10381 results about "Screen filter" patented technology

A shower head generally comprising a face plate, an outer housing, a water chamber, a ball holder, a button, a seal, a nozzle, a screen filter, a pivot ball, and a label logo. The ball holder covers the pivot ball, wherein the pivot ball is flush with the seal which is disposed in the water chamber. In a preferred embodiment, the water chamber comprises two portions having two different diameters, wherein the ball holder is connected over the portion having the smaller diameter. The ball holder is simultaneously disposed on top of the portion having the larger diameter.

A process of producing a polyolefin, in one embodiment a polyethylene, and in a preferred embodiment a bimodal polyethylene comprising a high molecular weight component and a low molecular weight component, the process comprising providing a polyolefin having an I21 value of from 2 to 100 g / 10 min and a density of from 0.91 to 0.97 g / cm3; followed by forming a melt of the polyolefin and passing the polyolefin through one or more active screen filter(s) having a mesh size of from 70 to 200 micron at a mass flux of from 5 to 100 lbs / hr / square inch; and isolating the polyolefin having passed through the screen filter.

The invention discloses a water spray-type air purifier. Core components and three filter layers are arranged in the water spray-type air purifier, wherein the core components comprise a wet curtain and a circulating water system, and the three filter layers comprise a primary filter screen, an activated carbon layer and an HEPA (high efficiency particulate air) filter screen. The wet curtain consists of wet curtain paper, and is of a honeycomb structure; during a purification process, water is sprayed from a sprayer above the wet curtain, and evenly flows through the surface of the whole wet curtain to form a layer of fine water film; polluted air passes through the wet curtain; polluted gas dissolved in the water is absorbed, and a large amount of particulate matter is isolated, and therefore, the polluted air is purified; moreover, disinfectants or aromatics are added to the water to achieve an effect of killing germs or bringing fragrance. The pollutants flow into a water tank of a machine chassis along with water flow, and under the action of a water pump, the cyclic utilization of purification water is finished. Meanwhile, a large number of natural negative ions are generated during a process that the water flows through the wet curtain like a waterfall or the condition after rain in the nature, so that the purified air is clean, fresh and dynamic. The water spray-type air purifier has the advantages of being energy-saving, green, environmentally friendly and high in cost performance.

The invention discloses a multi-step water body ecological purification system. The system comprises a concrete bed body, wherein the concrete bed body comprises three regions from top to bottom, respectively a floating bed region, a microorganism region and a sedimentation bed region; a ventilating pipe is arranged in the floating bed region; a vent and a windmill are arranged at the upper end of the ventilating pipe; the windmill is fixedly arranged below and close to the vent; an aeration opening and a stirrer are arranged at the lower end of the ventilating pipe; the stirrer is fixedly arranged above the aeration opening; the lower end of the ventilating pipe deeply extends into the microorganism region; a water inlet and a water outlet are respectively formed in the left and right sides of the concrete bed body; and detachable filter screens are respectively arranged at the water inlet and the water outlet. The invention also discloses a construction method of the multi-step water body ecological purification system. The multi-step water body ecological purification system disclosed by the invention is rapid in purification speed, good in purification effect, easy to maintain and manage and low in cost.

A method and apparatus for separating oil and debris from urban water run-off, the apparatus being made up of a chamber which is mounted in a storm drain system and has an inner basin with a tilted wire wedge wire screen filter in the path of flow of the run-off, an organic absorber floats on the water as it is collected in the basin, and a discharge plate has a series of slots which are sized to regulate the flow rate of discharge of the water from the basin for removal through an outlet at the lower end of the chamber. The method and apparatus are conformable for use with existing storm drain systems along curbs or gutters as well as parking lots, runways and the like.