15results about How to "Magnetic" patented technology

This invention discloses a slag roller vertical mill combined with ball mill ultrafine powder milling pre-iron removal equipment in the field of slag iron removal technology, including a base for installing iron removal actuators; a screening cylinder mounted on top of the base via a mounting frame, the screening cylinder consisting of an upper arc segment and a lower rectangular segment; a feed inlet is provided in the middle of the top of the arc segment, and a first and second discharge outlets are provided on both sides of the feed inlet at the bottom of the rectangular segment, the first and second discharge outlets being used to output slag material and iron material respectively; spiral blades are coaxially arranged with the arc segment and rotatably mounted with the mounting frame via bearings; a conveying cylinder coaxially arranged with the spiral blades and sleeved inside the spiral blades; an electromagnet installed inside the conveying cylinder; and a first driving mechanism; this invention can more completely remove iron material from slag.

This invention relates to a magnetic Z-type photocatalyst and a method for the combined hydrodynamic cavitation photocatalytic degradation of antibiotics in wastewater while simultaneously generating heat. The technical solution employed is: utilizing a hydrodynamic cavitation system and employing a magnetic Z-type BiFeO... 3 / Bi 2 Fe 4 O 9 Photocatalysts synergistically degrade antibiotics in wastewater, while the hydraulic cavitation system generates significant heat during wastewater treatment, substantially increasing the water temperature. Simultaneously, Z-type BiFeO... 3 / Bi 2 Fe 4 O 9 Photocatalysts are magnetic, easy to recover, and highly active, making them better suited for degrading antibiotics in wastewater. This invention combines two advanced oxidation technologies, enabling them to efficiently and synergistically degrade organic wastewater. This results in low treatment costs, no secondary pollution, and significant resource conservation. It provides valuable evidence for the future large-scale, industrial-scale treatment of organic wastewater and heat generation using hydrocavitation combined with advanced oxidation technology.

The utility model discloses a kind of test fixture of KGD chip, including support plate, the top of support plate is fixedly installed with fixed clamping plate, the top of support plate is equipped with sliding slot, the inside sliding of sliding slot is installed with sliding block, the top of sliding block is fixedly installed with moving clamping plate, the side of moving clamping plate is fixedly installed with mounting plate, the top of mounting plate is fixedly installed with inner sleeve column one;By rotating rotating disc, the position of moving clamping plate can be flexibly adjusted, so that the clamping rubber pad of the side of moving clamping plate is contacted with the end of KGD chip away from fixed clamping plate, so as to clamp KGD chip, so as to be applicable to clamping KGD chip of different size specifications, without frequently replacing fixture or carrying out complex debugging, greatly improve the efficiency and flexibility of detection work, reduce production cost and operation difficulty and can be applicable to clamping KGD chip of different size, improve the applicability of device.

This invention belongs to the field of acyclic compound technology, specifically relating to a method for preparing tert-amyl peroxide. A tert-amyl hydrogen peroxide aqueous solution is added to a solvent and stirred to obtain a mixed solution. Under stirring conditions, p-toluenesulfonic acid and ferric phosphide are added sequentially to the mixed solution. After the addition is complete, stirring continues to produce reaction solution I. Under stirring conditions, acetic anhydride is added to reaction solution I. After the addition is complete, stirring continues to produce reaction solution II. A washing solution is added to reaction solution II, and the mixture is stirred and washed, then separated to obtain crude tert-amyl peroxide. The crude tert-amyl peroxide is washed, dried, and the solvent is removed to obtain tert-amyl peroxide. This invention avoids the problems of large amounts of hydrochloric acid produced by traditional acyl chloride methods and the corrosiveness caused by using sulfuric acid as a catalyst. Furthermore, ferric phosphide is magnetic, allowing for recycling through magnetic separation after the reaction. p-Toluenesulfonic acid can be regenerated through ion exchange resin, significantly reducing production costs.

The application provides a rotor slot wedge structure of a magnetically conductive and electrically conductive alloy material, and belongs to the technical field of double-shaft excited electric machines. The magnetically conductive and electrically conductive alloy is adopted, so that the rotor slot wedge structure has both electrical conductivity and magnetic conductivity, can guarantee the damping and oscillation suppression capability of the double-shaft excited electric machine, and can also run asynchronously at a large slip. The inertia support capability of the double-shaft excited electric machine is improved, and the frequency stability of the power system is guaranteed. Compared with a traditional slot wedge structure, a cross-shaped shallow groove is arranged on the surface of the slot wedge, so that the eddy current path can be blocked and the eddy current loss of the slot wedge can be reduced when the double-shaft excited electric machine runs asynchronously at a high slip. In addition, the shallow groove also increases the contact area between the surface of the slot wedge and the air in the air gap, and improves the heat dissipation capability. The double-ventilation groove setting of the air outlet of the slot wedge and the unequal outlet diameter setting are beneficial to balancing the air flow in each radial ventilation groove, reducing the axial thermal imbalance of the rotor winding, and reducing the insulation thermal stress.

