395results about How to "Achieve the purpose of protection" patented technology

The invention discloses a method for extracting lithium hydroxide by salt lake brine. The method is characterized by comprising the following steps: firstly, removing calcium and magnesium ions in salt lake brine by adding sodium carbonate; concentrating the obtained brine with low lithium-magnesium ratio through ordinary electrodialysis to obtained concentrated brine; adding sodium carbonate to the concentrated brine and removing the calcium and magnesium ions again; adding sodium carbonate to obtain lithium carbonate through a multi-step crystallization method; preparing the lithium hydroxide by an electrolysis-bipolar membrane electrodialysis system after dissolving the lithium carbonate again. The traditional distillation process is replaced by ordinary electrodialysis, so that energy consumption is reduced, and the method is friendly to environment. In addition, the lithium hydroxide is produced by using an electrolysis-bipolar membrane electrodialysis technology, the defects of high energy consumption and low purity in the traditional lime method and electrolytic process are avoided, the capacity of the lithium hydroxide is improved, no waste residue is generated in the process, and the method is friendly to environment. Taken together, the method is simple to operate, low in energy consumption, friendly to environment, and expanded production is easy to achieve.

The invention discloses an automatic protection device of a photovoltaic solar cell panel. The automatic protection device comprises a solar cell panel and a bracket thereof, a solar cell panel protection curtain plate and a driving device thereof, and slide grooves formed in the two sides of the bracket of the solar cell panel, wherein a curtain plate supporting frame is arranged on the bracket of the solar cell panel; a hairbrush is arranged at the front end of the curtain plate; the bracket of the solar cell panel is arranged on a bracket capable of moving up and down, forwards and backwards; and the bracket of the solar cell panel can be used for adjusting the levelness of the bracket of the solar cell panel through an electric screw rod device and a slide way mechanism at the front part. A sensor provided by the invention can be used for detecting a signal of bad weather; and the curtain plate covers the solar cell panel so that the protection aim is realized. Particularly, an air speed signal is detected through an air speed sensor and a solar device is prone to be a leveled state by a control device through the electric screw rod device, so that damages of air pressure are reduced.

The invention relates to an anti-rut asphalt additive, a method for preparing the same and a method for using the same. Polyethylene resin and polypropylene resin are adopted for using simultaneously; and through the use of liquation, cutting, mixing and extrusion pelletization technology at high temperature, compatibility between the materials is improved so as to further improve high-temperature stability of an asphalt surface layer. In order to reduce material cost, waste polyethylene resin and waste polypropylene resin can also be used so as to achieve the aims of reducing cost, realizing recycling of waste and reducing environmental pollution simultaneously.

The invention relates to the field of electric vehicle connectors, and in particular relates to a novel electric vehicle connector plug with a convertible contact pin. The electric vehicle connector plug comprises a power supply plug and a changeover plug, wherein the power supply plug is provided with a power supply contact pin, the power supply contact pin is connected with a power supply cable; the changeover plug is detachably connected with the power supply plug, and the changeover plug is provided with a jack connected with the power supply contact pin, and a connecting contact pin electrically connected with the jack, and the connecting contact pin is used for inserting in the plug. The electric vehicle connector plug further comprises a current detector electrically connected with the changeover plug, a temperature detector electrically connected with the changeover plug, wherein the the current detector is a current detection resistor and can be used for detecting the current system of the access current; and the temperature detector is a thermosensitive resistor and can be used for detecting the temperature of the changeover plug. The electric vehicle connector plug has the beneficial effects that the changeover plug is added to detachably connect with the power supply plug, a user can select the appropriate changeover plug according to the local power utilization system, thereby improving the applicability of the charging connector.

