60results about How to "Improve water filtration efficiency" patented technology

A turn-over plate type filter pool is composed of pool body, filtering tubes, water collecting chamber, water draining pipe, back flushing pipe, filtering material layer, the canal and overflow dam for draining the black flushing water, and the flap valve consisting of valve frame, flap, sealing rubber ring and drive mechanism which comprises drive cylinder and push-pull connecting rod.

The invention discloses a method for improving the filtering efficiency of a tobacco powder extracting solution during production of tobacco sheets through a paper-making process. The method comprises the steps of firstly, preparing a proper cationic guar gum solution, then diluting into a solution with the mass concentration of 0.1-0.3%, and adding into the tobacco powder soaking and extracting solution to be filtered for filtering according to the proportion of 0.2%-0.6% of the absolute dry mass of tobacco powder. The method is simple and easy to implement, appropriate and practical cationic guar gum is found out through a large amount of experiments, by the aid of the method, the draining efficiency of the tobacco powder can be improved, device blockage times can be reduced by 20%-40%, the production efficiency can be improved, the working amount of operators can be reduced, and the method has great values in industrial production of tobacco sheets.

The invention provides a preparation method of para-aramid paper. The preparation method comprises the steps as follows: carrying out top wire forming on para-aramid nanofiber material liquid to obtain wet paper; carrying out multi-stage buffer squeezing dewatering on the wet paper to obtain dewatered wet paper; and sequentially carrying out multi-stage low-temperature drying and tension-assisteddrying and forming on the dewatered wet paper to obtain the para-aramid paper. The top wire forming method comprises the steps as follows: after carrying out sizing on the para-aramid nanofiber material liquid, carrying out drainage, and forming a wet paper blank on the surface of a forming wire; and carrying out bidirectional dewatering in a combined mode of carrying out vacuum suction on the lower surface of the wet paper blank and then carrying out dewatering on the upper surface of the wet paper blank by a top wire former, so as to obtain the wet paper. According to the invention, the aramid paper which is good in uniformity and excellent in mechanical property and insulation property can be prepared by adopting the special top wire forming process, the multi-stage buffer squeezing process, the multi-stage low-temperature drying process and the tension-assisted drying process. The invention further provides para-aramid paper.

A filling strainer pipe comprises a longitudinally arranged strainer pipe body and a steel wire rope, wherein the steel wire rope is located inside the strainer pipe body, the upper end and lower end of the strainer pipe body are respectively provided with a steel wire rope clip and a chuck in sequence, and a limiter is arranged inside the strainer pipe body; each chuck comprises a first limiting ring and an upper supporting ring; the limiter comprises a second limiting ring and a third limiting ring, and the steel wire rope penetrates through the first limiting ring and the upper supporting ring of the chuck at the upper end of the strainer pipe body, the second limiting ring and the third limiting ring of the limiter, and the upper supporting ring and the first limiting ring of the chuck at the lower end of the strainer pipe body in sequence; the upper end of the steel wire rope is clamped through the steel wire rope clip at the upper end of the strainer pipe body, and the lower end of the steel wire rope is clamped through the steel wire rope clip at the lower end of the strainer pipe body. The filling strainer pipe is simple in structure, convenient and quick to install, high in safety performance, long in service life, low in cost, and good in water filtration effect.

The invention relates to the technical field of water treatment, in particular to circular super-effect shallow air flotation filter treatment equipment and a treatment process thereof. The circular super-efficiency shallow air floatation filter treatment equipment comprises a filter pressing device and an air floatation biological filter for further purifying water filtered by the filter pressing device, wherein the filter pressing device comprises filter plates, a push plate assembly, a connecting rod assembly and a transmission assembly; there are even number of filter plates which are stacked and arranged in the left-right direction, and rollers are arranged on the front side and the rear side of the middle of each filter plate; the push plate assembly is used for pushing the filter plates to open; every two filter plates form a group in sequence from left to right, and each group of filter plates comprises a first filter plate positioned on the left side and a second filter plate positioned on the right side; the connecting rod assembly is configured to enable the second filter plate to be lifted upwards within a preset distance of rightward movement of the second filter plate; the transmission assembly enables the inner ends of the rollers of the first filter plate to move rightwards along with the second filter plate when the second filter plate is lifted upwards so that the rollers of the first filter plate are inclined, and the first filter plate is prevented from sliding rightwards along with the second filter plate under the adhesion of a filter cake.

The invention provides a cooker and belongs to the field of living goods. The technical problem that an existing cooker capable of filtering water is complex in structure is solved. The cooker comprises a pot body and a pot cover. Two symmetrically arranged pot lugs are fixed on the periphery of the pot body, and two symmetrically arranged cover lugs are fixed on the pot cover. The cover lugs are protruded relative to the edge of the pot cover, the upper end faces of the two pot lugs can abut against the lower end faces of the two cover lugs respectively, and when the pot lugs abut against the cover lugs, gaps are reserved between the upper edge of the pot body and the pot cover. The cooker has the advantages of being simple in structure and capable of filtering water efficiently.

The invention discloses an annular combined backwashing water filter, which relates to the technical field of environmental protection equipment, and comprises a telescopic transposition mechanism, awater filtering unit, a lifting top cover mechanism and a lifting sewage disc mechanism. According to the design scheme, the four groups of water filtering units which are uniformly distributed in theannular array are driven by pressure provided by the telescopic transposition mechanism to realize sealing, mutual connection, combination and assembly; the upper end surface and the lower end surface of a water filtering shell are effectively connected in a sealing manner under the symmetrical extrusion of the bottom lifting sewage disc and the top lifting top cover mechainism; on the premise that normal use of the water filtering unit is guaranteed, all components of the water filtering unit are automatically disassembled and assembled in a butt joint mode, the cleaning convenience of the water filtering unit is greatly improved, the cleaning efficiency and the cleaning thoroughness are improved, the water filtering quality can be guaranteed, the water filtering efficiency is improved,and the service life of the water filter is prolonged.

