92results about How to "Not easy to foul" patented technology

The invention discloses a polypropylene hollow fiber microporous membrane and a preparation method thereof. The hollow fiber microporous membrane comprises the following components in percentage by weight: 15-45% of polypropylene, 50-80% of thinner and 0.1-5% of additive. The preparation method of the hollow fiber microporous membrane is realized on the basis of a thermotropic phase separation process. The preparation method of the polypropylene hollow fiber microporous membrane is simple and easy to industrialize, and has low requirements on equipment, the prepared hollow fiber microporous membrane has the advantages of high strength, uniform pore diameter distribution, high porosity and the like, the pore diameter of the hollow fiber microporous membrane can be controlled between 0.1 and 0.45mu m, and the porosity is 60-85%, so the hollow fiber microporous membrane has large water flux, is not easy to block in use, can be widely used for feeding water treatment, and is particularly suitable for the membrane bioreactor technology and other water treatment fields.

The invention discloses a device for recycling heat radiated from a rotary cement kiln shell body, comprising a plurality of heat transfer covers arranged on the upper section of the rotary cement kiln shell body. Each of the external surfaces of the heat transfer covers is provided with an insulating layer, sealing equipment is arranged between the two ends of the heat transfer covers and the rotary cement kiln shell body, a sealing heat transfer cavity is formed by the inner surfaces of the heat transfer covers and the external surface of the rotary kiln shell body via the sealing equipment, the bottom of the heat transfer covers is provided with an inlet which is communicated with the heat transfer cavity, the top of the heat transfer covers is provided with an outlet which is communicated with the heat transfer cavity, the bottom of the heat transfer covers is connected to a slip fitting so as to realize the axial displacement. The sealing equipment comprises a permanent seat on the external surface of the rotary cement kiln shell body, and one side of the permanent seat is provided with a dynamic sealing ring; the bottom of the dynamic seal ring is hermetically connected to the rotary cement kiln shell body by a temperature resistant rubber I, and a self-propelling stationary seal ring is arranged between the dynamic seal ring and the head face of the heat transfer cover; the top of the self-propelling stationary seal ring is hermetically connected to the head face of the heat transfer cover by a temperature resistant rubber II, the self-propelling stationary seal ring is connected to an elastic stationary seal ring, and a sealing gland is arranged between the elastic stationary seal ring and the dynamic seal ring.

The invention provides a sidestream reverse osmosis membrane element which has a simple water way. A side surface of the sidestream reverse osmosis membrane element is a water outlet and one end of the sidestream reverse osmosis membrane element is a water inlet, or the side surface is the water inlet and the end is the water outlet. According to a technical scheme provided by the invention, the reverse osmosis membrane element only has one water inlet, so the water way is simple, convenient installation is realized, and advantages of the sidestream reverse osmosis membrane element are reserved, e.g., easy rolling and a great flow velocity on a membrane surface.

The invention discloses a special film based treatment process for waste incineration plant leachate. The process comprises: centralizing landfill leachate through a collecting pond; firstly carrying out coagulating sedimentation pre-treatment on the landfill leachate; carrying out preliminary treatment on the landfill leachate throng anaerobic microbes; then carrying out bio-treatment on the landfill leachate to remove almost organic pollutants and COD, thereby guaranteeing the inflow water quality for a SuperNF/RO system; and finally, discharging the effluent with a standard through the SuperNF/RO system, and evaporating and separating a concentrated solution. According to the invention, the problem that concentrated water is back-ejected to incinerate is avoided; the equipment is protected; the process is relatively simple; the cost is easy to control; and a film system is hardly polluted and blocked, is stronger in pollution resistance and good in system stability; so that the influence on biochemical treatment effect is effectively avoided to a certain extent; the service life of the film system is greatly prolonged; and meanwhile, biogas generated by anaerobic treatment provides energy supply to evaporation and separation of concentrated water for a biogas boiler, therefore the resource waste is avoided; the wastes are use; and the process is environmental-friendly and energy-saving.

