243 results about "Dry ice" patented technology

The invention discloses a device and method for cleaning the interior of a large complex sealing structure. The device comprises an ice conveying system, an oil conveying system and an environment control system. The oil conveying system is used for storing and conveying cleaning fuel oil, and the environmental control system is connected with the fuel oil system and connected into a device to be cleaned so as to form a closed cleaning system. The environment control system is further used for being connected into the ice conveying system, the ice conveying system conveys dry ice into the environment control system, the dry ice is mixed with cleaning fuel oil provided by the fuel oil system, and the dry ice and cleaning liquid are mixed and then conveyed to the device to be cleaned. A mixture of dry ice and cleaning liquid is periodically put into a to-be-cleaned device, an inlet and an outlet of the to-be-cleaned device are closed, cleaning fuel oil is driven by carbon dioxide gas generated by sublimation of the dry ice in the pressurization and decompression processes to generate vortex disturbance, and the interior of the to-be-cleaned device is cleaned. The problems that in the prior art, cleaning does not reach the standard, and efficiency is low are effectively solved.

The application discloses an intelligent laser-dry ice composite cleaning method and device, and belongs to the field of stain cleaning. The application is used to solve the problem of unsatisfactory cleaning effect of the prior art on stains with large thickness. The method comprises the following steps: performing visual scanning on a workpiece to be cleaned, obtaining stain thickness distribution on the surface of the workpiece to be cleaned through three-dimensional surface morphology reconstruction, and dividing the surface of the workpiece to be cleaned into multiple sub-regions according to the stain thickness; the sub-regions include three types: an extremely thin sub-region, a medium-thickness sub-region and a large-thickness sub-region; performing cleaning path planning to form three cleaning paths; the cleaning process of the cleaning path of the extremely thin sub-region is laser cleaning; the cleaning process of the cleaning path of the medium-thickness sub-region is laser-dry ice composite cleaning; and the cleaning process of the cleaning path of the large-thickness sub-region is laser-dry ice composite cleaning. The cleaning device comprises a ground rail gantry motion system, a first mechanical arm, a second mechanical arm, a dry ice cleaning system, a visual identification system and a pulse laser cleaning system.

The utility model provides a kind of dry ice spraying device, including heat preservation shell, the upper end of the heat preservation shell is provided with nozzle structure, the inside fixed connection of the heat preservation shell has dry ice bucket, the dry ice bucket includes barrel, the lower part side wall of the barrel is fixedly connected with the mesh of inside and outside conduction, the outside of the dry ice bucket is sleeved with inner heat preservation sleeve, the lower end of the heat preservation shell is penetrated and is fixedly connected with fan.The utility model, it is provided with heat preservation shell and inner heat preservation sleeve, and make air two times turn, i.

This invention belongs to the field of building materials technology, specifically relating to a solid waste-based high-strength phase change lightweight aggregate, its preparation method, and its application. The solid waste-based high-strength phase change lightweight aggregate provided by this invention comprises the following raw materials in parts by weight: 26-32 parts cement, 4-6 parts steel slag powder, 32-36 parts ice chips, 14-16 parts dry ice, 12-16 parts brick slag powder, 2.7-3.6 parts paraffin emulsion, and 0.3-0.4 parts organosilicon water-repellent agent. This invention uses construction solid waste brick slag loaded with paraffin emulsion to prepare phase change microparticles, and uses cement and steel slag powder to react under ice chips and dry ice conditions to form high-strength lightweight aggregate. Simultaneously, ice chips and dry ice are used for room-temperature pore formation and to improve curing efficiency. The resulting solid waste-based high-strength phase change lightweight aggregate achieves an organic combination of phase change products and pure lightweight aggregate, exhibiting high strength, good stability, and low manufacturing cost. It is a new type of solid waste-based energy-saving building material with higher quality and more convenient application.

