48 results about "Cold treatment" patented technology

The invention discloses an ejector pin anti-fatigue strengthening method based on multi-section variable-temperature treatment, and relates to the technical field of ejector pin anti-fatigue strengthening, and the ejector pin anti-fatigue strengthening method comprises the following steps: austenitizing high-temperature quenching: heating an ejector pin to an austenitizing temperature, and then carrying out zoned cooling on the ejector pin; medium-temperature tempering and thermal-state mechanical strengthening are conducted, specifically, the ejector pin is tempered at the medium-temperature tempering temperature, and thermal-state shot blasting or laser shock is conducted on the ejector pin in the heat preservation period or after heat preservation is completed; intermediate low-temperature plasma nitriding: carrying out plasma nitriding in a nitrogen-hydrogen gas environment; subzero treatment: placing the ejector pin in liquid nitrogen; and finally, low-temperature tempering and cold-state mechanical strengthening are conducted. Through multi-section temperature gradient treatment, phase change distribution control over different temperature sections is achieved, too high internal stress and brittleness generated by one-time quenching are avoided, sudden size change and hot cracks induced by phase change are prevented, a controllable surface-core hardness and toughness gradient is formed, the surface crack initiation tendency is reduced, and the surface quality is improved. And the consistency and controllability of anti-fatigue basic conditions are improved.

The utility model discloses a kind of steel wire surface coating machines, belong to coating machine technical field, including box, the front end surface of box is rotatably provided with swing door, surface of swing door is through and is provided with air hole, the inside fixed setting of air hole has first filter screen, the left side top of box is fixedly installed with control panel, the inside of box is sequentially provided with coating cavity, heat treatment cavity and cold treatment cavity from left to right by multiple partition plates, second guide hole is communicated and is opened between coating cavity and heat treatment cavity.The utility model through the structural design of first filter screen, air hole, second filter screen, through slot, fan, support plate, third filter screen, fixed cavity, air pump, pipe, spray head, air inlet, heating block, fourth filter screen and air outlet, can be realized to be convenient for steel wire to be heated and dried, it can be realized to be convenient for steel wire after heat drying treatment to be cold treated simultaneously, so heat stress can be eliminated, and then the overall quality and durability of coating are improved.

The present application relates to anthocyanin extraction technical field, disclose a kind of berry anthocyanin extraction equipment and extraction method, extraction equipment includes: extraction machine, the working area of extraction machine is provided with fruit juice cold filtering mechanism, for cold treatment berry and realize efficient extraction;Fruit juice cold filtering mechanism includes four vertical setting mid vertical tube, cloth bag and supply suction liquid component;Wherein: four mid vertical tubes are fixed in matrix in the center position of extraction machine working area, form stable support structure;Mid vertical tube top and limiting disc form rigid connection, bottom is fixedly arranged bottom disc by welding mode;Supply suction liquid component is connected with four mid vertical tubes;Limiting disc is rotatably provided with bevel gear disc outside by bearing assembly, form rotary drive structure;The present application is by setting fruit juice cold filtering mechanism, using 0 to 5 ℃ low temperature extraction liquid and pure water form high pressure cold vortex flow, while physically crushing berry, effectively avoid the damage of high temperature to anthocyanin activity.

This invention discloses a method for dynamic monitoring of dissolved oxygen and identification of oxidation risks throughout the entire fermentation process of specialty berry wines. For seven berry species—blueberry, raspberry, mulberry, blackberry, black chokeberry, red dragon fruit, and blackcurrant—dissolved oxygen data is systematically collected at 13 key stages, including crushing, fermentation, filtration, fining, aging, cold treatment, and bottling, to create a "dissolved oxygen dynamic spectrum" for each variety. By analyzing the peak dissolved oxygen levels and their rates of change, crushing, fining, cold treatment, and bottling are identified as four high-risk oxidation stages. Furthermore, based on the rate of dissolved oxygen decrease after crushing, the seven berry species are categorized into three types: oxidation buffering, oxidation consuming, and rapid oxygen consuming. This invention achieves a multi-variety, full-chain systematic assessment of oxidation risks, providing a quantitative basis for precise oxidation control in specialty berry wines.

