107 results about "Aluminium electrolysis" patented technology

The application provides an energy-saving building material production equipment and an aluminum electrolysis overhaul slag recycling method. The application relates to the field of energy-saving building material production equipment, and the energy-saving building material production equipment comprises a base. The energy-saving building material production equipment provided by the application inputs roasting gas into a drying outer cylinder, drives a drying inner cylinder to rotate and tumble filter residue A through a drying motor, and performs drying, so that energy is effectively saved. The filter residue A after drying is input into a crushing box through a lifting conveyor belt, is crushed by crushing cutters, is sieved, is input into a mixing box through a discharge hopper, is mixed with mixed material, cement and lime to obtain the mixed material, the mixed material is pressed into no-burning bricks by pressing the mixed material into the first mold through an upper pressing die head and a lower pressing die head, meanwhile, the second mold synchronously completes filling to realize continuous production, the filter residue A is converted into the no-burning bricks, waste resource utilization is realized, and environmental pollution is reduced. The double molds work alternately, production is ensured to be uninterrupted, and overall productivity and economic benefits are improved.

The utility model relates to aluminum electrolysis technical field, especially a kind of aluminium electrolysis cell crust breaking device, including crust breaking cylinder, support and dust suction component, crust breaking cylinder is set in the outside of support, support inside is provided with driving element, driving element and crust breaking cylinder are connected, dust suction component includes dust suction element, dust suction element is detachably set in the side of support, and dust suction element includes dust suction structure, dust suction pipe and dust outlet pipe, dust suction pipe is aligned with the setting of passing through support and driving element, dust outlet pipe is set at the position of the opposite side of dust suction pipe, dust suction structure can rotate, so that the dust in the inside of support is sucked out by dust suction pipe.In the utility model, baffle can be in crust breaking cylinder work time and prevent a large amount of dust from entering the inside of support by blocking a large amount of dust, open motor so that fan blade rotates, dust accumulated in the inside of support is sucked out by dust suction pipe, avoid dust accumulation in the inside of support to further influence the normal work of driving element, greatly increase the efficiency of crust breaking.

This utility model relates to the field of aluminum electrolysis technology, and particularly to a graphitized lining structure suitable for low current density aluminum electrolysis cells. It includes a cell bottom plate, a heat insulation layer, a thermal insulation layer, a seepage-proof layer, a cathode carbon block assembly, a casting layer, and a thermal insulation and seepage-proof layer. The heat insulation layer is located above the cell bottom plate, the thermal insulation layer is located above the heat insulation layer, the seepage-proof layer is located above the thermal insulation layer, the cathode carbon block assembly is located above the seepage-proof layer, the casting layer is located outside the cathode carbon block assembly, and the thermal insulation and seepage-proof layer is located outside the casting layer. In this utility model, a partition plate, a seepage-proof material layer, seepage-proof brick I, seepage-proof brick II, and a barrier plate are provided. The seepage-proof material layer, seepage-proof brick I, seepage-proof brick II, and barrier plate are sequentially distributed on the partition plate. A seepage-proof material layer is also provided above the barrier plate. The seepage-proof material layer and the barrier plate can greatly prevent electrolyte leakage into the seepage-proof layer, and the partition plate and the seepage-proof material layer can further prevent electrolyte leakage into the thermal insulation layer.

This utility model relates to the field of aluminum electrolysis equipment technology, and in particular to a heat insulation sleeve for the cathode steel rod head of an aluminum electrolysis cell, comprising: a main support part and side support parts; the main support part is a rectangular plate structure; the side support parts are rectangular plate structures; one end of the side support part in the width direction is set on one end of the main support part in the width direction; one end of the side support part in the length direction is flush with one end of the main support part in the length direction; there are two side support parts; the two side support parts are symmetrically arranged at both ends of the main support part in the width direction; the side support parts are perpendicular to the main support part; the two side support parts and the main support part are constructed into a U-shaped groove; the length of the main support part is twice the length of the side support parts; a heat insulation layer one is provided on the inner side of the main support part; a heat insulation layer two is provided on the inner side of the side support parts. This utility model improves the convenience of installation and disassembly; facilitates testing the current distribution and temperature of the cathode steel rod; and is low in cost and simple to maintain.