The invention relates to the technical field of food processing, in particular to a freeze-dried broccoli processing method. The invention provides a freeze-dried broccoli processing method which comprises the following steps: taking cleaned broccoli, and cutting the broccoli into small flower types which are consistent in size, shape, thickness and height; carrying out instantaneous fixation by adopting steam, immediately soaking the broccoli subjected to fixation in ice water, fishing out the broccoli, and draining water; stacking the quick-frozen broccoli and the dry ice layer by layer; and after the temperature of the broccoli is reduced to-40 DEG C to-60 DEG C, performing vacuum freeze drying until the water content is less than or equal to 3% to obtain the dehydrated broccoli. According to the method, the loss of functional components such as glucoraphanin and polyphenol is reduced; formation of ice crystals is reduced, cell damage is reduced to the maximum extent, the content of functional components is effectively maintained, the color is close to that of fresh broccoli, and rehydration performance is good; the retention rates of functional components of glucoraphanin, flavone and vitamin C in broccoli all reach 98% or above.

This invention provides a dry ice transport insulated box for cell products, belonging to the technical field of transport boxes. It includes a box body and lid secured by latches. Inside the box, partitions separate storage compartments for cryopreservation bags, cryopreservation tubes, and dry ice. The dry ice storage compartments are located around the cryopreservation bag and cryopreservation tube storage compartments. Two thermometers are fixed to the side of the box body, with their probes extending into the cryopreservation bag and cryopreservation tube storage compartments respectively, allowing real-time monitoring of the box's internal temperature. The cryopreservation bag storage compartment is used to store strip-shaped cryopreservation boxes containing cryopreservation bags, while the cryopreservation tube storage compartment is used to store square cryopreservation boxes containing cryopreservation tubes. This invention isolates the storage compartments for each cell, preventing collisions and impacts on cell quality stability during transport.

Cleaning equipment and devices are provided for fin fans that includes one or more blasting nozzles configured to propel a cleaning media from the blasting nozzle towards the fin fans to remove fouling on the fin fans, for instance, caused by dirt, dust, grease, plants, condensation and the like. The blasting nozzle if configured to propel a cleaning media, such as dry ice, that cleans the fin fans while minimizing risk of damage to the fin fans and also minimizing environmental impact associated with the cleaning activities. The cleaning equipment may be a single-hose, double-hose, or triple-hose system depending on the specific operating parameters and desires of a user. The cleaning equipment may include additional features, for instance, a fragmenter configured to break up dry ice particles, and / or a handle, trigger, and / or controls to manage operation of the device.

The utility model discloses a portable preservation box for stem cell culture, which comprises a box body, the inside of a mounting shell is divided into circulation channels through a plurality of groups of placing boxes, and the circulation channels are used for prolonging the forced contact time of air and dry ice; the air inlet end of the air pump communicates with two sets of extraction pipes used for extracting air to flow in the circulation channel. Through the design of the mounting shell, the placement box, the air pump, the extraction pipe, the exhaust pipe and the like, and through the cooperation of the air pump, the extraction pipe and the exhaust pipe, air in the box body can quickly flow in the mounting shell, and the air is forced to be in contact with dry ice in the placement box when flowing in the mounting shell, so that the air is quickly cooled and uniformly circulated; therefore, a cold source can be utilized to the maximum extent, energy waste is reduced, a set low-temperature environment can be recovered in a short time through an active refrigeration mode, the time for exposing stem cells to non-ideal temperature is shortened, and cell activity decline or cell death is avoided.

The utility model provides a kind of cleaning device for mine machinery, relate to mine cleaning technical field.A kind of cleaning device for mine machinery, including the frame with gyro wheel, central processing unit is installed in frame and the dry ice cleaning machine electrically connected with central processing unit, dry ice cleaning machine includes the cleaning pipe and dry ice spray gun communicated in turn, the frame is equipped with lifting shell, lifting shell slidingly is equipped with the transverse frame that can be lifted along gravity direction, transverse frame is slidably equipped with the cleaning seat for fixing the above-mentioned dry ice spray gun along the head-tail direction of frame.The cleaning device adopts dry ice cleaning machine to clean the precision parts of coal mine instruments, realizes the cleaning of multiple angles, avoids personnel to climb up and down, on the basis of not disassembling equipment, the precision position needing cleaning is cleaned, reduces the damage, rust etc. caused by cleaning, the problem caused by water cleaning, high quality is completed the cleaning of mine instrument.

