31results about How to "Prevent evaporation" patented technology

The invention relates to an ethanol upgrading device and method, the device is used for upgrading ethanol containing a small amount of ethyl acetate, the device comprises a low-pressure rectification unit, a pumping unit and a high-pressure rectification unit which are connected in sequence, a variable-pressure rectification principle is adopted, azeotrope composition is changed only through a variable-pressure mode, reasonable process parameters are matched, and the quality of ethanol is improved. The purified ethanol is extracted from the low-pressure rectification unit, and the ethanol with higher ethyl acetate content is extracted from the high-pressure rectification unit, so that a large amount of ethanol is prevented from being evaporated to the high-pressure rectification unit, the energy consumption is obviously reduced, the production cost is reduced, and the economic benefit is improved.

The invention belongs to the field of monatomic materials, and particularly relates to a carbon material rich in nitrogen and monatomic zinc and application of the carbon material in catalytic activation of carbon dioxide, the content of nitrogen in the carbon material is 16.1 wt%-21.6 wt%, the monatomic zinc is distributed in the carbon material in a monatomic state, and the content of the monatomic zinc in the carbon material is 10.3 wt%-18.7 wt%. The high zinc loading capacity and nitrogen content can increase the catalytic active site density, optimize the electronic structure, and significantly improve the activity of the carbon material rich in nitrogen and monatomic zinc in catalyzing the activation of carbon dioxide.

The utility model relates to the technical field of geotechnical material's determination, the utility model discloses a cement soil permeation experiment device, including the bottom plate, the water storage jar is installed on the upper surface of bottom plate, the experiment casing is located one side of water storage jar to establish on the bottom plate upper surface, the pressurizing pump is installed on the bottom plate, the input of pressurizing pump fixed mounting has the connecting pipe, and one end of connecting pipe is linked with the bottom of water storage jar, and the output of pressurizing pump fixed mounting has the water delivery pipe, this cement soil permeation experiment device, by adopting sealing mechanism, the device can ensure the efficient sealing between experiment casing and cement soil test piece, thereby reducing the water error caused by the clearance leakage, improve the accuracy of permeation test. Due to the improvement of sealing performance, the device can ensure that the sealing effect of each test is consistent, thereby improving the repeatability of experimental results, providing more reliable data support for engineering design and construction.

The utility model belongs to the technical field of instrument heating, and provides a heating platform for hybridization, which comprises a platform, a groove body and a heating piece, the top end of the tank body is open, and two communicating ports are formed in the side wall of the tank body; the platform is arranged at an opening in the top end of the tank body, a groove for placing a sample glass slide is formed in the platform, and a cooling fin is arranged at the bottom end of the platform; and the heating piece is arranged in the groove body. When the heating platform is used, a sample glass slide is placed on the platform, water is added into the groove body through the communicating opening, then the water is heated to a preset temperature through the heating piece, heat is transferred to the cooling fins through the water, then the heat is transferred to the platform for heating, and the hybridization step of the sample is facilitated. And when cooling is needed, heated hot water is discharged through the communication port and is changed into normal-temperature water to cool the platform, so that the cooling efficiency is high. Meanwhile, in the heating and cooling process, part of water is evaporated, a wet environment is provided for the sample, and the probe on the sample glass slide is prevented from being evaporated.

The invention relates to the technical field of roadbed detection equipment, and discloses a fly ash roadbed compactness detection device which comprises a pulling vehicle, a supporting frame is arranged on the pulling vehicle, a driving mechanism and a detection mechanism are arranged on the supporting frame, and the detection mechanism comprises a connecting frame, a plurality of lifting mechanisms, a sand measuring mechanism, a cleaning mechanism, a pit digging mechanism, a collecting mechanism and a base plate. The lifting mechanism comprises a vertical frame and a lifting table, the driving mechanism drives the detection mechanism to rotate, the sand measuring mechanism discharges and weighs standard sand, the cleaning mechanism cleans a roadbed, the pit digging mechanism digs pits in the roadbed, the collecting mechanism collects the standard sand in roadbed holes after detection, and the base plate positions the roadbed detection position. The coal ash roadbed compaction degree detection device realizes standardization, precision and high efficiency of coal ash roadbed compaction degree detection, the whole process of the device replaces manual operation by machinery, the problems of hole wall collapse, sand scattering, impurity residue and the like are effectively avoided, and the labor intensity of detection personnel is greatly reduced.

