38results about How to "Realize filtration and purification" patented technology

The invention discloses three-layer composite filter cloth which comprises a first filter cloth layer, a filter membrane layer and a second filter cloth layer which are sequentially arranged from top to bottom, wherein the filter membrane layer is a PTFE filter membrane or a PU filter membrane; the first filter cloth layer and the second filter cloth layer are formed by performing warp and weft weaving on chemical fibers by virtue of a loom; the warp and weft density is not less than 5 yarns per centimeter; and the warp yarns and weft yarns are made of polypropylene fibers, polyester, acrylic, PTFE, PPS, PVDF, P84 or aramid fibers. The filter cloth layers are arranged on two sides of the filter membrane layer, so that the problem that the wear resistance is poor when the filter membrane is contacted with particles is solved. Meanwhile, compared with the filter cloth in the prior art, the particles with the size of 0.1 micron to 10 microns can be filtered and purified under the condition that the density of the filter cloth material is not changed.

The invention discloses disinfection and ventilation equipment for environmental gas in a traditional Chinese medicine hospital, and relates to the technical field of ventilation equipment. The disinfection and ventilation equipment comprises a control box, an exhaust pipe, an air inlet pipe and a disinfection box fixedly connected to one side of the control box, the interior of the control box isfixedly connected with a transmission mechanism, and the interior of the disinfection box is fixedly connected with a disinfection mechanism; and the transmission mechanism comprises a motor, one side of the motor is fixedly connected with the middle of one side of the inner wall of the control box, and one end of a motor output shaft is fixedly connected with a worm wheel through a coupling. According to the disinfection and ventilation equipment for the environmental gas in the traditional Chinese medicine hospital, ventilation and disinfection are set into an integrated device through thedisinfection and ventilation equipment, so that impurities in gas can be filtered and purified during air exchange, meanwhile, disinfection water is used for atomization disinfection, fresh air further ensures the air circulation quality through arrangement of ultraviolet disinfection lamps, and the actual using demands of the traditional Chinese medicine hospital are met.

The invention relates to an adsorber for waste gas desorption treatment. The adsorber comprises a shell and a filter cylinder, wherein the shell is provided with a gas inlet and a gas outlet, the filter cylinder is detachably connected into the shell, can rotate in the shell, and comprises an inner cylinder and an outer cylinder, an annular space filled with an adsorption medium is formed betweenthe inner cylinder and the outer cylinder, a gas inlet space communicated with the gas inlet is formed between the shell and the outer cylinder, and a gas outlet space communicated with the gas outletis defined by the inner side of the inner cylinder. According to the invention, the filter cylinder is arranged in a detachable form, so that active carbon is convenient to replace; the filter cylinder can rotate in the shell, so that active carbon can be uniformly utilized to filter waste gas, and the phenomenon of hardened and compacted gas short flow is effectively avoided; and desorption andadsorption share the gas inlet and the gas outlet, ie., one set of gas inlet and outlet pipelines can be shared, so that the equipment integration is high, and the occupied area is small.

The invention discloses scale-proof water ring vacuum equipment. The scale-proof water ring vacuum equipment comprises a support base. A pump body is fixedly connected to one side of the top end of the support base through a fixing seat. A hood is fixedly arranged on the other side of the top end of the support base through bolts. A front end housing is mounted at one end of the pump body, and a rear end housing is mounted at the other end. Two gas inlet pipes are symmetrically arranged on one side of the pump body, and two exhaust pipelines are symmetrically arranged on the other side of thepump body. A coupling is mounted between the pump body and the hood. According to the scale-proof water ring vacuum equipment, a filter box is arranged, and the problem that dust is pumped into the pump body along with gas, consequently working fluid is doped with the dust, and the circulation of the working fluid is influenced is avoided; a quantum ring is arranged, a water inlet pipe is protected from being corroded, and the service life of the water inlet pipe is prolonged; and the hood is arranged, the noise pollution generated when a drive motor operates is lowered, a comfortable workingenvironment is brought to workers, and the service life of the drive motor is prolonged.

