56results about How to "Guaranteed Effective Utilization" patented technology

The invention discloses an electrostatic spraying type unmanned helicopter pesticide applying system. The system comprises an unmanned helicopter having a landing gear, a supporting frame, a storage battery, a high voltage electrostatic generator, an electric diaphragm pump, a pesticide box and two sets of electrostatic spraying devices, wherein the supporting frame and the landing gear are fixed; the storage battery, the high voltage electrostatic generator, the electric diaphragm pump and the pesticide box are fixed on the supporting frame; the electrostatic spraying devices are symmetrically arranged on both sides of the unmanned helicopter; and a liquid outlet of the pesticide box is communicated with a liquid inlet of the electric diaphragm pump, and a liquid outlet of the electric diaphragm pump is communicated with the liquid inlets of the electrostatic spraying devices by a tee joint respectively. The system has the advantages that the size of the sprayed charged droplets is quite small, so the droplets are high in deposition effect and uniformly distributed, in particularly, the droplets can be attached to the back surfaces of leaves of plants, the effective utilization rate of pesticide is guaranteed and the drift loss of pesticide is lowered; and the spraying amount can be remotely controlled, so the spraying amount of the system can be changed along with the change of the flying speed.

The invention provides a video downloading system. The video downloading system comprises a data analysis unit, a detection unit, a downloading unit, a storage unit, a data comparison unit, a setting unit and a terminal, wherein the data analysis unit is used for ranking the continuity degrees of videos played and downloaded by a user; the detection unit is used for carrying out video updating detection according to the ranks; the downloading unit is used for downloading corresponding updated videos and storing the videos to the storage unit; and the data comparison unit is used for comparing data in the data analysis unit and the storage unit, reminding the user of timely deleting or automatically deleting the played videos by virtue of the setting unit and also reserving the videos that the user loves. The video downloading system has the advantage that convenience and rapidness are realized, management is facilitated, effective utilization of storage space is guaranteed, and user experience is improved.

The invention discloses a steel wire rope picking waste acid and high zinc and lead-containing sludge co-disposal system and process and belongs to the technical fields of environmental protection and wastewater treatment. The steel wire rope picking waste acid and high zinc and lead-containing sludge co-disposal system disclosed by the invention comprises a mud acid stirring and dissolving device, a lead and zinc removal device, a flocculating agent preparation device, a hydrogen sulfide absorption device and a lead and zinc precipitation separation device, wherein the mud acid stirring and dissolving device is connected with the lead and zinc removal device through a pipeline; and the lead and zinc removal device is connected with the flocculating agent preparation device, the hydrogen sulfide absorption device and the lead and zinc precipitation separation device through pipelines. The steel wire rope picking waste acid and high zinc and lead-containing sludge co-disposal process disclosed by the invention comprises the following steps: stirring and dissolving mud acids, removing lead and zinc, preparing polyferric flocculants, purifying hydrogen sulfide tail gas and performing lead and zinc precipitation separation. According to the invention, steel wire rope picking waste acid and high zinc and lead-containing sludge co-disposal can be realized, the elements such as zinc and lead can be effectively removed, and industrial products with high additive values are prepared.

The invention relates to a data recovery method, data recovery equipment and a distributed storage system. The data recovery method comprises the following steps: when a distributed storage system loses three node data, data of an objective data storage node in the three node data is recovered according to data of a check node and a data storage node which are not lost, and the objective data storage node is determined according to the symmetry of lost data; residual lost data is recovered in a degraded manner according to data of the objective data storage node which is recovered. According to the embodiment of the invention, the check data is adopted to perform data recovery, so that the effective utilization rate of distributed systems, such as a cloud storage space, is guaranteed to meet the performance requirements of the distributed storage system; the objective data storage node to be recovered at first is determined according to the symmetry of lost data, and the lost three node data are recovered according to the check data and the not-lost data, so that the data recovery performance of the distributed storage system which loses three node data is improved.