This application relates to the field of power supply optimization technology, and discloses a method, device, equipment, and storage medium for constant current pulse power supply of a filament power supply. The method includes: S10: operating the filament power supply at full duty cycle, coordinating with the preset target output power of the anode power supply to cause the preset magnetron to oscillate; S20: determining whether the magnetron has completed oscillation, if yes, proceeding to S30, otherwise proceeding to S10; S30: based on a preset constant current pulse power supply parameter table and combined with the target output power, adjusting the duty cycle of the filament power supply during pulse power supply to enable the filament power supply to operate at the lowest duty cycle, achieving intermittent operation of the filament power supply and filament heating. The device, equipment, and storage medium all correspond to this method. This application significantly reduces the power loss of the filament circuit, improves the overall energy utilization rate, effectively suppresses the evaporation of active materials, and significantly extends the service life of the magnetron.

Provided is a sample processing device capable of automatically preventing drying or evaporation of a sample even if the sample is placed for a long period of time after dyeing processing. A sample processing device (100) is provided with: a staining unit (30) for staining a sample placed on a slide (1); a stage (32) on which the slide (1) can be placed; a temperature sensor (40) provided around the stage (32); and a control unit (C0) electrically connected to the stage (32) and the temperature sensor (40). The stage (32) has a temperature adjustment mechanism capable of changing the temperature of the stage (32). The control unit (C0) controls the temperature of the stage (32) so as to be lower than the temperature detected by the temperature sensor (40) when the slide (1) on which the staining process has been completed in the staining unit (30) is placed on the stage (32).

The utility model relates to the technical field of house door lock, disclose a theftproof building house door lock, including backplate, the backplate front end fixedly arranged with the protection frame, the protection frame inside front end is provided with cleaning mechanism, the cleaning mechanism includes connecting block, both sides of connecting block all are fixedly arranged with fixed block, the connecting block rear end is provided with sponge block, the protection frame inside one side is slidably arranged with rack, the rack upper end is slidably arranged with the limit cover, the protection frame inside rotation is provided with gear, the gear front and back both ends all are fixedly arranged with handle, the protection frame inside front end rotation is provided with protection cover, in the utility model, sponge block will contact with panel surface in the process of sliding up, wipe the fingerprint trace left on the top, not only can effectively remove the fingerprint that the button is stained, can also prevent password information from being collected by others, thereby improved the door lock security.

An electrolytic capacitor (1) comprising a main body shell (2), a capacitor element (10), and a sealing body (5), wherein the main body shell (2) has an opening, the capacitor element (10) is housed within the main body shell (2), the sealing body (5) seals the opening of the main body shell (2), the capacitor element (10) is wound with an anode foil (11) having an oxide coating (16) on its surface and a cathode foil (12) opposite to the anode foil (11) separated by a spacer (13), and an electrolyte layer (19) is provided between the anode foil (11) and the cathode foil (12), the electrolyte layer comprising: a solid electrolyte (17) comprising a conductive polymer; and a liquid electrolyte (18) covering at least a portion of the solid electrolyte (17), the liquid electrolyte (18) comprising at least an unsaturated fatty acid salt, wherein the unsaturated fatty acid salt monomer or a mixture of unsaturated fatty acids added to the unsaturated fatty acid salt comprises more than 50% by weight of the liquid electrolyte (17).

The application discloses a centrifugal microfluidic chip for allergen detection, comprising a chip main body and a plurality of microstructures, wherein the chip main body has a rotation center, and the microstructures comprise: a waste chamber located at the farthest end of the rotation center; a reaction detection chamber provided with a carrier, the carrier being coated with anti-human IgE antibodies; a circular truncated cone-shaped channel, the narrow end of which is connected with the other end of the reaction detection chamber, and the wide end of which is connected with a main channel; a serum separation structure comprising a blood cell chamber and a serum chamber, the serum chamber being connected with the main channel through a siphon valve; a first buffer solution chamber; an allergen chamber; a second buffer solution chamber; an enzyme storage chamber; a third buffer solution chamber; a bottom liquid chamber; and a termination liquid chamber. The application avoids contamination and evaporation of reagents, does not need additional driving equipment, is conducive to integration and miniaturization of the equipment, saves consumption of sample whole blood and reagents, reduces cost and time, and is simple to operate; the application needs small amounts of sample and reagents, has low cost, short detection time, and high detection sensitivity.