The utility model belongs to the field of OLED organic light-emitting materials, and particularly relates to an OLED organic light-emitting material collecting device which comprises a working box, an observation window is fixedly connected in the working box, two glove extending holes are formed in the observation window, the outer side of the working box is fixedly communicated with a solid-gas separation device, and the solid-gas separation device is fixedly communicated with the working box. And an air injection assembly is arranged on the outer side of the working box. The sealing elastic cloth is pulled to drive the elastic rope to stretch so as to extract mixed gas in the transmission pipe, then the sealing elastic cloth is loosened to drive the sealing elastic cloth to rapidly rebound through the elastic rope, so that the mixed gas enters the working box along the exhaust pipe, and due to the shape of the exhaust pipe, the mixed gas enters the working box through the elastic rope. By means of the structure, the mixed gas is in a rotating smoke ring shape, is gradually expanded when leaving the exhaust pipe and is provided with part of power, and residual materials on the baffle can be struck through the carried power and dry ice particles, so that the materials are scoured down, and waste of the materials is reduced.

The utility model belongs to virus storage equipment technical field, and disclose a kind of virus detection specimen storage device, including storage box, the outside hinged cover of storage box is equipped with, and the inside assembly of storage box is equipped with quick -mount structure, the outside assembly of cover is used for the abutment structure for limiting specimen movement, the quick -mount structure includes the fixed plate installed from top to bottom in the inner wall of storage box, by the design of quick -mount structure, push freezer to make it slide inside baffle, extrude first spring simultaneously, during this period, the slider outside first connecting rod slides along the trajectory of heart-shaped sliding slot, and slides into one place limit slot and is locked, at this time, freezer slides to the outside of storage box, the dry ice or ice bag in freezer can be replaced, after replacement is completed, freezer is pushed again, at this time, slider is separated from first limit slot, and along heart-shaped sliding slot is moved to second limit slot and is locked, freezer is reset, and the quick replacement of dry ice or ice bag etc. in freezer is further achieved.

The present application relates to the technical field of steelmaking auxiliary materials, in particular to a method for improving the balling rate of molybdenum oxide composite briquetting, in which process, in order to control the material temperature and overcome the problem of reaction heat release in the material, raw dolomite or limestone particles which are not easy to react with water are used to replace the traditional inhibitor lime, and the chemical reaction heat production is effectively controlled; the briquetting process provided by the present application adjusts the conventional one-time stirring and mixing to twice stirring, dry ice is added for cooling during the stirring process, and each time after stirring, standing is carried out, and through the above measures, the problem of material heating caused by the heat generated by material stirring and chemical reaction and then causing the problem of cracked briquetting after briquetting can be effectively solved. The balling rate of the molybdenum oxide composite briquetting for steelmaking produced by the process reaches more than 90%, the breaking strength is greater than 600N, and the falling strength is more than 15 times / (0.5m).

Embodiments of the present invention provide a frost point hygrometer apparatus utilizing dry ice and ethanol, or liquid nitrogen, as cryogenic coolant. FPH apparatus in accordance with embodiments of the present invention includes a copper cold finger with a sink immersed in a liquid cryogen to provide cooling power throughout the profile, a polished mirror disk residing at the opposite end of the cold finger with ambient air passing over it, a nichrome heater wrapped around the narrow shaft of the continuous cold finger and mirror piece to provide heat to the mirror, an optical source and detector, including an infrared light-emitting diode and a photodiode, to monitor the mirror's reflectivity as condensate accumulates in the form of dew or frost, a biconvex lens to focus the light reflected from the mirror into the photodiode, and a calibrated thermistor embedded in the mirror to measure the frost point temperature.

The invention relates to the field of battery materials, in particular to modified coal-based hard carbon and a preparation method thereof. The method comprises the following steps: etching a sodium chloride template, then carrying out chitosan derived carbon coating, subsequently carrying out dry ice grinding, and finally obtaining the coal-based hard carbon material with large interlayer spacing, surface etching and abundant defects. Compared with traditional hard carbon, the hard carbon has smaller particle size and higher oxygen content and defect concentration. According to the modified coal-based hard carbon disclosed by the invention, the microcrystalline structure is controlled through salt template etching, and the interlayer spacing is improved. The chitosan derived carbon coating optimizes the surface and defect structure. The coal-based hard carbon with a controllable pore structure is prepared by a method of combining salt template etching and a chitosan derived carbon coating, so that accurate conversion from coal to hard carbon is realized. Further dry ice milling has a smaller particle size and mitigates particle agglomeration. The defect concentration is improved by further utilizing the physical and chemical synergistic effect, and the etching effect on the surface of the hard carbon material is promoted.

