3results about How to "Increase filter pressure" patented technology

The utility model relates to a semiconductor grinding wastewater treatment device, which belongs to the technical field of wastewater treatment devices and comprises a tank body, a sealing cover detachably mounted on the upper surface of the tank body and a controller fixedly mounted outside the tank body. A pressurizing mechanism extending into the tank body is arranged on the upper surface of the sealing cover, and the mixing mechanism comprises a mixing box fixedly mounted outside the tank body and a driving motor fixedly mounted outside the mixing box. According to the semiconductor grinding wastewater treatment device, the driving motor is started to work through the controller to drive the rotating disc to rotate, so that the frame body can perform reciprocating motion in the mixing box under the driving of the connecting rod and the rotating disc, and strong oscillation and shearing force are generated between wastewater and a purifying agent through the reciprocating motion, so that rapid and uniform mixing is realized; the mixing efficiency is improved, the wastewater treatment effect is ensured, and the advantage of efficient treatment is achieved.

This application relates to a positive-pressure long-endurance aviation breathing apparatus, which belongs to the field of emergency rescue equipment. It includes a pressure cylinder, a pressure reducer, a molecular membrane filter, a positive-pressure container, a carbon dioxide absorption device, and a breathing mask. The inlet of the pressure reducer is connected to the pressure cylinder, and the outlet is connected to the filter inlet of the molecular membrane filter. The oxygen-enriched outlet of the molecular membrane filter is connected to the positive-pressure container. An oxygen supply pipe is connected between the positive-pressure container and the breathing mask inlet. An oxygen recovery pipe is provided between the breathing mask outlet and the positive-pressure container. The carbon dioxide absorption device is installed on the oxygen recovery pipe, which can increase the oxygen content of the breathing gas and extend the endurance.

The utility model relates to the technical field of filtering equipment, in particular to a pulse backwash filter, which comprises a filtering tank, a fixed plate fixed in the filtering tank and a plurality of microfiber filter elements mounted on the fixed plate, and the fixed plate divides the inside of the filtering tank into a clear water cavity and a filtering cavity from top to bottom in sequence. The bottom of the filter cavity is a concentration cavity, the microfiber filter element extends downwards into the filter cavity, a filter channel communicated with the clear water cavity is formed in the microfiber filter element, and a plurality of filter micropores communicated with the filter cavity and the filter channel are radially distributed in the microfiber filter element. A pulse backwashing pipe and a clear water pipe which are communicated with the clear water cavity are arranged at the top end of the filtering tank; one side of the filtering cavity is communicated with a water inlet pipe; the cleaning process is more convenient, the consumed time is shorter, and the filtering efficiency of the filter is ensured.