The utility model discloses a hand-push type emulsified asphalt constant-temperature spreader, and relates to the technical field of pavement construction. The device comprises a trolley, a heat preservation box, a sealing top cover and a conveying pipe, the heat preservation box is fixed to the center of the top of the trolley, a containing opening is formed in the center of the top of the heat preservation box, a heating plate is fixed to the portion, below the containing opening, of the heat preservation box, the sealing top cover is arranged at the top end of the heat preservation box, and an inflation pump is fixed to the center of the top of the sealing top cover. The output end of the inflation pump communicates with the heat preservation box, and one side of the heat preservation box fixedly communicates with a conveying pipe. By arranging the trolley, the heat preservation box, the sealing top cover and the conveying pipe, the problems that a hand-push type emulsified asphalt spreader is not good enough in constant-temperature effect, pressure is continuously reduced in the asphalt spreading process, and the asphalt spreading uniformity is influenced are solved, and the hand-push type emulsified asphalt spreader has the advantages that the hand-push type emulsified asphalt spreader is good in constant-temperature effect and high in practicability. And the pressure uniformity of spreading is better.

The application discloses a titanium carbide and element powder modification method for 5-series aluminum alloy and an aluminum alloy composite material, and aims to solve the technical problems that in the existing additive manufacturing, due to the high content of Mg element in the 5-series aluminum alloy, the additive manufacturing is difficult, and the aluminum alloy composite material obtained by additive manufacturing has crack defects and poor densification effect due to thermal cracks and evaporation of strengthening elements. The modification method comprises the following steps: obtaining 5-series aluminum alloy powder; adding titanium carbide particles and element powder to the 5-series aluminum alloy powder for mixing to obtain mixed powder; after heat preservation treatment of the mixed powder, the composite powder with small particle size is collected through screening; and the composite powder is formed by additive manufacturing, so that the modification of the 5-series aluminum alloy is completed, and the aluminum alloy composite material is obtained. The technical scheme of the application is used for providing a titanium carbide and element powder modification method for 5-series aluminum alloy and an aluminum alloy composite material.

The application provides a dilution refrigerator unit, and particularly relates to the field of desktop ultra-low temperature refrigeration equipment. The dilution refrigerator unit comprises a first vacuum device, a second vacuum device, a liquid nitrogen cold trap and a front-stage refrigerator. The inner cavity of the first vacuum device is provided with a radiation-proof screen. The inner cavity of the radiation-proof screen is provided with an adsorption device. The liquid nitrogen cold trap is arranged inside the adsorption device. The liquid nitrogen cold trap is externally provided with a heating element. The front-stage refrigerator is arranged on the top of the second vacuum device. A primary cold head of the front-stage refrigerator extends into the inner cavity of the second vacuum device. The first vacuum device and the second vacuum device are connected through a bellows. The primary cold head is connected with the inner cavity of the radiation-proof screen through a gas-gap type thermal switch. The application makes full use of the surplus cold capacity of the primary cold head, and builds a low-temperature heat exchange environment for the liquid nitrogen cold trap without interfering with the normal cooling and circulation conditions of the dilution refrigerator unit, so that the evaporation of liquid nitrogen is effectively inhibited, the loss of liquid nitrogen is reduced, and the liquid supplement frequency is reduced.

