288results about How to "Avoid re-entry" patented technology

An apparatus and method are disclosed for decreasing the spectral bandwidth of a semiconductor laser, such as a vertical cavity surface emitting laser.

The utility model discloses a robot navigation system and a navigation method. The robot navigation system comprises a navigation network which is formed by a plurality of wireless access points, a wireless communication module which is used for transferring data and collecting the intensity sequence communicated with the wireless access points, a sensor which is used for checking that the robot meets barriers or not, and a position server which is used for storing the referenced intensity sequence and running the intricate position arithmetic, and is characterized in that the position server is connected with the wireless communication module and interacts with the navigation network. The navigation method is characterized in that the robot judges the next target position until reaches the destination by comparing the intensity sequence collected in real time with stored reference intensity sequence of the position points; when the robot meets barriers, the robot records and demarcates the intensity sequence of the position in order to avoid entering the position again, therefore achieving intellectual learning; the robot can upload the correlative information to the position server and achieve the assistant navigation position by the help of the database of the position server and the position arithmetic. The utility model is not likely to be affected by the environment and also has the advantages of low cost of maintenance.

A cyclone separator assembly comprises a cyclone separator that removes large particles of dirt from a working airstream as it flows through the cyclone separator, and the separated large particles of dirt are deposited into a dirt cup. The cyclone separator assembly further includes a fine particle separation member comprising a plurality of apertures for separating fine particles of dirt from air in the cyclone separator or the dirt cup.

The invention discloses a tissue hemostasis clamping device, comprising a clamp, a releasing mechanism, a drawing assembly, a handle assembly and an external sheathing canal, wherein the clamp comprises a clamping plate and a connector integrally fixed with a pull-push end of the clamping plate; the pull-push end of the clamping plate and the connector can slide back and forth in a tightening pipe, the connector is buckled with the tightening pipe by a loose-preventing mechanism; the front part of the tightening pipe is provided with a stopper; a clamping arm of the clamping plate is provided with a closing stop; the releasing mechanism comprises a pull-push pipe, wherein the front part of the pull-push pipe is connected with the connector in a manner of connection failure when the front part of the pull-push pipe bears the stress exceeding a predetermined tensile force, while the rear part of the pull-push pipe is fixedly connected with a drawing steel wire; the front part of the connection pipe is connected with the rear part of the tightening pipe by a slipknot, and the rear part of the connecting pipe is fixedly connected with a sheathing tube; and the slipknot connection of the connection pipe and the tightening pipe is relieved by a pull-push pipe through the releasing mechanism. With the adoption of the technical scheme, the device has advantages of simple and reasonable structure, stable and reliable clamping, possible repeated pre-clamping, small volume of the clamp and smooth appearance.

A method of reclaiming brine waste in a water softener having an inlet, a service water outlet, a wastewater outlet, and having a brine / rinse cycle in which brine solution is directed through a resin bed and to a drain, includes measuring a TDS or specific ion level of the solution exiting the wastewater outlet during the brine / rinse cycle, comparing the measured TDS or specific ion level with a preset value, and diverting the flow of water out the outlet to a reclamation location once the measured TDS exceeds the preset value. A waste reclamation unit includes a housing in fluid communication with the water softener and at least one waste reservoir, a compressor, a compressor coil, a control unit configured for sensing the introduction of liquid into the reservoir and for triggering the compressor; and a collection pan configured for collecting water condensing on the coil and preventing the entry of water into the waste reservoir.

