9results about How to "Hazard reduction" patented technology

The utility model relates to an anti-ice-falling device for the surface of a cross tie beam of a bridge tower, which comprises a plurality of anti-ice-falling devices arranged on the surface of the cross tie beam, each anti-ice-falling device comprises an anti-ice-falling clamp, a plurality of raised fixing pieces and a plurality of extended connecting pieces, and the anti-ice-falling clamps comprise a first anti-ice-falling clamp and a second anti-ice-falling clamp. The first anti-ice-falling clamp and the second anti-ice-falling clamp are fixedly arranged on the edges of the left side and the right side of the cross tie beam respectively, and the first anti-ice-falling clamp and the second anti-ice-falling clamp are connected into a whole through the extending connecting pieces and the protruding fixing pieces and fixed to the upper surface of the cross tie beam. The limiting baffles arranged at certain intervals prevent solid accumulated ice from sliding on the upper surface of the bridge tower cross tie beam, meanwhile, lateral drainage of the upper surface of the cross tie beam cannot be hindered, the phenomenon that a traditional drainage channel becomes a'water blocking channel 'due to icing is avoided, and the size of a single block of ice accumulated on the upper surface of the cross tie beam is limited within a safety threshold value as much as possible.

This application discloses a soft magnetic powder composite, a magnetic powder core material, and an insulating coating method based on organic growth, belonging to the field of soft magnetic materials technology. The soft magnetic powder composite of this application includes soft magnetic powder and an insulating coating layer, with the insulating coating layer encapsulating the soft magnetic powder. The insulating coating layer is prepared by a crosslinking reaction of dopamine hydrochloride (hereinafter referred to as dopamine) and polyethyleneimine. The soft magnetic powder is selected from metals and / or alloys containing Fe. The insulating coating method of this application has low hazard, achieves high stability within a certain temperature range, features scalable and controllable insulating film thickness, high film uniformity, and effectively isolates interparticle eddy currents. Simultaneously, the insulating coating layer has strong adhesion, reducing the amount of insulating adhesive used, facilitating molding, reducing the dilution effect of non-magnetic phases, and further improving the magnetic properties of the matrix.

This invention discloses a composite dewatering agent for sludge dewatering in wastewater treatment and its preparation method, belonging to the field of sludge treatment technology. The composite dewatering agent comprises, by weight, the following raw materials: 30-50 parts chitosan-acetylcysteine-modified coal gangue, 20-40 parts cationic starch-modified fly ash fiber, and 1-3 parts nonionic surfactant. The composite dewatering agent of this invention, comprising chitosan-acetylcysteine-modified coal gangue, cationic starch-modified fly ash fiber, and nonionic surfactant, significantly improves the sludge dewatering rate through the synergistic effect of each component, utilizing multiple mechanisms such as charge neutralization, adsorption bridging, and the release of bound water through extracellular polymer destruction. This invention fully utilizes solid waste and natural materials in the preparation of the composite dewatering agent, achieving resource utilization of solid waste while avoiding residual pollution from traditional polyacrylamide flocculants and reducing environmental hazards.

This application discloses a system and method for producing cryogenic cooling capacity based on carbon dioxide, belonging to the field of pipeline transportation technology. The system includes: a multi-stage compressor, a first heat exchanger, an absorption chiller, a regenerator, a second heat exchanger, a booster pump, and an expander. By processing the input room-temperature gaseous carbon dioxide through a series of steps, the system can output cryogenic gaseous carbon dioxide that provides cryogenic cooling capacity for the cryogenic distillation process of carbon dioxide. By using this cryogenic carbon dioxide to replace liquid ammonia as a refrigerant, not only is the problem of the difficulty in obtaining cryogenic cooling capacity in the cryogenic distillation process solved, but the hazards are also reduced, making the refrigeration process more energy-efficient and environmentally friendly.

This application provides a data processing method, apparatus, and device applied to a terminal device. The method includes: acquiring multiple upper eyelid positions and multiple eye opening areas within a preset time period; adjusting the illumination of a lighting device and / or the display of the terminal device based on the multiple upper eyelid positions and multiple eye opening areas, wherein the lighting device is used to provide ambient lighting to the terminal device. This reduces the harm of the terminal device to the user's eye health.