The invention relates to an ultrafiltration and microfiltration membrane assembly for a tubular composite membrane, relating to the filtering element for water treatment. The ultrafiltration and microfiltration membrane assembly for the tubular composite membrane comprises a tubular machine shell with the ellipse heads which are symmetrically arranged at both ends and fastened by a strap. The centers of the two ellipse heads penetrate through a perforated central tube. A drain plug is arranged in the middle section of the perforated central tube and the ellipse heads are provided with a concentrated water outlet, an original water inlet and a purified water outlet, respectively. Multilayer membranous tubes with different inner and outer diameters are arranged areally on the circumference of the perforated central tube. The shell material of the tubular membrane assembly is polyvinyl chloride (PVC) or glass steel and the inner diameter of the membranous tubes is 5-20mm while the outer diameter thereof is 10-30mm. The membranous tubes consist of a basic membrane and a surface membrane, wherein the basic membrane material is sintered by using ultrahigh molecular weight polyethylene (UHMW-PE), and the material of the surface membrane filtering layer is polyvinylidene fluoride (PVDF), polyacrylonitrile (PAN) and polyvinyl acetate (PVA). The ultrafiltration and microfiltration membrane assembly can be matched with other pipelines, valves, instruments to form an ultrafiltration and microfiltration set for membrane engineering and has the characteristics of high strength, pollution resistance, fouling resisting property, short process flow, rapid online backwash-regeneration, long service life and the like.

The invention discloses a manufacturing method for water faucet bodies, which comprises: step1, stainless steel pipes and / or stainless steel sheets are used respectively for processing and forming pin components and effluent components of the faucet body; step2, the processed and formed pin components and the effluent components are welded one by one in sequence to form the complete water faucet body in an assembly way; step3, the polishing and the electroplating treatment are carried out on the welded water faucet body. The invention avoids problems of bad quality, low material utilization, energy consumption, environment pollution, and the like produced by the traditional casting and hot forging, simplifies the manufacturing technique, and leads the processing and manufacturing processes to be controllable, thus improving the production efficiency and the yield significantly. As no expensive expenditure on forming dies is needed, the manufacturing method for the water faucet bodies saves the materials and reduces the production cost obviously; meanwhile, the method produces less negative influence to the surrounding environment, meets the requirements of energy-saving and environmental protection, and is very suitable for the wide substitution and application within the industry.

The invention discloses a hinge filtering component and a filtering system. The hinge filtering component comprises an outer cylinder, an inner cylinder and a filtering layer, wherein a filtering material is folded into a corrugated layer encircling the exterior of the inner cylinder, thereby forming the filtering layer; the filtering material is composed of two layers of soft filtering net frames and a filtering film or filtering cloth clamped between the two layers of the soft filtering net frames; and all waved hinges of the filtering material are tightly wound on the inner cylinder along a same direction. The filtering system comprises the hinge filtering component. Two filtering modes of positive filtering and negative filtering can be realized by the hinge filtering component provided by the invention. The two filtering modes are alternatively used, so that a stressed direction of the filtering layer is variable. The positive filtering and the negative filtering are realized, so that a film-blocked phenomenon or an irrecoverable film deformation problem caused by long-term filtering along a same direction is avoided. In the filtering system provided by the invention, a process of halting and connecting an external water source is unnecessary and a backwash operation is simple.

The invention relates to the technical field of membrane separation, and particularly relates to a membrane module for a novel efficient membrane bioreactor. The membrane module comprises an upper end cover (6), a membrane module housing (5), a lower end cover (3), a soft pouring material (9) and hollow fibre membrane silks (10), wherein the upper ends of the plurality of hollow fibre membrane silks (10) are hermetically bonded at an upper port in the membrane module housing (5), and the lower ends of the hollow fibre membrane silks (10) freely drop inside the membrane module housing (5) to form an overhanging structure; and plugging heads (11) are arranged at the bottom ends of the hollow fibre membrane silks (10). The membrane module disclosed by the invention has the advantages that due to the design of the overhanging membrane silks, the membrane module is not easily plugged by dirt and is easy to wash and maintain; due to a positive-pressure operation, the membrane module is large in membrane flux and water treatment amount and small in occupied area is small; external-pressure type membrane silks resist pollution; and the membrane module is suitable for a higher activated sludge concentration and higher in treatment efficiency, low in running energy consumption, long in service life, and low in price, thus saving investment.

The invention provides a strong brine evaporation and crystallization system including an evaporation chamber (1) having a first inlet (2) and a first outlet (3), a condensation chamber (4) having a second inlet (5) and a second outlet (6), and a strong brine tank (7) communicated with the evaporation chamber (1) through a pump (8), wherein the first inlet (2) is communicated with the second outlet (6), the first outlet (3) is communicated with the second inlet (5), the first outlet (3) is provided with a fan (9) for guiding water steam in the evaporation chamber (1) to flow to the condensation chamber (4), and the evaporation chamber (1) is provided with an ultrasonic atomizer (10) for atomizing strong brine in the evaporation chamber (1). The invention aims to provide the efficient and reliable strong brine evaporation and crystallization system which can effectively prevent generation of scaling during the treatment process.

