Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

733results about How to "Not easy to block" patented technology

Rotary annular-seam spray nozzle and spraying device thereof

InactiveCN102039228AEasy ultra-fine atomizationUltra-fine atomization promotionSpray nozzlesLiquid spraying apparatusSpray nozzleFineness
The invention discloses a rotary annular-seam spray nozzle comprising a core seat, a rotary core and a rotary annular-seam spray hole, wherein a core cavity is arranged in the core seat, an inlet and an outlet which are communicated with the core cavity are arranged on the core seat, a core seat inlet is communicated with a pressure flow source, the rotary core can be sleeved into the core cavity in positioning and rotating modes and is concentric with the core cavity, a rotation-promoting flow path is arranged on the rotary core or/and the wall of the core cavity in order to mutually rotate the rotary core and the core cavity by using flow power, one end of the rotary core is penetrated into the core seat outlet, and the penetrating end forms the rotary annular-seam spray hole with the inner wall of the core seat outlet. The cross section of the spray hole of the rotary annular-seam spray nozzle is an annular seam, the annular seam and a diameter can be set to respectively and conveniently control the fineness and the flow of pressure spray and make liquid drop sizes more evenly and finely distributed. The rotary annular-seam spray nozzle has a self-cleaning function, is not easy to block and is in a self-closing dust-resisting type; the rotary annular-seam spray nozzle is arranged on a spray head body or the core seat of the rotary annular-seam spray nozzle is connected with the spray head body, the spray head body is communicated with the pressure flow source, and therefore, the spray device with the rotary annular-seam spray nozzle can be formed.
Owner:韩铁夫

Reverse osmosis water purification machine and reverse osmosis water purification system

The invention discloses a reverse osmosis water purification system which comprises a preprocessing device, a pressurizing device and a reverse osmosis membrane filtration device which are sequentially connected in series with a raw water passage, wherein a thick water branch and a clear water branch are arranged on the reverse osmosis membrane filtration device. The system also comprises a water quality detection device which is connected in series with the raw water passage, is arranged behind the preprocessing device and is used for detecting the TDS (total dissolved solid) value of raw water, an opening-adjustable flow valve arranged on the thick water branch, an adjusting device for adjusting the opening of the flow valve, and a controller for controlling the flow valve to keep first opening when the TDS value is not more than a preset value and controlling the flow valve to keep second opening when the TDS value is more than the preset value. According to the system, the waste of water resources can be effectively avoided and the service life of a reverse osmosis membrane can be effectively prolonged. The invention further discloses a reverse osmosis water purification machine provided with the reverse osmosis water purification system.
Owner:GREE ELECTRIC APPLIANCES INC

Biomembrane reactor, waste water treating system and method for treating waste water

The invention provides a biomembrane reactor, which comprises an outer cylinder with a water inlet and a water outlet provided at the bottom part; an inner cylinder arranged in the outer cylinder, two ends of the inner cylinder are communicated with the outer cylinder, the top of the inner cylinder is lower than the top of the outer cylinder; a filling material used for filling a bio-contact oxidation tank of the inner cylinder; a filter material used for filling the biological filter tank between the inner cylinder and the outer cylinder; an aeration apparatus provided at the bottom of the outer cylinder, the aeration apparatus is communicated with the inner cylinder. The invention provides a waste water treating system and a method for treating waste water. The biomembrane reactor provided in the invention has the functions of the bio-contact oxidation tank and the biological filter tank, waste water forms a circulation between the inner cylinder and the outer cylinder under the promotion effect of the aeration apparatus, and waste water passes through the filling material used for bio-contact oxidation tank and the filter material used for biological filter tank for a purifyingprocess, thereby the effect of treating waste water can be improved.
Owner:UNIV OF SCI & TECH OF CHINA

Anti-fouling and water-permeable brick with natural stone imitating effect and preparation method of anti-fouling and water-permeable brick

The invention provides an anti-fouling and water-permeable brick with a natural stone imitating effect and a preparation method of the anti-fouling and water-permeable brick. The anti-fouling and water-permeable brick comprises an anti-fouling and water-permeable surface layer and a water-permeable base layer, wherein the anti-fouling and water-permeable surface layer is prepared from raw materials in parts by mass as follows: 10-15 parts of cement, 0.5-2 parts of an aqueous adhesive, 65-75 parts of modified fine aggregate, 2-4.5 parts of water, 1.5-2 parts of a water-permeable agent and 3-8 parts of pigment; the water-permeable base layer is prepared from raw materials in parts by mass as follows: 15-25 parts of fly ash, 5-10 parts of cement, 10-20 parts of carbide slag, 5-15 parts of slag, 15-20 parts of construction waste, 2-4 parts of the water-permeable agent and 3-8 parts of water. A mass ratio of the anti-fouling and water-permeable surface layer to the water-permeable base layer is 1:(7.5-8.5), and the modified fine aggregate is prepared from one or more fine aggregate of granite debris, marble flakes, quartz sand and silica sand through modification. The anti-fouling and water-permeable brick has the advantages of being high in anti-fouling level, resistant to wear, good in water permeability, high in strength, low in cost and smooth in surface, achieving the attractive natural stone imitating effect and the like.
Owner:山东鑫旺节能建材有限公司

