14results about How to "Guaranteed freezing effect" patented technology

The invention discloses a vacuum freeze dryer, particularly relates to the technical field of vacuum freeze drying, and comprises a drying chamber, a refrigerating system, a vacuum system, a heating system, a control system and an energy recovery device. The drying chamber is used for containing materials, the inner wall of the drying chamber is made of efficient heat insulation materials, the refrigerating system comprises a high-precision temperature sensor and an intelligent temperature controller, the refrigerating temperature fluctuation is accurately controlled within + / -1 DEG C, the vacuum degree fluctuation of the vacuum system is kept within + / -5Pa through a vacuum degree sensor and a stabilizing device, and the heating system adopts uniform heating elements. And it is ensured that the heating temperature nonuniformity is smaller than + / -1 DEG C, a control system achieves automatic drying, and an energy recovery device recovers waste cold and waste heat for other links. The problems that an existing vacuum freeze dryer is low in temperature control precision, unstable in vacuum degree, low in automation degree, low in energy utilization rate and the like are solved, the material quality can be effectively kept, the drying efficiency is improved, and energy consumption is reduced.

The invention belongs to the technical field of battery module recycling, and particularly discloses a waste lithium battery module glue removing device which comprises a pre-cooling cabin, a glue removing cabin and a glue removing cabin, the spraying cabin is used for spraying a chemical solvent on the frozen battery module; the mixer is used for preparing a chemical solvent; the chemical storage tank is used for storing a chemical solvent and conveying the chemical solvent into the spraying cabin; the screening cabin is connected with the spraying cabin through a transmission system, screens with different pore diameters are arranged in the screening cabin, and the screening cabin is used for separating a battery module and glue residues; and the control system is respectively connected with the pre-cooling cabin and the spraying cabin, and the control mode of the control system is divided into a first glue removing mode and a second glue removing mode by the control system based on the adhesive property of the battery module. According to the method, the battery module containing the adhesive is frozen in advance, and a chemical solvent spraying technology is combined, so that the adhesive of the battery module can be removed more efficiently, safely and environmentally.

The present invention belongs to the technical field of battery module recycling, and specifically discloses a waste lithium battery module degumming device, including: a precooling cabin, used to freeze the battery module to be processed; a spray cabin, used to spray the frozen battery module with chemical solvent; a mixer, used to configure the chemical solvent; a medicine storage tank, used to store the chemical solvent and send the chemical solvent to the spray cabin; a screening cabin, connected to the spray cabin through a transmission system, and provided with screens with different apertures inside the screening cabin for separating the battery module and the glue residue; a control system, respectively connected to the precooling cabin and the spray cabin, and the control system divides the control mode of the control system into a first degumming mode and a second degumming mode based on the adhesive properties of the battery module. The present invention pre-freezes the battery module containing adhesive and combines it with the chemical solvent spraying technology to achieve more efficient, safe and environmentally friendly battery module adhesive removal.

The invention discloses a cardiac surgery freezing defibrillator, and belongs to the technical field of medical instruments, the cardiac surgery freezing defibrillator comprises a handle, a heat preservation pipe mounted at the end of the handle, a discharge pipe located in the heat preservation pipe and a freezing cap mounted at the end of the heat preservation pipe, and an angle adjusting mechanism is arranged between the end of the heat preservation pipe and the freezing cap; a diffusion mechanism is arranged at the end, close to the freezing cap, outside the heat preservation pipe. An extraction mechanism composed of a syringe, a liquid extraction pipe, a discharge pipe, a first piston and a pull rod is arranged in a handle, and is matched with an elastic assembly composed of a first spring and a positioning plate and a positioning mechanism composed of a mounting groove, a trapezoidal insertion block, an insertion groove, a third spring, a buckle plate and a connecting rope for use, so that in the freezing process, the liquid extraction pipe is not prone to falling off; the liquid nitrogen can be directly extracted to quickly freeze, and in addition, the extraction amount of the liquid nitrogen can be quantitatively controlled according to the stretching length of the pull rod, so that the freezing temperature is controlled, and the freezing effect is ensured.

The utility model discloses a refrigerator freezing drawer, which relates to the technical field of refrigerator drawers and comprises a drawer body, an extension cover is fixedly arranged at the bottom end of the outer side wall of the drawer body and is of a hollow boss structure, and a plurality of drain holes are formed in the inner side wall of the drawer body in a surrounding manner. And one end of the drainage hole extends into the extension cover. The extending cover is arranged at the bottom end of the drawer body, the drainage hole is formed between the drawer body and the extending cover, water carried by food can flow into the extending cover through the drainage hole after seeping out, and therefore the situation that the food is difficult to take out due to water freezing can be avoided; the air inlet is formed in the top end of the drawer body and matched with the exhaust hole, in-out circulation of cold air can be achieved, and the freezing effect of food materials is guaranteed.