This invention discloses a method for comparative measurement of voltage drop in aluminum electrolysis anode steel claws, comprising the following steps: setting test points, controlling temperature, measurement, and comparison. The beneficial effects of this invention are: after different anode steel claws operate with the same current for a period of time, the heat generated when the current passes through different anode steel claws and guide rods becomes more similar, and the temperatures of different anode steel claws become closer, effectively reducing the influence of temperature differences on resistance measurement. Compared with the results obtained at room temperature, the results are closer to actual working conditions, and accurate voltage drop comparison results can be obtained, achieving the advantage of high accuracy in steel claw voltage drop measurement.

This utility model discloses a purification device and an electrolyte preparation system for 2-methyl-adipic acid. The purification device first purifies the crude electrolyte with high viscosity through a thin-film evaporator, separates the light components, and then performs distillation. This combines the advantages of high evaporation efficiency of the thin-film evaporator with the distillation effect of the distillation column, resulting in a high-purity purified product, which promotes the industrial production of high-quality aluminum electrolytic capacitor electrolyte.

This utility model discloses an automatic dust collection device for a multi-functional overhead crane in aluminum electrolysis, including an overhead crane hopper with a feed inlet at the top and a first valve at the inlet. A bag filter is fixedly installed inside the hopper, and an exhaust fan is fixedly installed at one end. The input end of the exhaust fan is connected to a clear pipe extending into the hopper. A switching dust collection pipe and a discharge dust collection pipe are fixedly connected to the surface of the hopper. By incorporating the bag filter, exhaust fan, switching dust collection pipe, and discharge dust collection pipe, the device provides highly efficient dust collection during multi-functional overhead crane operations. This device is highly reliable, simple in structure, easy to install, and facilitates maintenance and parts replacement, improving dust collection efficiency and equipment utilization. It also saves a significant amount of electrolyte powder and alumina powder, reducing production costs.

This utility model relates to the field of aluminum electrolysis technology, and particularly to a two-level measuring auxiliary trolley for electrolytic cells. It includes measuring probes, a frame, and support frames. A positioning rod is provided in the middle of the measuring probe. The support frames are mounted on the frame, and there are at least two sets of support frames. Each support frame has several grooves, and a through hole is provided on one set of support frames located in the middle of the frame. The measuring probes are mounted on the support frames, positioned in the grooves, and the positioning rod is inserted into the through hole. In this utility model, multiple measuring probes can be placed on the support frames. With the grooves and through holes, the measuring probes are stably supported on the support frames and will not slide, reducing the collision force between the measuring probes and the support frames. Furthermore, each measuring probe is individually positioned in a groove, preventing collisions during transportation and thus avoiding affecting the quality of the measuring probes. This method ensures transportation efficiency and quality while also increasing the service life of the measuring probes.

The utility model discloses an anticorrosive aluminum electrolytic capacitor relates to capacitor field, including capacitor body and top anticorrosion structure is provided, capacitor body top is provided with end cover, and anticorrosion structure includes anticorrosion coating, and end cover seal edge crimping fills a layer of anticorrosion coating, capacitor body in -line fixed mounting has two vertical setting terminal, and the long strip cavity that is matched with terminal is seted up in the top of end cover, and the top of end cover is seted up groove, and the recessed surface mounting of groove has the layer net of smearing, and anticorrosion coating is smeared in the layer net area and covers completely, and the thickness of layer net is less than anticorrosion coating thickness, and anticorrosion coating adopts epoxy resin material, has good chemical corrosion resistance and insulation performance, can effectively prevent capacitor body and terminal from being eroded by external environment, and anticorrosion coating can provide enough protection barrier, prolongs the service life of capacitor.

The application provides a flotation upgrading method for high-ash aluminum electrolysis fine residue, and belongs to the field of solid waste resource recovery. The method comprises the following steps: ball milling the high-ash aluminum electrolysis fine residue to obtain ultra-fine particle material; slurry conditioning is performed on the ultra-fine particle material to obtain first slurry; a surfactant is added to the first slurry for pre-dispersion treatment to obtain second slurry; a composite collector and a foaming agent are added to the second slurry for roughing flotation to obtain roughing carbon slurry and roughing tailings; the roughing carbon slurry is subjected to slurry conditioning to obtain third slurry; the composite collector and the foaming agent are added to the third slurry for cleaning flotation to obtain cleaning carbon slurry and cleaning tailings; an inhibitor is added to the cleaning carbon slurry for reverse flotation to obtain low-ash fine carbon. Through the cooperation of the process steps, the fine particle mud agglomeration of the high-ash aluminum electrolysis fine residue is broken, the surface impurities are efficiently removed, and the carbon and inorganic impurities are deeply separated, so that the low-ash high-purity fine carbon is finally obtained.

