3results about How to "Improve daily throughput" patented technology

The application belongs to the technical field of phosphogypsum resource utilization, and discloses a method for synthesizing water sodium ettringite by using phosphogypsum under low temperature, rapid and normal pressure hydrothermal reaction, which comprises the following steps: 1) mixing water with phosphoric acid-sulfonic acid double-group modified polycarboxylic superplasticizer and small-molecule polycarboxylic salt crystal modifier, and then stirring uniformly to obtain a reaction bottom liquid; wherein the phosphoric acid-sulfonic acid double-group modified polycarboxylic superplasticizer is prepared by free radical copolymerization of unsaturated carboxylic acid monomer, ethylene glycol monovinyl polyoxyethylene ether macromonomer, phosphoric acid group-containing monomer and sulfonic acid group-containing monomer under ultraviolet irradiation; 2) preheating the reaction bottom liquid, adding sodium salt and phosphogypsum, and then performing normal pressure hydrothermal crystal transformation at 70-80 DEG C for 15-30 min to obtain water sodium ettringite. The application can realize ultrafast hydrothermal conversion within 30 min under the mild conditions of low temperature (70-80 DEG C) and normal pressure, and cultivate short columnar water sodium ettringite which is highly dispersed, small in particle size and uniform.

This invention relates to a rapid drying method, apparatus, and sodium-ion battery for Prussian blue analogue sodium-ion battery electrodes, belonging to the field of sodium-ion battery manufacturing technology. The rapid drying method includes the following steps: S1: Preparing the wet electrode sheet and feeding it into a drying chamber for drying; S2: Transferring it to an internally heated dehydration section for gradient temperature dehydration; S3: Transferring it to an instantaneous high-temperature dehydration section for instantaneous high-temperature dehydration; S4: Transferring it to a heat-preserving dehydration section for further deep dehydration; S5: Cooling the electrode sheet after step S4 to obtain a dried electrode sheet. This drying method has the advantages of being rapid and low-cost, and can minimize structural damage to the Prussian blue analogue material.

The utility model provides a kind of waste mineral oil recovery filtering device, it is related to waste mineral oil filtering technical field, the utility model includes two first installation rails fixedly installed on the top surface of recovery tank, the side surface of recovery tank is fixedly installed with two U-shaped support rods, the end surface of two U-shaped support rods away from recovery tank is fixedly installed with second installation rail, filter screen is inserted between each first installation rail and each second installation rail, the utility model switches filtering device, so that it uses double filter screen alternate operation, when one of filter screen is blocked, it can be switched to another filter screen to continue filtering quickly, without shutdown waiting for cleaning, avoid filtering interruption, effectively prolong daily effective filtering time, improve the daily processing capacity of waste mineral oil.