The utility model relates to a heat preservation box, and belongs to the technical field of heat preservation equipment, the heat preservation box comprises an outer box with a forward opening, and a drawer type inner box slidably arranged in the outer box; a first magnetic strip is arranged at the upper edge of an opening of the outer box, a second magnetic strip is arranged at the top of a front baffle of the drawer type inner box, and the first magnetic strip and the second magnetic strip are matched to achieve sealing of the closed state of the heat preservation box; partition plates used for forming object containing subareas are further arranged in the drawer type inner box, and the box wall of each object containing subarea is provided with a side pocket structure used for containing an ice plate. In order to meet the requirement for selling frozen products in the vending machine, the heat preservation box is arranged in the vending machine to effectively provide a required frozen product storage area. By the adoption of the heat preservation box, the requirement for temporarily selling frozen products in the vending machine can be effectively met with low cost.

The invention discloses a freezing device for avoiding air blockage at the tail end of a pipe in freezing construction, which comprises a liquid supply pipe and a freezing pipe, the liquid supply pipe is inserted into the freezing pipe from the pipe orifice of the freezing pipe and extends to the pipe bottom of the freezing pipe, and the liquid supply pipe is communicated with the freezing pipe through fluid; the freezing device further comprises a tail end partition plate and a saline water channel pipe, the tail end partition plate is installed on the portion, inserted into the freezing pipe, of the liquid supply pipe, and the outer circumferential face of the tail end partition plate is matched with the inner wall of the freezing pipe in a sealed mode. By means of the specific structural design, it is ensured that low-temperature saline water can fully fill the whole freezing pipe, especially the tail end of the pipe, the gas blocking phenomenon is avoided, and the effective freezing distance and the freezing effect of the freezing pipe are ensured.

The utility model relates to the technical field of liquid nitrogen storage auxiliary devices, and particularly discloses a narrow-mouth liquid nitrogen tank cryopreservation basket convenient to rotate, the narrow-mouth liquid nitrogen tank cryopreservation basket convenient to rotate comprises a hanging assembly and a basket body, the hanging assembly comprises a stand column and a hanging handle rotationally connected to the upper end of the stand column, and a connecting block arranged in the longitudinal direction is welded to the lower end of the stand column; a supporting block is transversely welded to the lower end of the connecting block, a rotary supporting plate is movably connected to the longitudinal side wall of the connecting block, and a sliding groove is formed in the middle of the rotary supporting plate; the basket is slidably connected into the sliding groove of the rotary supporting plate, the upper end of the basket is fixedly connected with a connecting column with an internal thread in the vertical direction, the connecting column is arranged on the side, away from the stand column, of the basket, the upper end of the connecting column penetrates through the sliding groove, the connecting column is in threaded connection with a shifting rod, and the upper end of the shifting rod is provided with a connecting piece detachably connected with the stand column. The purpose of the utility model is to solve the problem that a basket which is placed later in an existing narrow-mouth liquid nitrogen freezing tank is easy to collide with a basket which is placed first in the rotating process.

The embodiment of the invention provides a preparation and purification method and application of methyl fatty acyl sodium taurate. The preparation and purification method comprises the following steps: reacting sodium methyl taurate with fatty acid to obtain a reacted material; deacidifying the reacted material to obtain a methyl fatty acyl sodium taurate crude product; dissolving the methyl fatty acyl sodium taurate crude product in water to obtain a methyl fatty acyl sodium taurate solution; adjusting the pH value of the methyl fatty acyl sodium taurate solution to 7.0-9.0; adding the methyl fatty acyl sodium taurate solution of which the pH is adjusted into a jacketed static mixer; the jacket type static mixer cools the methyl fatty acyl sodium taurate solution to obtain a solid-liquid mixture; and dehydrating and drying the solid-liquid mixture to obtain methyl fatty acyl sodium taurate. According to the preparation and purification method, no organic solvent is needed for purification, operation is convenient, the material precipitation time is short, the material precipitation recovery rate is high, and meanwhile the prepared product is higher in purity.

The invention provides a hoisting device for a ship shaft sleeve. The hoisting device comprises a conveying rail mechanism, a sliding hoisting mechanism and an auxiliary supporting mechanism. The conveying track mechanism comprises a first fastening bolt, a special-shaped connecting lock catch and a steel cable; the special-shaped connecting lock catches are arranged at the starting point and the terminal point of the conveying rail mechanism correspondingly and used for being connected with a reinforcing structure on the inner wall of a cabin. The steel cable is connected between the special-shaped connecting lock catches and arranged in the length direction of the conveying rail mechanism. The sliding hoisting mechanism comprises two sliding pieces, and hoisting rings are arranged at the bottoms of the sliding pieces and used for being connected with ship shaft sleeves. The auxiliary supporting mechanism provides auxiliary supporting force for the ship shaft sleeve in the installation process. The ship shaft sleeve can be rapidly and accurately installed, the installation time is saved, the freezing effect is guaranteed, and therefore the installation precision of the ship shaft sleeve can be guaranteed; the situation that temporary hanging weights are welded for hoisting and lightering is avoided; and the building quality and the building period of the ship are improved.