The utility model discloses a blow-drying device for cold treatment of a roller, which comprises a shell, support legs are welded at four corners of the bottom end of the shell, a first support frame and a second support frame are sequentially and fixedly connected to the top end of the shell, a water cooling fan is clamped in the first support frame, an air cooler is clamped on the second support frame, and the water cooling fan is connected with the air cooler. A cooling conveying device is arranged below the first supporting frame, so that the roller can be completely immersed in cooling liquid in the shell to be conveyed, waste of the cooling liquid is avoided, uniform cooling of the roller is achieved, and continuous and efficient cooling treatment is achieved under the assistance of a water cooling fan. The residual cooling liquid on the surface of the roller soaked and cooled through the cooling liquid is drained in time, surface moisture blow-drying is achieved in the blow-drying step of the air cooler, and the overall cooling efficiency of the roller is improved.

This utility model discloses a flue gas carbon dioxide membrane adsorption purification device, relating to the field of carbon dioxide membrane adsorption technology. The utility model includes a cold treatment structure comprising a membrane adsorption purification cylinder, a second mixing cylinder connected to the membrane adsorption purification cylinder via a pipe, a first mixing cylinder connected to the second mixing cylinder via a pipe, a pre-cooling cylinder located on one side of the first mixing cylinder, a cooling cylinder and a drying cylinder located below the pre-cooling cylinder and connected via a pipe, a liquid nitrogen tank located in front of the cooling cylinder, a spiral tube connected to the output end of the liquid nitrogen tank and spirally distributed inside the cooling cylinder, a desiccant located inside the drying cylinder, and an air inlet pipe connected to the pre-cooling cylinder and the first mixing cylinder; and a mixing structure comprising an installation shaft located inside the first mixing cylinder and multiple sets of stirring rods arranged in a ring array inside the first mixing cylinder. This utility model, by setting a cold treatment structure, solves the problem that polymer membranes are easily deformed by heat during carbon dioxide membrane adsorption purification, affecting the stability of membrane adsorption purification.

The present application relates to the field of illumination and modified atmosphere combined preservation technology, and discloses a method for preserving litchi and maintaining Vc of litchi by using LED illumination combined with modified atmosphere packaging. The method comprises the following steps: picking fresh litchi, immediately screening out litchi without disease and insect pests and mechanical damage, retaining complete fresh branches and leaves, and precooling the screened litchi; after the precooling of the litchi, the dry end of the litchi is immersed in a nutrient supplement hydrogel, the litchi is placed flat, is packaged by using a fruit and vegetable film, and a slow-release antibacterial sheet is arranged inside; the packaged litchi is placed in a thermostat with an ambient temperature of 4-10 DEG C and a humidity of 85-95% for preservation, and the illumination intensity of white light or red and blue light is 70-90 μmol·m ‑2 ·s ‑1 The present application uses red and blue light combination, white light illumination to promote photosynthesis to form an internal microcirculation system for low-temperature storage for the first time to preserve litchi, effectively prevents loss of nutritional ingredients, and can also increase the vitamin C content of litchi to a certain extent.

The invention belongs to the technical field of refrigerator fault detection, and particularly relates to a refrigerator electromagnetic valve fault detection method and system and a server. The method comprises the steps that the working state of the defrosting heater is obtained, wherein the working state comprises a starting state and a stopping state; when it is monitored that the working state of the defrosting heater is switched from the starting state to the stopping state, first temperature data are obtained, and the first temperature data are temperature data of an evaporator; according to the first temperature data, it is determined that defrosting treatment of the refrigerator is finished; responding to the end of defrosting treatment of the refrigerator, and controlling the refrigerator to execute refrigeration treatment; second temperature data are obtained, wherein the second temperature data are temperature data of the refrigeration evaporator within a preset time period from the first starting moment of self-made cold treatment; and the fault state of the electromagnetic valve is judged according to the second temperature data. The problem of fault misjudgment of the electromagnetic valve caused by frost blockage interference is avoided, and the accuracy and reliability of fault detection of the electromagnetic valve of the refrigerator are improved.