The utility model relates to the technical field of hub casting, and discloses a water-cooling type hub machining die which comprises a rear die and a front die, buffer heat insulation parts used for cooling a hub are arranged on the left side of the rear die and the right side of the front die, and each buffer heat insulation part comprises a rear cooling box attached to the left side of the rear die and further comprises a front cooling box attached to the right side of the front die. An oil cavity is formed between the rear cooling box and the front cooling box, a water cooling part is arranged in the oil cavity and comprises a heat absorption pipe, and flowing cooling water is arranged in the heat absorption pipe. The cooling oil is contained in the oil cavity of the buffer heat insulation part so that part of heat can be effectively absorbed, instant evaporation of the cooling water in the heat absorption pipe can be prevented, the cooling oil wraps the outer wall of the heat absorption pipe so that release of heat can be accelerated, the cooling oil has high specific heat capacity, but the concentration is high, circulation is slow, and the cooling water has high flowability; heat of cooling oil can be rapidly taken away, and instant evaporation of cooling water can be prevented.

The utility model discloses a rainwater collecting device which comprises a collecting vessel, a switch device and a pressure release valve. A flow guide cover is arranged at one end of the collection vessel, and a liquid inlet pipe communicated with the collection vessel is arranged on the flow guide cover; the switch device comprises a supporting rod, a balancing rod, a balancing weight and a first sealing piece. The supporting rod is arranged on the side, close to the collecting vessel, of the flow guide cover, the balance rod is rotationally arranged on the supporting rod, a balancing weight is arranged at one end of the balance rod, a first sealing piece is arranged at the other end of the balance rod and has a first position and a second position, and the first sealing piece blocks a pipe opening of the liquid inlet pipe when located at the first position; the first sealing element is separated from the pipe orifice of the liquid inlet pipe when in the second position; and the pressure release valve is arranged on the flow guide cover and is communicated with the collection vessel. According to the rainwater collecting device, rainwater can be automatically collected, the stored rainwater is prevented from being evaporated, and continuous and automatic operation of the rainwater collecting device can be guaranteed.

The invention discloses a low-alloy wear-resistant steel forming method based on dynamic zooming-current coupling. The low-alloy wear-resistant steel forming method comprises the following steps that S1, powder is laid; s2, preheating is conducted; s3, carrying out partitioned melting; s4, cooling; and S5, stress relief annealing. According to the low-alloy wear-resistant steel forming method based on dynamic zooming-current coupling, compared with traditional constant parameter scanning, a dynamic zooming-current coupling scanning mode is provided, the real-time control capability of an electron beam is improved from position control to energy form cooperative control, and therefore the real-time control capability of the electron beam is improved. The crystal grains are refined and the tissues are densified by actively manufacturing molten pool oscillation, so that the internal quality of a formed part is fundamentally improved; by means of molten pool disturbance caused by zooming, the grain size of the low-alloy wear-resistant steel is averagely reduced by 30%-40%, meanwhile, the obvious columnar crystal growth direction is broken, and the mechanical property difference between the Z axis (construction direction) and the XY plane (horizontal direction) is reduced to be within 5%.

The utility model relates to the technical field of desert river treatment, in particular to a wind-resistant vegetation protection device for reducing evaporation of river water in a desert region, which comprises a river surface region and a river bank region, wind-resistant vegetation is planted in the river bank region, a plurality of foam plates are laid on the water surface of the river surface region, through hole groups are arranged on the surfaces of the foam plates, and a high bracket is fixedly arranged in the river bank region. A water tower tank and a water pump are arranged at the top of the high supporting frame, the bottom end of the water tower tank communicates with a water conveying pipe, and the horizontal pipe communicates with a plurality of drip irrigation pipe bodies. According to the device, foam plates are laid on the surface of the river surface area, the problem of water evaporation caused by direct solar radiation on the water surface is avoided, water resources in the river surface area are conveyed to the water tower tank, water is accurately conveyed to the drip irrigation pipe body through gravity, and the water resources can be greatly saved through accurate drip irrigation; the drip irrigation pipe bodies are designed to be S-shaped, according to the communicating vessel principle, the drip irrigation pipe heads can drip water gradually for irrigation only when each drip irrigation pipe body is filled with water at the same height, and the uniformity of the water dripping amount of each drip irrigation pipe head is guaranteed.