The invention relates to the technical field of part cleaning, in particular to a hardware part cleaning device and method for an internal complex environment. And a robot can be matched to assist workpiece positioning and conveying, and cleaning automation and precision are improved. The device comprises a dry ice supply system, an air source system, a mixing ejector, a cleaning cabin, a negative pressure recovery system and the like, according to the method, a sealed cleaning cavity is constructed through a sealing assembly and a sealing cover, negative pressure recovery is started to establish initial negative pressure, then gas-solid two-phase flow formed by mixing dry ice and compressed air is intermittently injected, and the cavity pressure is periodically adjusted; and the cleaning medium fully permeates deep and long oil ducts and gaps, and pollutants are continuously pumped out in cooperation with negative pressure. The problems of kinetic energy attenuation and cleaning dead angles of existing dry ice cleaning complex inner cavities are solved, cleaning is efficient and thorough, secondary pollution is avoided, the robot assists in optimizing the cleaning process, and the robot is suitable for complex inner cavity hardware parts such as industrial gearboxes.

System suitable for storing and / or transporting temperature-sensitive materials. In a preferred embodiment, the system may include a cooler made of expanded polystyrene foam. The cooler may include a base and a lid. The base may be a unitary structure that includes a cavity bounded by a bottom wall and four side walls. The base also may include an integral support that may include a platform elevated from the bottom wall, as well as a stanchion extending upwardly from the bottom wall along each of the side walls. The support may be constructed to removably receive a product box in the cavity and to orient the product box at an angle offset from the cavity. Dry ice pellets may be positioned around and under the product box, and additional dry ice pellets may be positioned in a tray mounted on the stanchions over the product box.

The utility model provides a cryopreservation box which comprises a shell and a baffle, and the baffle is arranged in the shell and divides the interior of the shell into different layers from bottom to top. A notch is formed in the baffle plate; the gaps are used for communicating different layers to form a flow channel; a low-temperature cooling object is placed in the flow channel and can flow in the flow channel; cryopreservation tube placing holes are formed in the shell and the baffle, and the cryopreservation tube placing holes in the shell correspond to the cryopreservation tube placing holes in the baffle in a one-to-one mode. According to the utility model, the interior of the shell is designed into different layers and is matched with the notches to form a flow channel, so that a low-temperature cooling object in the shell can fully flow and circulate, even if dry ice in contact with the bottom of the tube sublimates, the dry ice at other positions can flow to the position, and the continuous low-temperature state of stem cells is ensured.

This application discloses an air gun structure, including a barrel and a nozzle. The nozzle is rotatably connected to the barrel. The nozzle has multiple injection holes arranged in a circular array. The injection holes are inclined relative to the nozzle, so that the gas ejected from the injection holes can drive the nozzle to rotate relative to the barrel. The air gun structure of this application can achieve a wide diffusion range of dry ice and produce a mist-like ice output, which can quickly remove silicone residue and dirt from the surface of molds.

This invention discloses a dry ice crystal particle, its preparation method, and a ceramic tile, relating to the field of ceramic tile technology. The dry ice crystal particle is prepared from a first flashing frit, a second flashing frit, and a matte frit. Since the dry ice crystal particle is composed of three frits with different refractive indices and firing temperatures, different phases can be formed due to the different firing temperatures of each frit. The differences in light transmittance and refractive index between these phases are then utilized to create a better flashing effect. Simultaneously, the matte glaze serves as a backdrop, further enhancing the display of the flashing effect.

The invention belongs to the field of preparation of electrochemical energy storage materials and new energy materials, and discloses a monocrystal cobalt oxide / carbon composite material synthesized by a high-pressure gas phase as well as a preparation method and application of the monocrystal cobalt oxide / carbon composite material. The method comprises the following steps: (1) dissolving cobalt salt in an organic solvent to obtain a precursor solution; and (2) adding dry ice into the precursor solution, sealing, and carrying out high-pressure gas-phase reaction in an inert gas atmosphere to obtain the monocrystal cobalt oxide / carbon composite material. The composite material is of a rectangular pyramid structure, and the structure sequentially comprises a carbon layer, single crystal cobalt oxide and a carbon matrix rich in micro-mesopores from outside to inside. According to the invention, in-situ synergistic growth of monocrystal cobalt oxide and a conductive carbon matrix is realized, a stable cobalt oxide / carbon heterogeneous interface, a space required by volume expansion of CoO and an excellent conductive network are constructed, the electron conductivity, Na < + > diffusion kinetics and electrode cycling stability are remarkably improved, and the electrochemical performance is excellent. The invention provides a controllable, green and efficient high-pressure gas phase induction synthesis strategy, and is suitable for large-scale preparation of high-performance sodium storage materials.