The invention belongs to the technical field of wastewater treatment, and particularly relates to a recycling method of coal chemical industry conversion high-ammonia-nitrogen wastewater, which comprises the following steps: S1, diluting the coal chemical industry conversion high-ammonia-nitrogen wastewater by at least one time to obtain diluted wastewater, and carrying out oxidation treatment to obtain first treatment liquid; s2, performing cold treatment on the first treatment liquid to obtain ammonium carbonate and a second treatment liquid; s3, performing carbonization treatment on the second treatment solution to obtain ammonium bicarbonate and a third treatment solution; and S4, carrying out ammonium sulfate treatment on the third treatment liquid to prepare ammonium sulfate. According to the recycling method of the high-ammonia-nitrogen wastewater provided by the embodiment of the invention, effective components in the wastewater are recycled step by step through a simple hierarchical recycling process, so that the treatment problem of the high-ammonia-nitrogen wastewater is effectively solved, the treatment cost of the wastewater is reduced, and the resource utilization of the wastewater is also realized.

The invention discloses a method for inducing gynogenesis of Sinilabeo notabilis by white crucian carp sperms and application thereof, and the method for inducing gynogenesis of Sinilabeo notabilis by white crucian carp sperms comprises the following steps: (1) collecting and diluting white crucian carp sperms, and then carrying out inactivation treatment by ultraviolet lamp irradiation; (2) mixing the inactivated seminal fluid of the carassius auratus and the inactivated mature eggs of the sinilabeo nolatus, performing dry insemination, then pouring the mixture into cold water for treatment, putting fertilized eggs into a normal-temperature water incubation tank for incubation after cold treatment is finished, and keeping running water to enable the fertilized eggs to float along with water flow and not to sink to the bottom; and (3) after fry are hatched from the fertilized eggs, culturing to obtain gynogenetic sinilabeo nolabeo. According to the method, the carassius auratus sperms are adopted to induce the gynogenesis of the semilabeo nolabeo to successfully breed and obtain the gynogenesis semilabeo nolabeo offspring, which is the first time in the artificial induction gynogenesis and germplasm improvement of the semilabeo nolabeo. In the breeding process, it is found that the 6-month-old semilabeo notabilis has the advantages that the growth speed is high, and the low-temperature resistance is remarkably higher than that of the parent semilabeo notabilis.

The utility model discloses an intelligent beany flavor removing and oil pressing device with the cooperation of extrusion and subzero treatment, relates to the technical field of oil pressing equipment, and solves the problems that a traditional soybean oil pressing process is low in automation degree and poor in beany flavor removing effect. The soybean oil pressing machine comprises a rack, an extruding and puffing device, a subzero treatment device, an intelligent control system and a soybean oil pressing device, wherein the extruding and puffing device, the subzero treatment device, the intelligent control system and the soybean oil pressing device are all arranged on the rack; a discharge hole of the extrusion puffing device is connected with an inlet of the subzero treatment device through a conveying belt; an outlet of the subzero treatment device is communicated with an inlet of the soybean oil pressing device through a conveying pipeline; the intelligent control system is in signal connection with the extrusion puffing device, the subzero treatment device and the soybean oil pressing device and controls the devices to operate. According to the utility model, soybeans are treated through a subzero treatment technology, so that the beany flavor is effectively reduced; meanwhile, intelligent control over the whole system is achieved through the intelligent control system.

The utility model discloses a high-temperature material laying cooler which comprises a cooling box and a hopper arranged at the feeding end of the cooling box, a material conveying mechanism and a refrigerant storage device are arranged in the cooling box, and the material conveying mechanism is arranged between the feeding end and the discharging end of the cooling box. The material conveying mechanism is used for uniformly paving materials conveyed into the cooling box by a hopper in the conveying direction of the material conveying mechanism, so that the cooling contact area is effectively increased, and uniform cooling can be realized; the refrigerant storage device is arranged on the side, opposite to the materials, of the material conveying mechanism, and a cold medium for conducting heat exchange on the materials is stored in the refrigerant storage device, so that shock cooling treatment is achieved. Compared with an existing stirring type cooling structure, a better cooling effect is achieved, and the consistency of the performance of a final product can be guaranteed.