The invention relates to a plant restoration technology for heavy metal-contaminated soil, specifically to a method for repairing heavy metal-contaminated soil by using oilseed rape-oil sunflower crop rotation technology. The method overcomes the problems of seasonal restriction, slow growth, low biomass of an overground part, low total absorption and accumulation amount of heavy metals, tolerance and enrichment capability to only one single heavy metal, bad economic benefits and poor comprehensive effects in practical application of plants used in conventional heavy metal-contaminated soil restoration technology. According to the method provided by the invention, oilseed rape and oil sunflower are planted in soil contaminated by compound heavy metals according to the natural growing periods of the oilseed rape and the oil sunflower, and conventional cultivation is carried out; the oilseed rape and the oil sunflower both grow normally in the contaminated soil, no obvious symptom of toxicity appears, and the outputs of the oilseed rape and the oil sunflower are not affected; and since the biomass of the overground parts of the oilseed rape and the oil sunflower is great, a great amount of various heavy metals can be absorbed and accumulated, and in particular, the contents of Cu, Zn, Cd and Hg in the plants of the oilseed rape and the oil sunflower are obviously higher than soil background values, reaching an enrichment level.

The invention provides a method for animal and plant-biochar synergistically restoring of petroleum-heavy metal polluted soil. Biological carbon base fertilizer is applied into the petroleum-heavy metal polluted soil and mixed evenly, and seasoning is conducted; earthworms are placed in the petroleum-heavy metal polluted soil to be bred after the seasoning is completed, then castor-oil plants are planted, and the castor-oil plants are removed overall after the harvesting of fruits of the castor-oil plants is completed; after the castor-oil plants are removed overall, the biological carbon base fertilizer is applied into the petroleum-heavy metal polluted soil again and mixed evenly, and seasoning is conducted; after the seasoning, earthworms are placed in the petroleum-heavy metal polluted soil to be bred, and then willows are planted; and the steps are executed circularly and repeatedly until the content of heavy metal in the soil is up to the safety standard. According to the method, the soil remediation effect is good; the combination of the biochar, animals and plants reinforces compound restoration and the effect is very obvious. In addition, secondary pollution to the soil is avoided.

Provided is an organic EL display which prevents infiltration of moisture into a picture element region and improves the reliability of the organic EL display. The picture element region (200) in which a plurality of picture elements are disposed in a matrix is formed on a device substrate (100), and each picture element of the picture element region (200) is provided with an organic EL device (203) and a driving transistor (204) to drive the device. Organic interlayer insulating films (216A, 216B) are formed on an upper layer of the driving transistor (204) but below a lower layer of the organic EL device (203). A sealing substrate (300) is adhered to the device substrate (100) via a sealing member (301) arranged on the peripheral region of the picture element region. The organic interlayer insulating films (216A, 216B) are divided by a dividing region (S) provided between the sealing member (301) and the picture element region (200).

The invention discloses a robot path planning method based on an improved ant colony algorithm. The method comprises the following steps: introducing a pre-planned path; adding inflection point parameters; and building a deadlock prohibition list. The method improves searching efficiency and effectively avoids the deadlock problem.

The invention provides a method for restoring heavy metal contaminated soil through an activating agent and microorganism reinforced plants. The method includes the following steps that firstly, the activating agent is added to the heavy metal contaminated soil, and the soil is tilled evenly and activated for 10 d to 20 d; secondly, complex microorganisms are inoculated in the activated soil, castor oil plants are planted for 1 to 2 periods, and one year is a period; thirdly, the castor oil plants planted in the second step are completely removed from the soil, the activating agent is added, and the soil is activated for 10 d to 20 d; fourthly, nightshade is planted in the soil activated in the third step for 2 to 3 periods, and one year is a period; fifthly, heavy metal in the castor oil plants obtained in the second step and the nightshade obtained in the third step is recycled; and sixthly, the first step to the fifth step are cycled till the content of the heavy metal in the soil reaches the standard. By the adoption of the method for restoring the heavy metal contaminated soil, the soil can be activated and improved, cost is low, contamination is small, and the heavy metal in the soil is efficiently removed.

The invention relates to a semi-wet static gas dedusting and purifying device and belongs to the technical fields of dedusting, waste gas treatment and environmental protection. According to the device, dust in gas flow is electrically charged by adopting corona electrodes parallel to the gas flow direction; the corona electrodes are respectively arranged between disk-type dust collecting poles; disks of the disk-type dust collecting poles are parallel to the gas flow direction and are continuously rotated under the action of a transmission shaft; the lower half parts of the disks are immersed in a water solution, liquid films are continuously produced on the disks along with the rotation; therefore, the capturing efficiency of PM2.5 (Particulate Matter2.5), even the particulate matter with the size below 2.5 is remarkably increased and the semi-wet static gas dedusting device is very suitable for indoor air purification.

