Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

111results about How to "Rapid precipitation" patented technology

Comprehensive recovery method of lithium iron phosphate black powder

The invention relates to a comprehensive recovery method of lithium iron phosphate black powder, and belongs to the technical field of lithium iron phosphate battery recovery. The technical problem to be solved by the invention is to provide the lithium iron phosphate black powder comprehensive recovery method. The method comprises the following steps: mixing lithium iron phosphate black powder with acid, and adding an oxidizing agent for reaction to obtain iron phosphorus slag; the iron phosphorus slag is subjected to acid pickling and then acid leaching to obtain secondary acid leaching liquid; and dropwise adding the secondary acid leaching solution into bottom water to generate a precipitate, and adjusting the molar ratio of phosphorus to iron or the molar ratio of phosphorus to (iron and manganese) to obtain battery-grade iron phosphate or ferromanganese phosphate. According to the method, alkali is not adopted as a precipitator, iron powder is not introduced, iron phosphate or the ferromanganese phosphate precursor is obtained through a normal-pressure one-step method, the problems that mixing is not uniform when the ferromanganese phosphate precursor is prepared through a solid-phase method, and alkali is needed as the precipitator or organic matter is introduced in a liquid-phase method are solved, use of alkaline chemical reagents and generation treatment of by-products are reduced, and the method is suitable for industrial production. The method has the advantages of simple process, low equipment use requirements, battery grade and high purity of the prepared product, improves the utilization rate of the phosphorus source, and has high yield.
Owner:TIANQI LITHIUM CORP +2

Multipurpose synthetic purifying agent and use method thereof

The invention belongs to the technical field of synthetic purifying agents, and discloses a multipurpose synthetic purifying agent and a use method thereof, and the purifying agent comprises the following components in percentage by weight: 18-50% of ferric trichloride; 2-37% of polyaluminum ferric chloride; 10 to 60 percent of calcium chloride dihydrate; 22 to 52 percent of ferrous sulfate; 5-45% of polyaluminum chloride; 10-30% of basic aluminum chloride; according to the invention, COD in wastewater can be rapidly removed, the pH value is neutralized, the hydrophilicity is changed, a diffusion layer is compressed, the counter-ion effect is increased, and the purpose of oxidation reduction is finally achieved; in the hydrolysis process, a surfactant and various pollution factors in wastewater can be effectively adsorbed and polymerized into jelly, and the jelly is rapidly precipitated and separated in a short time, so that the wastewater is purified.
Owner:SHANGHAI WEIZE WATER TECHNOLOGY DEVELOPMENT CO LTD

Production method for reducing casting blank cracks

The invention relates to the technical field of metallurgy, in particular to a production method for reducing casting blank cracks, which comprises the following procedures: (1) pre-desulfurizing molten iron; (2) smelting in a converter; (3) LF refining; (4) RH refining; (5) slab continuous casting; and (6) hot charging and rolling. By optimizing the chemical components and the mass percentage of the continuous casting billet and regulating and controlling the technological parameters of multiple procedures such as converter smelting, LF refining, RH refining, slab continuous casting and hot charging rolling, the austenite grain size in the microstructure of the surface layer of the continuous casting billet is refined, the high-temperature plasticity of the continuous casting billet is improved, and cracks on the surface of the continuous casting billet are reduced.
Owner:SD STEEL RIZHAO CO LTD

A construction site wastewater treatment system

The invention discloses a construction site wastewater treatment system, which relates to the field of wastewater treatment equipment and comprises a box body, wherein a box cover is provided on the top of the box body, and a straight roller and an inclined roller are provided below the box cover, both ends of the straight roller and the inclined roller are rotatably mounted on the side wall of the box body, a leakage gap is provided between the straight roller and the inclined roller, a partition storage box is provided below the leakage gap, symmetrical drainage plates are provided above the two side walls of the partition storage box, and the drainage plates are located below the straight roller and the inclined roller, an electric chain belt is provided on the side surface of the partition storage box, and an oil removal rod group is provided on the side surface of the chain link of the electric chain belt, and the oil removal rod group removes grease on the surface of wastewater in the partition storage box under the drive of the electric chain belt, and an extrusion recovery box is provided on the outer side of the oil removal rod group, and the extrusion recovery box is installed on the box body and used for recovering grease.
Owner:NANTONG HUARONG CONSTR GRP CO LTD +1