The invention relates to gas purifying and cooling process and equipment, in particular to gas purifying and cooling process and equipment of a two-section furnace. The gas is cooled by an induced air or blast type air cooling tower instead of a tube air cooling tower and an intercooler in the traditional gas cooling and purifying process, and the preheated air enters a gas furnace. Because the intercooler and a softened water supplying, returning and cooling system thereof are eliminated, the equipment manufacture cost and the maintenance cost of the whole process system are greatly reduced; the preheated air enters the gas furnace, thereby strengthening the gasification process of coal, improving the output of the coal and reducing energy loss; the induced air or blast type air cooling tower has a large heat transfer coefficient, reinforced convection heat transfer and good cooling effect; meanwhile, the volume and the weight of the induced air or blast type air cooling tower are reduced, and the equipment investment is lowered.

The invention discloses a self-cleaning and automatic deslagging filter used for deslagging cane juice in a cane sugar factory. The self-cleaning and automatic deslagging filter comprises an air inlet pipe, a sweeping screen sprayer, a piston slag pushing device, a cane juice inlet pipe, a cane juice distributor, a wedge-shaped screen, a cover plate, a solid waste slag discharging hole, a shell and a cane juice outlet pipe. The self-cleaning and automatic deslagging filter is characterized in that the rectangular wedge-shaped screen is arranged in the shell, the cane juice distributor is arranged at one end of the wedge-shaped screen, and is connected with the cane juice inlet pipe, the piston slag pushing device is arranged on the surface of the wedge-shaped screen, solid waste slag is discharged from the solid waste slag discharging hole in the other end of the wedge-shaped screen, the sweeping screen sprayer is arranged on the bottom surface of the wedge-shaped screen and is connected with the air inlet pipe, the cover plate is arranged above the shell to prevent the solid waste slag from being sprayed, and the cane juice outlet pipe is arranged below the shell, and is connected with a cane juice tank below the cane juice outlet pipe. The self-cleaning and automatic deslagging filter has the advantages of good filtering effect, low energy consumption, small noise, simple structure, reliable work and the like; self-cleaning and automatic deslagging are easily realized.

The invention relates to a hollow fiber porous membrane filter component which comprises a water outlet pipe connected with a water suction pump and used for discharging filtered water, a membrane bundle cup used for connecting a hollow fiber membrane bundle and communicated with the water outlet pipe by a water outlet hose, an aeration pipe communicated with air supply and provided with aeration holes on the surrounding wall, and the hollow fiber membrane bundle immersed in sewage to be treated and arranged in a U-shape form, with the two ends connected with the membrane bundle cup and the bending part arranged on the aeration pipe. The aeration holes on the aeration pipe are arranged at positions corresponding to the bending part of the hollow fiber membrane bundle. The component has the advantages that the membrane surface of the whole membrane bundle is not easy to be fouled and blocked, the connecting root part of the membrane bundle is not easy to be damaged, the structure is simple and easy to be maintained, scale production is easy to form and the like.

The invention discloses a treatment method and system for waste lye. The treatment method comprises the following steps: removal of organic matters: removing organic matters in the waste lye to obtainlow-organic waste lye; salting: mixing an organic solvent and the low-organic waste lye to separate out inorganic salt which is insoluble in the organic solvent from the low-organic waste lye in order to form a solid-liquid mixture; performing solid-liquid separation on the solid-liquid mixture to obtain solid-phase inorganic salt and waste lye containing the organic solvent; and recovery of theorganic solvent: separating the organic solvent from the waste lye containing the organic solvent to obtain a lye solution. Compared with the prior art, the treatment method and system for the waste lye disclosed by the invention has the advantages that a high-purity hydroxide lye solution can be obtained, and hydroxide resources in the waste lye are recycled effectively; moreover, the whole system is easy to operate; the energy consumption is low; and pollution and plugging are not prone to occur.

The invention is a depth-type sand filter, the size of sand gradually diminishing with the flow direction of the normal filtering fluid. It leads the fluid to the inlet of the sand filter through the pipeline, firstly holds back big suspension through big sand area, then holds back medium suspension through medium sand area, finally eliminates most fine suspension through fine sand area, and then makes the fluid flow out from the outlet. It is composed of wall body, filtering sand and ground leak; the wall body is set with inlet and outlet, the ground leak is set under the wall body, the filtering sand is spread in the liquid flow direction in turn according to the size. It can adopt upflow and downflow modes. It can stably and economically run in a wide range. It is applied to economical sand filtering field, especially the field where the sand filter is used infrequently or discontinuously.