The present application belongs to the field of plant tissue culture and genetic transformation, and particularly relates to a method for establishing a regeneration system of green moss seeds and a genetic transformation method. The subculture medium of the method for establishing the regeneration system of the green moss seeds contains proline and kinetin. The resistant subculture medium of the genetic transformation method of the green moss seeds contains proline and kinetin, and the first and second resistant screening media contain proline and vitamin C. The genetic transformation method of the green moss seeds comprises the steps of cold treatment, vacuum treatment and dry treatment of callus. The subculture medium of the regeneration system of the green moss seeds is optimized, the regeneration efficiency is high, and a large number of regenerated plants can be obtained; the green moss genetic transformation system of the present application can obviously distinguish between the successfully transformed and unsuccessfully transformed experimental materials through twice resistant screening, and the identification accuracy is high.

The present application provides a curry sauce, comprising: 85-90 parts by mass of soybean oil, 35-40 parts by mass of chopped chili pepper, 10-15 parts by mass of dehydrated coriander, 8-10 parts by mass of edible salt, 8-10 parts by mass of white granulated sugar, 5-12 parts by mass of monosodium glutamate, 4-10 parts by mass of raw garlic, 2-4 parts by mass of erythritol, 2-4 parts by mass of raw ginger, 1.5-2.0 parts by mass of oyster sauce, 1.5-2.5 parts by mass of chicken essence, 0.4-0.6 parts by mass of yeast extract, 0.6-0.8 parts by mass of capsaicin, and 0.1-0.3 parts by mass of capsicum red pigment. The two-step process of "cold treatment plus color protection agent and synergistic rehydration, low-temperature frying and fresh-keeping" is adopted for the dehydrated coriander, and the rehydration link uses a compound solution of erythritol, concentrated lemon juice and erythorbic acid to achieve the four effects of color protection, crispness preservation, taste retention and shelf life extension. By controlling the process parameters and taking advantage of the compound components, the unstable quality and short shelf life of the rehydrated coriander are solved.

The application discloses a mechanical watch escapement wheel heat treatment processing technology, comprising the following steps: step one, cleaning; step two, preheating; step three, heating; step four, processing; step five, quenching; step six, tempering; step seven, air cooling; step eight, deep cooling; step nine, detection; wherein in the above step one, the semi-finished escapement wheel made of 42CrMo material is placed in an ultrasonic cleaning device, the surface residual impurities of the semi-finished escapement wheel are removed by using the ultrasonic principle, and after the removal is completed, the semi-finished escapement wheel is taken out, then the semi-finished escapement wheel is evenly placed in a draining tray, and the draining tray with the semi-finished escapement wheel is placed in a dry drying room for draining and drying treatment; the application eliminates the stress generated by the escapement wheel by deep cooling treatment before finishing, thereby improving the quality of the escapement wheel and prolonging the service life of the escapement wheel.

The invention relates to the technical field of anthocyanin extraction, and discloses berry anthocyanin extraction equipment and an extraction method.The extraction equipment comprises an extraction machine, and a fruit juice cold filtering mechanism is arranged in a working area of the extraction machine and used for conducting cold treatment on berries and achieving efficient extraction; the fruit juice cold filtering mechanism comprises four middle vertical pipes which are vertically arranged, a cloth bag and a liquid pumping assembly; wherein the four middle vertical pipes are fixed at the central position of a working area of the extractor in a matrix manner to form a stable supporting structure; the top of the middle vertical pipe is rigidly connected with the limiting disc, and the bottom is fixedly provided with the chassis through welding. The liquid supply and extraction assembly is connected with the four middle vertical pipes; the limiting disc is rotationally sleeved with a conical tooth disc through a bearing assembly, and a rotary driving structure is formed. By arranging the fruit juice cold filtering mechanism, a low-temperature extracting solution of 0-5 DEG C and purified water are utilized to form high-pressure cold vortex water flow, and damage of high temperature to activity of anthocyanin is effectively avoided while berries are physically crushed.