Volute solid-liquid separation clarification device

The invention discloses a volute solid-liquid separation clarification device which comprises a bottom shell and a volute plate, the bottom end of the volute plate is fixedly connected with the bottom shell, the bottom shell is conical, the bottom end of the volute plate is attached to the inner wall of the bottom shell, and the outer end of the volute plate and the bottom shell are jointly connected with a baffle. A spiral / volute-line-shaped / vortex-line-shaped flow channel is formed in the vortex-shaped plate, a water outlet of the spiral flow channel is formed above the baffle, mixed liquid needing solid-liquid separation flows from the inner ring end of the vortex-shaped plate to the water outlet along the spiral flow channel, and a plurality of discharging openings are formed in the bottom of the bottom shell in a penetrating mode. A plurality of discharge pipes communicated with the discharge ports are fixedly mounted at the bottom of the bottom shell; by arranging the bottom shell, the vortex-shaped plate, the baffle, the multiple discharging openings and the like, the advantages of three solid-liquid separation modes of horizontal flow precipitation, vertical flow precipitation and centrifugal separation are integrated, the sizes of D1 and D2 can be designed in a targeted mode according to the characteristics of materials needing to be separated, the precipitation position is controlled, and small occupied space and classified separation of the materials are achieved.
Owner:XINJIANG DEAN ENVIRONMENTAL PROTECTION TECH CO LTD

Construction structure of complex riverbed steel pipe pile combined cofferdam

The utility model relates to a construction structure of a complex riverbed steel pipe pile combined cofferdam. According to the scheme, the construction structure comprises a grooving guide frame and a drilling platform; the heightening steel casing system is welded on the steel casing; the assembled insertion type section steel hanging system comprises a top supporting frame formed by splicing a plurality of layers of ring beams, inner supports, a plurality of pieces of second section steel and a plurality of pieces of third section steel, hanging devices installed at the ends of the second section steel and the ends of the third section steel and hanging rods penetrating through the first layer of ring beams, and the assembled insertion type section steel hanging system is hung above a steel casing through the hanging rods. A hollow hydraulic jack; the multi-layer guide frame system comprises inner side guide frames and two layers of outer side guide frames erected on Bailey beams of a trestle and brackets welded to steel pipe piles, and the inner side guide frames are two layers of ring beams in hanging; the movable guide frame is located above the multi-layer guide frame system; a water stop wall; a precipitation well; an inner support efficient support changing device position; and prefabricating a bottom sealing concrete bottom plate.
Owner:HUBEI ROAD & BRIDGE GRP CO LTD

Grate type combustion furnace

The utility model provides a grate type combustion furnace which comprises a furnace body, a cavity is arranged in the furnace body, an ignition mechanism is arranged in the cavity, an air supply port, a fuel feeding port and a high-temperature smoke outlet are arranged on the furnace body, and the grate type combustion furnace is characterized in that a plurality of layers of grate plates which are sequentially overlapped in a staggered mode are arranged in the cavity of the furnace body from top to bottom, and the high-position ends of the plurality of layers of grate plates are connected with the fuel feeding port. The rest of the grid plates extend towards the high-temperature flue gas outlet, the heights of the grid plates are reduced layer by layer, a plurality of air holes are formed in the grid plates, the multiple layers of grid plates are connected with a translation driving mechanism, and the air holes are connected with external air supply equipment through an air supply mechanism. The horizontal moving driving mechanism drives the multiple layers of grid plates to stretch and retract forwards and backwards, so that fuel on the multiple layers of grid plates can continuously move from the fuel feeding port to the high-temperature flue gas outlet and is evenly laid on each layer of grid plates. Hot air supplied by external air supply equipment can be introduced into the cavity through the air holes, so that fuel continuously floats in the furnace body, and the effects of uniform preheating and uniform combustion are achieved. The quick separation of volatile components in the biomass fuel is improved, the combustion efficiency of the fuel can be improved, and the generation and emission of harmful substances are reduced.
Owner:ASHAN HONGFENG BUILDING MATERIALS CO LTD