The invention relates to the technical field of dangerous solid waste treatment and resource utilization, in particular to an aluminum electrolysis overhaul slag fluoride enhanced leaching and resource recycling method. Comprising the following steps: adding pretreated overhaul slag into a complexing reaction solution of boric acid containing a dispersing agent and gluconate, and pulping; sealing the system, heating, and implementing pulse type micro-negative pressure degassing operation in which vacuumizing and normal pressure recovery are alternated during constant-temperature leaching; after the reaction is finished, carrying out thermal-state solid-liquid separation and tailing washing, and merging to obtain clear filtrate; crystal seeds are added into the filtrate, an aluminum source solution is dropwise added, the pH value is increased, solid-liquid separation is performed after constant-temperature curing, and synthetic cryolite is obtained; and supplementing the pH buffer agent to the clear liquid and then circularly returning to the liquid preparation process. According to the method, fluorine and aluminum are cooperatively extracted under the weak acid condition, generation of silicic acid gel is inhibited, equipment corrosion is reduced, mass transfer in pores is enhanced in combination with micro-negative pressure operation, and low-energy-consumption recovery of fluoride salt and closed-loop circulation of a working solution are achieved through pH regulation and control.

The application discloses a kind of aluminium electrolysis tank compressed air pipeline expansion joint protective sleeve, including upper protective sleeve, lower protective sleeve, pipeline body is equipped between the upper protective sleeve and lower protective sleeve;The structure of the upper protective sleeve and lower protective sleeve is identical;The upper protective sleeve includes shell, and the shell inner cavity is equipped with the filler that is contacted with the expansion joint of pipeline body, and the both sides of the shell are equipped with connecting structure respectively, and the upper protective sleeve is connected with lower protective sleeve by connecting structure.The filler in the upper protective sleeve and lower protective sleeve of the application isolates high temperature, to avoid the expansion joint of compressed air pipeline from high temperature damage.

The utility model relates to aluminum electrolytic capacitor processing technical field, and disclose a kind of aluminum electrolytic capacitor impregnation device, using groove seat guidance cooperation drive electric cylinder is vertically lifted to the cover and is driven installation, the automatic lifting switch of lifting cover can be realized, and lifting cover is guided and supported by the guide groove seat and guide groove column being set in the impregnation box seat side portion, with greater lifting stroke and load bearing stability, sufficient operating space can be provided for material loading after opening, facilitate the improvement of device loading and unloading operation convenience, load bearing hanger and limit knob are provided in the lower part of lifting cover, stable lifting support limit can be carried out to material basket by load bearing hanger cooperation limit knob during work, the lifting drive of cooperation drive electric cylinder can replace manpower to complete the feeding below material basket and lifting discharge, save the hard lifting operation when manpower puts material, can reduce the loading and unloading operation difficulty of equipment while reducing manpower consumption.

The application provides an aluminum electrolysis waste heat recovery device, and relates to the field of waste heat recovery, and aims to solve the problem of environmental pollution caused by heat loss in air through smoke during electrolysis of aluminum. The recovery device comprises: a smoke recovery assembly installed at one end of a smoke outlet of an electrolytic cell; a heat exchange box, a side wall of the heat exchange box being provided with a smoke inlet and an exhaust port, the smoke inlet being connected with the other end of the smoke recovery assembly; a rotating shaft installed in the heat exchange box, an inner cavity being arranged in the rotating shaft; a plurality of heat radiating fins, one end of each heat radiating fin being connected with the rotating shaft, a heat exchange chamber being arranged on each heat radiating fin, and a heat exchange channel being formed between adjacent two heat radiating fins; a medium conveying assembly installed at one end of the rotating shaft and communicated with the inner cavity; a medium return assembly installed at the other end of the rotating shaft and communicated with the heat exchange chamber; and a driving assembly connected with the rotating shaft. The application collects and processes the smoke generated during electrolysis of aluminum, so that the heat in the smoke is effectively utilized, and the pollution of heat to the environment is reduced.