The utility model relates to raw material medicine production technical field, in order to solve how to effectively remove the crystallization water in raw material medicine in the drying process while retaining the crystallization water in raw material medicine, and not adopt negative pressure drying, and avoid the technical problem that the crystallization water content increases due to humidity is too high, the utility model discloses a kind of humidity control drying device, including humidification tank, mixing tank and hot air circulation oven, humidification tank has the first gas inlet of input nitrogen and the first gas outlet for output nitrogen, float flowmeter is equipped in the first gas inlet, and the first gas outlet is connected with mixing tank by pipeline;Mixing tank has the second gas inlet of input nitrogen and the third gas inlet connected with the first gas outlet, and adjusting valve controlled by PLC controller is equipped in the second gas inlet, and mixing tank is provided with second gas outlet;Hot air circulation oven has the air inlet connected with second gas outlet, and the moisture exhaust port for excluding water vapor.Precise control humidity, retain crystallization water, remove acetone.

The drought-resistant millet cultivation device comprises a main body, a pretreatment mechanism and a planting mechanism, the pretreatment mechanism comprises a motor, a stirring frame, a water pump, a water tank and a closing cover, the planting mechanism comprises a push rod, a movable frame, a piston pump, a flow dividing piece, a contact piece and a burying assembly, and the burying assembly comprises a connecting frame, a pressing roller and a folding piece. Under the mutual matching action of the mechanisms, the device ensures that the seeds can absorb enough moisture by mixing the seeds with the water and the plant adhesive, the rapid germination of the seeds is facilitated, the plant adhesive can effectively keep moisture and prevent the moisture from being rapidly evaporated, especially in a drought environment, the opportunity of successful germination of the seeds is increased, and the germination rate of the seeds is increased. In addition, the function of the device ensures that the seeds in the slurry can be stably and accurately cultivated into the soil, and the problem of non-uniform, over-deep or over-shallow seeding is avoided.

This utility model discloses a dust removal and cooling device for high-dust, high-concentration, ultra-high-temperature hydrogen gas, used for dust removal and cooling of the cracked gas produced by methane cracking for hydrogen production. It includes a dust collector and a cooling device. The dust collector comprises a gravity dust collection box and a water tank, with the gravity dust collection box nested within the water tank. The gravity dust collection box is used to deposit carbon powder in the cracked gas and has an ash hopper at its bottom. The water tank cools the gas entering the gravity dust collection box by supplying circulating water. The cooling device cools the cracked gas after dust removal by supplying circulating water. This dust removal and cooling device effectively solves the technical problems existing in the current methane cracking for hydrogen production process, such as difficulty in carbon-hydrogen separation under high dust, high concentration, and ultra-high temperature conditions, carbon powder blockage during hydrogen cooling, and difficulty in collecting carbon powder after high-temperature dust removal. The cracked gas undergoes subsequent cooling treatment only after a large amount of carbon powder is removed and after initial cooling and deceleration, which reduces the risk of blockage in the cooler.

The utility model relates to leisure shoes technical field especially a kind of high folding resistance breathable casual shoes, including shoe sole and upper, the multiple positioning slots are annularly arranged in the installation groove side inner wall, the multiple and match positioning blocks corresponding with positioning slot are annularly arranged in the second shoe sole circumferential surface, the multiple first air holes are set in the first shoe sole lower surface front and rear portion, the second air hole is set in the second shoe sole and the surface of protruding block, the first shoe sole lower surface front and rear portion are equipped with folding resistance wear-resistant device. The folding resistance wear-resistant device set by the utility model, the wear resistance of the utility model is increased by multiple longitudinal wear-resistant strips and multiple transverse wear-resistant strips, the tensile folding resistance of the utility model is increased by the TPU element set, and the wear resistance and folding resistance of the shoe sole of the utility model are good;The first air hole and the second air hole are set, so that the air permeability of the second shoe sole of the utility model is good.

The invention discloses an ecological restoration method for high and cold mining wasteland, and belongs to the technical field of ecological restoration of mining areas. The ecological restoration method for the high and cold mining wasteland comprises the following steps: (1) surveying and quantifying the field; (2) landform improvement and soil pretreatment; (3) soil improvement; (4) inoculating functional microorganisms; (5) coldproof plant configuration and habitat maintenance. The invention provides a comprehensive remediation method integrating cold-resistant plant screening, soil matrix targeted improvement, functional microorganism and plant coupling remediation and auxiliary engineering measures, and aims to effectively solve the key problems of low vegetation survival rate, soil depletion, poor matrix stability, limited microbial activity and the like in ecological remediation of high and cold mining areas. And rapid, stable and sustainable ecological restoration of waste land is realized.

