23 results about "Dry grinding" patented technology

The application provides a composite polysulfide electrolyte film, a preparation method thereof and a solid-state battery, and the preparation method comprises the following steps: mixing a sulfide electrolyte material and a polymer precursor material to perform dry grinding, so as to obtain a sulfide-polymer composite precursor powder; mixing and stirring the sulfide-polymer composite precursor powder and an aprotic organic solvent to obtain a composite polysulfide electrolyte solution; and after film formation of the composite polysulfide electrolyte solution, drying is performed to obtain the composite polysulfide electrolyte film. In the application, the sulfide electrolyte material is introduced into the polymer electrolyte, the two are combined to realize complementary advantages, high conductivity, good interface stability and excellent processing performance are considered, and the long cycle stability of the full solid-state battery can be obviously improved.

The application discloses an agglomerated diamond accumulation composite material, a diamond accumulation sand disc and a preparation method thereof, and relates to the technical field of precision grinding and surface treatment of superhard materials. The application performs surface modification on the diamond by using a silane coupling agent, and combines the diamond with a resin bonding agent, and adds inorganic oxides such as zirconium oxide, aluminum oxide and silicon carbide, so that a high-strength diamond composite material is prepared through high-temperature sintering, the compression strength of the composite particles and the interface bonding density are significantly improved, the composite particles are closely arranged and the structure is stable during dry grinding and wet grinding, the self-sharpening property is strong, the composite particles are resistant to high temperature and do not creep, the interface of the abrasive tool substrate is treated by using the silane coupling agent, the high-strength bonding force between the resin bonding agent, the composite particles and the substrate is effectively enhanced, the finished diamond coated abrasive tool is free of flying pieces, flying filaments, particle dropping, delamination under the condition of high-speed rotation, and the comprehensive performance of the product is significantly better than that of the products on the market.

The application discloses a food processing cup, a food processing cup assembly and a food processor. The cup wall of the food processing cup comprises a lower cup wall and an upper cup wall; the upper cup wall extends upward from the lower cup wall; in a direction perpendicular to the center line of the food processing cup, the distance between the outer surface and the inner surface of the lower cup wall is a first distance; the distance between the outer surface and the inner surface of the upper cup wall is a second distance; at least the second distance among the first distance and the second distance decreases in the upward direction. Therefore, among the lower cup wall and the upper cup wall, at least the lower end of the upper cup wall is thicker (i.e. thicker from top to bottom), the strength is increased, it is not easy to break, and after being assembled with a disc body and / or a cup seat, it is more stable, and can be used for whipping hard food materials, for example, the food processing cup can be used as a dry grinding cup.

The application discloses a self-suction pump, and relates to the technical field of pumps, which comprises a pump body, a pump body inlet, a pump body outlet, a pump cover, an impeller, a control assembly, a first pipeline assembly, a second pipeline assembly, a plugging assembly and a mechanical seal, wherein the pump body is provided with the pump body inlet on one side, the pump cover is arranged on the other side, the pump body is provided with the pump body outlet at the top end, a flow pipeline is arranged in the pump body, one end of the flow pipeline is communicated with the pump body inlet, the other end of the flow pipeline is connected with the pump cover, an impeller is rotatably arranged in the flow pipeline close to the pump cover, and the mechanical seal is arranged in the pump cover and located at the position of the impeller; the control assembly is arranged in the pump body inlet, the first pipeline assembly and the second pipeline assembly are respectively arranged on the pump body and the pump cover, and the plugging assembly is arranged in the pump body; and the sealing cavity is formed between the pump cover, the impeller and the mechanical seal. The application can form medium circulation and provide continuous self-lubrication for the mechanical seal to avoid dry grinding.