The utility model relates to aluminum electrolytic capacitor processing technical field, and disclose a kind of cutting equipment for aluminum electrolytic capacitor processing, two fixed frame fixed connection in the top both sides of support frame, fixed roll is installed between two fixed frame, the outside of fixed roll is provided with several cutting knives, the outside one end of fixed roll is fixedly sleeved with driven wheel, the inside of support frame is equipped with driving motor, the output shaft of driving motor is fixedly connected with driving wheel, and driving wheel and driven wheel are connected by belt between;By the aluminum foil roll is sleeved on the outside of guide rod, then bearing is sleeved on the outside of guide rod, then two round table seat is inserted into the sleeve both ends of aluminum foil roll, then by rotating fixed seat is connected on the outside of fixed ring, while fixed seat is sleeved on the outside of elastic plate, and by extruding elastic plate, it is tightly in contact on the outside of guide rod, complete the fixing of round table seat position, different width aluminum foil roll can be positioned, to complete the cutting of different width aluminum foil roll.

This invention provides a method and equipment for recovering lithium, fluorine, and aluminum from lithium-rich waste aluminum electrolyte, relating to the field of metal material recycling. The method for recovering lithium, fluorine, and aluminum from lithium-rich waste aluminum electrolyte includes the following steps: S1, the waste aluminum electrolyte is crushed, ground, sieved, and then dried for later use. The method provided by this invention utilizes ultrasonic-assisted leaching of lithium-containing waste aluminum electrolyte with organic acid (malonic acid). Compared with traditional inorganic acid leaching, organic acid has advantages such as good biodegradability, weak acidity, low corrosiveness, recyclability, and environmental friendliness. During neutralization, cryolite byproducts are obtained, which can be returned to the aluminum electrolysis cell for reuse, realizing the recycling of fluorine and aluminum. Finally, high-purity lithium phosphate is obtained through precipitation, effectively utilizing the lithium resources in the waste aluminum electrolyte.

This utility model relates to the technical field of cathode steel rod casting equipment, specifically disclosing a copper-embedded cathode steel rod casting equipment for aluminum electrolysis, including a support and a casting mechanism. Two left-right distributed fixed plates are fixedly connected to the upper end of the support. A lead screw is rotatably connected between the two fixed plates. A moving block is threaded onto the outer wall of the lead screw. A support plate is fixedly connected to the upper end of the moving block. Two support shafts are fixedly connected to the upper end of the support plate. A housing is fixedly connected to the upper end of each of the two support shafts. A limiting mechanism is provided inside the housing. The limiting mechanism includes a gear rotatably connected to the bottom surface inside the housing. Two racks distributed front and rear are meshed onto the outer wall of the gear. This dual-station limiting mechanism operates in an alternating mode, enabling parallel operation of casting and material removal, thus improving casting efficiency.

The application discloses a kind of based on process structure knowledge neural network's aluminium electrolytic cell alumina concentration distribution high-efficiency prediction method and device, using flow field pre-training module to fit the relationship between spatial position and flow rate in aluminium electrolytic cell, using concentration field pre-training module to fit the relationship between spatial position and alumina concentration in aluminium electrolytic cell;Using fusion training module and flow field pre-training module, concentration field pre-training module are combined, and additional introduction fixed time interval, by incorporating alumina distribution process control equation in loss function, fit the relationship between spatial position, initial alumina concentration and alumina concentration after fixed time interval in aluminium electrolytic cell, obtain alumina concentration distribution prediction model, for predicting alumina concentration after fixed time interval in any position in aluminium electrolytic cell.The application can significantly improve the efficiency and precision of predicting alumina concentration distribution in aluminium electrolytic cell.