This application discloses an intelligent plant climate chamber in the field of intelligent plant climate chamber technology, which includes pest and disease monitoring and control. The climate chamber body includes a cultivation rack, a humidifier, a dehumidifier, a condenser, a heater, and a ventilation device. The cultivation rack comprises multiple layers of panels, each panel having a light source. Each panel is rotatably connected to a rotating ring that surrounds the light source. Each panel has a motor that drives the rotating ring. The inner circumference of the rotating ring is symmetrically fixed with arc-shaped blocks. The portion of the panel inside the rotating ring has four grooves facing the light source. Connecting rods are slidably connected to these grooves. Springs are provided between the connecting rods and the grooves. A semi-frame is located at the bottom of each connecting rod. The arc-shaped blocks on both sides alternately abut against the oppositely positioned connecting rods. By pushing the oppositely positioned connecting rods to slide, the semi-frames on both sides close together, surrounding and sealing the light source. This solution improves the pest control effect.

The utility model discloses a non-immersion type liquid weighing structure, relates to the technical field of liquid flow metering, and comprises a non-overflow beaker, a sealing cover, an injection tube and a microporous liquid absorption cushion block, the microporous liquid absorption cushion block is arranged on the inner bottom surface of the non-overflow beaker, the sealing cover is connected to the rim of the non-overflow beaker in a sealing manner, and the injection tube is connected with the non-overflow beaker in a sealing manner. The injection pipe penetrates through the sealing cover and extends into the non-overflow beaker, the injection pipe is connected with the sealing cover in a sealing mode, a lower end opening of the injection pipe is adjacent to the upper surface of the microporous liquid absorption cushion block, and a gap exists between the lower end opening of the injection pipe and the upper surface of the microporous liquid absorption cushion block. The non-immersion liquid weighing structure provided by the utility model does not need to correct the buoyancy of the injection tube in the testing process while inhibiting evaporation, does not introduce additional acting force of an oil film in the measuring process, prevents the jet flow acting force of the injection tube from influencing the mass weighing of a balance, and improves the measuring accuracy.

The invention relates to the technical field of agricultural production, and particularly discloses a preparation and use method of a chitosan oligosaccharide antifreeze agent, the antifreeze agent comprises the following components by weight: 1-3 g / L of potassium dihydrogen phosphate, 0.01-0.03 mg / L of brassinolide, 0.5-1 g / L of amino acid, 25-50 mg / L of chitosan oligosaccharide powder (10%), 0.01-0.04 mg / L of glutamic acid, 0.01-0.04 mg / L of lysine, 0.2-0.4 mg / L of pyruvic acid, 0.1-0.2 mg / L of citric acid, 0.01-0.02 mg / L of glycerin, 20-50 g / L of an emulsifier, and the balance of water. 10-20 g / L of SiO2 nano-particles and a trace element fertilizer; according to the invention, through cooperation of the elements in the agent, on the basis of supplementing nutrient elements of plants, the lignification degree of the plants is enhanced, the freezing resistance of the plants is enhanced, the plants are induced to generate stress resistance, the SiO2 nanoparticles are added, so that the anti-freezing agent is adsorbed in the nanoparticles, slow release of the drug effect of the anti-freezing agent can be realized, and the anti-freezing effect of the plants is improved. The pesticide effect timeliness after single-time spraying of the anti-freezing agent is prolonged.

The utility model discloses a double mode water distributor for ore heating furnace belongs to ore heating furnace cooling equipment technical field. Including ore heating furnace liquid outlet pipe and water distributor, and water distributor includes backwater collecting pipe, and backwater collecting pipe is equipped with first pipeline, and first pipeline is equipped with first valve, and the bottom of backwater collecting pipe is equipped with backwater collecting groove, and backwater collecting groove is equipped with second pipeline, and first pipeline and second pipeline are connected with ore heating furnace liquid outlet pipe through three -way joint, and the water outlet of backwater collecting pipe and backwater collecting groove is equipped with third valve and fourth valve respectively, and backwater collecting groove is equipped with exhaust port. Still disclose a kind of ore heating furnace cooling circulation system, including water pump, water inlet distributor, ore heating furnace, backwater distributor and cooling tower connected in turn. The double mode water distributor combines closed circuit and open circuit circulation, mainly reduces resource waste and equipment damage with closed circuit, and exhausts with open circuit, guarantees cooling effect and system safety.