This application provides a method for removing aluminum from lithium iron phosphate waste through directional recycling. The method includes the following steps: (1) mixing lithium iron phosphate waste, iron salt solution, and reducing agent to form a slurry, and then reacting in one step to obtain a mixed salt solution containing aluminum ions and ferrous ions, and lithium iron phosphate after aluminum removal; (2) adjusting the pH of the mixed salt solution obtained in step (1), and then reacting in two steps to obtain aluminum hydroxide slag and a solution containing ferrous ions through solid-liquid separation; (3) mixing the ferrous ions obtained in step (2) with an oxidizing agent, adjusting the pH, and then reacting in three steps to obtain an iron salt solution, which is used for recycling the iron salt solution from step (1). The aluminum removal method described in this application does not introduce other impurities during leaching, is simple to operate, pollution-free, and the impurity removal agent can be recycled. Furthermore, the iron element can be recovered, resulting in low process cost and good impurity removal effect.

The invention relates to the field of solid waste resource utilization, in particular to a coal gangue treatment and processing technological method. The coal gangue treatment and processing technological method comprises the following steps: crushing and grinding coal gangue in sequence to obtain coal gangue powder; the coal gangue powder is subjected to first calcination, and calcined coal gangue is obtained; mixing the calcined coal gangue with a nitric acid solution, and carrying out oxidation treatment to obtain a precipitate; mixing the precipitate, a chemical activator and a solvent, carrying out heat treatment, and carrying out solid-liquid separation to obtain filter residues and filtrate; carrying out secondary calcination on the filter residue to obtain a silicon fertilizer; and adding an acidic leaching solution into the filtrate to adjust the pH value to be acidic, thereby obtaining the humic acid. According to the invention, inorganic matters in the coal gangue are prepared into the silicon fertilizer, and organic matters are prepared into the humic acid, so that combined preparation of the silicon fertilizer and the humic acid is realized, the production cost is greatly reduced, and high value-added utilization of solid wastes is realized.

The utility model relates to the technical field of batteries, and discloses a battery and a power utilization device, and the battery comprises a box body, an outer cover plate, a battery cell group, an inner cover plate and a pressure relief piece. The battery cell groups are arranged in the accommodating cavity along the second direction, each battery cell group comprises a plurality of battery cells arranged along the first direction, and each battery cell is provided with an anti-explosion valve; the inner cover plate is arranged in the accommodating cavity and is connected with one surface, facing the battery cell group, of the outer cover plate, the inner cover plate comprises a plurality of first pressure relief parts extending along the first direction, and the first pressure relief parts are arranged in the accommodating cavity along the second direction; a first pressure relief channel is arranged between each first pressure relief part and the outer cover plate, and the anti-explosion valve of each battery cell is arranged on one surface, opposite to the first pressure relief part, of the battery cell; and a plurality of first pressure relief holes sealed by pressure relief pieces are formed in the positions, opposite to the anti-explosion valve, of the first pressure relief parts. Diffusion of high-pressure gas and eruptions in the battery can be reduced, and the risk of thermal runaway propagation is reduced.

This application relates to the field of information security testing technology, and in particular to a method, apparatus, medium, and electronic device for repairing electronic devices within a target industrial control network. The method includes: acquiring vulnerabilities in the electronic device to be tested to obtain a target vulnerability set D; acquiring the attack links corresponding to each of several preset attack types to obtain an attack type set G; obtaining a critical attack type set M based on D and G; obtaining a critical attack type score set E based on M; determining the repair urgency score ED of the electronic device to be tested based on E; determining the repair urgency level of the electronic device to be tested based on ED, and repairing the electronic device to be tested. The repair urgency score obtained in this application more accurately represents the comprehensive harm of the critical attack types. Furthermore, different repair methods are set for electronic devices with different repair urgency levels. This achieves accurate assessment of the vulnerability of electronic devices.