The utility model relates to the technical field of subzero treatment, and discloses subzero treatment equipment which comprises a cold treatment box, the inner wall of the cold treatment box is fixedly connected with a storage plate, and an anti-adhesion mechanism is arranged on the cold treatment box; the anti-adhesion mechanism comprises two sliding blocks and a bidirectional threaded rod, the two sliding blocks are connected to the storage plate in a relatively sliding mode, and arc-shaped blocks are fixedly connected to the tops of the two sliding blocks. The first motor is started to drive the bidirectional threaded rod to rotate, the bidirectional threaded rod drives the two sliding plates to horizontally and relatively move under limiting of the limiting sliding rods, the sliding plates move to drive the sliding blocks to slide in the sliding holes, then the arc-shaped blocks on the tops of the sliding blocks move, and materials bonded with the storage plate are upwards jacked and separated; the damage or deformation of the material possibly caused by directly and forcibly taking down the material is avoided, and the material is convenient to take and place.

The application discloses a heat treatment method for improving the strength and toughness of ultrahigh-strength martensite aging stainless steel, and belongs to the technical field of metal heat treatment.The method is characterized in that, after homogenizing forging of the martensite aging hardening stainless steel, a pre-aging process and a deep cooling process are added between a solid solution treatment process and a long-time aging treatment process, and a deep cooling treatment is additionally added after the long-time aging treatment process.The method specifically comprises the following steps: (1) solid solution treatment; (2) first deep cooling treatment; (3) pre-aging treatment; (4) second deep cooling treatment; (5) long-time aging treatment; and (6) third deep cooling treatment.The heat treatment method of double-aging process+three deep cooling processes solves the problem of the compromise between the precipitation degree of precipitated phases and the content and morphology of austenite under the existing heat treatment process technology, and finally, the martensite stainless steel with ultrahigh strength and ultrahigh toughness is obtained.

The invention relates to the technical field of tea processing, and discloses an orange osmanthus apocynum venetum tea scenting process which comprises the following steps: baking apocynum venetum until the moisture content of the apocynum venetum is 6-7%, and cooling the apocynum venetum to obtain pretreated apocynum venetum; the method comprises the following steps: thinly spreading picked orange osmanthus flowers for 2-4 hours to remove 5-15% of moisture, so as to obtain pretreated orange osmanthus; uniformly mixing the pretreated apocynum venetum and the pretreated orange osmanthus according to a preset proportion to obtain a camellia mixture, the orange osmanthus fresh flowers and the apocynum venetum are blended and treated by adopting a scenting process, so that the aromatic characteristic of the orange osmanthus and the characteristic of the apocynum venetum are combined, and a composite tea product with harmonious flavor and stable smell is formed; the orange osmanthus and apocynum venetum tea has a relatively balanced characteristic on the overall property, the drinking experience can be improved, and the taste, aroma and overall flavor of the orange osmanthus and apocynum venetum tea are easier to accept through reasonable blending and process control.

The present application provides a kind of tobacco seedling cold tolerance grading identification method, comprising the following steps: S1, after sterilization of tobacco seed, sowing and cultivation, obtain tobacco seedling;S2, the obtained tobacco seedling is transplanted to nutrient medium, sets up control group and cold treatment group;S3, the tobacco seedling population subjected to low temperature stress is carried out cold injury index investigation;S4, the relative activity of multiple physiological and biochemical indexes of each tobacco material in the cold resistance candidate population is determined;S5, according to the comprehensive evaluation value, the cold resistance of tobacco material in the cold resistance candidate population is accurately sorted and finally graded;The present application effectively solves the core pain point that the existing tobacco seedling cold tolerance identification technology cannot consider high-throughput screening efficiency and identification result accuracy, overcomes the technical defects of traditional method phenotype identification subjective error, high cost of full amount of physiological index determination, multi-index evaluation system is not standard, and the technical defects that the distinguishing degree of medium cold resistance material is insufficient.

The invention discloses a niobium-vanadium microalloyed bolt composite heat treatment process. The process comprises the following steps: step 1, raw material pretreatment and component verification; step 2, gradient preheating treatment; 3, multi-section austenitizing heating is carried out; step 4, carrying out segmented isothermal precooling treatment; 5, double-medium segmented quenching treatment is carried out; step 6, intermediate tempering and stress release; seventhly, subzero treatment strengthening is conducted; 8, gradient final tempering treatment is carried out; ninthly, finished product cleaning and performance detection are conducted; according to the method, through multi-section austenitizing heating and gradient tempering, sufficient dissolution and dispersive precipitation of niobium-vanadium microalloy elements are achieved. The temperature system is designed according to the dissolution characteristics of vanadium and niobium elements in the double-stage austenitizing, and it is ensured that the two elements are completely fused into an austenite matrix; the gradient final tempering provides multi-level nucleation and growth conditions for a precipitated phase, the precipitation strengthening effect is remarkably improved, and the problem that the element utilization rate of an existing process is low is solved.