Pickling device for pork food processing

The invention discloses a pickling device for pork food processing, and belongs to the field of pickling devices.The pickling device comprises a pickling box arranged at the bottom of a liquid spraying barrel, a hot salt groove is formed in the bottom of an inner cavity of the pickling box, and a conveying belt supporting assembly is arranged on the side face of the inner cavity of the pickling box. Through the arrangement of a salt raising plate and a flexible leaf plate, the salt raising plate can be driven by an extrusion plate to repeatedly beat the conveying belt, salt in a hot salt tank can be sprayed to the bottom of a meat slice through seepage holes to pickle the meat slice, and meanwhile, redundant salt adhered to the meat slice can be beat down; in addition, the meat slices are beaten by a salt raising plate and a flexible leaf plate, so that rapid precipitation of water in the meat slices can be promoted, drying of skin of the meat slices for water and juice locking can be accelerated, excessive loss of water or juice in the meat slices and influence on taste due to dryness of the cooked meat slices can be avoided, and by adopting the device, the pickling efficiency of the meat slices can be effectively improved; meanwhile, after being pickled, the meat slices are suitable for air drying and water immersion pickling.
Owner:HEILONGJIANG DONGRUN FOOD CO LTD

Backwash type high-turbidity water sedimentation tank

The backwashing type high-turbidity water sedimentation tank comprises a sedimentation tank body with an upward opening, a distributed water inlet mechanism is arranged on the outer side of the sedimentation tank body, and a sedimentation backwashing mechanism is arranged at the bottom in the sedimentation tank body; the dispersed water inlet mechanism comprises a dispersed water inlet buffer box body fixedly connected to the outer side of the sedimentation tank body, and a plurality of dispersed water inlet open grooves communicated with the interior of the dispersed water inlet buffer box body are formed in the side wall of the sedimentation tank body; a dispersed water inlet overflow groove body is fixed on one side, far away from the sedimentation tank body, of the dispersed water inlet buffer tank body, and is communicated with the interior of the dispersed water inlet buffer tank body through a dispersed water inlet overflow open groove; wherein the distributed water inlet mechanism can more uniformly and stably convey to-be-treated high-turbidity water into the sedimentation tank body, so that the sedimentation effect is prevented from being influenced by non-uniform water distribution; according to the linkage type inclined plate sedimentation mechanism, the sedimentation area is increased by utilizing a plurality of sedimentation blocking inclined plates, and the sedimentation distance of suspended particles is shortened, so that the sedimentation efficiency is improved.
Owner:WUXI DOUG ENVIRONMENTAL PROTECTION TECH CO LTD

A crystallization apparatus for preparing lithium hexafluorophosphate

This invention relates to a crystallization apparatus for preparing lithium hexafluorophosphate, comprising: a tank body, a feeding device provided on the top surface of the tank body, and an array of heat exchange components provided on the inner wall of the tank body. The heat exchange components include several heat exchange plates disposed on the inner wall of the tank body and arranged along the length of the tank body. This apparatus can increase the heat exchange area and enhance the heat exchange efficiency, enabling the uniform and rapid precipitation of lithium hexafluorophosphate crystals, and achieving continuous production with simultaneous crystallization and scale prevention.
Owner:FUJIAN LONGDE NEW ENERGY CO LTD

CaCO3-based validamycin controlled release preparation and preparation method thereof

PendingCN121926203APromote local oversaturationpromotion and nucleationBiocideFungicidesAcetic acidArginine
The invention discloses a CaCO3-based validamycin controlled release preparation and a preparation method thereof, and the preparation method comprises the following steps: taking glucose, amino acid and water as raw materials, reacting under a microwave heating condition, and standing to obtain carbon dots; wherein the amino acid is one or a mixture of more of lysine, histidine and arginine; the preparation method comprises the following steps: mixing validamycin, water and calcium acetate, stirring, adding carbon dots, and stirring to obtain a validamycin / carbon dot mixed solution; and adding a sodium carbonate aqueous solution into the validamycin / carbon dot mixed solution, stirring, standing, and drying the obtained precipitate to obtain the CaCO3-based validamycin controlled release preparation. The controlled release preparation has the characteristics of high drug loading rate, controllable drug release, simple preparation process and the like, and provides a new strategy for developing CaCO3-based nano pesticides.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES

A crystallization device for N-vinyl pyrrolidone

The invention discloses a crystallization device for N-vinyl pyrrolidone, and the invention relates to the technical field of crystallization devices. In the process of evaporation and crystallization, it is necessary to heat and evaporate the water in the solution to precipitate crystals. However, in the process of leading out the water vapor, due to the low external temperature, the water vapor is condensed and flows back, and enters the solution again, resulting in reduced crystallization efficiency and increased energy loss. Therefore, through the restriction of a bottom ring and a top ring, the water vapor can only be led out from an opened gap after the air pressure is increased, and the reflux of condensed water is restricted. At the same time, the bottom ring is matched with the top ring and the guide groove, and the condensed water before the bottom ring and the top ring is introduced into a water accumulation cover through the guide groove, and the condensed water is led out of the device through a guide pipe to avoid condensation reflux, so that the evaporated water returns to the solution again, and needs to be heated and evaporated again, resulting in reduced crystallization efficiency and increased energy loss.
Owner:ULANQAB KEMA NEW MATERIAL CO LTD

A negative electrode material for an aqueous magnesium ion battery, a negative electrode sheet and a preparation method thereof

A negative electrode material, a negative electrode sheet and a preparation method thereof for an aqueous magnesium ion battery belong to the field of new energy technology. The negative electrode material for the aqueous magnesium ion battery of the present invention is manganese vanadium oxide. Mn and multivalent V can both change valence in electrochemical reactions, and can provide a large number of electrons for reactions, thereby increasing the specific capacity. And the potential is suitable, and it can be used as a negative electrode material for an aqueous magnesium ion battery.
Owner:CHINA THREE GORGES CORPORATION

Reclaimed water suspended matter collecting device

The utility model provides a reclaimed water suspended matter collecting device and belongs to the technical field of sewage treatment. The reclaimed water suspended matter collecting device comprises a main drainage pipe, one end of the main drainage pipe is fixedly communicated with a reducer union, one end of the reducer union is fixedly communicated with a flowmeter, one end of the flowmeter is fixedly communicated with a drainage pipe, the outer side of the drainage pipe is fixedly connected with a fixed support, and a connecting frame is pulled to drive a positioning frame to move; and after rotation is completed, the connecting frame is loosened, the spring pushes the positioning frame to be inserted into the positioning groove again to fix the switching frame, and operation is convenient and fast.
Owner:NINGXIA HUI AUTONOMOUS REGION WATER CONSERVANCY RES INST

A high-strength and toughness wind power bearing steel and its preparation method, use and a wind power bearing

The present invention belongs to the field of alloy steel and metallurgical technology, and specifically relates to a high-strength and toughness wind power bearing steel, a preparation method, a use, and a wind power bearing. The wind power bearing steel contains 1.88% to 3.96% Cu and 1.13% to 2.15% Ti. The preparation of the wind power bearing steel adopts molten steel smelting, LF refining, VD refining, three-stage gradient rolling and four-level performance heat treatment, so that there are Cu-rich primary precipitation phase and CuTi secondary precipitation phase in its microstructure matrix, and the phase interface between the Cu-rich primary precipitation phase and the matrix is ​​a completely coherent interface. The wind power bearing steel has the advantages of high yield strength, tensile strength, impact toughness, and elongation after fracture, has high strength and toughness, and is suitable for the harsh working conditions of wind power bearings.
Owner:JIANGYIN ZENKUNG FORGING CO LTD

Precipitation equipment for sewage treatment

The utility model discloses precipitation equipment for sewage treatment. The sewage treatment device comprises a lower sedimentation tank, an upper sedimentation tank and a treatment assembly arranged on the surfaces of the lower sedimentation tank and the upper sedimentation tank, the treatment assembly comprises a motor connected to the outer side surface of the lower sedimentation tank in a matched mode, the output end of the motor is connected with the input end of a rotating shaft, and the rotating shaft is connected into the lower sedimentation tank in a penetrating mode; one end of the mounting block is detachably connected with a transverse column, the surface of the transverse column is fixedly connected with stirring blades, the motor works to drive the rotating shaft connected with the output end of the motor to rotate, the rotating shaft rotates to drive the mounting block in matched connection with one end to rotate, and the mounting block drives the transverse column to rotate; the stirring blades fixedly connected to the surface of the transverse column rapidly stir sewage, the electromagnetic valve opens the discharge port to pour chemical raw materials in the shell into the sewage for reaction, and the electromagnetic valve cooperates with the stirring blades to rapidly precipitate the sewage, so that the overall precipitation efficiency is improved.
Owner:GUANGXI XINCHENG ENVIRONMENTAL PROTECTION TECH CO LTD