The application discloses a kind of electric submersible screw pump dry grinding and air lock regulation and control method, equipment and medium, it is related to mining equipment fault regulation and control field.The method comprises: obtaining motor winding temperature data, pump inlet pressure data and unit vibration data in the operation process of electric submersible screw pump;According to motor winding temperature data and pump inlet pressure data respectively, extract temperature change rate and pressure fluctuation amplitude, and according to unit vibration data, extract the energy value of preset frequency band in vibration spectrum;Temperature change rate, pressure fluctuation amplitude and the energy value of preset frequency band are input into the risk identification model constructed in advance, and the risk type is output;When the output risk type is dry grinding risk or air lock risk, adaptive control sequence is carried out.The application realizes the multi-parameter fusion identification of dry grinding risk and air lock risk by the above method, can accurately distinguish the early signs of two fault modes, avoids the misjudgment and missed judgment caused by single parameter monitoring.

This invention provides a method for preparing an air-blocking agent for tire airtight layers, belonging to the field of fine chemical technology. The method includes: Step 1: Raw ore pretreatment, using water washing to remove clay impurities adhering to the ore surface and manually removing associated minerals; Step 2: Coarse crushing, using coarse crushing equipment to crush the raw ore to 80-200 mesh; Step 3: Magnetic separation, using a magnetic separator to remove particles with high iron content from the coarsely crushed raw ore; Step 4: Integrated ultrafine grinding and modification, using a dry grinding process in a pneumatic kinetic energy mill at a temperature of 180-230℃, with the aid of additives, to crush the coarsely crushed raw ore using self-impact and self-friction methods; Step 5: Post-treatment, thoroughly mixing the ultrafine-ground and modified raw ore at a preset temperature and time. This invention effectively improves the grinding precision of black talc powder, enhances its dispersibility and rubber matrix affinity, and effectively removes associated minerals and heavy metal impurities.

The utility model relates to mechanical seal technical field, propose a kind of anti dry grinding mechanical seal device, including pump shaft and sealing gland, pump shaft rotation is arranged in sealing gland, protruding portion is provided in sealing gland, still include rotating ring, stationary ring and abutment ring, rotating ring is fixed on pump shaft by fixed part, stationary ring is movably arranged in sealing gland by moving mechanism, annular slide groove is opened in stationary ring, abutment ring is slidably matched with the inner wall of annular slide groove by elastic connecting piece, for cooperating moving mechanism and stationary ring adjustment and rotating ring distance, temperature sensor is installed in one end of abutment ring, temperature sensor and motor electrically connected, moving seat is arranged in one end of stationary ring, the width of stationary ring is greater than the length of moving groove. By the above technical scheme, for solving the dry grinding of water pump in the prior art when idling after medium (water) depletion, the problem of the friction surface temperature of rotating ring and stationary ring sharply rising, wear aggravation.

The use of a grinding additive during the dry grinding of steel making slag, characterized in that the grinding additive is selected from the group consisting of alkanolamines, glycols, glycerol, sugars, sugar acids, carboxylic acids or their salts, superplasticizers, superabsorbent polymers, or mixtures thereof. Also, ground steelmaking slag including the additives and the use of the ground steel making slag in construction materials.

The application discloses a method for enriching lithium, which comprises the following steps: S1, after dry grinding of lithium ore, fine powder with a particle size of not more than 20 mm is obtained; S2, the fine powder is scrubbed and classified to obtain scrubbed concentrate; in step S2, the particle size of the scrubbed concentrate obtained through classification is not more than 0.15 mm; and the lithium ore comprises lithium clay ore. The method for enriching lithium can realize enrichment of lithium-containing minerals and effective removal of impurity minerals, provide more high-quality raw materials for a downstream section, reduce energy consumption, and save production cost.