The application provides an inductive vacuum carburizing heat treatment process and device, and the inductive vacuum carburizing heat treatment process comprises the following steps: S10, inductive heating is performed on a workpiece, and the workpiece is heated to a quenching temperature, and the inductive heating is performed under mixed gas; S20, the workpiece obtained in S10 is subjected to cooling treatment; S30, the workpiece obtained in S20 is subjected to cryogenic treatment; the inductive heating comprises the following steps: S11, vacuumizing, mixed gas is introduced, and heating is performed through an induction power supply; S12, the S11 is repeatedly operated multiple times; the mixed gas is composed of acetylene and nitrogen, and the ratio of the acetylene and the nitrogen is 2:3. The application solves the technical problem that the existing continuous inductive heat treatment process is prone to reducing the hardness and wear resistance of the workpiece, and through changing the surface treatment layer structure of the workpiece, the technical effect of improving the hardness and wear resistance of the workpiece is achieved.

The invention relates to the technical field of part repairing, and particularly discloses a PH13-8Mo thrust pin part damage repairing method which comprises the steps that the damaged position on a part is polished, and a to-be-repaired area is formed; performing powder-based laser cladding repair on the to-be-repaired area; after laser repairing is completed, the part is subjected to cold treatment, and the cold treatment temperature ranges from-85 DEG C to-80 DEG C; and carrying out heat treatment on the cold-treated part, putting the part into a vacuum heat treatment furnace, vacuumizing to 0.001 Pa or below, heating to 505-515 DEG C at a heating rate of 10-15 DEG C / min, carrying out heat preservation for 50-70 minutes, carrying out furnace cooling to 100 DEG C or below at a cooling rate of 0.6-0.8 DEG C / min, and then taking out the part. And the same material is used for laser cladding repair, so that the adaptability of the material is good, and the repaired part has no defect. A specific heat treatment process is adopted, the problem that the structure hardness of a repaired area is low is effectively solved, the matrix hardness is synchronously improved, the tensile strength after repair is superior to that of a state before repair, the impact absorption energy after repair reaches 95% or above, and no obvious oxidation color exists on the surface of a part.

The invention relates to the technical field of metal heat treatment, in particular to a nut surface strengthening heat treatment method and a nut. The treatment method comprises the following steps that S1, ultrasonic impact treatment is conducted on the working surface of the nut; s2, the austenitizing critical temperature of the working surface is tested; s3, the nut is subjected to quenching treatment with the temperature 20-30 DEG C higher than the austenitizing critical temperature of the working surface as the quenching temperature; and S4, subzero treatment and tempering treatment are conducted on the nut. According to the method, the working surface is subjected to ultrasonic impact treatment before quenching heating, the structure form of the nut is locally changed, the austenitizing critical temperature of the working surface is reduced, the heating temperature during quenching is reasonably controlled, and the local quenching effect can be achieved under the condition of overall heating in a furnace; and an ideal gradient organization structure with the high hardness of the working surface and the high toughness of the annular solid bearing area is obtained, and the service life of the nut can be remarkably prolonged.

The invention provides a cryogenic treatment process method and system. The cryogenic treatment process method comprises the following steps: reducing a 18Ni-Cu material test piece from room temperature to 113K by adopting air compression refrigeration; s2, soaking the 18Ni-Cu material test piece cooled in the step S1 into liquid nitrogen, reducing the temperature of the 18Ni-Cu material test piece to 77K, and keeping the temperature for at least 30 minutes; s3, the 18Ni-Cu material test piece soaked in the step S2 is heated to the normal temperature through forced convection air cooling heat exchange; and repeating the steps S1 to S3 for at least three times. The 18Ni-Cu material is subjected to subzero treatment, austenite in the 18Ni-Cu material is converted into martensite, and the dimensional stability of the 18Ni-Cu material in a subsequent wide-temperature-range using environment is improved by changing the microstructure in the material. The 18Ni-Cu material test piece is cooled in a mode of first gas and then liquid, it is guaranteed that cooling is not too fast, material internal cracking caused by too fast cooling is prevented, internal subzero treatment is more uniform through liquid soaking, and the method is suitable for the subzero treatment process scheme of the 18Ni-Cu material.

