleeve, and the universal wheel is arranged on the connecting sleeve. The fixing assembly comprises a first screw rod, a limiting column, a supporting base, a concave base, a rotating rod, a supporting sleeve, a supporting rod, a first groove and a second screw rod, and the adjusting mechanism comprises a connecting rod, a first spring, a second groove, a pull rod, a second spring and a second fixing plate. The supporting rod is not located in the first groove any more, and therefore the height of the supporting rod is changed.
Owner:HUBEI WEIDILONG CONSTR ENG CO LTD
Vehicle body front end structure and vehicle
ActiveCN120588929BSolve problems such as uneven light and shadow in appearancegood lookingControl theoryMechanical engineering
The application provides a vehicle body front end structure and a vehicle. The vehicle body front end structure comprises a reinforcing support arranged on a front bumper, the reinforcing support comprises a main body part and an extension part arranged at the bottom of the main body part; the main body part is connected with a bumper body of the front bumper, the bumper body has a mounting area for mounting a license plate, the extension part extends downward along the up-down direction of the whole vehicle, and a connecting part is arranged on the extension part, the connecting part is located at the rear side of the mounting area and is connected with a lower grille of the front bumper. The vehicle body front end structure has the extension part arranged on the main body part and connected with the lower grille, which is beneficial to improving the strength of the vehicle body front end in the up-down direction of the whole vehicle and the continuity of force transmission, and the fastening stress point when the connecting part is connected with the lower grille is located in a non-visual area, which is beneficial to solving the problem of visual light shadow disorder of the front bumper caused by force pulling and improving the appearance of the front part of the whole vehicle.
Owner:ZHANGJIAGANG GREAT WALL MOTOR R&D CO LTD
A composite core usable for squeeze casting and die casting
The application discloses a composite core which can be used for extrusion casting and pressure casting, and is composed of an inner core and a sand core layer, and can be used for extrusion casting and pressure casting, and can make the core free from preheating, and the sand core layer can be easily collapsed, so that the core can be easily taken out after the casting is completed.
Owner:ZHEJIANG YAWEI PRECISION MASCH TOOL CO LTD
A primary dust collector structure for dry coke quenching
ActiveCN113018988BEasy to collapsestable structureCoke quenchingDispersed particle separationThermodynamicsCoke
The present invention relates to a dry coke quenching primary dust collector structure, comprising a dust collector body, one end of the dust collector body is an air inlet, and the other end is an air outlet; the bottom surface of the dust collector body is composed of an inlet side horizontal section, an inlet side inclined section, an ash discharge port, an outlet side inclined section and an outlet side horizontal section in sequence from one end of the air inlet to one end of the air outlet; the outlet side horizontal section is not set lower than the inlet side horizontal section, and the ash discharge port is located below the outlet side horizontal section and the inlet side horizontal section; a step section is provided on the top of the dust collector body; the step section is tilted as a whole, and its bottom end is located above the ash discharge port, and the upper end of the step section extends toward the air inlet end of the dust collector body. In the present invention, the step section has the function of a large retaining wall and has a stable structure; the inlet side horizontal section is short or not provided, which can reduce the accumulation of coke powder, reduce system resistance, and save energy while achieving the coke powder separation effect.
Owner:ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC
Preparation method of lithium ion adsorption material and application thereof
The application discloses a preparation method of lithium ion adsorption material and application thereof, and belongs to the technical field of lithium ion adsorption material. The method comprises the following steps: dissolving a spinning polymer in a solvent, adding nano lithium adsorbent powder, performing electrostatic spinning on the obtained spinning suspension liquid, placing the obtained fiber felt in water to perform homogenization, obtaining a nano short fiber dispersion liquid, adding an anionic surfactant to the nano short fiber dispersion liquid, stirring and foaming, adding a cationic polyacrylamide solution to perform flocculation after the foaming is completed, drying the obtained wet foam to obtain a fiber-based solid foam, immersing the fiber-based solid foam in a reinforcing liquid, and then performing filtration and heating drying, so as to obtain the lithium ion adsorption material.
Owner:GUANGDONG BRUNP RECYCLING TECH CO LTD +1
Method for supercritical separation and extraction of astaxanthin
PendingCN122079844ASuitable polaritySuitable viscositySemi-permeable membranesOrganic chemistryNatural productBiochemical engineering
The invention relates to the technical field of separation and extraction of natural products, in particular to a method for supercritical separation and extraction of astaxanthin, which comprises the following steps: (1) weighing raw material components in parts by weight; (2) mixing a biomass raw material rich in astaxanthin with the functionalized deep-eutectic solvent, and performing physical field enhanced extraction to obtain an extracting solution; (3) filtering the extracting solution through a vibrating membrane, and purifying to obtain a trapped fluid containing astaxanthin; and (4) carrying out supercritical CO2 back extraction on the trapped fluid, separating to obtain an astaxanthin product, and recovering the functional eutectic solvent. According to the method, continuous membrane separation and purification under the eutectic solvent system are realized, the purity of astaxanthin and the proportion of all-trans astaxanthin are maintained while the extraction rate of astaxanthin is increased, the solvent can be recycled after being recovered, and the production cost and waste liquid discharge are greatly reduced. All the raw materials are nontoxic and harmless, no organic solvent is used in the technological process, and good application prospects are achieved.