Integrated efficient sedimentation tank for enhancing flocculation process

The utility model provides an integrated efficient sedimentation tank for strengthening a flocculation process, which comprises a coagulation tank, a flocculation tank, a plug flow area and a sedimentation tank which are sequentially communicated, and a first stirring component is arranged in the flocculation tank; the first stirring assembly comprises a first spiral blade, a first transmission shaft, a first hub and a first axial flow blade, the first spiral blade is arranged on the upper portion of the first transmission shaft, the first hub is connected with the bottom end of the first transmission shaft, the first axial flow blade is arranged on the first hub, and the first hub and the first axial flow blade are located in the guide cylinder. According to the integrated high-efficiency sedimentation tank for strengthening the flocculation process, provided by the utility model, small flocs in the flocculation tank collide with and are fused into one another along with fluid, the flocculation time is prolonged, alumen ustum is continuously increased, and rapid sedimentation in the sedimentation tank is facilitated.
Owner:LANSHEN GRP CORP LTD

Underwater oxygenation generator for sewage treatment

The utility model relates to an underwater oxygenation generator for sewage treatment, and aims to solve the problems that as the current oxygenation generator mainly conveys oxygen to the bottom of a sewage pool through a pipeline, suspended matters in sewage easily fall into an exhaust port when the equipment is shut down, the exhaust port is easily blocked when oxygen is discharged again, and the sewage treatment efficiency is low. The device comprises an oxygenation mechanism and a floating assembly installed on the top of the oxygenation mechanism, buoyancy generated by the floating assembly is larger than the self weight of the oxygenation mechanism, and the oxygenation mechanism is horizontally arranged relative to the water surface when arranged in a water body. According to the utility model, inverted exhaust is adopted, so that the problem of exhaust blockage caused by falling of suspended matters in sewage is prevented, the effect of transferring oxygen into the sewage pool is improved, and the sewage treatment efficiency is improved. Moreover, oxygenation of sewage and rapid precipitation of suspended matters on the water surface are realized.
Owner:JIANGXI FIVE THOUSAND YEARS AGO ECOLOGICAL TECH CO LTD

A filtration mechanism and an apparatus for preparing industrial pure water.

This invention discloses a filtration mechanism and device for industrial pure water preparation, relating to the field of industrial pure water preparation technology. It includes an activated carbon filter with an inlet pipe and an outlet pipe connected to its upper and lower ends, respectively. A drain pipe is also connected to the lower end of the activated carbon filter. Solenoid valves are installed on the inlet, outlet, and drain pipes. A U-shaped sedimentation tank is fixedly connected to the lower end of the drain pipe, forming a sedimentation chamber. This invention improves upon existing activated carbon filters, enabling them to perform activated carbon rinsing, remove activated carbon dust, and collect the dust without wasting water resources. The rinsing operation is simple, and the rinsed activated carbon can be used directly, making it more convenient to use. This invention forms an improved solution that integrates low improvement cost, convenient operation, good rinsing effect, and water conservation.
Owner:JIANGSU CHANGBAO PLS STEEL TUBE

Method for recycling glass thinning etching waste liquid and waste residues

The invention relates to the technical field of industrial wastewater resourceful treatment, and provides a glass thinning etching waste liquid and waste residue resourceful method which comprises the following steps: treating glass thinning etching waste liquid by adopting a sodium chloride precipitation method to obtain first filter residue and first filtrate; neutralizing the glass thinning etching waste residues with ammonia water to obtain second filter residues and second filtrate; adding the second filter residue into the first filtrate, adding a part of the second filtrate, and stirring for reaction to obtain a third filter residue and a third filtrate; adding sodium fluosilicate seed crystals and sodium chloride into the third filtrate, and reacting to obtain fourth filter residues and fourth filtrate; lime is added into the fourth filtrate to adjust the pH value to be 11 or above, meanwhile, a modified flocculant accounting for 1-5% of the mass of the fourth filtrate is added, and a fifth filter residue and a fifth filtrate are obtained through a reaction; synergistic recycling of the glass thinning etching waste liquid and waste residues can be achieved, and particularly step-by-step recycling of the glass thinning etching waste residues can be achieved.
Owner:GUANGDONG HAIWEN ENVIRONMENTAL PROTECTION TECH CO LTD

