12results about How to "Remove threat" patented technology

The invention relates to the technical field of material storage, in particular to a mining storage device which comprises a coal storage bin, an upper cover at the upper end of the coal storage bin is detachably connected, one side of the coal storage bin is sequentially provided with a feeding port and a ventilation hole from top to bottom, a square groove is formed in the inner wall of the coal storage bin, and the ventilation hole is formed in the inner wall of the coal storage bin. The gas dilution hole is formed in the bottom of the square groove in a penetrating mode and communicates with the gas conveying pipe, the elastic connecting rope is connected between the rotating plate and the valve plate, and the valve plate is arranged in the square groove in a sliding mode. When coal is stored in the coal storage bin, the rotating plate which intermittently swings drives the combustible gas protection assembly to move, carbon dioxide gas is intermittently supplemented, and combustible gas is extruded out through the carbon dioxide gas, so that the safety of the coal when the coal is stored on the inner side of the coal storage bin is remarkably improved; and threats caused by combustible gas and pulverized coal are eliminated.

The application discloses a dry-type hollow shunt reactor overvoltage protection device and belongs to the technical field of overvoltage protection of power transmission and transformation equipment. When system operation overvoltage occurs, the frequency absorption unit can reduce the oscillation frequency of overvoltage, slow down the rising front of overvoltage, solve the damage of high-frequency components to the reactor winding, and inhibit the overvoltage peak value. When the frequency absorption unit cannot inhibit the overvoltage peak value, the overvoltage absorption unit plays a role in limiting the overvoltage peak value, and the insulation level of the reactor is enhanced. Through the application of the voltage monitoring and conversion unit, when the reactor is normally operated or the overvoltage is lower than the operation threshold value, the high-speed control switch is turned on, the explosion-proof separation unit is short-circuited and bypassed, and the frequency inhibition absorption unit and the overvoltage absorption unit bear the main protection task. When the monitored voltage exceeds the set threshold value or the absorption unit fails or is subjected to thermal breakdown, the high-speed control switch is turned off, the explosion-proof separation unit is connected to the circuit, the faulty unit is timely removed, and the fault expansion is prevented.

The invention discloses a federal learning backdoor defense method based on trigger reconstruction, which can recover the accuracy of a clean sample influenced by an attack while defending the backdoor attack. Specifically, a backdoor trigger is reconstructed by utilizing training updates provided by an attacker, so that malicious data samples become easy to identify, and then the accuracy of clean samples affected by backdoor attacks is effectively recovered through a backdoor mitigation method.

This invention belongs to the field of engineered wood products manufacturing, specifically a method for preparing low-formaldehyde finger-jointed boards based on bio-based modified adhesives. The method includes preparing an adhesive composed of modified soybean protein, non-formaldehyde crosslinking agents, micro / nano cellulose, nano-silica, and epoxidized vegetable oil elastomers; pre-treating the wood and cutting the finger joints; applying a sealing liquid via atomization for end-face damping treatment; performing quantitative adhesive application and stepped butt joint molding; and employing a multi-stage hot-pressing process involving preheating penetration, high-temperature curing, and cooling and pressure holding. Through the above technical solution, this application can achieve the formation of a dense adhesive film at the finger joint interface, significantly improving bonding strength and stability while reducing formaldehyde release.

This invention relates to the field of wet lithium battery recycling technology, specifically to an ultrasonic-assisted wet stripping device for waste lithium battery black powder. The device includes a reaction vessel, a drive mechanism, and a stripping mechanism. The stripping mechanism comprises a stator unit and a rotor unit. The rotor unit includes a filter cylinder and grinding media. The bottom of the filter cylinder has a feed inlet and a spiral blade. The stator unit includes an ultrasonic component and a turbulence component. By constructing a stripping mechanism with the stator and rotor units coaxially nested, the device utilizes the microscopic cavitation effect of ultrasound and the gentle mechanical scrubbing of the grinding media to replace the harsh blade cutting. This solves the problems of insufficient microscopic adhesion and incomplete stripping caused by relying solely on mechanical cutting in existing technologies. Simultaneously, it avoids the problem of excessive pulverization of the current collector, which contaminates the black powder, thus achieving efficient and complete stripping of the black powder and lossless recovery of the current collector.

The invention discloses a mineral-based material capable of slowly releasing calcium and alkali, a preparation method of the mineral-based material and application of the mineral-based material in rice cadmium reduction, and belongs to the technical field of heavy metal polluted farmland soil remediation. The preparation method comprises the following steps: mixing metakaolin and a strong alkali solution to react I, removing supernatant after the reaction is completed, adding a calcium salt solution, oscillating to react II, and drying to obtain the mineral-based material capable of slowly releasing calcium and alkali. Calcium ions and basic ions are gradually dissolved and continuously released, the pH value and the structure of soil are improved, favorable conditions are created for plant growth, and the long-term effect of cadmium reduction is kept.