This utility model discloses a novel ore processing equipment for mineral resource sorting, including a screening box. The screening box contains multiple screening components, and a mounting box is fixedly installed on the side wall of the screening box. A drive assembly is located inside the mounting box, and a screening frame is fixedly installed on the side wall of the screening box. This device combines core components such as a filter screen, mounting plate, spring, baffle, channel, magnetic screening component, and drive assembly to achieve efficient screening through multi-component cooperation. During operation, the drive assembly and spring work together to cause the filter screen to vibrate at high frequency, initially screening the ore material. The screened material is temporarily stored on the filter screen. A second protrusion pushes the baffle upward, opening the channel, and the material accurately falls into the screening frame. Subsequently, the magnetic screening component is activated, separating magnetic minerals from non-magnetic materials. This mode overcomes the limitations of a single screening method, improving screening adaptability and accuracy.

The application discloses a green synthesis method for preparing aromatic carboxylic acid based on a magnetic manganese-cobalt bimetallic oxide as a catalyst. 3 The application discloses a green synthesis method for preparing aromatic carboxylic acid based on a magnetic manganese-cobalt bimetallic oxide as a catalyst. 3 The application discloses a green synthesis method for preparing aromatic carboxylic acid based on a magnetic manganese-cobalt bimetallic oxide as a catalyst. The application discloses a green synthesis method for preparing aromatic carboxylic acid based on a magnetic manganese-cobalt bimetallic oxide as a catalyst.

The application provides a paint residue derived activated carbon coated cobalt nanomaterial and a preparation method and application thereof, the preparation method in the application uses solid hazardous waste paint residue as raw material, and adsorbs metal cobalt ions on the paint residue; the cobalt ion-paint residue compound is calcined and pyrolyzed, a magnetic Co-AC catalyst is obtained, and the catalyst is applied to catalytic activation of peroxymonosulfate to degrade new organic pollutants in water. The paint residue derived activated carbon coated cobalt nanomaterial in the application can be used as a green and efficient heterogeneous Fenton-like catalyst, peroxymonosulfate is activated through a non-free radical pathway, and the catalyst is easy to separate and reuse under an external magnetic field.

The application discloses a carbon-based composite material and a preparation method and application thereof. The carbon-based composite material is prepared by using biochar as a matrix, and loading manganese oxide and magnesium oxide on the surface of the biochar. The preparation method comprises the following steps: uniformly stirring and mixing dry and crushed biomass, a low-valence manganese salt solution and a permanganate solution according to a ratio of 200-500 g:1.5-2.5 mol:1-1.5 mol, washing, filtering and freeze-drying to obtain biomass loaded with manganese; and mixing and grinding the biomass loaded with manganese and inorganic magnesium salt according to a mass ratio of 1:1-1.6, and then pyrolyzing at high temperature to obtain a carbon-based composite material loaded with manganese and magnesium. The raw material is easy to obtain, and the preparation process is simple. The material has a large specific surface area and rich pore structure, can provide rich adhesion reaction sites for microorganisms and sludge, has strong oxidation performance of generating hydroxyl radicals on the surface through advanced oxidation, can improve the degradation efficiency of nitrogen and phosphorus in water in cooperation with microorganisms and / or oxidants, has good removal effect, is highly reusable, green and environment-friendly, and has high application value.

This invention discloses a method and application for preparing novel composite materials using modified red mud, belonging to the field of solid waste resource utilization technology. The technical solution of this invention is as follows: red mud is dried, ground, and calcined to obtain magnetic red mud. Sucrose and humic acid are mixed with the magnetic red mud, ultrasonically dispersed, and magnetically stirred to ensure thorough mixing. The resulting mixture is placed in a reaction vessel for hydrothermal reaction. After the reaction is complete, the solution is cooled, filtered, washed, and dried to obtain a hydrothermal carbon-humic acid red mud composite material. This invention transforms industrial solid waste red mud into an adsorbent material through a simple calcination and hydrothermal method, achieving synergistic solid-liquid treatment and providing a new approach for the resource utilization of red mud. The novel composite material prepared by this invention using red mud doped with sucrose and humic acid has better pore structure and selectivity compared to traditional adsorbents, achieving the goal of treating waste with waste.

