92results about How to "Avoid clogging" patented technology

The invention discloses a melt electrostatic spinning sprayer suitable for high-viscosity high-melting-point polymers. The melt electrostatic spinning sprayer mainly comprises a spinning spraying nozzle, a spinning spraying nozzle set, a sprayer sleeve, a plunger, a counterweight plate, a heating device, a temperature sensor and an elastic sealing ring. The spinning spraying nozzle is in threaded connection with the spinning spraying nozzle set, the upper portion of the spraying nozzle set is in threaded connection with the sprayer sleeve, the plunger is arranged in the sprayer sleeve, the upper end of the plunger is in threaded connection with the counterweight plate, the sprayer sleeve is fixed to a spinning machine frame through evenly-distributed bolt holes, the heating device and the temperature sensor are connected with a temperature control box, and the elastic sealing ring is arranged between the spinning spraying nozzle and the spinning spraying nozzle set. By means of the melt electrostatic spinning sprayer, the whole spinning spraying nozzle is heated through the spraying nozzle set, a spraying nozzle outlet can be heated, the spraying nozzle can be protected at the same time, the influence of high-voltage electricity on the heating device is avoided, and better spinning technology conditions can be acquired; because pressure-type feeding is adopted, high-viscosity melt spinning can be achieved, and a broader market is provided for melt spinning.

The invention discloses a mobile terminal and a middle frame of the mobile terminal. The mobile terminal comprises a shell, a sound cavity unit and a microphone unit, wherein the sound cavity unit andthe microphone unit are arranged in the shell; wherein the casing comprises a middle frame, and a sound cavity sound outlet hole and a microphone sound receiving hole are formed in the side wall ofthe middle frame; the sound cavity unit comprises a loudspeaker assembly, the sound outlet end of the loudspeaker assembly faces the sound cavity sound outlet hole, and the microphone unit receives sound through the microphone sound receiving hole. According to the invention, the problems of poor sound production effect of the loudspeaker and poor sound reception effect of the microphone caused byblockage of the sound outlet hole of the sound cavity and the sound reception hole of the microphone are solved, the sound production effect of the loudspeaker and the sound reception effect of the microphone are improved, and the game experience of a player is improved.

The invention discloses an efficient and environment-friendly slime separating device. The efficient and environment-friendly slime separating device comprises a shell bracket, a stirring dispersing groove, a second-time rotational flow groove and a third-time separating groove; the stirring dispersing groove, the second-time rotational flow groove and the third-time separating groove are all installed in the shell bracket; a feeding hopper is arranged on the upper surface of the shell bracket, and a variable frequency motor is arranged above the feeding hopper; a screw shaft is connected to the interior of the variable frequency motor and is installed in the stirring dispersing groove; the feeding hopper is connected to the upper end of the stirring dispersing groove; the bottom of one side of the stirring dispersing groove is connected with the second-time rotational flow groove through a pipeline, and a hydrocyclone is arranged on the pipeline; a water inlet pipe is arranged at theupper end of the second-time rotational flow groove, and a silt outlet is formed in the lower end of the second-time rotational flow groove; one side of the second-time rotational flow groove is connected with the third-time separating groove through a pipeline, and a section of shaft screen is arranged at the lower end of the third-time separating groove; a mud bucket is arranged below the shaftscreen; the screw shaft is arranged in the third-time separating groove, and the variable frequency motor is connected to one end of the screw shaft; and branchial-flake shaped metal sheets are arranged on the inner side of the mud bucket, and a mine material outlet is arranged on the other section of the lower end of the third-time separating groove.

The invention provides an internal explosion-proof device for a high-safety jaw crusher. Transmission rods are slidably mounted in the left end and the right end of a jaw plate wheel, and rotatably mounted in frame seats; spring seats are fixedly mounted on the outer surfaces of the frame seats, and bevel gear rods penetrate through the upper surfaces and the lower surfaces of the frame seats; push rods are attached to the inner side surfaces of the frame seats, and telescopic bags are attached to the tops of the push rods; discs are meshed with the top ends of the bevel gear rods; when the dust amount in the crusher body reaches the maximum, dust is absorbed through the telescopic bags, and then the push rods are pushed to move; the frame seats are extruded by the push rods to move outwards; therefore, the transmission rods are driven to move, and then meshed with the bevel gear rods; then, the bevel gear rods are driven to rotate together; when the dust amount is gradually reduced, the frame seats are moved inwards through the spring seats, and therefore the transmission rods are separated from the bevel gear rods; and thus, the purpose of automatically avoiding dust explosion according to the internal dust amount is achieved.