The invention discloses a semi-wet electrostatic dust collector and belongs to the technical fields of dust removal, waste gas treatment and environment protection. According to the semi-wet electrostatic dust collector, dust in airflow is charged firstly by means of a pre-charger, and then the airflow is made to flow through round plate type dust collecting electrodes which are vertically arranged in parallel; the lower half portions of the round plate type dust collecting electrodes are soaked in electrolyte solutions; the round plate type dust collecting electrodes rotate continuously under the action of a transmission shaft; the disc surfaces of every two adjacent round plate type dust collecting electrodes are soaked in two separated solution grooves respectively, and the electrolyte water solutions in every two adjacent solution grooves are loaded with voltages with different electric potentials respectively; liquid films exist on the solution grooves continuously along with the continuous rotation of the round plate type dust collecting electrodes, and the round plates with different electric potentials are used for adsorbing dust with different chargers respectively and eluting the adsorbed dust into the electrolyte water solutions continuously. The semi-wet electrostatic dust collector is high in dust removing efficiency, air resistance is quite small, and the semi-wet electrostatic dust collector is extremely suitable for indoor air purification.

The invention provides a rolling brushing type gas dust-removing purification device and belongs to the technical field of dust removal, indoor air management and environment protection. According to the device, two layers of hairbrush rollers which are arrayed in parallel and are overlapped are adopted; the upper and lower layers of the hairbrush rollers rotate in opposite directions; bristles at the lower part of the lower-layer hairbrush roller is immersed into a water tank; bristles of the upper-layer hairbrush roller is wetted by spraying water; dust-containing gas flows through a gap between the bristles of the hairbrush rollers; and dust particles are washed by the bristles to be removed. The device has low gas resistance and a simple structure, and is very suitable for indoor air purification.

A safety device for a syringe needle, which includes a guide and a slidable member having a first portion that is configured to be slid along the guide and a second portion having a formation for a needle, that facilitates the shielding of the sharp point within said formation. A non-reusable syringe, which includes a plunger having a first part with one or more followers and a second part housing a guide.

The invention provides a method for restoring soil polluted by heavy metal through the synergy of biochar and plants. Cotton is continuously planted in the soil polluted by the heavy metal, biological carbon base fertilizer is applied into the soil while the cotton is planted, and cotton plants are overall removed after picking of the cotton is completed; willows are continuously planted after the cotton plants are overall removed, the biological carbon base fertilizer is applied into the soil while the willows are planted in each period, and the willows are overall removed after one period is completed; and the steps are executed circularly and repeatedly until the content of the heavy metal in the soil is up to the safety standard. According to the method, the soil remediation effect is good, and the environment is beautified when the soil polluted by the heavy metal is remedied; the method is high in practicability.

The invention provides a restoration method for heavy metal polluted soil of ore districts. Castor-oil plants are planted, biological carbon base fertilizer is applied into the heavy metal polluted soil of the ore districts at the same time, the biological carbon base fertilizer is mixed evenly and seasoning is conducted; biological carbon base fertilizer is applied into the heavy metal polluted soil again after the seasoning, and seasoning is conducted again; earthworms are placed in the heavy metal polluted soil to be bred after the seasoning; after the earthworms are introduced to the soil normally, willows are planted and biological carbon base fertilizer is applied into the soil at the same time, and the willows are removed overall after a certain period; and the steps are executed circularly and repeatedly until the content of heavy metal in the soil is up to the safety standard. According to the restoration method for the heavy metal polluted soil of the ore districts, the restoration effect for the heavy metal soil of the ore districts is obvious; the restoration period is short, and secondary pollution to the soil is avoided.