The invention discloses a dry ice quenching-based sodium-based multi-element metal oxide positive electrode strengthening method, which comprises the following steps: uniformly mixing a metal oxide precursor and a sodium source, heating to a certain temperature in an air atmosphere at a certain heating rate, and sintering for a period of time to obtain a sodium-based multi-element metal oxide; placing the dry ice in a dry sealed chamber, and standing for a period of time to form a quenching chamber; rapidly placing the sodium-based multi-element metal oxide in a quenching chamber, sealing, and then standing and quenching in a vacuum state for a period of time; and carrying out low-temperature tempering heat treatment on the quenched sodium-based multi-element metal oxide in a certain atmosphere for a period of time to obtain the reinforced sodium-based multi-element metal oxide positive electrode material. According to the strengthening method, the dry ice is used as a quenching medium source, the problems of unstable intrinsic structure and high surface alkalinity caused by internal stress accumulation in the synthesis process of the sodium-based multi-element metal oxide are solved, and excellent electricity storage performance and long-acting stability are obtained.

The invention discloses a supercritical CO2 compressor unloading shutdown system and an operation method thereof. According to a compressor unit, supercharging route sections are arranged in a graded mode to be a transcritical supercharging stage route, a sub-high-pressure supercharging stage route and a highest-pressure supercharging stage route. A bypass system comprising a first bypass pipeline, a second bypass pipeline, a third bypass pipeline, a first bypass valve, a second bypass valve and a third bypass valve is correspondingly arranged, an inlet automatic shut-off valve is arranged at an inlet of the compressor, and an outlet automatic shut-off valve and an outlet check valve are arranged at an outlet of the compressor. An automatic emptying valve is arranged at an emptying port of a compressor and at the downstream of an outlet of a highest pressure boosting stage route, opening and closing of all the valves are intelligently controlled through a central control system in communication connection, unloading shutdown operation of a compressor unit is automatically carried out, stable pressure reduction emptying of high-pressure CO2 with the exhaust pressure ranging from 40 MPa to 50 MPa is achieved, and the pressure of CO2 is reduced. And pipeline freezing and blocking caused by liquefaction and dry ice formation in the supercritical CO2 depressurization process are prevented, and safety and stability in the unloading shutdown process are ensured.

The utility model relates to the technical field of curling iron molds, in particular to a multi-layer heating type curling iron mold cooling device which comprises a cooling mechanism, a sealing mechanism is arranged at the top end of the cooling mechanism, the cooling mechanism comprises a mold cavity, a circulation plate is arranged on the outer side of the mold cavity, the outer side of the mold cavity is fixedly connected with the inner side of the circulation plate, and the circulation plate is arranged in the mold cavity. According to the multi-layer heating type hair curling iron mold cooling device, when a motor starts fan blades to rotate, negative pressure is formed behind the fan blades through rotation, carbon dioxide gas generated by sublimation of dry ice in a storage bin is guided into a hollow cavity through an air inlet pipe, at the moment, the carbon dioxide gas generated by sublimation of the dry ice is stored in the hollow cavity, and under rotation of the fan blades, the carbon dioxide gas flows into the air inlet pipe; gas enters the ventilation pipe and is divided into the multiple circulation plates through the ventilation pipe, carbon dioxide gas flows in the hollow columns of the circulation plates through the attachment of the circulation plates and the hollow columns to the mold cavity, cooling of the outer side of the mold cavity is achieved, and the gas is exhausted through the exhaust port.