The invention discloses an industrial sewage filtering equipment with a convenient-to-clean filter element, which comprises a filtering box body, the filter element and a storage box. Supporting legs are welded to the lower surface of the filtering box body, the storage box is welded to the bottom end of the interior of the filtering box body, and the filter element is rotatably connected to the upper surface of the storage box; a first filter plate is embedded and fixed into the inner wall of the filter element, a second filter plate is fixed into the first filter plate, a third filter plate is fixed into the second filter plate, a feeding opening penetrating through the filter box body is formed in the upper surface of the filter element, a sealing cover is connected to the upper surface of the feeding opening through a hinge, and a handle is welded to the upper surface of the sealing cover; the upper surface of the sealing cover is sleeved with a feeding hopper, a fixing rod is welded to the bottom end of the interior of the storage box, a first telescopic outer rod is movably inserted into the upper surface of the fixing rod, a telescopic outer plate is fixed to the top end of the interior of the storage box, and a telescopic inner plate is movably inserted into the outer end face of one side of the telescopic outer plate. The filter element is convenient to clean.

The invention relates to a degradable anti-clogging underground drip irrigation pipe and a manufacturing method thereof. The degradable anti-clogging underground drip irrigation pipe is characterized by comprising a drip irrigation pipe, and a plurality of irrigation emitters are arranged on the inner wall of the drip irrigation pipe at intervals; drip irrigation ports are arranged on the drip irrigation pipe in the positions corresponding to water outlets of the irrigation emitters; each irrigation emitter comprises an upper irrigation emitter piece and a lower irrigation emitter piece buckled together; two grid water intake regions are arranged on the bottom face of the upper irrigation emitter piece at intervals, one set of grid water intake ports are arranged in each grid water intake region, and one circle of roundabout and zigzag flow passage is arranged on the periphery of each grid water intake region; one sides of the two circles of roundabout and zigzag flow passages are communicated via a first-stage flow passage, and the first-stage flow passage also communicates the two grid water intake regions; the other sides of the two circles of roundabout and zigzag flow passages are communicated via a converging flow passage, and a pressure compensating region is arranged in the converging flow passage; a water outlet is arranged on the lower irrigation emitter piece in the position corresponding to the pressure compensating region; and a pressure compensating piece is arranged between the pressure compensating region and the water outlet, and the pressure compensating piece is fixed on the inner edge of the pressure compensating piece via two points.

The invention discloses a mine-used pleat type metal screen filter cylinder, which comprises a filter screen (1), a mounting cover (2) and a sealing cover (3), wherein the mounting cover (2) and the sealing cover (3) are respectively arranged at the top and the bottom of the filter screen (1), a sealing gasket (4) is arranged at the upper part of the mounting cover (2), and the filter screen (1) and the mounting cover (2) are made of metal with good electrical conductivity and good wear resistance; the filter screen (1) is in a three-layer metal screen composite structure of an outer-layer intermediate screen (11), a middle-layer thick screen (12) and an inner-layer thin screen (13); the filtering surface of the filter screen (1) is in a deep pleat (15)-and-shallow pleat (14) trapezoid pleat type structure; and the outer surface of the sealing gasket (4) is wrapped with a layer of electrical conduction screen (5). The mine-used pleat type metal screen filter cylinder has the characteristics that the service cycle is longer, the inflaming retarding property and the antistatic property are higher, the dedusting efficiency is high, the safety explosive-proof grade is higher, etc.

The invention relates to the field of agricultural seeding machines, in particular to a seeding device and a seeder adopting the seeding device. The seeding device comprises a plurality of inter-cut transfer mechanisms in the discrete state, a transfer driving mechanism and an inter-cut execution mechanism, wherein the inter-cut transfer mechanisms are installed on a guide rail rack provided witha guide rail and matched with the guide rail, the transfer driving mechanism drives the inter-cut transfer mechanism to move along the guide rail, and the inter-cut execution mechanism is installed onthe guide rail rack and matched with the inter-cut transfer mechanism to release plant crops at the set positions. The inter-cut transfer mechanisms are discretely installed on the guide rail of theguide rail rack, and the problem of mutual interference is solved; due to changes of the motion speed of the inter-cut transfer mechanisms on the guide rail, feeding and discharging at the static state relative to the guide rail rack can be achieved, at the static state relative to the ground, seeds are sown into soil, the structure is compact, universality is good, and the seeding device is particularly suitable for interplanting and transplanting of narrow-ridge crops, and seeding of no-tillage fields or hills containing gravel.