The invention discloses a controllable laminated aquaculture water treatment device and belongs to the field of aquaculture water treatment devices. According to the controllable laminated aquaculturewater treatment device, a laminated filter screen which is controllable in filter degree is formed through a top-layer one-way filter screen, a plurality of middle-layer one-way filter screens and abottom-layer one-way filter screen, on the one hand, the middle-layer one-way filter screens and the bottom-layer one-way filter screen can be properly combined according to the aquaculture water pollution degree, the filter precision of the filter screens can be adjusted to form a required laminated filter screen, and on the other hand, the laminated filter screen formed by the middle-layer one-way filter screens and the bottom-layer one-way filter screen can be separated layer by layer to lose the filter effect by means of detachment, and the middle-layer one-way filter screens and the bottom-layer one-way filter screen, which are arranged in single layer can be cleaned, pollutants accumulated on the surface of the filter screens can be automatically separated under waterflow, and a self-cleaning process is realized, so that the problem that filter plugging is difficult to clean in the prior art can be solved, the dredging state can be restored, and a high efficiency filter process of aquaculture water can be restored.

The invention belongs to the technical field of semiconductor sterilization, and particularly discloses a semiconductor thermoelectric sheet air sterilization and purification method and system. The method comprises the following steps: a semiconductor thermoelectric sheet is selected according to the air sterilization temperature and the output air temperature, a temperature range of the hot endof the semiconductor thermoelectric sheet after electrification comprises the air sterilization temperature, and a temperature range of the cold end comprises the output air temperature; and the hot end of the semiconductor thermoelectric sheet is arranged in an air sterilization and purification flow channel, the cold end of the semiconductor thermoelectric sheet is arranged in an air output flowchannel, and air is introduced into the air sterilization and purification flow channel, so that the air enters the air output flow channel after being sterilized and purified through the air sterilization and purification flow channel so as to be output after being cooled to the output air temperature. The system comprises the semiconductor thermoelectric sheet, the air sterilization and purification flow channel and the air output flow channel. According to the method and system, the characteristics of heating and refrigerating of the semiconductor thermoelectric sheet are fully utilized, the high-temperature sterilization of air is realized, the air temperature is reduced to the needed temperature, the sterilization effect is good, and the energy utilization efficiency is high.

The invention relates to the technical field of membrane filtration, and discloses a preparation method of a high-flux polytetrafluoroethylene composite nanofiltration membrane. The preparation methodcomprises the following steps: S1, carrying out activation modification on a hydrophobic polytetrafluoroethylene microporous membrane by utilizing sodium alginate to obtain a hydrophilic polytetrafluoroethylene microporous membrane; S2, carrying out surface modification treatment on the quartz glass fibers by utilizing a silane coupling agent; S3, grafting trihydroxy quaternary ammonium salt to the surface of the quartz glass fiber to obtain modified quartz glass fiber; S4, depositing the modified quartz glass fiber on a hydrophilic polytetrafluoroethylene microporous membrane by a standing adsorption method to form a fiber net so as to obtain a pretreated polytetrafluoroethylene microporous membrane; and S5, coating the surface of the pretreated polytetrafluoroethylene microporous membrane with a polyethersulfone membrane casting solution, and drying to form the membrane. In the preparation process of the polytetrafluoroethylene composite nanofiltration membrane, macromolecular organic substances can be prevented from permeating into the polytetrafluoroethylene composite nanofiltration membrane from cracks in the surface of the polytetrafluoroethylene microporous membrane to block membrane holes so that the water flux of polytetrafluoroethylene composite nanofiltration is improved.

The invention discloses a soft-shelled turtle breeding oxygen supply device, and relates to the technical field of soft-shelled turtle breeding equipment. The soft-shelled turtle breeding oxygen supply device comprises a breeding pond body, a breeding tank is formed in the breeding pond body, an oxygen supply tank is further formed in the breeding pond body, and the oxygen supply tank communicates with the breeding tank through a water delivery assembly; and an oxygen aeration pipe is arranged in the oxygen supply tank, and the oxygen aeration pipe is used for performing oxygen aeration treatment on water in the oxygen supply tank. The oxygen aeration pipe is arranged in the oxygen supply tank to perform oxygen aeration treatment on the water in the oxygen supply tank, and then oxygen-enriched water is conveyed into the breeding tank so as to realize the oxygen aeration treatment on the water in the breeding tank; compared with a traditional mode that water in the breeding tank is directly oxygenated through an aeration pipe, soft-shelled turtles bred in the breeding tank can be prevented from being disturbed, and growth and reproduction of the soft-shelled turtles are facilitated; and meanwhile, soft-shelled turtle excrement, food residues and sludge precipitated in the breeding tank cannot be aroused and diffused into water, the water body is kept clean, and the soft-shelled turtle breeding habit requirement is met.