Presented are passive temperature control systems for thermal management of electrical components, methods for making / using such thermal management systems, and aircraft equipped with smart-material activated temperature control systems for passive cooling of battery modules. A thermal management system is presented for passively cooling an electrical component stored inside a module housing. The thermal management system includes a cooling chamber that movably attaches adjacent a module housing that contains an electrical component, such as a rechargeable battery module. The cooling chamber contains a sublimable cooling agent, such as dry ice. A biasing member biases the cooling chamber away from the module housing. A smart material actuator is attached to and interposed between the cooling chamber and module housing. The smart material actuator extracts thermal energy from the module housing and, once heated to a phase transformation temperature, contracts and thereby pulls the cooling chamber into contact with the module housing.

1. Name of the designed product: complete tableware (Silk Road). 2. Use of the designed product: for containing food. 3. Design points of the designed product: combination of shape and pattern. 4. Picture or photo best indicating the design points: combined state reference drawing. 5. Other circumstances needing explanation: set 1 is a sushi plate; set 2 is a seafood plate; set 3 is a barbecue plate; set 4 is a salad plate; set 5 is a grilled fish plate; set 6 is a pastry plate; set 7 is a vegetable bowl; set 8 is a beef plate; set 9 is a beverage cup; set 10 is a soup bowl; set 11 is a fruit plate; set 12 is a dry ice plate.

The utility model relates to a dry ice cleaning device, and relates to the technical field of equipment cleaning. The dry ice cleaning device comprises a machine frame, a driving mechanism, a hopper, a material distributing plate, a discharging mechanism and a recycling groove, the driving mechanism is arranged on the machine frame, the hopper is connected with the driving mechanism, a first discharging opening and a second discharging opening are formed in the material distributing plate, the driving mechanism enables a discharging opening of the hopper to be switched between the first discharging opening and the second discharging opening, and the discharging mechanism is connected with the recycling groove. The discharging mechanism is in butt joint with the first discharging opening, and the recycling groove is formed below the second discharging opening. When the discharging port of the hopper is in butt joint with the second discharging port, the snowflake-shaped dry ice in the hopper directly falls into the recovery tank from the second discharging port to be collected. When the shape and the cleanliness of the snowflake-shaped dry ice meet the requirements, the discharging opening of the hopper is in butt joint with the first discharging opening, and the workpiece to be cleaned is cleaned. As the driving mechanism can move the hopper, the snowflake-shaped dry ice in the hopper can be output through the discharging mechanism or fall into the recovery tank, and the snowflake-shaped dry ice can be conveniently used by operators.

Solar heat absorption and heat preservation device Solar heat absorption and heat preservation device relates to the field of solar energy application. Mainly to solve the drawbacks and shortcomings of the existing heat absorption and heat preservation technology. In order to solve the problem. The present application provides several kinds of solar heat absorption and heat preservation device. 1, solar heat absorption plate: it mainly has metal water tank, sealing ring, light transmission glass. Put a circle of sealing ring in the metal water tank, put light transmission glass on the sealing ring. The gap between the light transmission glass and the water tank is filled with carbon dioxide or dry ice. Then seal. 2, solar heat preservation and heat absorption water tank: it mainly has heat absorption plate, metal water tank, heat-resistant insulation material, shell and the like. 3, solar steaming and baking device: it mainly has a cube, a cuboid, an irregular polyhedron. One or more faces are heat absorption plates, and the other faces are heat-resistant insulation materials.

The utility model discloses a medical heat preservation box for a low-temperature dry ice temperature area, which comprises a box body, a box cover is hinged to the top of the box body, a dust cover is fixedly arranged at the top of the box cover, an air inlet fan is arranged in the dust cover, and a tray is connected to the bottom of the box cover; the device is characterized in that partition plates are arranged in the box body, driving plates are slidably connected into the partition plates, positioning blocks are symmetrically connected into the partition plates about the center point of the driving plates, and the two positioning blocks are connected with the driving plates through connecting plates. According to the medical heat preservation box for the low-temperature dry ice temperature area, the interior of the box body can be divided into a plurality of independent subareas through the multiple partition plates, different types of medical articles can be conveniently stored in a classified mode, the risk of cross contamination is avoided, and then the medical articles can be conveniently stored by moving the partition plates; and therefore, the size of the internal space of the box body can be adjusted according to the sizes of medical articles, and the medical articles with different sizes can be conveniently stored.

Dry ice shippers with unique structural features designed to deliver optimized performance for preserving one or more perishable items in a presence of dry ice during transport are provided. The improved dry ice shippers exhibit superior properties that overcome the performance limitations of conventional dry ice shippers.