The invention discloses a pore shaft water supply filter assembly and a filter system. A filter layer of the pore shaft water supply filter assembly is a filter material which surrounds outside an inner cylinder body to be folded into a wave shape, a pore shaft is arranged outside each folding point of the filter material, which is adjacent to the inner cylinder body, the axial line of each pore shaft is parallel to the axial line of the inner cylinder body, each pore shaft is a pipe body, and all hinges of the filter material are tightly wound on a combination body of the inner cylinder body and all pore shafts along the same direction. According to the filter system, a plurality of filter assemblies are adopted. The filter material is supported by the pore shafts to form an arc surface, clear water of concentrated water, which is filtered from the arc surface, enters the inner cylinder body, and the filter material has no bevels in the arc surface without forming dead angles or causing impurity accumulation or blocking a filter layer; and during backwashing after filtering, a cleaning solution enters the pore shafts from the inner cylinder body through the arc surface of the filter material, so that impurities on the filter layer can be easily washed out and can be discharged out together with the cleaning solution.

The invention discloses a stainless filiform water sprinkler, comprising a sprinkler assembly, a water inlet sheet and a water outlet panel, wherein a plurality of water outlets are formed in the water outlet panel, the upper part of each water outlet forms a hopper port, the surface of each hopper port is a glaze, the water inlet sheet is arranged between the sprinkler assembly and the water outlet panel, and the water inlet sheet is provided with inclined water openings corresponding to the water outlets of the water outlet panel. The phenomena of scale depositing and blocking can be improved, so that filiform spray is generated, and showering is enabled to be more comfortable.

The invention creatively provides a technological system for treating terrestrial heat tail water by utilizing a tubular membrane. The technological system comprises a cyclone sand remover, bag type filters, a tubular membrane filtering device, a washing tank, a washing ump, a degassing tank and an electric control device; two sets of the bag type filters are arranged; one bag type filter is usedand one bag type filter is standby, and the two bag type filters are alternatively used; the tubular membrane filtering device is divided into two grades; each grade comprises four tubular membrane filters which are arranged in parallel, three tubular membrane filters are used and one tubular membrane filter is standby; the system is provided with a thermometer, a pressure meter and a flow meter;the electric control device comprises a PLC (Programmable Logic Controller) and can realize online automatic backwashing of equipment and prevent fouling and blocking, so that stable operation of equipment is ensured. The technological system takes a tubular membrane as a core and integrates equipment including the cyclone sand remover, the bag type filters and the like to form a technology of treating the terrestrial heat tail water by utilizing a set of water treatment system; the technological system has the advantages of high integration degree, high automation degree, high treatment efficiency and long service life; water treatment can reach reinjection water quality requirements and the treatment cost of reinjection water is greatly reduced.

The invention discloses a double-pipe heat interchanger suitable for sewage with the high solid content. The double-pipe heat interchanger comprises an inner casing pipe used as a sewage channel, and an outer casing pipe providing a heat exchange medium channel. The inner casing pipe is located in the outer casing pipe. The section of the inner casing pipe is triangular, and the inner casing pipe is a triangular twisted pipe formed by spiraling and deforming the pipe wall in the pipe center axial direction. The double-pipe heat interchanger is suitable for sewage with the high solid content, dirt impurities in the sewage are not prone to scaling on the four walls of the sewage channel or blockage, and the heat exchange efficiency and continuous and stable operation of the heat interchanger are ensured; and the pipe pass and shell pass convective heat transfer efficiency of the heat interchanger is quite high, so that the heat interchanger has high heat transfer enhancement performance, and the power consumption of a process pump is small.

The invention discloses a biogas slurry concentration system and method. The biogas slurry concentration system comprises an original biogas slurry tank, an original conveying pump, an adjusting tank, a fine rack, an adjusting conveying pump, a primary raw water tank, a concentrated water tank, a primary conveying pump, a primary precise filter, a primary filtering membrane, a secondary raw water tank, a secondary conveying pump, a secondary precise filter, a secondary high-pressure pump, secondary material membrane separation equipment, a third raw water tank, a third conveying pump, a third precise filter, a third high-pressure pump, third material membrane separation equipment, a fourth raw water tank, a fourth conveying pump, a fourth precise filter, a fourth high-pressure pump, fourth high-pressure material membrane separation equipment, a fifth raw water tank, a fifth conveying pump, a fifth precise filter, a fifth high-pressure pump, fifth high-pressure material membrane separation equipment, a sixth raw water tank, a sixth conveying pump, a sixth precise filter, sixth material membrane separation equipment, an acid conveying pump, an acid precise filter and non-volatile acid solution storage equipment. By adopting the system, grading and high-magnification concentration of effective components in biogas slurry are achieved, and ammonia nitrogen can be completely extracted.