The invention discloses a 20000-ton-annual-yield production technique of trimethylolpropane by a calcium method, which is divided into condensation, filtration, evaporation, calcium separation and rectification. The production technique is characterized by comprising the following steps: by using n-butyl aldehyde and formaldehyde as raw materials and industrial calcium hydroxide as an alkaline catalyst, carrying out condensation and formic acid neutralization reaction to obtain a trimethylolpropane crude product reaction solution containing byproducts ditrimethylolpropane and calcium formate;in the filtration process, separating out solid-phase residues from the reaction solution in a horizontal spiral centrifugal filtration mode; evaporating with a climbing-film evaporator, and sending the evaporative condensate back to the condensation technique; after entering the settling tank, continuously scraping calcium formate from the bottom of the settling tank, and recycling the calcium formate with a band filter; and carrying out rectification to obtain the trimethylolpropane product, wherein rectification column uses column refluxing and climbing film heating techniques, the deflector plate in the column is controlled, and meanwhile, a gas-liquid separator is mounted on a vacuum tube of the rectification column. The invention has the advantages of simple technical process, high labor rate, low production cost, energy saving and emission reduction.

The present invention relates to immobilized yeast cell sodium alginate-polylysine microcapsule preparing process. On the basis of original immobilized alginate cell, one great power microcapsule preparing instrument is adopted to make the sodium alginate solution with homogeneously mixed yeast cell under high voltage electrostatic field form homogeneously distributed liquid drops of controllable particle size in 100-500 micron and form micro bead with fixing calcium solution. The surface of the micro bead has one layer of microcapsule polylysine film formed via ion complexing reaction, and calcium in calcium alginate gel is replaced with sodium citrate solution to form liquefied liquid environment inside the microcapsule. The present invention is prepared under mild completely physiological condition of pH 5.0-7.4, 4-30 deg.c and no shearing and vibration. The preparation process has yeast cell activity 100 % maintained and the culture process has cell leakage less than 10 %.

The invention relates to a self-adaptive wind-solar complementary heating system and belongs to the field of green energy resource utilization. The self-adaptive wind-solar complementary heating system comprises a wind driven generator, a photovoltaic power generation module, a controller, a boosting unit, a storage battery and loads. The input end of the wind driven generator and the input end of the photovoltaic power generation module are connected with the controller. The output end of the controller is connected with the boosting unit. The boosting unit is connected with the storage battery. The boosting unit traces the maximum power point of output power of the wind driven generator and the photovoltaic power generation module. The storage battery is connected with at least one load. According to the self-adaptive wind-solar complementary heating system, the boosting unit is adopted and can achieve two kinds of power input with different natures, the circuit structure of a traditional multi-input converter is simplified, voltage gain is increased, voltage stress of a switching device is lowered, the generating efficiency is guaranteed, influences on the stability of the system and the effective energy utilization rate at low output power are avoided, and the problems that carbon emission is large, consumption is high and energy is not saved by the adoption of traditional energy resources through a heating method in the prior art are solved.

The invention provides an outlet housing for a range hood. The outlet housing comprises a lower housing connected with the range hood, an installation ring connected with an air outlet pipe, and valveblades capable of being turned over to be opened. The lower housing and the installation ring form an air outlet cavity of the outlet housing; an air inlet opening of the outlet housing is formed inthe bottom part of the lower housing; an air outlet opening of the outlet housing is formed in the top part of the installation ring; the valve blades are two valve blades rotating oppositely; the twovalve blades are connected into the air outlet cavity through a rotary shaft, and can be turned over to be opened or closed so as to connect or disconnect the air inlet opening and the air outlet opening; the two valve blades can form an opposite valve blade included angle ranging from 0 degree to 180 degrees; and the outlet housing outputs a corresponding detection capacitance value according tothe valve blade included angle. The two valve blades with different polarities can form a variable capacitance device, the outlet housing outputs the corresponding detection capacitance value according to the valve blade included angle, and the range hood can judge an open-close state of the valve blades according to the capacitance value detected in real time.