The application provides an equipment and process for cooperatively disposing and recycling aluminum by using aluminum electrolysis aluminum ash and waste carbon cathode, relates to the technical field of aluminum electrolysis waste resource utilization, and comprises a mixing kettle, a kettle cover, a buoyancy driving mechanism, a pH adjusting mechanism, a self-adaptive adjusting mechanism and a supporting frame; the buoyancy driving mechanism comprises a mounting frame fixed to the top of the kettle cover, a rotating shaft is longitudinally rotationally connected in the mounting frame, and rotating gears are fixed to the circumferential surface of the rotating shaft. According to the scheme, after the mixed fluorine source is completely injected into the mixing kettle, the liquid level in the mixing kettle reaches a set value, at this time, the dropping hose is completely pressed to death through the rotation of the extrusion disc, the floating capsule and the floating rod stop moving upward, the dosing is automatically stopped, precise parking without overshoot is realized, the dosing speed is adaptively decreased along with the adjusting process, and the problems of overshoot, oscillation or local unevenness caused by manual or simple constant-speed dosing are fundamentally avoided, and the aluminum recovery rate and the purity of aluminum fluoride are greatly improved.

This utility model relates to the technical field of electrolytic cell current guiding devices, specifically an emergency current guiding device for the cathode of an aluminum electrolytic cell. It includes an aluminum flexible strip, with aluminum blocks fixedly connected to both ends. An adjustable-length support rod is connected between the two aluminum blocks via a ball-head hinge. Slots are provided on the aluminum blocks, and C-shaped plates are inserted into the inner sides of the aluminum blocks, connected to the ball-head hinge. This emergency current guiding device for the cathode of an aluminum electrolytic cell allows the two aluminum blocks to abut against the cathode steel rod and cathode busbar respectively after the cathode aluminum-steel direct weld layer cracks. This enables the cathode current to be guided through the aluminum blocks and the aluminum flexible strip, preventing the aluminum electrolytic cell from shutting down due to the cracking of the cathode aluminum-steel direct weld layer and avoiding serious economic losses.

This application discloses a phosphorus pig iron stabilizer for aluminum electrolysis. The stabilizer has a core-shell structure, comprising an improver as the core, a desulfurizing agent as the first outer shell coated on the improver, and a carbonizing agent as the second outer shell coated on the first outer shell. The improver includes one or more of ferrosilicon, calcium silicon, lanthanum oxide, cerium oxide, yttrium oxide, praseodymium oxide, and neodymium oxide. The phosphorus pig iron stabilizer disclosed in this application can effectively solve the elemental imbalance problem during the reuse of phosphorus pig iron and improve various problems caused by elemental imbalance.

The application discloses a kind of aluminium electrolysis cell real-time data anomaly detection methods based on half-space tree, it relates to electrolytic aluminium production process monitoring and anomaly detection technical field, steps are as follows: S1: collection aluminium electrolysis cell real-time data and carry out data cleaning, construct multi-time scale data window;S2: initialization feature weighted half-space tree model;S3: calculate long short-term half-space tree model's anomaly score, carry out weighted fusion;S4: according to self-adapting threshold, process rule, carry out multistage determination to anomaly score;S5: output different grades of anomaly detection result and visual view;The application can be combined with short-term and long-term scale, improve the overall nature of exception capture, feature weighting improves key feature sensitivity, reduces the risk of missed detection, self-adapting threshold dynamic adjustment, reduces false alarm, process rule fusion enhances engineering usability, supports real-time streaming processing, suitable for online monitoring system deployment.

The application discloses an ultralow-temperature aluminum electrolytic capacitor and a preparation method thereof. The capacitor comprises an anode foil, a cathode foil, an electrolytic paper between the anode foil and the cathode foil, and an electrolyte solution contained in the electrolytic paper. The electrolyte solution comprises, by weight percentage, propylene carbonate 15-25%, methyl ethyl carbonate 20-28%, diethylene glycol dimethyl ether 16-26%, lithium tetrafluoroborate 7-12%, lithium bisfluorosulfonylimide 2-5%, lithium difluorobisoxalate borate 2-5%, vinyl sulfate 4-8%, methanedisulfonate methylene 1.5-3.5%, mesoporous silicon dioxide 4-9%, lithium hexafluorophosphate 0.2-1.0%, lithium bis-trifluoromethanesulfonylimide 1.5-5%, a chelating agent 0.01-0.05%, and p-nitrophenol 0.3-1.2%. The preparation method comprises core wrapping, drying treatment, ring-type immersion, liquid removal treatment, assembly waist bundling, and aging treatment. The capacity retention rate of the capacitor can reach more than 90% at an ultralow temperature of -55 DEG C, and the Z ratio is only 1.29, so that the ultralow temperature and high temperature stability are synergistically improved.