The invention discloses a preparation method for porcelain granules containing carbon. According to the weight percentage, 5%-40% of carbon powder, 5%-25% of gold mine tailing powder and 35%-70% of fly ash make up main raw materials. The preparation method comprises the steps of: (1) the gold mine tailing powder is dipped in a HCl solution; (2) the carbon powder, the fly ash and the modified mine tailing powder are uniformly blended; and then water is added for wet mixing; (3) the wet material is prepared into spheric granules with the grain diameter of 5-20mm; (4) the spheric granules are dried and sintered to obtain the porcelain granules containing carbon. The porcelain granules containing carbon are multifunctional porcelain granules with the functions of adsorption, light weight, high strength, heat preservation, thermal insulation, etc.

The invention relates to an air-lift-type circulation photobioreactor. According to the photobioreactor, light sources are respectively installed at the wall surfaces of an outer cylinder and an inner flow guide cylinder of the reactor; air enters the reactor from an air distributor at the bottom of the circulation reactor, and drives a microalgae solution in the reactor to circulate, so that light generated by the light sources can irradiate an area between the inner sleeve cylinder and the outer sleeve cylinder, and the microalgae blink effect is fully utilized to promote the microalgae culture. According to the invention, the radial distance of inner and outer dual-surface irradiation reactor descending sections is determined by a dual-flux method, thereby designing and amplifying the air-lift-type circulation photobioreactor for irradiating the descending sections synchronously by the light sources inside and outside.

The present invention relates to nourishing protein additive for ruminant, and is especially one kind of nourishing rumen-passing protected amino acid additive for ruminant and its production process. The nourishing amino acid additive consists of mainly protective fat powder 30-50 wt% and amino acid or methionine 50-70 wt%. The present invention realizes rumen-passing protection of lysine and methionine by means of simple physical coating treatment.

The invention provides a boiler coal combustion-improving desulfurizing agent composition. The composition comprises the following components in parts by weight: 3-9 parts of sodium carbonate, 1-2 parts of sodium acetate, 3-9 parts of calcium carbonate, 4-9 parts of aluminium hydroxide, 2-5 parts of ferric trichloride, 3-10 parts of ferric oxide, 8-22 parts of potassium permanganate, 8-22 parts of potassium chlorate, 15-40 parts of activated attapulgite clay, 7-13 parts of manganese oxide, 4-8 parts of copper oxide, 4-8 parts of alumina, 3-8 parts of copper carbonate, 3-10 parts of zinc oxide, 3-10 parts of zinc nitrate, 4-11 parts of sodium dichromate, 0.5-1.5 parts of barium molybdate, 0.5-1.5 parts of vanadium pentoxide, 0.2-0.5 part of cerium oxide and 1-3 parts of dispersing agent JFC. The composition is an additive suitable for coal-fired boilers in the petroleum, chemical, power, thermoelectricity and metallurgy industries, can absorb and solidify sulfur dioxide generated in the combustion process, adsorbs dust and other harmful substances in quantity and simultaneously removes smoke dust scales and jelly adhering to the inner walls of combustors, thus inhibiting the concentration of flue gas emission.

This invention discloses one business protection method, which adopts one to one protection set between two points positive path and comprises the following steps: a, business flow end point judges positive path shortcoming according to connection test results, if there is, then executing local point protection switching to generate BDI message at business flow mouth point and to send BDI message to business flow end point; b, business flow end points receive BDI message and executing local point switching.

The invention relates to a method for making a soil fertilization prescription diagram, a soil precise fertilization prescription diagram made according to the method and application in the aspect ofsoil precise fertilization. The method at least comprises the following steps: collecting soil data: collecting a soil sample at a soil sampling point, recording the latitude, longitude and number ofthe soil sampling point, and investigating field planting information; Wherein the soil data are arranged, the content of soil nutrients in the soil sample is analyzed, and the fertilizing amount required for achieving the target yield is predicted according to an agricultural model; And processing the soil data: importing the soil data into a GIS (Geographic Information System) for spatial interpolation processing to obtain a vector soil fertilization prescription diagram. According to the method and the application of the soil fertilization prescription chart, the problems of low fertilizerutilization rate, high production cost, cultivated land damage and the like in existing agricultural production are solved, the production cost is greatly reduced, the production benefit is improved,and the purpose of cultivated land protection is achieved.