A safety device for a syringe needle, which includes a guide and a slidable member having a first portion that is configured to be slid along the guide and a second portion having a formation for a needle, that facilitates the shielding of the sharp point within said formation. A non-reusable syringe, which includes a plunger having a first part with one or more followers and a second part housing a guide.

The invention relates to the technical field of plant remediation of oil-contaminated soil, in particular to a method for treating and remediating oil-contaminated soil by using gaillardia aristata pursh flower plants. The method is to plant gaillardia aristata pursh in oil-contaminated soil. When the total petroleum hydrocarbon concentration of the soil is 10,000mg / kg, the growth amount of the plants is not inhibited basically, and the gaillardia aristata pursh can effectively degrade the total petroleum hydrocarbon in the oil-contaminated soil through the combined functions of the developed roots and root microbes to reduce the total petroleum hydrocarbon content in the contaminated soil. When the gaillardia aristata pursh is planted for 90 days, the degradation rate of the total petroleum hydrocarbon content in the contaminated soil can reach 56.63 percent which is nearly 4 times a blank natural degradation rate which is 15.49 percent. This proves that the gaillardia aristata pursh has high oil contamination resistance and high total petroleum hydrocarbon degradation capability. Thus, the total petroleum hydrocarbon in soil can be effectively removed by planting the gaillardia aristata pursh in the oil-contaminated soil, and removing all plants and well treating the plants in a centralized manner after the plants are mature.

The invention relates to the field of plate processing and particularly discloses a plate bending device. The device comprises a frame, a pressing hydraulic cylinder, a cutting mechanism, a workbench,a punch and a punching hydraulic cylinder, wherein a punching channel is arranged in the workbench; a fixing seat is fixed on a push rod of the pressing hydraulic cylinder; the cutting mechanism comprises a rotating shaft, a rotating disk, a motor, a collecting box and pressing blocks; the rotating shaft penetrates through the pressing block; a discharge hole is formed in the collecting box; a filter screen is fixed in the collecting box; a cavity communicated with the collecting box is arranged in the rotating shaft; sliding cavities are arranged in the pressing block; pistons are arranged in the sliding cavities; piston rods are fixed on the pistons; cams are fixed on the rotating shaft; first springs are arranged in the sliding cavities; air inlet check valves and air outlet check valves are fixed on side walls of the sliding cavities; sliding-out grooves are arranged in the rotating disk; second springs and polishing pieces are arranged in the sliding-out grooves; and suction holes are formed in two sides of the rotating disk. According to the scheme, the device has the advantages that chips generated by cutting can be cleaned in time and scratches on plates are avoided.

A system and method of assembling flanged duct sections, using large sheet metal screws through opposing inserted corner plates. The large screws are threadedly inserted fully through the corner plates of a first duct section and hold perpendicular thereto for guiding alignment with the mating duct section. The screws hold the duct sections apart to allow aligning them without fluid sealant or tape gasket material on one of the duct sections contacting the other. The screws are then threadedly engaged with the corner plates of the mating duct section, bringing the duct sections together with a leak resistant seal therebetween. Optional hanger brackets can be placed between the corner plates before assembly, and additional screws used to deform the flanges and corner plates about the brackets to compress the sealant or gasket thereabout.

The invention relates to an air monitoring and classified sampling method and a device. Through air suction, air with a certain flow velocity passes by nuclear pore filter membranes which have three levels of different apertures of 10mum, 2.5mum and less than 0.3mum, so particles in the air are accurately trapped on the nuclear pore filter membranes in a classification way according to the sizes of the particles. The device which realizes the method comprises an air suction device, a flow controller and a nuclear pore membrane filter. The device can accurately trap the particles which have different diameters in the classification way through the nuclear pore filter membranes which have three levels of different absolute apertures, the particles are all trapped on the surfaces of the nuclear pore filter membranes and can be effectively eluted, so the further accurate composition and content analysis is benefited, and the effectiveness of a monitoring result is improved; and the nuclear pore membrane filter is a detachable disposable filter which is low in price, simple to operate and convenient to use.