An anti-vibration aluminum electrolytic capacitor has an outer layer of core package wrapped with anti-vibration tape. The anti-vibration tape includes a pressure-sensitive adhesive layer, a water-absorbing and swelling functional layer, and a substrate layer. The pressure-sensitive adhesive layer is disposed on the water-absorbing and swelling functional layer, which is also disposed on the substrate layer. The pressure-sensitive adhesive layer is in contact with the outermost layer of the core package. After the water-absorbing and swelling functional layer absorbs water and expands, it tightly adheres the substrate layer to the inner wall of the aluminum shell. The water-absorbing and swelling functional layer includes a water-absorbing and swelling resin, an adhesive, and additives. The water-absorbing and swelling resin includes one or more combinations of polyacrylates, polyacrylamides, and cellulose graft copolymers. After the core package of this invention is impregnated with electrolyte, the water-absorbing and swelling functional layer located in the middle layer of the anti-vibration tape absorbs water from the aqueous electrolyte and slowly expands, increasing its volume to 2 to 5 times its original thickness. This allows the substrate layer to tightly adhere to the inner wall of the aluminum shell, achieving gapless self-locking. The pressure-sensitive adhesive layer maintains good adhesion after impregnation, ensuring that the tape as a whole does not shift.

This utility model relates to the field of prebaked aluminum electrolytic cell technology, specifically a fluoride salt batching device for a prebaked aluminum electrolytic cell. It includes a mounting bracket, with a hydraulic cylinder and a storage silo mounted on top of the bracket. A drive motor, a mixing silo, a second drive motor, and a stirring rod are mounted on the outside of the mounting bracket. A third drive motor is mounted on the outside of the mixing silo, and its output is connected to a feeding rod. A discharge port is installed at the bottom of the mixing silo, and a servo motor is mounted at the top, with its output connected to a transmission rod. A weighing hopper is mounted on the transmission rod, and a weighing scale is installed at the bottom of the weighing hopper. After mixing, drive motors one and two are turned off, while drive motor three continues to operate. The mixing silo remains tilted, and the solenoid valve is opened to discharge the raw material through the discharge port. Drive motor three drives the feeding rod to rotate, preventing the raw material from clogging the discharge port, thus completing the batching process. This method ensures a fast discharge speed.

This invention relates to the field of aluminum electrolysis cell technology, specifically to an aluminum electrolysis cell overhaul slag treatment device and process. It includes a high-temperature heating base frame, with a feeding rack fixedly connected to the rear side of the top of the base frame. By using the high-temperature heating base frame and the feeding rack, this invention achieves quantitative intermittent feeding of the overhaul slag. Through the reciprocating motion of the triangular abutment block in conjunction with the expansion and contraction structure and the sealing structure, the amount of material fed in a single batch is precisely controlled, avoiding the problem of blockage at the crushing system inlet caused by simultaneous feeding of large amounts of material. This ensures smooth material transport in the crushing process, maintains stable operation of the processing flow, and the precise feeding control accurately controls the subsequent addition ratio of chemical binders and curing agents, enabling the mixed material to achieve the expected molding effect. This avoids molding quality defects caused by imbalanced proportions, providing a qualified material basis for subsequent high-temperature calcination treatment and effectively improving the processing efficiency of high-temperature calcination.

This utility model discloses a fixture for an aluminum electrolytic capacitor leakage current tester, including a test platform, an LCR tester, fixed clamps, a mounting frame, and an elastic clamp mechanism. Each of the two sets of fixed clamps has several sets of anti-slip rubber beads on their corresponding surfaces to improve the stability of capacitor clamping. The test platform surface has a control component for controlling the distance between the two sets of fixed clamps. The sides of both mounting frames have adjustment components for adjusting the height and extension distance of the elastic clamp mechanism. By controlling the distance between the two sets of fixed clamps through the control components, capacitors of different sizes can be clamped using the two sets of fixed clamps. The anti-slip rubber beads improve the stability of capacitor clamping. The adjustment components adjust the height of the elastic clamp mechanism and the distance between the two sets of elastic clamps, thus making it suitable for capacitors with different lead lengths and spacings, thereby improving the overall applicability of the tester fixture.