Ti-v-zr-cr-al system ultra-high strength near-beta titanium alloy and preparation method thereof

ActiveCN119663051BReduce the difficulty of smeltingGood compatibility at α/β phase interfaceNuclear energy generationSolution treatmentIngot
The application discloses a Ti-V-Zr-Cr-Al system ultrahigh-strength near-beta titanium alloy and a preparation method thereof, and belongs to the technical field of titanium alloy materials. The ultrahigh-strength near-beta titanium alloy contains 5.0-5.5% of Al, 11.0-11.5% of V, 2.5-3.0% of Cr, 4.5-5.0% of Zr, and the balance of Ti and inevitable impurity elements according to mass percentage. In the preparation process, firstly, the alloy ingot is subjected to open forging, and then is subjected to upsetting and drawing forging after being cooled to a phase transition point, so that a certain amount of primary alpha phase is formed in the alloy and is uniformly distributed in beta grains, thereby obtaining a titanium alloy forging blank; and then, the titanium alloy forging blank is sequentially subjected to solid solution treatment and aging treatment, thereby obtaining a near-beta ultrahigh-strength titanium alloy with a duplex structure. The titanium alloy has a tensile strength of more than 1800 MPa, a yield strength of 1780 MPa, a fracture elongation of more than 3.2%, and a uniform elongation of more than 2.8%. In particular, the tensile strength reaches 1800 MPa, and the titanium alloy can meet the requirements of the fields of aerospace, energy industry and the like, and has high use value and popularization value.
Owner:XI AN JIAOTONG UNIV

Sewage treatment equipment for environmental protection

The utility model relates to the field of sewage treatment, in particular to sewage treatment equipment for environmental protection. The sewage treatment equipment for environmental protection comprises a foot stool, a water tank, screens, a sundry outlet and a sedimentation tank, the water tank is mounted on the left side of the upper part of the foot stool, at least one screen for filtering sewage is connected to the right side in the water tank, the sundry outlet is mounted on the front side of the right part of the water tank, and the sedimentation tank is mounted on the right side of the upper part of the foot stool. By arranging the motor, the stirring rod, the water outlet and the like, the motor is started to enable the stirring rod to rotate so as to stir sewage and a flocculating agent in the sedimentation tank, so that the sewage and the flocculating agent are fully mixed, the condensation speed of suspended particles in the sewage is accelerated, and the suspended particles are quickly precipitated and are carried by the sewage to be discharged into the precipitation separation barrel through the water outlet; the precipitation separation barrel is used for filtering the sewage, and suspended particles stay in the precipitation separation barrel, so that the purpose of quickly separating the suspended particles in the sewage is achieved, and the sewage treatment efficiency is improved.
Owner:ZIBO LINZI YUHETIAN ENVIRONMENTAL ENG CO LTD

High-efficiency low-consumption high-load device and method for capturing carbon and removing phosphorus by contact stabilization method

The invention discloses a high-efficiency low-consumption high-load carbon capture and phosphorus removal device and method by a contact stabilization method, the device comprises a sewage pool, an SBR (sequencing batch reactor) communicated with the sewage pool, a denitrification reaction pool communicated with a water outlet pipe in the middle of the SBR, an anaerobic digester communicated with a sludge discharge pipe at the bottom of the SBR, and a charcoal desliming device arranged on one side of the anaerobic digester. The method comprises the following steps: S1, feeding water and stirring; s2, SBR (sequencing batch reactor) treatment; s3, sludge fermentation; and S4, recovering the magnetic biochar. The magnetic biochar is added into the high-load SBR reactor with stable contact, adsorption of organic carbon and phosphorus in sewage is synchronously promoted, the trapping effect of soluble organic matter is further improved, adsorption of organic carbon and phosphorus in sewage is promoted, and the stable and efficient carbon trapping and phosphorus removing effect is guaranteed.
Owner:NANJING UNIV