The invention discloses a brazed cubic boron nitride superhard abrasive reaming and honing tool for hole machining of difficult-to-machine materials, comprising: a cutter bar and a cutter base; a processing part and a guide part are arranged on the cutter base, wherein the The processing department is composed of cutting part, finishing part and retracting part. The present invention adopts the cubic boron nitride abrasive sequence arranged in a blade shape and brazed with the tool matrix, which improves the holding strength of the bonding agent on the abrasive grains, prevents the abrasive from falling off prematurely, prolongs the tool life, and improves the tool life at the same time. The designability of the blade structure; the use of upper/lower linear cutting edges and spirally distributed chip removal grooves enhances cooling, lubrication and chip removal, which can effectively reduce the grinding force and temperature, suppress the generation of surface defects, and prevent tool surface clogging, further extending tool life.

The invention discloses an efficient and energy-saving boiler. The efficient and energy-saving boiler comprises a furnace body and a furnace cavity arranged in the furnace body, and is characterized in that, a combustion chamber is arranged at the bottom of the furnace cavity, a combustor is arranged in the combustion chamber, one side of the combustion chamber is provided with a fuel inlet, the fuel inlet is provided with a control valve, a slag outlet is arranged in the bottom of the combustion chamber, a smoke outlet is arranged in the upper end of one side of the furnace body, a smoke gas filter device is arranged on the smoke outlet, a fireproof layer is arranged on the inner wall of the furnace body, a cooling device is arranged between the furnace cavity and the smoke gas filter device, a partition plate is arranged between the smoke gas filter device and the cooling device, and the partition plate inclines. The efficient and energy-saving boiler has the advantages of being simple in structure and convenient to use, prolonging burning time of fuel due to the fact that a thermal insulation layer is arranged on the exterior of the furnace cavity, enabling the fuel to burn fully, playing a role in energy conservation and environment protection, and thereby protecting the environment.

The invention discloses a radiator dust cover. The radiator dust cover comprises a circularly rotatable soft mesh belt arranged on one side of a radiator, and further comprises a driving shaft and a driven shaft; the soft mesh belt circularly rotates around the driving shaft and the driven shaft in a reciprocating manner; further, the radiator dust cover comprises a brush arranged in a position close to the driving shaft and the driven shaft; and the hair of the brush is in contact with the soft mesh belt.

The invention relates to a ball serving device, and particularly relates to a table tennis ball serving device for sports training. The invention aims to solve a technical problem of providing a tabletennis ball serving device for sports training which is simple in structure, capable of adjusting the serving angle and convenient for training. The technical scheme is that the table tennis ball serving device for sports training comprises a base, annular sliding blocks, supporting legs, a u-shaped frame, a first cylindrical body, a first sliding block, a push plate, a feeding hopper, a first spring, a rack and the like; the top of the base is provided with an annular sliding slot at the middle, the annular sliding slot is internally provided with two annular sliding blocks, the top parts ofthe annular sliding blocks at the left and right sides are provided with the supporting legs, and the u-shaped frame is installed between the top ends of the left and right supporting legs. The tabletennis ball serving device for sports training can drive the supporting legs to rotate under the action a speed reduction motor so as to adjust the angle of the first cylindrical body and adjust theserving angle, can push a table tennis ball in the frame body to fall into the first cylindrical body for serving through a ball pushing device, and prevents the table tennis ball from falling into the frame body and being not served.