The invention provides a method for restoring sludge land heavy metal contaminated soil. The method comprises the following steps: applying charcoal base fertilizer in the soil, uniformly mixing the soil with the charcoal base fertilizer, carrying out ageing, after the ageing, putting earthworms in the soil for cultivation, after introducing the earthworms in the soil normally, planting castor-oil plant and applying the charcoal base fertilizer in the soil simultaneously, after a certain period of time, removing the castor-oil plant overall, putting earthworms in the soil for cultivation, after introducing the earthworms in the soil normally, planting willows and applying the charcoal base fertilizer in the soil simultaneously, after a certain period of time, removing the willows overall, and repeating the steps in a circulating manner until content of heavy metal in the soil reaching the safe standard. With adoption of the method, the restoring treatment effect to the sludge land heavy metal contaminated soil is ideal, the treatment time is short, the territory applicability is wide, and secondary pollution to the soil can be avoided.

The present invention provides a mill grain flow circulatory system external dedicated mixing separator for grinding and polishing, including a mixing barrel, an agitating vane set in the mixing barrel, the agitating vane is driven by the motor mounted on the top of the mixing barrel, the top of the side wall of the mixing barrel is set with a feed inlet, the lower is set with an outlet, the base wall of the mixing barrel is set with a drain, the inner chamber of the mixing barrel is connected with the drain, the outer wall of the base wall of the mixing barrel is equipped with a permanent magnet, the lower of the side wall of the mixing barrel is set with a reflux inlet, the beneficial effect of the invention is : (1) the grinding aid efficiently cycle use; (2) reducing the harm of the system equipment of the metal grain and damage of the workpiece precision; (3)convenient drain at time and cleaning the mixing barrel.

The invention provides a restoration method for industrial waste land soil heavy metal contamination. Charcoal base fertilizer and a microorganism complex microbial inoculant are applied to heavy metal contaminated soil, and the charcoal base fertilizer, the microorganism complex microbial inoculant and the soil are evenly mixed and then aged; after ageing is over, a willow is planted, and the willow is overall removed after a certain period; after the willow is overall removed, charcoal base fertilizer and a microorganism complex microbial inoculant are applied to the soil where the willow is planted again, and the charcoal base fertilizer, the microorganism complex microbial inoculant and the soil are evenly mixed and aged; after ageing restoration is over, ricinus communis is planted, and the ricinus communis is overall removed after ricinus communis fruits are harvested; and the steps are executed cyclically and repeatedly until the content of heavy metal in the soil reaches the safety standard. The restoration method is good in soil governing effect, fast in effect taking, short in time, capable of beautifying the environment while the heavy metal contaminated soil is governed and high in practicability.

The embodiment of the invention relates to the technical field of projection, in particular to a laser projection device. On the one hand, the laser projection device is used for improving the dust prevention degree of dust sensitive parts inside the laser projection device; and on the other hand, the laser projection device aims at improving the heat dissipation efficiency of a heat source part inside the laser projection device. In the embodiment, a laser source part externally comprises a sealing shell, and the dust prevention degree of the laser source part is improved. Further, heat produced by the laser source part and heat produced by a laser machine part are both guided into a heat centralizing module through heat guide tubes, the heat on the heat centralizing module is dissipated through heat dissipation modules in a centralized mode, the purpose of dissipating the heat of the laser source part and the laser machine part is achieved, direct heat dissipation conducted on the laser source part and the laser machine part is not needed in the process, and the problem that dust is brought to the laser source part and the laser machine part in the heat dissipation process is prevented. In addition, due to the fact that the heat on the heat centralizing module is dissipated in the centralized mode, the heat dissipation efficiency is improved.