Owner:ERFA BIOTECHNOLOGY (JIAXING) CO LTD
Foot support structure and vehicle
ActiveCN222360890UImprove ride comfort performanceavoid damageVehicle arrangementsControl theoryMechanical engineering
Owner:NOBO AUTOMOTIVE SYST CO LTD
Preparation method of multi-system composite shell for directional and single-crystal blades
The invention relates to a preparation method of a multi-system composite shell for an orientation and single crystal blade. The preparation method comprises the following steps: coating a surface layer with fused corundum powder or zircon powder, and coating a transition layer and a back layer with the composite matching of fused mullite powder, fused corundum powder, modified fused quartz powder and zircon powder materials. The modified fused quartz powder comprises 90%-95% of fused quartz powder, 3%-8% of graphite powder and 1%-3% of organic fibers. 5%-10% of a reinforcing agent needs to be added in the preparation of the zircon powder slurry. According to the method, the shell is prepared by compounding two or three refractory materials, and the characteristics of high strength, high thermal stability and easy collapsibility of corresponding materials are integrated. According to the method, the wet strength of the ceramic shell can be improved, the deformability of the shell is remarkably improved while the high-temperature strength is guaranteed, the defects of orientation, recrystallization, cracks and the like of single crystal blades caused by poor deformability of the shell can be avoided, and the qualified rate level is greatly improved.
Owner:SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
Air inlet flow guide structure and vehicle
ActiveCN222291492UImprove cooling effectReduce the temperaturePropulsion coolingCold airThermodynamics
The utility model provides an air inlet flow guide structure and a vehicle. The air inlet flow guide structure comprises a first flow guide part arranged in a front cabin and a second flow guide part located above the first flow guide part. The first flow guide part is located in front of a heat dissipation device in a front cabin, and the second flow guide part is provided with a ventilation opening corresponding to an air inlet of an engine. The first flow guide component is provided with a main flow channel corresponding to the heat dissipation device and a branch flow channel communicated with the main flow channel, the branch flow channel extends towards the second flow guide component, and airflow in the branch flow channel can enter an air inlet of the engine through the ventilation opening. According to the air inlet flow guide structure, the main flow channel is arranged on the first flow guide component, cold airflow can be guided to cool the heat dissipation device, the branch flow channel communicated with the main flow channel is arranged on the first flow guide component, the cold airflow can be guided to directly flow to the ventilation opening, and therefore the air inlet temperature of an engine can be reduced, and the engine can be cooled conveniently. And the use performance of the engine is improved.
Owner:ZHANGJIAGANG GREAT WALL MOTOR R&D CO LTD
Adsorption material for sewage treatment
PendingCN119303550AImprove adsorption capacitystable structureOther chemical processesWater contaminantsSewageSewage treatment
The invention discloses an adsorption material for sewage treatment, and belongs to the field of sewage treatment. The adsorption material is formed by compounding a quaternary ammonium salt chitosan-MOF material and aerogel. The preparation method comprises the following steps: quaternizing chitosan to obtain quaternary ammonium salt chitosan, modifying an MOF material with the quaternary ammonium salt chitosan to obtain HACC-coated Cu-MOF, and compounding the HACC-coated Cu-MOF and aerogel to obtain the adsorption material HACC-coated Cu-MOF-aerogel. The HACC-coated Cu-MOF has the characteristics of good adsorbability to heavy metal ions, porosity and stable structure, and is combined with the characteristics of large adsorption capacity and high adsorption efficiency of aerogel, so that the adsorption material with high adsorption efficiency and stable structure is prepared, and sewage containing heavy metals such as Pb < 2 + >, Cu < 2 + > and Cr < 6 + > is treated.
Owner:ANHUI MEIZIRAN ENVIRONMENTAL TECH
Preparation method and application of starch-based ionic porous polymer
ActiveCN119391033AImprove adsorption capacityFacilitate graftingGas treatmentDispersed particle separationCross linkerMaterials science
The invention discloses a preparation method of a starch-based ionic porous polymer (H-ST-LA-IL) and application of the starch-based ionic porous polymer (H-ST-LA-IL). The method comprises the following steps: firstly, modifying starch by adopting lactic acid under the action of a catalyst to obtain lactic acid-starch; highly reacting the lactic acid-starch with the ionic liquid and lactic acid free radicals under the action of an initiator to obtain ionic liquid functionalized starch; and finally, under the protection of N2 atmosphere, uniformly mixing the ionic liquid functionalized starch, a cross-linking agent and 1, 2-dichloroethane, adding a catalyst, carrying out heating reaction, and carrying out suction filtration, Soxhlet extraction and drying to obtain H-ST-LA-IL. The ionic liquid is chemically bonded to a starch molecular chain and serves as a crosslinking reaction site to generate strong chemical action with crosslinking agent molecules, the crosslinking strength of a crosslinking agent on the starch molecular chain is improved, and the starch-based ionic porous material with the high specific surface area is constructed. The alkaline group of the ionic liquid can construct an alkaline adsorption microenvironment in an H-ST-LA-IL pore channel, so that efficient capture of aldehyde VOCs is realized.
Owner:GUANGXI UNIV