The application provides an electric pre-plastic reduction machine with a self-circulation oil circuit, which comprises a mounting block, a motor mounted on one side of the mounting block, a shell mounted on the other side of the mounting block, a first fixing block mounted on one side of the shell, a second fixing block mounted on one side of the first fixing block, and a mounting flange mounted on one side of the second fixing block; a filtering assembly arranged in the shell, the filtering assembly comprising a storage groove, a limiting plate and a filter screen; a circulating assembly arranged between the first fixing block and the second fixing block, the circulating assembly comprising a gear cavity, a driving gear, a driven gear and an oil pumping pipe; and a cooling assembly arranged on the top of the shell, the cooling assembly comprising a cooling box and a cooling pipe. The electric pre-plastic reduction machine filters oil through the filtering assembly, prolongs the oil change period, directly drives the gear pump through the output shaft in the circulating assembly, does not need an additional oil pump motor, keeps the pipeline full of oil, eliminates dry grinding during starting, and reduces the temperature of the oil through the cooling assembly.

This invention provides a process for recovering iron, nickel, and chromium from stainless steel smelting slag. It combines dry grinding and dry separation with wet grinding and wet separation, and integrates magnetic separation with gravity separation. This process can effectively recover mixed slag from 300-series and 400-series stainless steel smelting. The recovered products include not only large, medium, and small slag steel particles in metallic form, but also nickel-chromium-iron concentrate in the form of metal oxides. The total recovered product content reaches over 6%, and the total iron, nickel, and chromium content in the recovered slag steel is greater than 80%, ensuring thorough recovery. Furthermore, the recovered tailings have a fine particle size and are free of metallic substances, making them a relatively good raw material for building materials. Compared to traditional processes, this invention offers significantly greater economic benefits and solves the environmental problems caused by long-term stockpiling of stainless steel slag.

This invention discloses a horizontal ball milling device for dry ball milling of powders, relating to the technical field of horizontal ball milling equipment. It includes a frame, a ball milling jar, a ball milling auxiliary frame, grinding chambers, and an annular isolation plate. In this invention, the frame provides horizontal support for the ball milling jar, which performs dry ball milling on the powder to be milled. The ball milling auxiliary frame inside the ball milling jar provides auxiliary dispersion of the milled product. Multiple grinding chambers are arranged inside the ball milling jar. This segmented design innovatively divides the long cylinder into several short grinding chambers, resulting in more intense and concentrated movement of the grinding balls within each chamber. This structure restricts the long-distance axial sliding of the grinding balls, allowing more of their kinetic energy to be converted into impact and shearing action on the material, rather than useless frictional heat. This helps control the temperature during dry grinding, preventing the powder to be milled from undergoing phase change or agglomeration due to overheating.

The application provides a strong magnetic ore or reduced product dry grinding and dry separation device and method, and belongs to the technical field of mineral processing. The device comprises horizontal cylinder bodies with different diameters at two ends, transmission devices and supporting devices outside the cylinder bodies, a concentrate discharge port opened on the small-diameter side of the cylinder body, an alternating magnetic system below the transport belt of the concentrate discharge port and below the grinding and separating cylinder body, inlayed lining plates on the inner wall of the grinding and separating cylinder body, rod-shaped grinding media with different diameters at two ends in the grinding and separating cylinder body, a feed chute inside the small-diameter side of the cylinder body, and a sieve plate inside the large-diameter side of the cylinder body. The grinding and separating cylinder body, the lining plates, the rod-shaped grinding media and the sieve plate are all non-magnetic materials. The material enters the inside of the cylinder body through the feed chute, is dry ground and is also subjected to grinding and separation under the action of the magnetic field. The device realizes the dry grinding and dry separation of the fine-grained strong magnetic ore or reduced product at the same time, and can discharge the concentrate in time, and solves the problems of low concentrate grade or recovery rate caused by the non-disintegration of monomers, over-grinding, magnetic agglomeration and the like in the grinding and magnetic separation process.