The invention discloses moisture-proof power equipment for intelligent monitoring of humidity, which includes a cabinet body, one side of the cabinet body is set as a jacket plate, and the jacket board sequentially includes first The hollow plate, the sponge plate connected with the first hollow plate, the second hollow plate connected with the sponge plate, the heat conduction plate connected with the second hollow plate, the heat conduction plate is inserted with the hollow hole communicating with the second hollow plate An air guide tube, the air guide tube communicates with the vacuum pump outside the cabinet, and at least two heating sheets are installed inside the heat conducting plate. In the present invention, by modifying the mechanism of the side wall of the cabinet, the cabinet wall can dehumidify the interior of the cabinet in a concentrated manner, and the high water absorption of the sponge is used to firmly absorb the moisture on the sponge board to prevent the moisture from re-entering Inside the cabinet, the dehumidification efficiency is improved.

A combined cutting blade and heat bar for use with a vacuum packaging device having a lid for sealing over the cavity of a base is disclosed. The cutting blade and heat bar are connected to one another and movable via a single actuating mechanism mounted to the lid. In use, in one step the combined mechanism is lowered with the heat bar unheated and the cutting element cuts slits in the bag for evacuation of the air. After air evacuation, the combined mechanism is lowered with the heat bar heated, melting the bag closed behind the slitted area of the bag.

An optical integrated circuit comprises optical waveguides formed by sequentially stacking a lower cladding layer, a core layer and a upper cladding layer on a substrate, grooves formed by etching the upper cladding layer, the core layer and all or parts of the lower cladding layer close to a end section of the optical waveguide to intercept light transmitted through the core layer of the optical waveguide or to couple light into the core layer, a plurality of bonding pads formed around the groove, micro-mirrors which is inserted into the grooves and cemented thereinto, and have at least one slanted side surface inclined in a range of 30° to 60° with respect to the bottom surface to reflect a light which exits horizontally from the core layer to the groove and turn the path of the exited light vertically toward the upper side of the groove or conversely to reflect light which emitted vertically from an upper side of the groove and turn the path of the emitted light horizontally to couple into the core layer, and active optical elements bonded over the grooves by bonding pads and emits light toward the slanted surface of the micro-mirror or conversely, receives light reflected by the micro-mirror. Such a PLC based optical integrated circuit and a method of manufacturing the same provides a low-cost manufacturing of optical integrated circuits and high quality mirrors for vertical optical coupling scheme.

The invention provides a rotary electrochemical continuous hardness removal device. The rotary electrochemical continuous hardness removal device comprises a treatment tank, an electrochemical hardness removal assembly and a cleaning assembly. The electrochemical hardness removal assembly comprises a cathode plate and an anode plate, the anode plate is arranged in the treatment tank and located below the liquid level of the circulating cooling water, the cathode plate is rotatably arranged above the treatment tank, and the bottom of the cathode plate is inserted below the liquid level of the circulating cooling water. The cleaning assembly comprises a cleaning cutter set, a collecting slide way and a collecting groove, and the cleaning cutter set is arranged above the cathode plate. One end of the collecting slide way is connected with the cleaning cutter set, the other end of the collecting slide way is connected with the collecting groove, and falling scale can be guided into the collecting groove through the collecting slide way. According to the rotary electrochemical continuous hardness removal device, the cathode plate can be cleaned in the working process, so that the working efficiency of electrochemical hardness removal treatment is improved, and the time and labor cost is reduced.

The invention provides a plastic material forming, cooling and cutting system. The plastic material forming, cooling and cutting system comprises an extruder. A conveying belt is arranged at an extruder outlet. A traction conveying mechanism is arranged at the end portion of the output end of the conveying belt. A deviation correcting mechanism is arranged at the output end of the traction conveying mechanism. A cooling forming mechanism is arranged at the output end of the deviation correcting mechanism. An air cooling mechanism is arranged at the output end of the cooling forming mechanism. A fixed-length cutting mechanism is arranged at the output end of the air cooling mechanism. According to the scheme, traction, conveying, deviation correcting guiding, cooling forming and fixed-length cutting are integrated, a whole is formed, plastic material assembly line production is achieved, and the defects that existing equipment is in disorder, and many processes exist are overcome.