5results about How to "Easy to collapse" patented technology

This utility model discloses a sludge scraping and slag removal device for a black film biogas digester, belonging to the field of biogas digester technology. It includes: a sludge discharge pipeline system located inside the black film digester; the sludge discharge pipeline system includes a main sludge discharge pipe, with sludge discharge branch pipes connected to both sides of the main sludge discharge pipe, and a fixed cylinder installed at the end of each branch pipe away from the main sludge discharge pipe. This utility model uses a pump installed on the sludge discharge pipeline system to generate suction on the sludge, causing the sludge to be discharged upwards from the bottom of the digester along the branch pipes and the main sludge discharge pipe. When the sludge passes through the inside of the fixed cylinder, it pushes the impeller plate on the connecting shaft, which in turn drives the mounting base and flexible scraper rod to rotate. This facilitates light scraping of the sludge around the inlet of the branch pipe, loosening the accumulated sludge and making it easier for the sludge to collapse under gravity. Simultaneously, a backwashing system uses water pressure to flush the sludge at the bottom of the digester, reducing the integrity of the sludge, increasing its fluidity in the wastewater, and making it easier to discharge.

The application provides a vehicle body front end structure and a vehicle. The vehicle body front end structure comprises a reinforcing support arranged on a front bumper, the reinforcing support comprises a main body part and an extension part arranged at the bottom of the main body part; the main body part is connected with a bumper body of the front bumper, the bumper body has a mounting area for mounting a license plate, the extension part extends downward along the up-down direction of the whole vehicle, and a connecting part is arranged on the extension part, the connecting part is located at the rear side of the mounting area and is connected with a lower grille of the front bumper. The vehicle body front end structure has the extension part arranged on the main body part and connected with the lower grille, which is beneficial to improving the strength of the vehicle body front end in the up-down direction of the whole vehicle and the continuity of force transmission, and the fastening stress point when the connecting part is connected with the lower grille is located in a non-visual area, which is beneficial to solving the problem of visual light shadow disorder of the front bumper caused by force pulling and improving the appearance of the front part of the whole vehicle.

The application discloses a composite core which can be used for extrusion casting and pressure casting, and is composed of an inner core and a sand core layer, and can be used for extrusion casting and pressure casting, and can make the core free from preheating, and the sand core layer can be easily collapsed, so that the core can be easily taken out after the casting is completed.

The application discloses a preparation method of lithium ion adsorption material and application thereof, and belongs to the technical field of lithium ion adsorption material. The method comprises the following steps: dissolving a spinning polymer in a solvent, adding nano lithium adsorbent powder, performing electrostatic spinning on the obtained spinning suspension liquid, placing the obtained fiber felt in water to perform homogenization, obtaining a nano short fiber dispersion liquid, adding an anionic surfactant to the nano short fiber dispersion liquid, stirring and foaming, adding a cationic polyacrylamide solution to perform flocculation after the foaming is completed, drying the obtained wet foam to obtain a fiber-based solid foam, immersing the fiber-based solid foam in a reinforcing liquid, and then performing filtration and heating drying, so as to obtain the lithium ion adsorption material.

The invention relates to the technical field of separation and extraction of natural products, in particular to a method for supercritical separation and extraction of astaxanthin, which comprises the following steps: (1) weighing raw material components in parts by weight; (2) mixing a biomass raw material rich in astaxanthin with the functionalized deep-eutectic solvent, and performing physical field enhanced extraction to obtain an extracting solution; (3) filtering the extracting solution through a vibrating membrane, and purifying to obtain a trapped fluid containing astaxanthin; and (4) carrying out supercritical CO2 back extraction on the trapped fluid, separating to obtain an astaxanthin product, and recovering the functional eutectic solvent. According to the method, continuous membrane separation and purification under the eutectic solvent system are realized, the purity of astaxanthin and the proportion of all-trans astaxanthin are maintained while the extraction rate of astaxanthin is increased, the solvent can be recycled after being recovered, and the production cost and waste liquid discharge are greatly reduced. All the raw materials are nontoxic and harmless, no organic solvent is used in the technological process, and good application prospects are achieved.