14 results about "Spin filter" patented technology

The utility model discloses an electric filter and a dust collector with the electric filter, and the electric filter comprises a dust cup which is cylindrical and is hollow inside, and the outer wall of the dust cup is provided with an air inlet along the circumferential tangential direction; the cyclone assembly comprises a bracket connected to the interior of the dust cup and a motor arranged at the bottom of the bracket; the filter assembly comprises a filter body arranged at the bottom of the cyclone assembly and a bearing rotatably connected with the filter body and the cyclone assembly, and an output shaft of the motor is in driving connection with the filter body and used for driving the filter body to rotate relative to the support. According to the electric dust cup, the structure of the electric filter is improved, the filter can rotate at a high speed under the action of the motor, and garbage and hair can be thrown away in the rotating process of the filter, so that the garbage and the hair are not easily attached to the filter and are easy to clean, and the garbage and the hair enter a storage chamber more easily, and therefore, the separation efficiency of the dust cup is improved.

A cleaner is disclosed. A filter cleaning device of the cleaner may comprise a brush and a turbine. The brush may be disposed to be in contact with a filter unit provided inside a housing. The turbine is rotated by a flow of air. One of the filter unit and the brush is relatively rotated with respect to the other of the filter unit and the brush by the turbine. Through this, foreign substances accumulated on a filter can be cleaned by the brush.

The invention provides a CrBr3-based spin filtering magnetic tunnel junction, and belongs to the technical field of spin electronic devices. Two two-dimensional Van der Waals layered materials are adopted for construction, and the specific structure is that metallic 1T-phase multi-layer MoSe2 serves as a non-magnetic NM electrode, semiconductor double-layer CrBr3 serves as a tunnel magnetic barrier layer, and a symmetric sandwich structure of MoSe2 / double-layer CrBr3 / MoSe2 is formed; the lattice matching of the electrode and the barrier layer is realized through a cell expansion stacking design, and the interlayer magnetic coupling state of the double-layer CrBr3 is regulated and controlled through an external magnetic field; the semimetallic property of CrBr3 is induced by utilizing an interface charge transfer effect to form a'spin filter ', so that electrons are freely transported only in a PC state in a spin direction. The MoSe2 / double-layer CrBr3 / MoSe2 sf-MTJ designed by the invention has good application potential in the field of high-speed, low-power-consumption and miniaturized spinning electronic devices.

The utility model discloses a spinning filtering device for spinning processing, which comprises a filtering machine box, a movable filtering plate piece is arranged at the bottom end of the inner side of the filtering machine box in an inclined mode towards one side, and floating grooves enabling the movable filtering plate piece to move up and down are arranged at the positions, corresponding to the inner wall of the filtering machine box, of the two ends of the movable filtering plate piece. The movable filter plate obliquely moves up and down through the guide vertical rod and generates vibration, the generated vibration enables impurities for filtering the spinning solution to automatically move towards one side on the movable filter plate, and the impurities in the movable filter plate and the filter holes can be cleaned and move towards the oblique side in cooperation with front-back movement of the cleaning plate. Therefore, the impurities filtered through vibration are conveyed to the outside through the end, penetrating to the outside, of the movable filter plate in a vibration mode to be collected, then the impurities can be discharged outwards in time, and the problems that the movable filter plate is blocked by the impurities, and a scraper generates downward pressure to be attached to the interior of filter holes and cannot be cleaned are solved.

The present invention reduces dripping of oil, moisture, and the like from a resistance plate.　Provided is a mist collection filter, said mist collection filter comprising: a rotating filter 31a that has a hole 31a1 through which gas passes; and a resistance plate 31b which is provided on the reverse side from the intake-side surface of the rotating filter 31a, and which creates resistance for the gas passing through the hole 31a1, wherein the rotating filter 31a and the resistance plate 31b are attached to a driving rotation shaft and rotate.

A portable filter cleaning assembly is configured to retain a filter on support rod and allow the filter to spin from a spray of water. The spinning filter releases debris from the filter surface through centrifugal force. The assembly has drainage features to ensure proper drainage of water collected within the interior of the filter and enable proper spinning from the spray of water. The assembly utilizes a support rod with a bottom filter retainer that is conical in shape for engaging with the filter aperture. The bottom filter retainer may further have a bearing that enables the filter to rotate freely about the rod with very little force. The assembly may include a stand for securing the support rod on a hard surface, such as concrete or on an uneven lawn surface.

To improve the usability of the work equipment. [Solution] The cleaner 1, which is a work machine, comprises a main unit 11 having a motor 13, a fan 14 that rotates to generate airflow by receiving the driving force of the motor 13, and a first filter 15 attached upstream of the fan 14, and a dust collection unit 12 attached to the main unit 11 having an intake port 510 which is an inlet and an open end 501 which is an outlet. The dust collection unit 12 has a case body 50 which is a cylindrical outer wall part that defines a space S1 which is a swirling chamber in which the air entering from the intake port 510 swirls, and a filter housing part 41 which defines a housing space S2 which is a housing chamber for housing the first filter 15 between itself and the main unit 11. The inner diameter of the case body 50 is larger than the outer diameter of the filter housing part 41.

