4results about How to "Prevent spillover" patented technology

The utility model relates to a molding sand feeding device for droplet jet molding equipment. According to the molding sand feeding device for the droplet jet molding equipment, the interior of a vacuum feeding barrel and the position of a feeding opening are processed into a vacuum environment through a vacuum source, molding sand is conveniently sucked and conveyed into the vacuum feeding barrel, the molding sand falls into a conveying barrel through a discharging opening under the action of the gravity of the molding sand, and a driving mechanism drives a rotating shaft to drive a spiral blade to rotate; molding sand in the conveying cylinder is conveyed to the discharging station from the feeding station, the molding sand at the discharging station enters the quantitative sand discharging device through the discharging port and the sand guiding pipe under the action of the gravity of the molding sand, and therefore the spiral conveying assembly and the vacuum feeding assembly are matched with each other; the connection position between the molding sand feeding device and the quantitative sand discharging device for the micro-droplet jet molding equipment does not blow back and overflow sand due to the negative pressure characteristic, the phenomenon that the molding sand overflows due to negative pressure blowback caused by direct vacuum feeding is effectively avoided, and the probability that a movement module is damaged due to serious sand accumulation is reduced.

This utility model discloses a dust removal device for iron ore crushing production, including a dust removal fan. The input end of the dust removal fan is connected to a dust removal hood via a dust removal pipe. The dust removal hood is located on one side of the top of the crusher body. A dust removal filter screen is installed at the lower end of the interior of the dust removal hood. A feed hopper is installed at the upper end of the crusher body away from the dust removal hood via a feed inlet. A screen is installed at the lower end of the interior of the crusher body. A crushing mechanism is installed on the crusher body above the screen. A dust removal and anti-clogging mechanism is installed on the crushing mechanism. A drying chamber is installed on one side of the crusher body. A discharge hopper is installed at the top of the drying chamber on the side away from the crusher body. An air supply mechanism is installed at the top of the drying chamber on the side of the discharge hopper. This utility model, through a series of structures, ensures smooth dust removal and filtration during crushing and cleaning. The cleaned material from the filter surface falls directly into the crusher body for easy processing. The clean air discharged from the dust removal process is used for large-area and even air supply drying of the iron ore.

A kind of packaging machine feeding structure, including rack and feeding mechanism arranged on rack.It includes conveying dynamic cooperation unit, static cooperation unit and power drive unit.Conveying dynamic cooperation unit and static cooperation unit constitute horizontal reciprocating motion adaptation structure, and power drive unit is transmission connection with conveying dynamic cooperation unit.Non-metal wear-resistant layer is arranged on the sliding contact surface of both, and both are adjusted in space by positioning floating structure, which limits horizontal relative displacement, and allows conveying dynamic cooperation unit to adaptively float in vertical direction.The utility model forms dynamic self-adapting sealing by the synergies of non-metal wear-resistant layer and positioning floating structure, eliminates traditional rigid gap, effectively prevents powder overflow and liquid leakage, avoids material to be stuck in sliding interface;Non-metal wear-resistant layer has self-lubricating characteristics, significantly reduces the wear of metal parts, prolongs the service life of equipment, and improves operation reliability.

This application relates to a method for filling a perovskite solar cell module slot, comprising: filling the slot with a first filler having a first preset viscosity, such that the first filler covers the bottom and at least part of the sidewalls of the slot; filling the slot with a second filler having a second preset viscosity, such that the second filler covers the first filler and a preset area of ​​the edge of the slot; the second preset viscosity is greater than the first preset viscosity. This method achieves precise and reliable sealing of the slot and its preset edge area, effectively improving problems such as residual debris, electrical defects, and moisture migration in the slot, thereby increasing the yield, power generation performance, and long-term reliability of the perovskite solar cell module.