The invention discloses an extrusion filament forming device convenient for cooling for 3D printing, and relates to the technical field of 3D printing equipment. Aiming at the problem that the material extrusion hole diameter in an extrusion head cannot be adjusted, the following technical scheme is adopted: the device specifically comprises a base and an extrusion cylinder, wherein a fixed head is fixedly connected to the outer wall of one side of the extrusion cylinder, a connector is fixed to one end of the fixed head through a connecting part, two telescopic assemblies are fixedly connected to the circumferential outer wall of the connector, the extending ends of the telescopic assemblies are fixedly connected with one same pressing plate, and the bottom outer wall of the pressing plate and the circumferential outer wall of the connector are fixedly connected with one same air bag; and an extrusion head is arranged at one end of the connector, the circumferential outer wall of the extrusion head is fixedly connected with a connecting hose, the circumferential inner wall of the extrusion head is fixedly connected with a heat preservation layer and a heat insulation layer in sequence, and the inner wall of the heat insulation layer is fixedly connected with an annular bag. For the device, the thickness of extruded filaments can be flexibly adjusted, and thus low working efficiency caused by repeated replacement of the extrusion head is avoided.

The invention discloses a novel irrigation system for greenhouses. The novel irrigation system comprises a storage water tank and a conveying pipeline, wherein the conveying pipeline is fixedly mounted at a position at the upper end of the storage water tank; a control valve is arranged at the middle of the conveying pipeline; and a check valve is arranged on the left side of the control valve, onthe conveying pipeline, and a centrifugal filter is arranged at the other end of the conveying pipeline. According to the novel irrigation system disclosed by the invention, secondary filtration is performed through a Y-shaped filter and the centrifugal filter, so that internal liquid impurities are reduced, during watering, the blocking of a plurality of rotation watering nozzles can be effectively avoided, and the novel irrigation system is more convenient to use; the check valve on the conveying pipeline is used for performing backflow control, so that some trouble can be avoided, and thenovel irrigation system is more convenient to use; through four watering side pipes, distributary watering can be well performed; and the rotation watering nozzles are arranged at the upper part for watering, so that the watering is more uniform.

The invention discloses a water body sludge rapid cleaning system which comprises a displacement adjusting fixing frame and a ship body, the displacement adjusting fixing frame is installed on the side face of the ship body, a sludge digging and collecting device is installed on the displacement adjusting fixing frame, and a spiral feeding device, a smashing device, a sludge collecting box and a sludge discharging mechanism are all installed on the ship body. The sludge pump is arranged on the displacement adjusting fixing frame, a feeding port of the sludge pump is connected with the sludge digging and collecting device through a pipeline, the smashing device is arranged between a discharging port of the sludge pump and a feeding port of the spiral feeding device, a discharging port of the spiral feeding device is communicated with a feeding port of the sludge collecting box, and the sludge discharging mechanism is arranged at the bottom of the sludge collecting box. The sludge collecting head goes deep into the water bottom to achieve rapid collection of sludge, the sludge pump collects the sludge and sends the sludge into the smashing device to be preliminarily smashed, the spiral feeding device sends the sludge into the collecting box to be collected, sludge blockage in the conveying process can be avoided, the dredging speed is increased, and quantitative conveying of the sludge is effectively guaranteed.

The invention discloses an inserted-link type self-filtering adjustable douche which comprises an inserted rod and a shower nozzle arranged at the top of the inserted link. The inserted-link type self-filtering adjustable douche is mainly characterized in that: a passageway is arranged at the upper part of the inserted link along the central axis thereof, the top end of the passageway is connected with the shower nozzle by means of a gland, a water inlet used for connecting a valve is arranged at the corresponding position of the bottom end of the passageway, the axis of the water inlet is vertical to the central axis of the inserted link, and a filtering core is arranged in the passageway. The invention has the advantages that: the passageway and the inserted link are designed into an integrated structure, and the water inlet only needs to be connected with a master water supply pipe through the valve when the douche is used; the shower head is arranged at the top end of the inserted link, and the form of the shower nozzle can be selected according to use conditions; the inserted link can be entirely pulled out and withdrawn when the douche is inapplicable so as to prevent the influence on the service life of the douche from long-tern insolation and be also capable of effectively preventing being stolen; a filtering net is arranged at the tail end of the passageway, therefore, the nozzle blockage can be effectively prevented, and the using efficiency of the douche can be effectively improved.

