2results about How to "Regular replacement" patented technology

This utility model discloses an air purification mechanism for a ventilation device, including a ventilation housing. The air inlet end of the ventilation housing is connected to an air inlet duct via a flange, and the air outlet end of the ventilation housing is connected to an exhaust duct via a flange. A fan is installed inside the exhaust duct. A mesh protective plate is screwed onto one end of both the air inlet and exhaust ducts. This utility model improves air purification efficiency by sequentially arranging a filter screen, an electrostatic dust collection module, a HEPA filter element, and an activated carbon layer within the ventilation housing. The layered spatial arrangement allows for periodic disassembly, cleaning, or replacement of the filter screen. A self-cleaning structure is provided above the filter screen. A nylon brush moves parallel to the filter screen surface via a synchronous belt, and the negative pressure suction port enhances the cleaning effect. When the differential pressure sensors at both ends detect that the filter screen resistance reaches a preset value, cleaning is triggered, achieving self-cleaning of the filter screen, shortening cleaning time, and improving the filter screen flux recovery rate.

This invention relates to the field of powder coating production technology and discloses an anti-adhesion cooling device for powder coating production. In this invention, a corresponding conveying component is placed inside the external frame. An auxiliary spring-loaded assembly, consisting of a guide groove, pressure rod, connecting shaft, and return spring, allows a soft pad placed on its side surface to intermittently contact the material on the bottom conveyor belt at appropriate times. Even after cooling, the coating material that remains adhered will partially break off under the contact of the soft pad. The spring-loaded contact of the soft pad relies mainly on the interaction between the contact rod, connecting sleeve, abutment rod, and return spring connected to the other end. This device separates material that remains adhered after cooling under mechanical stress; the overall structure is simple and easy to operate.