Potassium magnesium phosphate cement-based material with high compactness and high salt corrosion resistance and application of potassium magnesium phosphate cement-based material

The invention relates to the technical field of magnesium phosphate cement materials, and particularly discloses a magnesium potassium phosphate cement-based material with high compactness and high salt corrosion resistance and application of the magnesium potassium phosphate cement-based material. The magnesium potassium phosphate cement-based material is prepared from the following components in parts by weight: 30 to 40 parts of dead burned magnesium oxide, 15 to 20 parts of monopotassium phosphate, 3 to 5 parts of retarder, 0.01 to 0.03 part of crystalline phosphate, 30 to 40 parts of fine aggregate and 8 to 13 parts of mixing water. Wherein the molecular formula of the crystalline phosphate is KNaMg2 (PO4) 2.14 H2O. By introducing the crystalline phosphate in a special structural form, the hydration evolution path and the microstructure of the magnesium potassium phosphate cement-based material in a salt erosion environment are effectively improved, and the salt erosion resistance is remarkably improved.
Owner:UNIV OF JINAN

Inclined plate precipitator for sewage treatment as well as water flow distributor and secondary water distribution tank of inclined plate precipitator

The invention discloses a water flow distributor, and relates to the field of sewage treatment, the water flow distributor comprises a closed transverse pipe, one side of the transverse pipe is communicated with a water inlet pipe, the top surface of the transverse pipe is connected with a plurality of flow dividing pipes, the flow dividing pipes are respectively inserted into a plurality of bee eyes from bottom to top, and a distance is reserved between the flow dividing pipes and the tops of the bee eyes; the inclined plate precipitator comprises a plurality of groups of water flow distributors, transverse pipes in two adjacent groups of water flow distributors are arranged in an up-and-down staggered manner, and the number of shunting pipes is different; one side of each transverse pipe is communicated with the water inlet pipe through a secondary distribution pipe; the secondary water distribution tank for the inclined plate precipitator is arranged at the upper part of the inclined plate precipitator and comprises a tank body, a water inlet pipe on the tank body and a plurality of secondary distribution pipes on the side part of the tank body, according to the invention, the sewage treatment efficiency is improved by 8-10 times compared with the traditional sewage treatment efficiency, and the treatment time is also accelerated by 8-10 times.
Owner:TIANJIN XINXING ENVIRONMENTAL PROTECTION EQUIP TECH CO LTD

Directional drilling slurry circulating treatment method for ecological sensitive area

The invention provides a directional drilling slurry circulating treatment method for an ecological sensitive area, and belongs to the technical field of slurry treatment. Comprising a main tank body, a stirring rod is installed in the main tank body, a supporting frame is fixedly connected to the top of the main tank body, a blocking mechanism and a locking mechanism are annularly distributed in the main tank body, an unlocking mechanism is arranged on the side face of the locking mechanism, and a synchronizing mechanism is movably connected to the top of the supporting frame. By arranging the blocking mechanism, circumferential motion of slurry can be conveniently damaged, meanwhile, vortexes are generated behind the baffle, the mixing effect is improved, by opening the blocking plate, when the circumferential motion of the slurry passes through the blocking plate, the slurry can generate vortexes on the back face of the blocking plate, and by arranging the locking mechanism and the unlocking mechanism, the slurry can be conveniently mixed. The locking and unlocking of the barrier plate after the barrier plate is opened can be conveniently controlled, and when the barrier plate is opened, the supporting sliding rod is pulled to move through the supporting plate.
Owner:中国葛洲坝集团第三工程有限公司

Vacuum drying and decolorizing equipment for silicon resin processing

The invention relates to the technical field of silicon resin processing, in particular to vacuum drying and decolorizing equipment for silicon resin processing. The technical problems that when an existing drying and decolorizing device is used for drying and decolorizing, decolorizing is not sufficient, drying is not uniform and sufficient, and therefore the drying and decolorizing efficiency is low are solved. The vacuum drying and decoloring equipment for silicon resin processing comprises a base, an outer frame is fixedly connected to the base, and an air pump is fixedly connected to one side of the outer frame. A motor drives a stirring plate to stir silicon resin, the stirring plate drives a sliding rod to rotate while rotating, the sliding rod rotates along an annular groove of an isolating ring to enable a grinding plate to continuously grind the silicon resin, and the stirring plate reciprocates up and down to drive a piston so that a decolorizing agent can be intermittently pushed into an outer frame to be continuously mixed with the silicon resin; when the decolorizing agent is mixed with the silicon resin, pigment which cannot be removed in the silicon resin can be quickly precipitated, so that the silicon resin is more quickly and effectively decolorized, and the decolorizing efficiency of the silicon resin is improved.
Owner:JIANG XI HUAHAO CHEM ENG LIMIT CORP