The invention discloses a device and a method for measuring fine power amount and tar amount in high-temperature gas. The device consists of a gas sampling unit, a gas-solid separation unit and a gas-liquid separation unit. A method for measuring fine powder amount and tar amount in high-temperature gas consists of steps of gas back flushing, preheating, secondary gas back flushing, sampling, device stopping, and measurement of fine powder amount and tar amount. According to the device and the method, the powder amount and the tar amount in high-temperature gas can be measured effectively, the design of a gas-solid separation system and a gas-liquid separation system can be precisely guided, and the safely and stably continuous production of a gasification furnace, a coking furnace and a semi coke furnace can be realized.

The invention provides an energy-saving industrial boiler which comprises a boiler body, a feeding port is fixedly installed in the middle of the outer surface of the front end of the boiler body, a feeding channel is fixedly installed at the lower end of the feeding port, a chimney is fixedly installed in the middle of the outer surface of the rear end of the boiler body, a hearth is arranged in the boiler body, a boiler barrel is fixedly installed at the upper end of the interior of the hearth, a conveying belt is fixedly installed at the position, located below the boiler barrel, of the lower end of the interior of the hearth, and a combustor is fixedly installed in the middle of the interior of the conveying belt. The device can prevent waste accumulation on the feeding channel, can uniformly disperse wastes for combustion, conducts filtering and secondary combustion on discharged residual ash and unburnt residues in smoke, avoids waste caused by cleaning of waste due to insufficient combustion, prevents the unburnt residues from being sucked out of the boiler and damaging the external environment, and meanwhile can clean a filter screen and prevent the filter screen from being blocked.

The invention provides a rural domestic breeding mixed sewage treatment integrated system, and belongs to the technical field of water treatment. The system comprises a water collection well, an oil-separating tank, a contact anaerobic tank, a gravel bed, a regulating tank and a natural oxygen enriched soil purification tank which are sequentially connected by virtue of pipelines. The technical flow of the system comprises: mixed sewage flows through the oil separator, the contact anaerobic tank, the multi-stage gravel bed and the natural oxygen enriched soil purification tank, and is drained. According to the system, sewage natural flow can be implemented by reasonably laying sewage treatment facilities for villages distributed along slopes, external force is not needed, and operation cost is not generated; for flat-relief villages, sewage only needs once lifting in a submersible sewage pump, is treated in various treatment systems, and is drained. The integration technology has the advantages of convenient construction, simple operation, low operation cost, high treatment efficiency and the like, is easy to manage and maintain, and is suitable for rural areas with more breeding.

The invention discloses an artificial wetlands system for purifying roof rainwater containing washing wastewater. The artificial wetlands system comprises a rain and sewage diversion well, a water distributor, a wetland treatment area, a collector pipe and a flood discharge ditch which are connected in sequence, wherein a diverter valve is arranged in the rain and sewage diversion well; the water outlet of the rain and sewage diversion well is connected with the flood discharge ditch and the water distributor; the water distributor is arranged above the wetland treatment area; the collector pipe is arranged at the bottom of the wetland treatment area; and the wetland treatment area is composed of vertical filter layers. When rainstorm flowing into the rain and sewage diversion well has a high water level, the diverter valve is opened, and rainwater is discharged into the flood discharge ditch; when washing wastewater flowing into the rain and sewage diversion well has a low water level, the diverter valve is closed, and the washing wastewater enters the water distributor through the rain and sewage diversion well; and the washing wastewater vertically flows into the wetland treatment area through the water distributor, is separated and purified by the vertical filter layers in the wetland treatment area and then is collected by the collector pipe to gather in the flood discharge ditch so as to be discharged. The washing wastewater is subjected to proper treatment and then enters a rainwater pipe network system or is discharged into a river, so that pollution of the river is avoided.

The invention discloses a method for controlling the particle size of a compressed-leached material of zinc sulfide concentrate. With the adoption of the method, the operation conditions of compressing and leaching processes of the zinc sulfide concentrate are controlled, so that the problem of adjusting slot blockage is solved, a production system is kept to run continuously and stably, and the production efficiency of the system is increased. Compared with single additive, two leaching additives are adopted to ensure that the unit consumption of the additive is reduced to 1.5kg from 2kg in each ton of concentrates, and the decreasing amplitude is up to 25-30%, so that the production cost is reduced. With the addition of effective additives, the un-reacted concentrate is protected from being enveloped by fused sulfur in the leaching process, so that the concentrate can react more completely, the leaching rate is up to 98-98.5%, and the using ratio of the resource is increased.