The invention discloses a process for sectionally reducing and leaching African heterogenite. The process includes the steps: in the first stage: performing reduction for longer than 2 hours, ball-milling the heterogenite, concocting the ball-milled heterogenite by the aid of water into ore pulp with needed solid-liquid ratio, heating the ore pulp to reach the needed temperature, and adding 0.5-1time of sodium sulfite or 0.4-0.8 time of sodium pyrosulfite or 0.4-0.9 time of hydrazine hydrate or hydroxylamine by weight of cobalt metals; in the second stage: performing leaching for 2 hours, adding 4 times of sulfuric acid by the weight of the cobalt metals after reduction, adding 0.2 time of sodium sulfite or 0.15 time of sodium pyrosulfite or 0.1 time of hydrazine hydrate or hydroxylamineby the weight of the cobalt metals, performing leaching for half an hour to finish leaching. The process has the advantages of less reducing agent loss, simplicity and low air environmental pollutionand cost.

The present invention relates to a slicer, a feeding device thereof and a slicing production line. The slicer comprises a rack, and a feeding mechanism and a cutting mechanism which are disposed on the rack. The feeding mechanism comprises a movable bin (103), a bottom plate (104) and a first drive device (11). The bottom plate (104) and the movable bin (103) form a material placing space, the bottom plate (104) is fixed on the rack (3), a material exit (102) of the material placing space is formed in the bottom plate (104) while a material entrance (101) of the material placing space is formed in the movable bin (103), the movable bin (103) is movably disposed on the bottom plate (104), and when moving on the bottom plate (104), the movable bin (103) pushes materials on the bottom plate (104) to move towards the material exit (102) formed in the bottom plate (104) and to reach the cutting mechanism through the material exit (102). The first drive device (11) provides power for the movable bin (103) to move on the bottom plate (104). Through split arrangement of the movable bin and the bottom plate, the slicer is simple in structure, convenient to feed and high in efficiency, quick-wear parts are reduced, manpower is saved, and personnel security is raised.

The invention discloses an evaluation device and an evaluation method for a hydrogen peroxide hydrogenation catalyst prepared by using an anthraquinone method. The evaluation device comprises a reactor, a hydrogen supply end, a nitrogen supply end, a super constant-temperature water bath, a material receiving end, a blowoff valve, an exhaust tube and a connecting pipe, wherein the reactor is provided with a circulation bypass tube, a three-way connection valve and a sand core filtering plate; gas quality flowmeter controllers for regulating and controlling gas flow are respectively arranged at the hydrogen supply end and the nitrogen supply end, and are connected with a port of the three-way connection valve of the reaction device through connecting tubes; the blowoff valve is connected with the reactor through the exhaust tube; a circulation heater is connected with the reactor through the connecting tube. The evaluation device has the advantages of being simple to operate, good in gas-liquid mixing effect, visible in reaction effect, high in safety, high in controllability and the like, and is applicable to rapid and accurate evaluation on hydrogenation catalysts in laboratories.

The present invention discloses a system and method of passenger flow management based on vehicle terminals. The system comprises a background management center and a plurality of vehicle terminals arranged in different vehicles; each vehicle terminal comprises a passenger flow statistics module, a central processing unit, a real-time clock, a location module and a terminal communication module; the output end of the passenger flow statistics module is connected with the central processing unit, the central processing unit is connected with the real-time clock, the location module and the terminal communication module, and the terminal communication module is connected with the background management center through a wireless network; the central processing unit is configured to analyze a station where a vehicle is located at present and transmit real-time time, the station where the vehicle is located and the number of passengers in the vehicle to the background management center according to information provided by the location module; and the background management center is configured to receive information uploaded by each vehicle terminal, perform classification storage of the passenger flow according to the time and the stations and realize passenger flow integration management. The system and method of passenger flow management based on the vehicle terminals realize integration statistics analysis and form management of the passenger flow.