This utility model relates to the field of millstone disassembly technology, specifically to a dry grinding machine with a millstone disassembly device. It includes a dry grinding machine body, inside which a millstone assembly is installed. A sealing plate is installed on the millstone assembly. The millstone assembly includes a millstone base, with an annular placement groove on the upper side wall of the millstone base. The millstone is placed in the placement groove, and a millstone pressing block is arranged in the inner ring of the millstone. Several disassembly components are arranged on the lower side of the millstone pressing block, arranged in a circular array around the central axis of the millstone pressing block. This utility model achieves separation of the millstone and its base by setting a lower pressing surface on the millstone and placing disassembly components between the lower pressing surface and the side wall of the millstone base. By rotating a bolt, the bolt pushes the disassembly components to press against the lower pressing surface, causing the millstone to move upward and separate from the millstone base. Workers can then use a crane to lift the millstone for replacement, thereby reducing the difficulty of millstone replacement and speeding up the replacement process.

This utility model relates to the field of alumina ceramic powder production technology and discloses a dry grinding equipment for alumina ceramic powder, including a machine body. The machine body includes a feed cylinder, a grinding barrel, and a discharge cylinder connected in sequence. The grinding barrel is rotatably connected to the feed cylinder and the discharge cylinder, and a drive motor on the base can drive it to rotate. The inner wall of the grinding barrel is provided with a grinding head plate, including an inner plate and an outer plate of the grinding head that fit together, with a material storage channel between them. The outer plate of the grinding head is provided with multiple annularly distributed feed grooves, and the bottom of the inner plate and the bottom of the grinding barrel are provided with discharge ports, which are connected to the discharge ports by the material storage channel. A sleeve is correspondingly fitted on the outside of the grinding barrel, and a sleeve discharge port is provided at the bottom. The sleeve discharge port of this utility model can discharge qualified materials in advance, and the annular structure of the material storage channel guides the material to collect and discharge efficiently, reducing ineffective grinding time. The sleeve is precisely fitted at the key discharge port position, which not only ensures the stability of material discharge but also indirectly reduces frictional wear between components.

This utility model discloses a portable bolt processing platform, including a base, a frame mounted on one side of the upper part of the base, a CNC moving platform mounted on the front side of the frame, water tanks mounted on the lower sides of the back of the frame, the water tanks being located at the two edges of the base surface, a worktable mounted on one side of the base surface, the worktable being directly below the CNC moving platform, and a water trough mounted directly below the worktable, the water trough being formed on one side of the base surface, and an internal plate installed inside the water trough. This portable bolt processing platform has its own grinding and cooling structure, which can effectively improve processing quality and tool life. The design of the water spray head allows for angle adjustment according to user needs. During grinding and water spraying, the friction coefficient between the tool and the workpiece is reduced, thereby avoiding damage from dry grinding and improving processing quality and tool utilization efficiency.

The application discloses a superfine bamboo fiber powder grinding process and belongs to the technical field of bamboo-based new material processing. The process comprises four steps of dry rough grinding, microbial fermentation pretreatment, emulsification wet grinding nanocrystallization and drying post-treatment. The lignin is selectively degraded by white rot fungus complex flora, so that the porosity of bamboo powder is increased by more than 50%. In combination with mineral auxiliary emulsification wet multi-stage series grinding and real-time laser particle size feedback control, superfine bamboo fiber powder with D90 less than or equal to 800nm is prepared. The process is green and environmentally friendly, and the cost is reduced by 30%-50% compared with traditional dry grinding.

This invention provides a target material for a dielectric layer of blue light storage and its preparation method. The preparation method includes: weighing In2O3 and ZrO2 according to a preset stoichiometric ratio and dry grinding them in a ball mill for 4-8 hours; then adding SiO2, binder, dispersant, defoamer, and deionized water; ball milling to form a homogenate; centrifuging to remove bubbles; and spray granulation to obtain a high-flowability powder material; loading the high-flowability powder material into a mold; cold isostatic pressing; then transferring it to a degreasing furnace for low-temperature degreasing; then transferring it to an oxygen-containing atmosphere for sintering; after furnace shutdown and cooling, demolding and machining are performed to obtain the target material for a dielectric layer of blue light storage. This invention, through a combination of dry grinding and wet grinding slurry preparation processes, combined with secondary particle size shaping technology, significantly improves the uniformity of the mixing of In2O3, ZrO2, and SiO2 powders. Combined with subsequent cold isostatic pressing, low-temperature degreasing, and atmosphere sintering processes, it ensures a consistent internal component distribution of the target material, solving the problems of low density and uneven composition in traditional preparation methods.