Filter screen mechanism and fruit and vegetable squeezing and grinding machine using same

The invention belongs to the field of a fruit and vegetable machine and particularly discloses a filter screen mechanism for a fruit and vegetable squeezing and grinding machine. The filter screen mechanism comprises an upper filter screen and a lower filter screen; a middle ring screen is also arranged between the upper filter screen and the lower filter screen; the middle ring screen is fixedly provided with a shielding ring; the shielding ring is provided with a plurality of notches; the notches are positioned in a mesh region of the middle ring screen; and the aperture of each mesh of the middle ring screen is respectively greater than those of each mesh of the upper filter screen and each mesh of the lower filter screen. The invention also discloses the fruit and vegetable squeezing and grinding machine utilizing the filter screen mechanism, which comprises the filter screen mechanism and a screw drive mechanism. The screw drive mechanism comprises a screw and a center shaft; the center shaft is connected with the screw; the screw is connected with a motor shaft; the screw is a spinning-cone-shaped sphere with a small upper part and a big lower part; the outer surface of the sphere is provided with a helix-shaped convex strip; the center shaft of the screw is coincided with a center shaft of the upper filter screen; gaps are formed between the edge of the screw and the inner walls of the upper filter screen, the middle ring screen and the lower filter screen; and fruits rotate along with the screw in the gaps to be processed. The filter screen mechanism and the fruit and vegetable squeezing and grinding machine have the advantage of multiple functions.
Owner:杭州富阳正易工贸有限公司

Diatomite-based low-cost ecological environment-friendly type flat ceramic membrane and preparation method thereof

The invention discloses a diatomite-based low-cost ecological environment-friendly type flat ceramic membrane. The diatomite-based low-cost ecological environment-friendly type flat ceramic membrane comprises a ceramic flat support body and a separating layer membrane coated an outer surface of the ceramic flat support body, the water outlet holes are arranged in the ceramic flat support body; an integral body of the ceramic flat support body is a flat plate, and each corner angle of the flat plate is designed as round corner. The invention also provides a preparation method of the diatomite-based low-cost ecological environment-friendly type flat ceramic membrane, which comprises the steps of preparation of a ceramic flat membrane support body and preparation of a separating flat ceramic membrane. The raw materials have the advantages of low cost and no toxicity, the ceramic membrane is the ecological environment-friendly type filter membrane, is easily decomposed after being discard, and secondary pollution on environment cannot be generated. The ceramic membrane has wide utilization scope, can be used for water processing and gas processing, and especially used for processing and purifying harmful gas due to indoor decoration and processing outdoor environment gas PM2.5.
Owner:安徽名创新材料科技有限公司

High-quality spray absorber for wet flue gas desulfurization

ActiveCN102764582AOvercomes easy crystallization and scalingNot easy to blockDispersed particle separationGypsumSulfur dioxide
The invention discloses a high-quality spray absorber for wet flue gas desulfurization. The absorber comprises an absorber cylinder body which is provided with a flue gas inlet channel and a flue gas outlet channel. A perforated screen plate, flue gas redistribution rings, slurry spray devices, a demister and a rotating-stream plate device are arranged horizontally from bottom to top between the flue gas inlet channel and the flue gas outlet channel. Inner side edges of the flue gas redistribution rings are in an undulate or serrated shape, and the rotating-stream plate device is composed of a plurality of evenly-distributed independent rotating-stream plate separators. According to the high-quality spray absorber for wet flue gas desulfurization, the problem of no flue gas flowing above the absorber close to the flue gas inlet section is solved, the phenomenon of the easy crystallization and scaling of the area is overcome, gas-liquid contact area is maximized, absorption reaction is effective, and the absorber is applicable to desulfurization of flue gas with high sulfur dioxide content. 'fog-drop particles' carried in the flue gas are eliminated to the maximum extent, chimney 'rain' phenomena are reduced greatly, and the content of fog-drop particles can achieve 60 milligrams/nanometer3. The absorber is wide in applicable range, and can be used for wet flue gas desulfurization in a double-alkali way, an acetylene sludge way, a lime-gypsum way and the like.
Owner:武汉华德环保工程技术有限公司

Large extraction high caving roof coal hydraulic support

InactiveCN101440711ACoal position is lowHigh coal recovery rateMine roof supportsSpelunkingArchitectural engineering
The invention relates to a top coal caving hydraulic bracket with large mining height. The hydraulic bracket comprises a base, upright posts, a top beam, a front beam, a shield beam, a tail beam and an insertion plate; the top beam is supported on the base through four upright posts; the front beam and the shield beam are hinged with the front end and the rear end of the top beam respectively; the shield beam is also connected with a connecting rod; the front part of the front beam is provided with a telescopic beam which is connected with the front beam through a telescopic beam jack; the front end of the telescopic beam is hinged with the rear part of a protective plate; one end of a protective plate jack is connected with the telescopic beam; the other end pf the protective plate jack is connected with the tail part of the protective plate; the front end of the tail beam is hinged with the shield beam; the other end of the tail beam is connected with the shield beam through a tail beam jack; and the insertion plate is positioned in the inside of the tail beam. The hydraulic bracket has the advantages that the hydraulic bracket has large mining height and high working resistance, can realize top coal caving and can also realize overall height mining once when the thickness of the coal is 4.5 meters.
Owner:ZAOZHUANG MINING GRP CO LTD

