39results about How to "Full and effective contact" patented technology

The invention belongs to the technical field of batteries, and specifically discloses a preparation method of a lithium manganese phosphate / carbon composite material with a nano-micro hierarchical structure, which will contain a manganese source, a lithium source, a phosphorus source, hexamethylenetetramine, ethylene glycol The raw material solution is heat-treated at 70°C to 80°C in advance, and then solvothermally obtained at 160°C to 200°C. The prepared lithium manganese phosphate material with nano-micro hierarchical structure is mixed with a polymer carbon source, dried and calcined at 500°C to 650°C in a protective atmosphere. The primary particles of the material prepared by the invention are nano-scale, have preferential growth and uniform distribution, and are beneficial to the diffusion of lithium ions in the material. The size of the secondary particles is at the micron level, which is conducive to the stability of the structure. The prepared material has a high charge and discharge capacity, excellent cycle stability, and good rate performance.

The invention relates to a device and method for preliminary filtration of solid impurities in sewage, belonging to the technical field of sewage treatment equipment. The equipment includes a liquid pool and a sedimentation tank connected to the liquid pool. A rotating shaft is installed above the liquid pool; a filter grid is installed on the rotating shaft. There is a rotating cylinder on the periphery of the rotating shaft; the side wall of the rotating cylinder is provided with annular holes along the circumferential direction of the rotating cylinder; there are filtering holes on the filter grid, and the side of the filter grid is provided with a guiding slope; the side of the liquid pool is provided with The scraping mechanism extending along the corresponding annular hole to the filter grid. The invention uses the scraping mechanism to squeeze the impurities adhered to the surface into agglomerates, push them to the vicinity of the discharge channel, and finally enter the sedimentation tank for precipitation, thereby realizing the systematic and efficient treatment of impurities and improving the water purification ability, especially It is suitable for textile, papermaking and other traditional sewage discharge industries with large water consumption, and can play an important role in saving water resources and promoting the recycling of water resources.

The invention relates to a knife lip wiping apparatus, and belongs to the technical field of metallurgical surface treatment. The apparatus comprises an air knife device having a blowing lip and a triangular cross section, a wiping frame which forms a moving pair with the air knife device and can move along the length direction of the air knife device is arranged on the air knife device, and the position of the wiping frame adjacent to the lip of the knife is provided with a wiper which is positioned adjacent to the lip under an elasticity action. The knife lip wiping apparatus has the following beneficial effects: the wiper will overcome the influences of the high-pressure airflow ejected from the lip under the elastic action when the wiping apparatus works, so the full and effective contact with the air knife lip is realized, and the flexible wiper can cover the external surface of the lip; and the knife lip wiping apparatus can protrude into the gap of the lip by means of deformation, and wipes the lip in the translation process, so the cleaning effect of the lip is substantially improved.

The invention relates to the technical field of water for wheat conditioning, and discloses a wheat conditioning watering device for flour processing, including a base, the top of which is fixedly connected with a first water tank, the first water tank A support rod is fixedly connected between the bottom and the top of the base, the top of the first water tank communicates with a first feed hopper, the top of the first water tank communicates with a water injection pipe, and the side of the first water tank A first motor is fixedly connected, and the output end of the first motor passes through the side of the first water tank and is fixedly connected with a screw conveying rod. The present invention solves the problem that in the process of watering the wheat in the existing wheat moistening and watering device, it is generally only to pour water into the wheat and perform simple stirring, so it is difficult to ensure that all the wheat can be fully and evenly watered , seriously reducing the effect and quality of wheat water processing.

The invention provides an elevator safety clamp braking temperature rising measuring method and belongs to the technical field of elevator equipment detection. The elevator safety clamp braking temperature rising measuring method solves the problem that the elevator safety clamp braking temperature rising measuring precision is low. The elevator safety clamp braking temperature rising measuring method includes the following steps that A, multiple gathering grooves inclining relative to the length direction of a clamp block are formed in the work face of the safety clamp block; B, a temperaturemeasuring sensor is embedded in one gathering groove, and heat conduction silica gel is fixed to the notch position of the gathering groove; and C, the temperature rising value is obtained. By meansof the elevator safety clamp braking temperature rising measuring method, the measuring precision is higher.

A molten salt heat treatment method for waste incineration fly ash belongs to the ash slag treatment method, which solves the problems of high processing temperature, high energy consumption and difficulty in avoiding secondary pollution caused by toxic trace elements in the existing waste incineration fly ash treatment method. The invention includes the steps of preparing mixed molten salt, melting heat treatment, inspection of heavy metal content and extraction and recovery of heavy metal. The invention uses the excellent melting, heat storage and reaction characteristics of molten salt to realize the dissolution of chloride, sulfate and some heavy metals in fly ash. The process is relatively simple, the reaction conditions are mild and easy to control, and the heavy metals in fly ash can be effectively controlled. leaching, the processed molten salt can be recycled, and the leached heavy metals can be deeply enriched and recycled. The degree of hazard of the treated residue is greatly reduced, which is convenient for building material utilization and safe landfill, effectively reducing secondary pollution and improving Resource utilization efficiency can simultaneously realize the weight reduction, harmlessness and resource utilization of waste incineration fly ash.

The invention relates to an anode-cathode device for on-site metallurgical-phase electrolytic polishing corrosion instruments. The device comprises a power source, an anode assembly and a cathode assembly, wherein the anode assembly is connected with a positive pole circuit of the power source and fixedly arranged on a large-size workpiece, and is a certain distance away from the metallurgical examination site; the cathode assembly is connected with a negative pole circuit of the power source, and contacts the metallurgical examination site on the large-size workpiece after absorbing a chemical polishing reagent; and after the power is on, the device can perform electrolytic polishing corrosion on the metallurgical examination site. The invention also relates to an application method of the anode-cathode device for on-site metallurgical-phase electrolytic polishing corrosion instruments. The cathode assembly is used for absorbing the electrolytic chemical reagent; and thus, when the metallurgical examination site is subjected to polishing corrosion, the electrolytic chemical reagent can sufficiently contact the metallurgical examination site, and the anode assembly can be fixed to the ferromagnetic or non-ferromagnetic large-size workpiece, thereby implementing the metallurgical test on the metallurgical examination site on the on-site large-size workpiece by using the metallurgical-phase electrolytic polishing corrosion instrument, and achieving favorable polishing corrosion effects.