Dyeing and weaving cloth wastewater transportation treatment vehicle

The invention discloses a dyeing and weaving cloth wastewater transportation treatment vehicle, which belongs to the technical field of dyeing and weaving cloth equipment, and is technically characterized by comprising a transportation vehicle, a storage box is mounted on the transportation vehicle, and a tank body is rotatably connected in the storage box; the precipitation treatment assembly is mounted on the support frame on the side surface of the storage box; the sliding assembly is slidably connected to the surface of the precipitation treatment assembly; the separation assembly is connected in the tank body in a sliding manner; and the pressing assembly is slidably connected to the supporting frame. By increasing the rotating speed of the precipitation treatment assembly, the separation assembly in the tank body can rotate under the action of the sliding assembly and the precipitation treatment assembly, so that sediments on the surface of the separation assembly can be thrown out of the tank body, and automatic collection of the sediments on the surface of the separation assembly is realized. In the process, the dyed and woven fabric wastewater can be discharged in time through the separation assembly, so that the loading capacity of the dyed and woven fabric wastewater sediment transported by the storage box is increased, the back-and-forth transportation of a transport vehicle is reduced, and the cost of an enterprise is reduced.
Owner:CHANGZHOU JIABO DYEING & WEAVING CO LTD

Chlamydomonas reinhardtii granular sludge and cultivation method and application thereof

The present application belongs to the technical field of sewage treatment, and in particular to a granular sludge of Chlamydomonas reinhardtii, a cultivation method and an application thereof; the cultivation method of the granular sludge of Chlamydomonas reinhardtii provided in the present application can cultivate the granular sludge to obtain a granular sludge with an average particle size of nearly 0.5 mm, SVI5 and SVI 30 The ratio is close to 1, and the Chlamydomonas reinhardtii granular sludge can be completely precipitated within 1 minute. The structure of the cultivated Chlamydomonas reinhardtii granular sludge is dense and rich in voids, which is conducive to the pollutants in the sewage to enter the internal reaction of the particles faster, promote the generation of high-value resources such as protein and reduce N2O emissions; on the one hand, the ability of Chlamydomonas reinhardtii to utilize resources such as nitrogen in sewage to generate high-value resources and reduce N2O emissions is improved, and on the other hand, it is convenient to collect the Chlamydomonas reinhardtii granular sludge, improves the effect of sewage treatment, and thus solves the technical problem of poor sewage treatment effect in the prior art.
Owner:SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP

Chemical wastewater environment-friendly treatment device and treatment method

The invention belongs to the technical field of wastewater treatment and particularly discloses an environment-friendly chemical wastewater treatment device and method.The environment-friendly chemical wastewater treatment device comprises a wastewater cylinder, a supporting seat is fixedly mounted on the lower side of the wastewater cylinder, a drainage pipe is fixedly arranged at the lower end of the wastewater cylinder, and a stirring assembly is arranged on the inner side of the wastewater cylinder; the upper side of the stirring assembly is provided with a filtering assembly, the upper end of the stirring assembly is provided with a second motor, the lower end of a rotating shaft of the second motor is fixedly provided with a stirring rod, the upper side of the stirring assembly and the upper side of the filtering assembly are fixedly connected with water inlet pipes, and the stirring assembly comprises an inner cylinder arranged on the inner side of the waste water cylinder; a side ring is fixedly arranged at the lower end of the inner cylinder, and filter holes are formed in the lower side of the inner cylinder. Through overall cooperative use, formed flocculates are stored on the side rings and cannot be in direct contact with the stirring rod or impact of inertia of water flow after the stirring rod stops, the formed flocculates are not prone to being affected, and precipitation is faster.
Owner:SHANDONG ZHENNUO CHEM CO LTD