This invention provides a visible light responsive titanium dioxide photocatalyst, its preparation method, and its application. The photocatalyst has a core-shell structure or a heterojunction interface structure and includes the following components: matrix material: modified nano-titanium dioxide; modifying material: chiral carbon quantum dots; the chiral carbon quantum dots are grown in situ or grafted onto the surface of the matrix material through Ti-O-C chemical bonds or strong electrostatic interactions; the photocatalyst utilizes the spin filtering effect generated by the CISS effect of the chiral carbon quantum dots, so that the photogenerated electrons injected into the matrix and the remaining holes are in a spin-forbidden state, thereby inhibiting recombination; this invention uses physical laws rather than simple energy level matching to inhibit recombination, significantly improving the quantum efficiency; the long-lived electrons and holes can continuously generate active free radicals, effectively overcoming the difficult-to-degrade VOCs containing benzene ring structures such as toluene, and reducing the generation of intermediate products; the raw materials used are all inexpensive chemical products, free from heavy metal pollution, and suitable for large-scale industrial production.

The invention discloses a ferromagnetic metal / two-dimensional ferromagnetic semimetal heterojunction-based spin electronic device, which comprises a ferromagnetic metal electrode and a single-layer two-dimensional ferromagnetic semimetal material layer, the ferromagnetic metal is nickel (Ni) or cobalt (Co), the two-dimensional ferromagnetic semimetal is ferrous halide FeX2, X is Cl, Br or I, and the thickness of the ferromagnetic metal electrode and the thickness of the two-dimensional ferromagnetic semimetal material layer are smaller than that of the ferromagnetic metal electrode. The two are in edge contact or top contact to form a heterojunction, and the spin injection efficiency close to 100% can be achieved; on the basis of a Ni and ferrous chloride (FeCl2) heterojunction structure, hexagonal boron nitride (h-BN) is introduced as a two-dimensional tunneling barrier layer, and a Ni / FeCl2 / h-BN / FeCl2 / Ni Van der Waals magnetic tunnel junction device can be constructed. According to the structure, the tunneling current of complete spin polarization is reserved in the parallel magnetization direction, the transmissivity is remarkably reduced in the anti-parallel magnetization direction, and the TMR (Tunnel Magnetoresistance) exceeding 3000% can be realized. Through the heterojunction structure and interface configuration design, the spin transport is effectively regulated and controlled on the device level, and the device is suitable for a spin valve, a spin filter and a low-power-consumption magnetic tunnel junction memory.

A rotary filter for liquid / solid separation includes a trough for containing a suspension, and at least one disk non-rotatably connected to a main shaft. The at least one disk includes filter sectors that each include a structural element covered by a filter medium, and a duct connecting each filter sector to pipes arranged along the main shaft. The filter sectors include a first series separated from a second series. The main shaft includes first and second pipes that communicate with the first series and the second series, respectively. The rotary filter includes comb teeth arranged above a level of the suspension on either side of the at least one disk. The main shaft occupies a first angular position with the first series under the comb teeth and the second series above the comb teeth, and a second angular position with the second series under the comb teeth and the first series above the comb teeth.

The present invention provides a rotary filter (10) for liquid / solid separation of suspensions, the rotary filter comprising a tank (12), a spraying device (32), and at least one disc (14) non-rotatably connected to a main shaft (16), characterized in that: - each disc (14) comprises a first series (S1) of at least one filter sector (50), the first series being separated from a second series (S2) of at least one filter sector (50) by means of two non-filtration zones (54); - the main shaft (16) comprises a first tube (56) and a second tube (58), the first tube communicating with the first series (S1) of at least one filter sector (50) of each disc (14), the second tube communicating with the second series (S2) of at least one filter sector (50) of each disc (14); - the rotary filter (10) comprises comb teeth (102). The present invention also provides a filtration method.

The invention relates to a rotary filter (10) for liquid / solid separation of a suspension, comprising a trough (12), a spray device (32) and at least one disc (14) which is rotatably connected to a main shaft (16), characterised in that: - each disc (14) comprises a first series (S1) of at least one filtering sector (50) which is separated from a second series (S2) of at least one filtering sector (50) by two non-filtering zones (54), - the main shaft (16) comprises a first pipe (56) which communicates with the first series (S1) of at least one filtering sector (50) of each disc (14) and a second pipe (58) which communicates with the second series (S2) of at least one filtering sector (50) of each disc (14), - said rotary filter (10) comprises comb teeth (102). The invention also relates to a filtering method.

This invention discloses a spintronic device based on a ferromagnetic metal / two-dimensional ferromagnetic half-metal heterojunction, comprising a ferromagnetic metal electrode and a single-layer two-dimensional ferromagnetic half-metal material layer. The ferromagnetic metal is nickel (Ni) or cobalt (Co), and the two-dimensional ferromagnetic half-metal is ferrous halide FeX2, where X = Cl, Br, or I. The two electrodes can form a heterojunction through edge contact or top contact, achieving a spin injection efficiency close to 100%. Hexagonal boron nitride (FeCl2) is further introduced into the Ni and ferrous chloride (FeCl2) heterojunction structure. h Ni / FeCl2 / BN can be used as a two-dimensional tunneling barrier layer to construct Ni / FeCl2 / h A van der Waals magnetic tunnel junction device based on -BN / FeCl2 / Ni. This structure retains fully spin-polarized tunneling current in the parallel magnetization direction and significantly reduces transmittance in the antiparallel magnetization direction, achieving a tunnel magnetoresistance (TMR) exceeding 3000%. This invention achieves effective control of spin transport at the device level through heterojunction structure and interface configuration design, and is suitable for spin valves, spin filters, and low-power magnetic tunnel junction memories.

This invention collects oil and other such matter entering an exhaust duct.　This exhaust emission control device includes a forcibly rotated filter 10 and a housing 20 in which the filter 10 is rotatably incorporated. The filter 10 has a large number of holes 11 from a peripheral edge side to a center. The housing 20 has a substantially cylindrical shape covering a periphery of the filter 10 and is configured to be installed in a ventilation passage of an exhaust duct 1.