The embodiment of the invention provides a self-adaptive confrontation image defense method based on intensity perception and related equipment, and belongs to the technical field of artificial intelligence security. The method comprises the following steps: firstly, constructing a multi-level confrontation intensity evaluation index, and comprehensively quantifying the disturbance intensity of a confrontation sample from three dimensions of a pixel level, a feature level and a prediction level; an intensity perception adversarial purification network is constructed, and the network is composed of an adversarial intensity predictor and an intensity-guided adversarial purifier in a cooperative mode. The predictor perceives the confrontation intensity of the input image through a sparse self-attention mechanism and generates a dynamic weight; and according to the sensed intensity information and the dynamic weight, the purifier adaptively executes purification operation through an intensity-guided multi-scale feature fusion and feature modulation module, and a clean image is reconstructed. According to the method, the defects of the existing static purification method are overcome, and the purification strategy can be dynamically adjusted according to the attack threat degree, so that the better balance between the anti-robustness and the model standard precision is realized under the wide anti-attack condition.

The invention discloses a zero-tailing phosphate ore pretreatment process which comprises the following steps: identifying basic properties of phosphate ore, sorting phosphate ore including phosphate tailings and phosphate concentrate, and preparing a sintered wall material from the phosphate tailings; the phosphate ore is sedimentary mudstone. Based on performance identification of the phosphate ore, the phosphate ore is pretreated to sort out the phosphate tailings and the phosphate concentrate, the special rapid desliming device and the flotation reagent are designed for the phosphate ore, the sorting effect is guaranteed, the phosphate tailings are used for sintering the wall material, the phosphate ore pretreatment process and the building material production process are effectively considered, and the production efficiency is improved. The method realizes enrichment of phosphate concentrate and utilization of phosphate tailings, further realizes zero tailings, simple process, low consumption and environmental protection, eliminates potential threats to the environment and human health caused by a large amount of heavy metal elements and chemical substances contained in the phosphate tailings, and is suitable for the field of phosphate ores, especially collophanite.

The present invention relates to the field of power grid detection technology, and in particular to a microgrid island detection method and system. The method comprises the following steps: obtaining microgrid topology data; deploying distributed computing units on the microgrid topology data to generate distributed node deployment data; using sensors to collect microgrid operation data according to the distributed node deployment data to generate initial microgrid operation data; constructing multi-dimensional perturbation signals on the initial microgrid operation data to generate a multi-dimensional perturbation signal matrix; injecting micro-reactive disturbances into the initial microgrid operation data using the multi-dimensional perturbation signal matrix to generate multi-dimensional perturbation power grid change data; performing multi-directional impedance fusion on the multi-dimensional perturbation power grid change data to generate power grid fusion impedance data. The present invention improves the comprehensiveness and reliability of microgrid island detection through multi-dimensional perturbation signals and dynamic timing analysis.

The utility model relates to the technical field of curtain wall, disclose exempt from welding adapter, including adapter, gasket, first fastener, first toothed gasket, second toothed gasket and third fastener, the adapter includes first adapter section and second adapter section, both are all seted up long circle hole on, be equipped with a first through -hole and first fixed hole on gasket, the first fixed hole is suitable for the second fastener of inserting, first fastener one end is inserted in first through -hole and long circle hole in proper order, be equipped with second through -hole and at least two second fixed holes on first toothed gasket, two second fixed holes are suitable for the fourth fastener of inserting, first toothed gasket is configured to be fixed on the second adapter section surface of adapter by fourth fastener, be equipped with third through -hole on second toothed gasket, third fastener one end is inserted in third through -hole, second through -hole and long circle hole in proper order, and third fastener other end and second toothed gasket outside surface abut. The exempt from welding adapter can be adjusted flexibly.

The invention relates to the technical field of building materials, in particular to a method for improving tensile bonding strength of an extruded polystyrene board and mortar, which comprises the following steps: S1, design of a mortar formula: the mortar formula adopts a two-component mortar formula, the two-component mortar formula comprises a dry powder group and a liquid group, the dry powder group and the liquid group are mixed according to a certain proportion to form uniform slurry. According to the invention, a double-component mortar formula is adopted, all the components have a synergistic effect, so that the mortar and the XPS board are firmly bonded, the construction steps are specified in detail, clear requirements are provided for links such as base surface cleaning, mortar coating thickness control, XPS board bonding and curing maintenance, and the construction quality can be effectively ensured; the XPS plate is prevented from falling off, the heat preservation effect of an outer wall heat preservation system is guaranteed, the energy consumption cost of a building is reduced, the threat of the falling-off plate to pedestrian safety is eliminated, and remarkable economic benefits and social benefits are achieved.

The utility model discloses a kind of concrete distributing machine supporting foot support structure and supporting device, belong to building construction technical field.A kind of concrete distributing machine supporting foot support structure, it includes support frame, adjusting screw rod, support frame connecting rod, support frame includes the top plate and bottom plate of rectangle, multiple support skeletons are fixedly connected between top plate and bottom plate, cross brace is fixedly connected between support skeleton, reinforcing angle is respectively fixed in the upper portion four side positions of top plate, the bottom plate bottom four corner positions of support frame are respectively fixedly connected with a vertically arranged adjusting screw rod, adjusting screw nut is threadedly connected on adjusting screw rod, the lower portion of each adjusting screw rod is movably sleeved with a support frame connecting rod.The utility model can make that distributing machine support is completely independent of the reinforcing mesh of structure to be poured, formwork, distributing machine construction load can be directly transmitted to scaffold foundation, is no longer by reinforcing bar, formwork stress, avoid the security and quality problem brought by distributing machine load acting on reinforcing bar, formwork.