The invention discloses a device and method for guiding fishes to sail upstream. The device comprises a water power device and a plurality of inverted T-shaped water supply units. The inverted T-shaped water supply units are composed of main water supply pipes and branch pipes. A water pump is connected with the inverted T-shaped water supply units, each branch pipe is provided with a plurality of spouts, and each spout is provided with a nozzle. Each inverted T-shaped water supply units contains more than two nozzles, radiation rays led out through the nozzles in each unit are approximately intersected at one point, connecting lines of the point with any two nozzles form acute triangles with connection lines between the two nozzles, submerged jet streams of the nozzles of any unit are superimposed to form a superimposed jet stream, and the superimposed jet streams of the unit nozzles are superimposed end to end for form a jet stream flow channel. The problems that the fishes in favor of sailing upstream in flowing water have no attracting stream flow to guide to sail upstream in static or low velocity areas in a high dam reservoir are solved; multiple sprout jet streams of a pipe network are adopted to guide the fishes to sail upstream, so that the fishes having spawning behavior by sailing upstream are prevented from failing to pass the wide ranges of static or low velocity areas due to changes in hydrological conditions in a water conservancy project.

The embodiment of the invention discloses a data transmission method, system and device, which are applied to the technical field of communication. In the embodiment of the invention, after receiving an access request, a PCRF (Policy and Charging Rules Function) entity generates encryption information corresponding a user identification in the access request, and sends the encryption information to a gateway to indicate that the gateway encrypts transmission data corresponding to the user identification according to the encryption information. The invention provides a safety protection strategy of the transmission data, so that the user can customize a corresponding safety strategy service according to the demand, and encrypts the data transmitted by a terminal device, so that the purpose of protecting the transmission data is achieved.

The invention relates to the technical field related to new energy, and discloses a new energy power generation equipment fitting transportation device. The new energy power generation equipment fitting transportation device comprises a box body, a box cover, fourteen vertical separation plates, twenty-six airbag layers, multiple airbag projections, a transverse mounting groove, a transverse multi-way pipe, an air guide joint, an embedding groove, a switch valve, twenty-six vertical guide grooves, twenty-six vertical air guide pipes, a mounting plate, a guide groove, two guide chutes, twenty-six mounting slide plates, fifty-two movable rollers, twenty-six lateral extension rubber layers, thirteen transverse extension rubber layers, thirteen sets of arc springs, a polish rod, an inner bearing, a starlike handle, two limiting blocks and thirteen thread set mechanisms; the box cover is positioned above the box body; and the fourteen vertical separation plates are distributed between the front and back side inner walls of the box body at equal intervals. The new energy power generation equipment fitting transportation device realizes multiple times of counteraction and buffering of stress transferred by photovoltaic panels, effectively protects the bottoms of the photovoltaic panels, and improves the applicability.

The invention discloses a recovery technology of high temperature and high pressure tail gas in the interval polymeric device, which is characterized by the following: decompressing and rinsing the high temperature and high pressure tail gas; transmitting the gas into low temperature and low pressure gas in the gas cabinet; cleaning and compressing and drying the low temperature and low pressure gas; producing fine polymeric reaction material. The invention can recover the interval tail gas and reinforce the operational reliability, which protects the environment and saves energy.

The invention provides a method and a device for managing communication content on a mobile terminal as well as the mobile terminal. The method comprises the following steps of obtaining selected communication content on a communication interface; controlling the selected communication content to be hidden on the communication interface after a hidden order for hiding the selected communication content is received.

