14results about How to "Avoid entrainment" patented technology

The application discloses a transformer for extra-high voltage direct current transmission engineering and relates to the technical field of transformers, in particular to a transformer for extra-high voltage direct current transmission engineering. The transformer comprises a transformer body, an oil tank arranged in the transformer body, a drain valve pipe communicated with the oil tank and mounted on one side of the transformer body, a main flow guide pipe connected with one end of the drain valve pipe, and a drain valve component and a sampling mechanism arranged at two ends of the main flow guide pipe. The transformer for extra-high voltage direct current transmission engineering is provided with the sampling mechanism. When sampling, the sampling pipe body is automatically moved up to the main flow guide pipe in an arc-shaped notch opened by itself and covered by a composite sealing ring under the transmission of the lifting transmission assembly, and then the clean oil sample in the main flow guide pipe enters the inside of the sampling pipe body along the cylinder wall of the sampling pipe body in a wall layer flow, so that air is avoided from being sucked by free jet flow. In the oil inlet process, the oil pressure pushes the piston rod in the buffer assembly to move down synchronously, and the gas in the sampling pipe body is discharged through the associated second electromagnetic valve pipe, so that the detection requirement of low-bubble sampling is met.

The application provides a kitchen waste sorting device, and belongs to the technical field of waste treatment. The kitchen waste sorting device comprises a material distribution mechanism, a plurality of plastic cutting members and a double-curved-surface stirrer, and a conical material distribution hopper is provided with an inlet pipe on the side. An air flotation tank is located above the conical material distribution hopper and is in communication with the top of the conical material distribution hopper. The sidewall of the air flotation tank is provided with a discharge pipe. A plastic conveying mechanism is located below the water surface of the air flotation tank at the bottom and is located obliquely above the air flotation tank at the top. A slag discharge mechanism comprises a discharge pipe and a screw conveyor. The integrated kitchen waste sorting device can realize efficient sorting of plastic, waste oil, food residue and waste water. The waste oil and food residue can be recycled, which is conducive to the recycling of kitchen waste and the subsequent solid waste and waste water treatment.

This invention relates to the field of hydraulic pump testing and provides a testing platform for hydraulic pump production. The platform includes a testing bench body with multiple equidistantly arranged filter and defoaming components arranged in a built-in oil tank. Each filter and defoaming component includes a tube, with cylinders connected to both sides of the tube via lugs. Inside the tube, from top to bottom, are sequentially arranged a filter chamber and a defoaming chamber. A filter element is positioned at the center of each filter chamber. A guide tube is positioned between the outer periphery of the filter element and the inner wall of the tube. A power transmission mechanism is positioned below the guide tube to drive the guide tube to raise and lower, adjusting the filtration flow area of ​​the filter element. This allows the platform to meet the differentiated needs of high-precision filtration for small-flow pumps and stable operation with low pressure drop for large-flow pumps, effectively enhancing the platform's adaptability to various working conditions of different flow rates and models of hydraulic pumps, and greatly improving the platform's versatility and practicality.

The utility model relates to the technical field of chemical separation, in particular to a liquid-liquid extraction tower for separating acetic acid from water, which comprises an extraction tower, an extraction agent feed port arranged at the bottom end of the extraction tower, a raw material feed port arranged at the top end of the extraction tower, an extraction phase discharge chute arranged at the top end of the extraction tower and an extraction phase discharge port arranged at the top end of the extraction tower. An upper U-shaped bent pipe is mounted on a discharge port of the extraction box, an extracted mixture forms an extraction phase at the top of the tower, and the extraction phase is collected through the extraction phase discharge groove and discharged through the extraction phase discharge port. And an upper U-shaped bent pipe is mounted on the extraction phase discharge port, so that the waste water is prevented from being carried to the extraction phase discharge port, the unextracted residual solution is prevented from being formed at the bottom of the tower, and the residual solution is collected through the raffinate phase discharge groove and then discharged through the raffinate phase discharge port. And a lower U-shaped bent pipe is arranged on the raffinate phase discharge hole, so that the extracting agent is prevented from overflowing from the tower kettle.

This invention discloses a method for extracting high-purity ammonium tetramolybdate from a waste oil hydrogenation catalyst. S1, Primary ammonia dissolution: 28% ammonia water, water, and molybdenum acid extracted from the waste oil hydrogenation catalyst are added to a primary dissolution vessel. The mixture is stirred until the molybdenum acid is fully dissolved. The reaction time is controlled to 1 hour. The pH of the dissolved solution is 7-8. The molybdenum acid has a water content of 35% and a Mo content of 46-50%. This invention employs a stepwise deep impurity removal process of "magnesium chloride for phosphorus removal + 231 resin for vanadium removal," and sets up dual phosphorus and vanadium content detection to ensure that phosphorus <0.01g / L and vanadium <0.01g / L before proceeding to subsequent processes. The molybdenum-vanadium separation coefficient of 231 resin is much higher than that of ordinary resin, effectively avoiding impurity entrainment.