The utility model relates to mechanical seal technical field, and disclose the mechanical seal device for resisting dry grinding's slurry pump, including static ring and dynamic ring, dynamic ring rotatory installation is in static ring surface, and static ring can be connected with slurry pump pump shell fixedly, still include first sealing ring, second sealing ring and expansion assembly, first sealing ring and second sealing ring are all elastic members, first sealing ring installs in static ring, second sealing ring installs in dynamic ring, and second sealing ring and static ring end face are close, expansion assembly and first sealing ring and second sealing ring contact, and through expansion assembly extrusion first sealing ring and second sealing ring elastic deformation. The utility model, whole mechanical seal mainly relies on expansion assembly to first sealing ring and second sealing ring and extrudes, makes its elastic deformation, relatively, pressure is more stable, can effectively avoid the sealing performance deterioration caused by spring elastic deformation, and the sealing effect is better.

The application relates to the field of metal-based core-shell composite materials, and particularly discloses a FeCo@BN core-shell structure composite material and a preparation method thereof. The FeCo alloy powder in a sheet shape is taken as a core, and BN ceramic powder is coated on the outer surface to form a core-shell structure; the optimal particle size of BN is 500 nm, the particle size has dispersibility and adhesion, can solve the problems of easy agglomeration of 100 nm BN and poor adhesion of 1 mu m BN, and can further form a dense coating layer; a combination process of dry grinding and wet grinding is designed in the process, the dry grinding ensures complete alloying of Fe and Co, the wet grinding precisely controls the sheet shape of FeCo, mechanical embedding and chemical combination of BN and FeCo are realized through plasma-assisted ball milling, the firmness of the coating layer is improved, the heat treatment temperature is optimized, the interface gap filling and FeCo oxidation control are balanced, and the performance of the composite material is maximized through the linkage of the four processes.

The utility model relates to a detection device for diesel engine counterweight adjustment belongs to the technical field of crankshaft counterweight detection, the detection device for diesel engine counterweight adjustment, include: set up in the clamping plate of dynamic balance testing machine detection platform, the recess is established in the top of clamping plate, auxiliary assembly, auxiliary assembly sets up in the recess of clamping plate, wherein, clamping assembly includes setting up in the fin of clamping plate, the one side of fin is provided with guide plate, through setting up the fin of auxiliary assembly, can when the high -speed rotation of crankshaft, the heat of lubricating oil inside auxiliary shell is continuously discharged outward, to the heat of lubricating oil and outside each other exchange, reach the heat dissipation of lubricating oil, prevent the problem of high temperature and cause lubricating oil carbonization to occur, through setting up guide plate, and the guide plate is cotton board, can when the auxiliary shell cooperation heat insulating ring holds the limit of crankshaft neck, continuously supplies the oil for the crankshaft neck to keep lubrication, prevents the dry grinding phenomenon.

The application provides a method for preparing high-purity gypsum from phosphogypsum. The method comprises the following steps: dry grinding the phosphogypsum to control the particle size within a certain range; adding the dry-ground phosphogypsum into acid liquor, acid leaching, and filtering; adding water to the filtered phosphogypsum to form a slurry, adding an amine collector to perform positive flotation until the foam is white, and obtaining the product, i.e. the desilicated and purified phosphogypsum; and calcining the desilicated and purified phosphogypsum to obtain gypsum. The method creates necessary acidic conditions for the desilication and purification of the phosphogypsum by acid leaching, and reduces the use of pH adjusting reagents. Compared with the traditional oil acid collector, the amine collector can precisely collect the positively charged gypsum under the condition that the quartz is not charged under the acidic condition, and the amount of the amine collector is small. Compared with the wet purification method, the fire purification method can make the whiteness of the phosphogypsum break through 70% and reach more than 90%.