The invention discloses an electromagnetic induction heating system. The electromagnetic induction heating system comprises an oscillation circuit, a frequency detection circuit and an over-load protection circuit, wherein the oscillation circuit is used for generating eddy current and used for heating devices; the frequency detection circuit is used for detecting oscillation frequency of an LC resonance circuit and used for transmitting frequency variation to an MCU in an SOC integrated circuit; the over-load protection circuit is used for transmitting an instantaneous peak current signal of a switch element to the MCU in the SOC integrated circuit and used for protecting the switch element; the oscillation circuit comprises the SOC integrated circuit for reckoning a magnetic core material variation degree and calculating temperature variation, an oscillation feedback circuit for transmitting a feedback signal to the MCU in the SOC integrated circuit, the LC resonance circuit for generating a high-value oscillation frequency, and the switch element; the high-value oscillation frequency is within 50K-100K. By adopting the scheme, an appropriate heating method can be selected, so that the purpose of protecting a large-power switch element is achieved, control on the temperature of the electromagnetic induction heating system can be achieved, and the electromagnetic induction heating system is smart in design and good in practicability.

A packing container especially for containing at least one display panel is composed of a case body, an upper fixing part, a lower fixing part, and at least one buffer part arranged between case body and the display area of display panel for protecting it.

Provided is a universal serial bus power transmission device comprising an input end which is configured to be connected with a power supply and receive an input voltage, a connector which is configured to be connected with a load and provide an output voltage for the load, a power converter which is configured to convert the input voltage into the output voltage, a power transmission controller which is configured to adjust the output voltage of the power converter or start the power converter to provide the output voltage according to the power demand of the load, and a secondary protection module which is configured to receive the power demand of the load from the power transmission controller and disconnect the circuit between the power converter and the connector when detecting that there is over-current or over-voltage. The universal serial bus power transmission device provided by the invention has both an over-current protection point adaptive adjustment function and an over-voltage protection function, and thus makes electronic equipment more efficient and practical.

The invention discloses a coal desulfurization technology, which mainly comprises the steps of mixing and processing a special type emulsifying agent, a dispersing agent, a cleaning agent, a complexing agent and a penetrating agent in certain proportions according to scientific combination. According to the combustion reaction mechanism of coal, a complexing coal washing desulfurizing agent composition is added into a coal washing desulfuration device, so that hazardous substances like inorganic sulfur and organic sulfur compounds in the coal can form sulfur compounds soluble in water through chemical reaction under the actions of oxidation, catalyzation and metal ion exchange, and the purpose of environmental protection can be achieved.

A Ke-Da-speed locomotive's air filter, which includes a main body, several ribs and a strengthening filters. The main dock has the inlet side of a shell and a outgassing side shell. These enhance rib spacing Outgassing installed at the side of the shell wall. The filter installed at the inlet side of the shell and the shell side of the Outgassing between to form a Ke-Da-speed locomotive's air filter, and the air flow rate can be accelerated to improve the efficiency of combustion engine fuel, fuel-efficient vehicles and environmental protection to achieve the purpose, and the main weight of the air filter will not be a substantial increase, and no additional silencers other devices to reduce the cost of production operations, effective reduce noise and the volume.

The invention discloses a direct-current detection circuit and a variable-frequency air conditioner using the same. The direct-current detection circuit comprises an integrated operational amplifier, a feedback network and current sampling resistors, wherein the feedback network is connected between the output end and the inversing input end of the integrated operational amplifier; the current sampling resistor is used for sampling the direct current to be detected; the number of the current sampling resistors is equal to the path number of the direct current to be detected; after the direct current to be detected is converted into a sampling voltage and the sampling voltage is superposed by a summator, the voltage is output to the same-phase input end of the integrated operational amplifier; and the output end of the integrated operational amplifier is used for outputting a voltage signal for reflecting the magnitude of the direct current to be detected. The voltage signal detected and output by the circuit reflects the current value input in real time, and the input current value can be indirectly calculated by detecting an output voltage value. Different output voltage protection values are set; and when the voltage value output by the circuit is detected to exceed the protection value, protection processing is carried out to achieve the purpose of protecting the input current.