The present application belongs to the field of metallurgy, and discloses a method for removing arsenic, antimony and bismuth from crude copper, comprising the following steps: S1. Melting crude copper raw material to obtain molten copper liquid, and controlling the temperature of the molten copper liquid to be 1150-1250 DEG C; S2. Adding a slagging agent to the molten copper liquid, and introducing oxygen-containing gas to remove impurities from the molten copper liquid; first, maintaining the oxygen volume concentration at 0.1%-0.5%, adding a part of the slagging agent to react; then, increasing the oxygen volume concentration to 1.5%-3.0%, and adding the remaining slagging agent to react; wherein the slagging agent comprises an alkaline carbonate, an oxidizing agent and a crystal nucleus inducer; the oxidizing agent is sodium nitrate or / and potassium nitrate; S3. Allowing the molten copper liquid to be separated from the slag phase, and removing the slag to obtain refined copper liquid. The method can deeply remove arsenic, antimony and bismuth, and can reduce the amount of slag, and the slag system has good fluidity and is easy to separate, so that the copper purity is improved while the recovery rate is ensured.

The utility model discloses a kind of aluminium electrolysis cell molten aluminium stabilizing flow devices, comprising: anti-settling equipment shell, its side surface is fixedly provided with control cabinet;Mounting shell, it is fixedly connected in anti-settling equipment shell side;Driving motor, it is installed in mounting shell;Rotary shaft, it is driving motor output shaft transmission connection, its end away from driving motor is rotatably installed in the fixed sleeve on the inner wall of anti-settling equipment shell;Mixed support, it is installed on rotary shaft, and can rotate synchronously with rotary shaft;Filter screen body, it is installed in the inside of anti-settling equipment shell;Fixed support ring, it is installed on rotary shaft;Cleaning support, it is fixedly installed on fixed support ring, can move or rotate synchronously with fixed support ring;Wherein, when driving motor drives rotary shaft rotation, mixed support can stir molten aluminium, cleaning support can clean filter screen body.The utility model can change the pressure of cleaning support to filter screen by adjusting the position of fixed support ring, enhance the effect of cleaning residue.

The utility model belongs to tertiary amine production device technical field, concretely relates to a tertiary amine amination liquid sedimentation separation device. The tertiary amine amination liquid sedimentation separation device, including pre -separating ware, sedimentation kettle, pre -separating ware is connected with the pipeline of sedimentation kettle, and pre -separating ware is provided with the pipeline of connecting with condenser, and condenser is connected with amination reaction kettle. The top of sedimentation kettle is provided with the gas inlet and nitrogen pipeline connection, and the top is also connected with the former filter jar through the liquid transfer pipe. The bottom of sedimentation kettle is provided with the discharge pipeline and the connection of the latter filter jar. The tertiary amine amination liquid sedimentation separation device provided by the utility model is through pre -separation, centrifugal sedimentation, sedimentation separation and multistage filtration, and is matched with U -shaped pipe and liquid inlet groove, avoids the interference of clear liquid main sedimentation, effectively solves the problem that the catalyst is not completely settled and the sedimentation efficiency is low in traditional technology. The liquid is taken by the inner extension pipe, and the reflux treatment improves the clear liquid recovery efficiency and guarantees the product quality.

The invention discloses an oil-immersed transformer iron core assembling device, and relates to the technical field of transformer production equipment.The oil-immersed transformer iron core assembling device comprises a workbench and a mechanical arm arranged on one side of the workbench, the output end of the mechanical arm is fixedly connected with an iron core in an adsorption mode through an adsorption assistor, and the adsorption assistor comprises a first suspension seat and a rotating block; and an adjusting auxiliary assembly is arranged between the first suspension seat and the rotating block. Through mutual cooperation of the adsorption assistor and the adjusting auxiliary assembly, the tilting structure that the two ends of the iron core are in a slight tilting state when the iron core is taken can effectively damage the attaching face between the iron core and a lower-layer stacking body, the friction force of the contact face is reduced, the upper-layer iron core can be easily stripped from the stacking body through a mechanical arm, and the efficiency is improved. The problems that in a traditional material taking mode, a lower-layer iron core is prone to being entrained, and separation is difficult are thoroughly solved, it is ensured that only a single-sheet-layer iron core is obtained in each time of material taking, a foundation is laid for follow-up assembly accuracy, and then the overall practicability of the device is improved.