The present application relates to the model test and engineering application technology field of artificial stratum freezing, and discloses a use method of a three-pipe winding type double-mode freezing device capable of accurately measuring temperature and controlling heat transfer process, which is used for flowing back to the ground from a liquid return pipe after low-temperature refrigerant flows into a liquid supply pipe of the freezing device, and flowing back to a liquid return device of a ground circulation system, so that the circulation process of the low-temperature refrigerant in the freezing device is completed; the three-pipe winding type double-mode freezing device comprises a liquid supply pipe, a temperature measuring steel pipe and a liquid return pipe; the temperature measuring steel pipe is installed between the liquid supply pipe and the liquid return pipe, the liquid return pipe and the liquid supply pipe are wound with each other, and the bottom ends of the liquid return pipe and the liquid supply pipe are connected to form a liquid refrigerant circulator. The direct connection mode of the liquid supply pipe and the liquid return pipe is adopted, the phenomenon that a refrigerant circulation blind area appears at the bottom of the freezing device is avoided, the freezing device is formed when the liquid supply pipe and the liquid return pipe have a smaller diameter, and the influence of the thickness of the liquid supply pipe wall on the refrigerant circulation space is reduced.

The application provides an underwater butt joint reinforcement method in a high water pressure and strong permeation stratum, relates to the field of shield construction, is suitable for underwater butt joint engineering of two large-diameter shield machines, has high safety for high water pressure and strong permeation strata, effectively meets special working conditions of limited underwater construction space, and specifically comprises the following steps: step 1, a plurality of radial grouting holes are arranged in a middle shield of the shield machine, a water stop curtain is formed around the shield machine through radial grouting, and a closed construction environment is provided for subsequent construction; step 2, a plurality of groups of inclined grouting holes are pre-buried on the shield shell, advanced grouting reinforcement is carried out, and the stratum is improved to facilitate the formation of a frozen wall; step 3, after the advanced grouting is completed, a freezing pipe is inserted into the inclined grouting hole to carry out freezing reinforcement; step 4, a pressure relief hole is reserved on the shield machine, the pressure relief hole is inclined through a shield air bubble bin, and the pressure relief hole is used to control the frost heaving force and the frost heaving amount; and step 5, after the freezing is completed, whether water leakage occurs is observed through the pressure relief hole to detect the freezing quality.

The present invention relates to the field of plastic recycling, and in particular to a special pulverizer for plastic recycling, comprising a pulverizing box, and a placement component and a quick-freezing component installed inside the pulverizing box, a top plate fixedly installed inside the top of the pulverizing box, a driving component arranged on the top of the top plate, a plurality of arc-shaped slot seats fixedly installed on the bottom of the top plate, a convergence frame fixedly installed inside the pulverizing box, two pulverizing rollers rotatably installed inside the pulverizing box, a transmission box installed at one end of the two pulverizing rollers, and a drive motor 2 fixedly installed at the end of the transmission box away from the pulverizing rollers. The present invention can open the release plate at the bottom of the placement frame to release the soft glue after quick freezing, and the soft glue enters between the two pulverizing rollers after being guided by the convergence frame, and is pulverized by the two rotating pulverizing rollers. The soft glue after quick freezing has a certain brittleness, and the pulverizing effect is better, and it will not be entangled and bonded to the surface of the pulverizing roller, thereby ensuring the pulverizing effect and improving the pulverizing efficiency.

The utility model relates to the technical field of hematopoietic stem cell storage, in particular to a hematopoietic stem cell blood bag cryopreservation box which comprises a box body. The placing mechanism is arranged on the box body, the placing mechanism comprises two fixing blocks and a plurality of fixing boxes, through cooperation of a fixing frame, a hasp lock and the like, the multiple fixing boxes can be conveniently limited and fixed, cooperation of the fixing boxes, a cover plate, a protection cushion and the like is facilitated, blood bags are clamped and placed, and damage caused by collision of the blood bags is avoided; one blood bag can be independently taken out conveniently when the blood bags are taken out, a large amount of nitrogen is prevented from being released, nitrogen is further saved, through cooperation of a spring, a limiting block, a pull ring and the like, a cover plate can be conveniently limited and fixed, people can conveniently open or close the cover plate, then the blood bags are taken out, practicability is improved, liquid nitrogen is injected into a liquid nitrogen box through a liquid inlet, and use is convenient. Nitrogen can conveniently penetrate through the multiple air holes to freeze the two sides of the blood bag, and the freezing effect of the blood bag is guaranteed.