The invention discloses a grain falling impact driven refined grain classificator which comprises a machine body. A slantways arranged clapboard is integrally connected into the machine body; guidingplates are correspondingly arranged on two sides in the upper end of the machine body; and a sieve plate is movably arranged between the two guiding plates. According to the grain falling impact driven refined grain classificator provided by the invention, the clapboard with a hopper structure is arranged in the machine body, and an impeller is arranged in the lower end of the machine body so as to rotate under the action of the grain falling impact; drag rods are arranged on two sides of the impeller by utilizing a secondary support, and rotary shaft handles are connected between the impellerand the drag rods, so that the upper drag rod can swing at a certain angle under the drive of the impeller and the rotary shaft handles; and a guide plate is arranged in the upper end of the machinebody, and the sieve plate connected with the drag rods is movably arranged on the guiding plates by utilizing springs, so that materials moved through the sieve plate and the clapboard drive the impeller to rotate, the impeller is driven through the drag rods so as to enable the sieve plate to move in a reciprocating way, and grains are filtered and purified by utilizing the gravitational potential energy of the grains.

The invention relates to a device in the field of air purification, in particular to an air purification device based on a biomass protein graphene nano composite material. The device comprises a shell. A purification cavity, a gas inlet cavity and a multi-stage filter cavity are sequentially formed in the shell from bottom to top and are separated through perforated plates. A base is arranged at the bottom of the shell. A purified gas outlet structure is arranged at the top of the shell and communicated with the multi-stage filter cavity. Graphene aerogel net columns are detachably arranged in the purification cavity, a circulating water cavity is formed outside the graphene aerogel net columns, a water inlet is formed in the lower portion of the circulating water cavity, and a water outlet is formed in the upper portion of the circulating water cavity. The three-dimensional macroporous graphene aerogel placed in the graphene aerogel net column is used for adsorbing impurities in air, and the air is adsorbed, circularly washed and purified in cooperation with circulating water washing.

The invention discloses an air purification auxiliary device for an old-fashioned coal stove. The air purification auxiliary device for the old-fashioned coal stove comprises a coal stove main body, aflue, a fixing mechanism, a connecting mechanism and a dust removal mechanism; the flue is arranged at a smoke outlet of the coal stove main body in the vertical direction; the fixing mechanism is arranged at the top end of the outer wall of the flue; the connecting mechanism is mounted at the top end of the flue; and the dust removal mechanism is arranged at the top end of the fixing mechanism and located above the connecting mechanism. The air purification auxiliary device for the old-fashioned coal stove has the advantages that the device aims at solving the problems that in the prior art,an old-fashioned coal stove is simple in structure, dust and waste gas generated after coal combustion are directly exhausted into air, pollution is more serious, the market retention amount of the old-fashioned coal stove is large, and the total replacement cost is high; the device can achieve filtration and purification of smoke generated after coal combustion of the old-fashioned coal stove; atmospheric pollution caused by direct discharge of smoke dust is avoided; the device can be expanded and used for the exterior of the old-fashioned coal stove; higher cost caused by replacement of a novel green anthracite stove is avoided; the cost is saved; and application and popularization are facilitated.

The invention discloses an environment-friendly water-jet loom waste water recycling device which comprises a motor, a waste water cylinder assembly is installed on the surface of the upper end of the motor, a rotating bucket mechanism is movably installed in the middle of the inner side of the waste water cylinder assembly, and the motor is started to drive a water stirring disc to stir waste water on the inner side of a water filter cylinder at a high speed; through periodical collision and contact between waste water and a cover net mechanism structure installed on the surface of the inner wall of the water filter cylinder, the waste water can be divided into multiple water flows through the water scraping openings, the water flows are guided into water inlet holes formed in the inner side of the rear guide plate through the front guide plate and then are communicated with the inner filter net through the water inlet holes, and broken lines in the waste water are effectively filtered out of the inner side of the inner filter net; then the wastewater flows back to the inner side of the water filter cylinder through a lower end gap between the rear wall shell and the front wall shell, and the operation is repeated, so that the wastewater is filtered and purified by the device.