The invention discloses a production technology of a high wearproof warp-binding formed net. The production method comprises the steps of raw material purchasing, wire examination, beaming, reed delivery, net knitting, net verification, shaping, net cutting, insertion, examination, packaging and storage. The selected nylon monofilament and knitting structure can be totally adapted to the using requirement of a papermaking forming part under a high temperature and high humidity environment, and high wearproof performance of the formed net is achieved.

The invention discloses a nitrogen reduction technology through compounding of biological organisms in a water body. An aquatic organism food chain is taken as a carrier, organic matters such as nitrogen and inorganic salt are removed out of a reservoir, and the content of nitrogen in the reservoir is reduced. According to the technology, the content of nitrogen in the reservoir can be reduced, and the technology has high stability and reliability, is flexible to control and low in cost and has good economic benefits.

The invention relates to an anti-blocking device for a toilet, in particular a long-term anti-blocking device for a toilet. It includes a drain cover, a water filter cylinder and a fine filter plate; the drain cover is installed at one end of the water filter cylinder, and the fine filter plate is installed at the other end of the water filter cylinder; the center of the fine filter plate is provided with a first drain A through hole; the end of the water filter cylinder in contact with the fine filter plate is provided with a second drainage through hole; the cylinder surface of the water filter cylinder is provided with a water filtering structure; the surface of the drain cover is provided with a drain port. It can greatly reduce the frequency of cleaning, greatly improve the ability to contain hair and dirt, and at the same time, it does not affect the hydrophobic effect. Multi-stage filtration, multi-layer anti-blocking, further improve the anti-blocking effect. To improve the water filtration efficiency, the structure of the existing pipe cover often causes the internal structure to bend in order to prevent blockage, and the water filter opening is narrow and easy to be blocked by hair and sundries, resulting in that the water filtration effect will be reduced before cleaning. Gradually reduce, resulting in, the water flow of the bathroom is accumulated.

The invention discloses a self-priming ultra-filtration water purifier, which comprises a water suction port, and a front filtering device, an integrated ultra-filtration membrane, a rear filtering device and a water-purifying outlet which are connected according to the water inlet order. The front part of the integrated ultra-filtration membrane is communicated with a self-priming booster pump; and the rear part of the integrated ultra-filtration membrane is communicated with a starting switch. The ultra-filtration membrane is also connected with a flushing port through an automatic flushing valve. The front filtering device consists of a fiber filter element, a granular active carbon filter element, and a compressed active carbon filter element; and the rear filtering device is active carbon. Due to the self-priming booster pump, water pressure-free underground water and surface water in rural areas can be input the self-priming ultra-filtration water purifier. Therefore, the water is purified so as to reach the drinking standard.

The invention provides a special cloth filter for electroosmosis sludge high-dryness dewatering equipment, which comprises a cloth filter body and a mesh fabric arranged under the cloth filter, wherein the cloth filter body and mesh fabric constitute the cloth filter; the upper surface of the cloth filter body contacts a sludge cake; and the mesh fabric contacts a sealing surface of a filter cell. Compared with the conventional cloth filters, the cloth filter provided by the invention has the characteristics of simple structure, heat resistance, wear resistance, long service life, favorable sealability, reliable operation and the like, and is convenient for disassembly and assembly and also convenient for material removal. The special cloth filter can lower the sludge water content and save the power consumption by 10kwh per ton of sludge, and the service life is prolonged by 2-3 times as compared with the common cloth filters.

The invention discloses a filter core. The filter core comprises a shell body and a filter material arranged in the shell body, wherein a water inlet and a water outlet are arranged on the shell body,at least one partition plate is further arranged in the filter core, and the partition plate can make the length of a water flow channel between the water inlet and the water outlet longer than the straight line distance between the water inlet and the water outlet. By means of the technical scheme, a good filtering effect can be ensured, and the volume of the filter core is simultaneously reduced; furthermore, the style designs of a filtering kettle and a water purifier are not limited by the oversized volume of the filter core; in addition, the filter core is enabled to have a water storagefunction by controlling the height difference between the water outlet and the water inlet; when the filter core is not used for a long time, the filter material in the filter core can still keep better activity. The invention further provides the filtering kettle with the filter core.

The invention discloses a belt type sludge dewatering machine which is characterized in that a driving roller is arranged at the lower part of one end of a stand; a driven roller is arranged at the upper part of one end of the stand; the stand is provided with a plurality of guide rollers and a plurality of wringing rollers distributed in an S shape; a distributing mesh belt is horizontally laid on a bracket arranged above the stand after encircling the driving roller, the plurality of wringing rollers and the plurality of guide rollers; a shoving mesh belt is encircled on the driven roller and the plurality of wringing rollers distributed in the S shape; two distributing devices which are parallel to each other are arranged on the stand above the distributing mesh belt. According to the arrangement, the distributing devices are arranged, so that the sludge is evenly distributed on the plane of the distributing mesh belt; when the sludge is extruded by the distributing mesh belt and the shoving mesh belt, the sludge dewatering machine is not easily blocked completely, so that the water filtration efficiency of the sludge can be improved.