The application belongs to the technical field of preparation of ruthenium trichloride, and discloses a preparation method of ruthenium trichloride, which comprises the following steps: step 1: heating and evaporating chlororuthenic acid under the pressure of-0.06 to-0.08 Mpa to obtain concentrated liquid with the density of 1.30 to 1.40 g / ml; step 2: vacuum filtering the concentrated liquid to obtain filtrate; and step 3: baking the filtrate to obtain finished product. Through fine control of each step in the evaporation and concentration stage, the filtering stage and the baking stage, the ruthenium content of ruthenium trichloride is synergistically and accurately controlled, the content of insoluble alpha-type ruthenium trichloride and ruthenium dioxide in the ruthenium trichloride is effectively reduced, the purity of the ruthenium trichloride is effectively improved, and the product quality is improved.

The utility model discloses a cryopreservation tube for laboratory detection, including the cryopreservation tube body for laboratory detection, the top of cryopreservation tube body is provided with the cover body mechanism for sealing, this cryopreservation tube for laboratory detection cooperates through cover body mechanism, base, protection side branch board and horizontal interfacing arc plate, in the process of repeatedly freeze -thaw or long -term low temperature storage, the cover body mechanism of cryopreservation tube body top is not easy to appear deformation or slack, can effectively avoid the sample leakage or evaporation in cryopreservation tube body, prevent causing sample loss or cross -contamination, base, protection side branch board and horizontal interfacing arc plate can be restrained to the appearance of cryopreservation tube body, effectively avoid the risk of the burst pipe of cryopreservation tube body, through the mutual cooperation between outer sealing cover body, inner sealing plug cover and coniform outer thread plug, can realize the effect of multiple seal to the top of cryopreservation tube body, the setting of first sealing ring and second sealing ring, further strengthen the sealing effect to the top of cryopreservation tube body.

The utility model discloses a kind of phytogenic bags for simple and easy re-greening of block stone slope, to solve the re-greening problem of slope where construction machinery cannot reach. The phytogenic bag includes a bag main body formed by inner and outer layer bags, and a phytogenic chamber for accommodating planting soil and seeds is provided between the inner and outer layer bags. The core lies in that an independent fertilizer bag and a water collecting bag are additionally provided between the inner and outer layer bags. The fertilizer bag is filled with fertilizer, and the water collecting bag can be pre-filled with water. Both of them are made of slow-permeable material, which can provide sustained-release water and nutrients for the early growth of plants. The top of the water collecting bag is provided with a slotted inlet for collecting and storing rainwater, and the internal rigid support holder can maintain its water storage space. The design realizes the characteristics of self-provided water and fertilizer and long-term supply, effectively improving the success rate of slope re-greening in harsh environments.

The utility model discloses an efficient high-safety wafer drying device which comprises a box body and a containing cavity formed in the box body, a heating plate is fixedly arranged in the containing cavity, and a liquid inlet spray head which is arranged on the box body and used for being communicated with an IPA solvent is arranged on one side of the heating plate; a dehydration disc is arranged above the heating plate, a condensation assembly fixedly arranged on the box body is arranged over the dehydration disc, and a transferring assembly capable of clamping and transferring the lifting basket to the position between the dehydration disc and the condensation assembly is arranged on the box body; a water collecting plate used for collecting condensate water is arranged under the condensation assembly, cover plates are symmetrically arranged on the top of the box body in a pivoted mode, and an arc-shaped flow guide plate is fixedly arranged on each cover plate. The beneficial effects of the utility model are mainly reflected in that the design is exquisite, the arc-shaped design of the guide plate can guide and drain the cooled IPA solvent liquid, the IPA solvent liquid is prevented from dropping on the wafer, the situation that the guide plate and the cover plate release metal ions at high temperature to pollute the wafer is avoided, and the yield is improved.