The application discloses a temperature regulating device for low-temperature starting of a fuel cell, which is applied to the field of fuel cells.The temperature regulating device can monitor the water temperature of water entering and leaving the fuel cell and water discharged from a circulating water path in real time through the arrangement of two temperature sensors, and then the water flow can be adjusted according to the water temperature.In the case of low temperature, when the water flow rate is accelerated, the self-diameter ring is powered on, and then the end part of the water guide pipe at the water inlet of the fuel cell is self-expanded in diameter, and then a buffer deceleration layer is formed before the water enters the fuel cell.Compared with the prior art, under the condition of the same water flow rate, the fuel cell can be subjected to smaller impact force, so that the stability of the fuel cell can be greatly improved, the water inlet amount per unit time can be further improved than the prior art when starting at low temperature, the temperature regulating speed of the fuel cell is faster, the effect is better, and the influence of low temperature on the service life of the fuel cell is effectively reduced.

The application relates to a red mud-based magnetic photo-thermal catalyst and a preparation method and application thereof. The preparation method comprises the following steps: mixing red mud powder and a foaming agent solution, placing the mixture in a sealed container, heating and reacting to obtain a porous precursor; ball-milling the porous precursor and a photoactive component to obtain a photoactive component-loaded precursor; and calcining the photoactive component-loaded precursor to obtain the red mud-based magnetic photo-thermal catalyst; the photoactive component comprises any one or a combination of at least two of cerium dioxide nanoparticles, titanium dioxide nanoparticles, bismuth oxide nanoparticles, g-C3N4 or tungsten trioxide nanoparticles; and the foaming agent in the foaming agent solution comprises ammonium bicarbonate and / or urea. The application combines the resource utilization of red mud with the formic acid hydrogen storage technology, realizes the reduction, harmless and high-value utilization of red mud, provides a low-cost and green new way for the industrialization of hydrogen energy, and has important significance.

The utility model relates to a positioning tool, belongs to the technical field of stator assembly, and particularly relates to an auxiliary positioning tool for assembling magnetic steel on a disc motor stator coil, which comprises a positioning seat, a fixed side plate is fixedly mounted on the top wall surface of the positioning seat, and two positioning plates are fixedly mounted on the side wall of the fixed side plate. A mounting assembly is arranged at the top of the positioning seat; according to the utility model, the bottom end of the positioning column is attached to the inner bottom wall surface of the stator outer frame, then the output shaft of the driving motor is controlled to rotate, the moving screw moves downwards along with the rotation of the adjusting sleeve, the distance between the moving screw and the bottom end of the positioning column is shortened, and the linkage rod expands outwards; the magnetic steel on the side wall of the electromagnetic plate is attached to the inner side wall of the stator outer frame, installation of the magnetic steel is completed, and the corresponding number of magnetic steel can be installed in the stator outer frame by adjusting the number of the linkage rods. The problem that an existing magnetic steel auxiliary tool is poor in expansibility is solved.

The application discloses a kind of magnetic MCN-Au nano composite material and its preparation method and application, belong to chemical technical field.The application is based on the characteristics of magnetic nanometer material and gold nanoparticles, constructs a kind of magnetic MCN-Au nano composite material, and it is applied to Hg 2+ Colorimetric and temperature sensing detection.In the presence of H2O2, Hg 2+ Can be reduced to Hg 0 And deposited on the surface of Au NPs, show excellent peroxidase simulation activity, can efficiently catalyze H2O2 decomposition into ·OH, while TMB is oxidized into oxTMB with blue and ultraviolet absorption peak, at this time, 808nm infrared laser is used to irradiate solution, and detectable temperature signal can be generated.The application increases portable temperature detection on the basis of colorimetric, improves the accuracy and reliability of detection result, with good selectivity, high sensitivity, fast response and the like.

The utility model relates to the technical field of ultrasonic cleaning, in particular to an ultrasonic cleaning device which comprises a working table with a cleaning tank, a support arranged on the working table and located on one side of the cleaning tank, an energy gathering transducer connected to the support in a sliding mode in the vertical direction and a rotary disc rotationally connected to the bottom wall of the cleaning tank. A plurality of limiting columns are arranged on the upper end face of the rotating disc in a protruding mode and distributed around the axis of the rotating disc, a heightening pad is placed on the upper end face of the rotating disc, and the spinneret plate is placed on the upper end face of the heightening pad so that the upper end face of the spinneret plate can protrude out of the upper end faces of the limiting columns. The height increasing pad is additionally arranged, so that the upper end face of the thin spinneret plate protrudes out of the upper end face of the limiting column, the vibration head is effectively prevented from colliding with the limiting column, meanwhile, the lower end face of the vibration head can abut against the upper end face of the spinneret plate, full cleaning of the thin spinneret plate is achieved, and the cleaning effect is improved.