Vertical machining device and method for small-caliber PCCP

The invention discloses a vertical machining device and method for a small-caliber PCCP. The vertical machining device and method are suitable for small-caliber pipes, operation is convenient, and the sealing effect is good. The vertical machining device comprises a vertical inner die, an outer die and a pouring device. The inner die is provided with an axial straight slit penetrating through the inner die in the height direction, and two slit openings of the straight slit are fixedly connected with a movable door plate and a driven door plate respectively. The inner die is internally provided with a stretching and contracting device which comprises a drive shaft, a driven shaft, a support, a reduction gear set and at least three movable door plate driving mechanisms. According to the vertical machining device and method for the small-caliber PCCP, the stretching and contracting device and a locking device having the heights basically identical with the height of the inner die are used, wherein the heights of the stretching and contracting device and the locking device can be slightly smaller than the height of the inner die when being applied, and the stretching and contracting device is large in torque, high in evenness of force transmitted out from the driven shaft with the same rigidity and good in movement speed and synchronism. The locking device is transmitted through a screw rod, drives a sliding plate in linear movement and achieves locking of the movable door plate in the stretched state through a wedge mechanism.
Owner:JIANGSU JIANGYANG BUILDING MATERIAL MACHINERY

Portable liquid nitrogen filling device with automatic stopping function for high-purity germanium detector

The invention discloses a portable liquid nitrogen filling device with an automatic stopping function for a high-purity germanium detector. The portable liquid nitrogen filling device comprises a temperature measuring unit, an automatic control unit and a liquid nitrogen filling unit, wherein the automatic control unit comprises a 220V power supply, a start button, an alternating-current contactor, a temperature controller and an electromagnetic valve; the electromagnetic valve is arranged on an exhaust pipe of a liquid nitrogen pump; the two input ends of the electromagnetic valve are connected with an L phase and an N phase of the 220V power supply respectively through a contact KM2 and a contact KM3 of the alternating-current contactor; the electromagnetic valve is in a shut-down state when the output voltages of the contact KM2and the contact KM3 are switched on and is in a turn-on state when the voltages are switched off. By adopting the portable liquid nitrogen filling device, a temperature monitoring function is realized, the liquid nitrogen pump stops automatically when a Dewar tank is full of liquid nitrogen and the automatic control unit is irreversible when the temperature is higher than a set threshold value, so that the function of unattended operation is realized in a liquid nitrogen filling process.
Owner:NORTHWEST INST OF NUCLEAR TECH

Building roof construction process

The invention discloses a building roof construction process. A construction roof comprises a roof structure plate, a parapet wall and a roof surface layer, wherein the parapet wall is arranged above the roof structure plate, the roof surface layer is paved on the roof structure plate, a roof exhaust system is arranged on the construction roof and comprises a plurality of first horizontal exhaust pipes, the first horizontal exhaust pipes are respectively laid in a slope finding layer or a heat insulation layer in the roof surface layer, two ends of each first horizontal exhaust pipe are respectively connected with a vertical exhaust pipe, and the vertical exhaust pipes are embedded in the side walls of the parapet wall and a discharge flue or the side wall of an exhaust passage. The construction process of a construction roof comprises the steps of 1, surveying and setting out; 2, parapet wall, discharge flue and exhaust passage construction; 3, horizontal exhaust pipe positioning installation; 4, exhaust pipe connection; 5, roof surface layer construction; and 6, rigid protecting layer mesh division and caulking construction. The construction process has the advantages that the steps are simple, the operability is high, the realization is convenient, in addition, the work efficiency is high, the construction effect is good, and the construction quality of the construction forming building roof can be effectively ensured.
Owner:陕西建工集团有限公司 +1

Floor-type screening and crushing device

The invention discloses a floor-type screening and crushing device. A material supply belt conveyor (1) is connected with a feed inlet of a screening machine (3) through a material supply guide tube (2). A qualified material outlet of the screening machine (3) is connected with an inlet of a funnel-shaped discharge tube (6). An unqualified material outlet of the screening machine (3) is connected with a discharge outlet of a crushing machine (4) through an unqualified material discharge tube (7). The funnel-shaped discharge tube (6) and the unqualified material discharge tube (7) are partitioned through a partition baffle (8). The big-end-up funnel-shaped discharge tube is adopted for being connected with the qualified material outlet of the screening machine, the height of the funnel-shaped discharge tube is in direct proportion to the screening capacity and the floor height, large-grain-diameter unqualified materials mixed at the qualified material outlet of the screening machine can be subjected to secondary screening and crushing, and the screening area is enlarged. The floor-type layout is adopted, so that the installing space is narrowed; and coal materials collide with the walls of guide tubes under the effect of gravity, repeated screening and crushing are achieved, and the screening effect is good.
Owner:马琳
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products