This application relates to the field of phosphoric acid preparation technology, and more particularly to a method for preparing industrial-grade phosphoric acid based on hydrochloric acid decomposition of phosphate rock. The method includes: pulping phosphate rock to obtain a phosphate rock slurry; acidifying the phosphate rock slurry with hydrochloric acid to obtain an acid-hydrolyzed slurry; filtering the acid-hydrolyzed slurry to obtain an intermediate filter material; extracting the intermediate filter material using a composite extractant to obtain calcium chloride product and a supported organic phase; and reverse-extracting the supported organic phase with water to obtain dicalcium phosphate product and industrial-grade phosphoric acid. The extraction is performed in a rotary microchannel device. The composite extractant comprises a mixed organic phase of trioctylamine, tributyl phosphate, and triethylamine in decreasing mass concentrations. This method, through the synergistic effect of multi-stage gradient impurity removal throughout the entire process and deep purification by a core innovative unit, improves the purity and yield of phosphoric acid produced by wet acid hydrolysis from three dimensions: pre-removal of impurities at the source, selective separation of core soluble impurities, and precise interception of trace impurities at the terminal stage, while achieving full recovery of phosphate rock.

The present application relates to the technical field of aluminum alloy material automobile parts processing, and particularly relates to a die casting method for lightweight high-toughness automobile aluminum castings, comprising the following steps: a, aluminum alloy melting; b, mold preparation; c, die casting forming; d, cooling and solidification; e, air cooling; and f, edge cutting. The air cooling step of the existing die casting forming process of automobile aluminum castings is improved. When the aluminum castings are air cooled, the outer side wall of the aluminum castings is air cooled by straight airflow, and the inner side wall of the aluminum castings is air cooled by circulating airflow formed by airflow guidance. The inner and outer side walls of the aluminum castings are synchronously cooled by the circulating airflow, which can well reduce energy consumption and improve the structural integrity, mechanical properties and subsequent processing adaptability of the aluminum castings.

This invention relates to the field of wastewater treatment technology, specifically to a device for the resource recovery treatment of wastewater from capacitor electrolyte production. The device includes a closed evaporation cylinder and a main drive shaft located at the center of the closed evaporation cylinder. It also includes a centrifugal evaporation unit disposed within the closed evaporation cylinder, comprising several conical evaporation discs surrounding the main drive shaft. The centrifugal evaporation unit is used to spread the wastewater into a film through centrifugal force generated by high-speed rotation. A feeding and distributing mechanism is located outside the conical evaporation discs. This invention uses a centrifugal distributor to evenly distribute wastewater onto the surface of the high-speed rotating conical evaporation discs. Centrifugal force causes it to spread into an extremely thin liquid film, significantly increasing the evaporation area and inhibiting coking. The evaporation discs, made of magnetically conductive material, rotate and cut magnetic lines of force, generating internal eddy currents that self-heat the liquid film through non-contact induction heating, achieving continuous evaporation and separation, which is beneficial for improving wastewater treatment efficiency and resource recovery efficiency.

The present application relates to the technical field of potassium iodide, and provides a purification method of potassium iodide containing perfluorinated organic impurities, wherein the impurities in the potassium iodide crude product are perfluorinated organic compounds with the number of C atoms being greater than or equal to 6 and the mass content being greater than or equal to 20%, and the purification method comprises: adding the potassium iodide crude product into an alcohol lye to perform heating reflux to degrade the perfluorinated organic compounds; the alcohol lye is obtained by dissolving an alkaline compound containing an alkali metal or an alkaline earth metal in alcohol, and the mass concentration of the alkaline compound in the alcohol lye is less than or equal to 20%. The method of the present application is not only simple in operation and suitable for industrialization, but also can make the purity of the purified potassium iodide reach more than 98%, and the highest recovery rate can reach 97%, and the whole process does not produce three wastes, has low energy consumption and small risk, which is specifically reflected in that the amount of foam entraining particles during boiling is reduced, the risk of equipment and pipeline blockage is greatly reduced, the safety is high, and the presence of the alkali greatly increases the solubility of the perfluorinated organic impurities, and the purification efficiency is high.

The application relates to the technical field of composite product manufacturing, in particular to a honeycomb pouring and sealing system and a pouring and sealing method, the honeycomb pouring and sealing system comprises a mold, a honeycomb, a flow guide transmission mechanism and a stop block, a vacuum bag is arranged above the honeycomb, a sealing rubber strip connected with the vacuum bag is arranged outside the stop block and surrounds the honeycomb, joints for connecting a vacuum pump or a glue injection mechanism are arranged at intervals in a pouring and sealing area on the honeycomb, the flow guide transmission mechanism comprises a bottom peelable cloth arranged below the honeycomb and a bottom air guide grid plate arranged below the bottom peelable cloth, the flow guide transmission mechanism further comprises a top peelable cloth arranged above the honeycomb and a top flexible flow guide net arranged above the top peelable cloth, and the application also discloses a pouring and sealing method using the system, the application realizes precise coupling of component size and process parameters, ensures the improvement of pouring and sealing quality and efficiency, and needs strict monitoring of parameter execution in actual application, and the parameters are fine-tuned and optimized according to the structural characteristics of the honeycomb.