The utility model discloses a plateau wheat seed culture device which comprises a box body, a partition plate is arranged in the box body and divides the interior of the box body into a left soaking air-drying cavity and a right low-temperature box body, and box doors are arranged on the front side of the left soaking air-drying cavity and the front side of the right low-temperature box body. Adjustable tray mechanisms are arranged in the left soaking and air drying cavity and the right low-temperature box body; a heating device is arranged in the left soaking air-drying cavity, a refrigerating device is arranged in the right low-temperature box body, and the heating device and the refrigerating device are both electrically connected with a PLC. The box body is provided with the left soaking and air drying cavity and the right low-temperature box body, and the left soaking and air drying cavity can achieve soaking and air drying of wheat seeds; the right low-temperature box body provides a low-temperature environment for wheat seed development. The wheat seed sowing device can explore the influence of dry and wet cold treatment of wheat seeds on the sowing period and the growth period, and early sowing can be achieved through seed treatment.

The invention discloses a method for improving the survival rate of saccharomyces boulardii under an in-vitro simulated gastrointestinal stress condition through preculture and cold treatment, and relates to the technical field of microorganisms. Through combination of pre-culture and cold treatment, the tolerance and survival rate of cells under subsequent stress conditions can be remarkably improved; the cell metabolism rate is slowed down through cold treatment, and the stability of cell membranes is improved; the pre-culture solution is beneficial to rapid growth and accumulation of enough energy and material reserve in the pre-culture stage, and the casein is characterized in that astaxanthin is wrapped in the casein, so that the oxidative stress tolerance of saccharomycetes cells can be enhanced. The ROS (reactive oxygen species) of the cells is reduced under the stress condition through the combination of pre-culture and cold treatment, so that the tolerance and survival rate of the cells to gastrointestinal stress factors are improved, and the method has important significance in expanding the application of the saccharomyces boulardii as probiotics in the fields of foods, medicines and the like.

The invention provides a deep groove ball bearing ring vacuum heat treatment process method which comprises the following steps: cleaning and drying a bearing, selecting a proper tool, placing the dried bearing in the tool according to process requirements, selecting tools with different heights according to different heights of machined rings, and carrying out vacuum heat treatment on the machined rings. The tool provided with the bearing is subjected to vacuum quenching heating; the bearing comprises a bearing ring; cooling the quenched and heated bearing, and selecting different gas quenching pressures according to different effective wall thicknesses of the bearing ring; and the cooled bearing ring is put into cold treatment equipment to be subjected to cold treatment, and after cold treatment is finished, the temperature of the bearing is slowly increased to the room temperature, and tempering treatment is immediately conducted. According to the vacuum heat treatment process method for the deep groove ball bearing ring, the flatness qualification rate is increased, single-layer placement is guaranteed, the loading capacity is not reduced, the space is fully utilized, the yield is increased, and the production cost is reduced.

The invention provides a traditional Chinese medicine preparation for improving the cold treatment effect, namely a cold virus killing agent. The preparation method comprises the following steps: selecting several traditional Chinese medicinal materials with disinfection, sterilization and anti-inflammation functions, namely chrysanthemum indicum, asarum, coptis chinensis, scutellaria baicalensis, pepper, isatis root and liquorice, adding water, boiling twice, mixing the medicine liquids obtained by decocting twice, adding edible white vinegar accounting for 10% of the total medicine amount and an edible preservative accounting for 1% of the total medicine amount, and uniformly stirring. Viruses and bacteria in the nasal cavity can be directly killed; the main path of cold infection is the respiratory tract, the nasal cavity is the leading edge of virus infection, and then cold enters the whole body to cause morbidity; during treatment, the anti-cold drug is orally taken, the drug efficacy spreads all over the whole body, viruses can be quickly killed, but the drug efficacy of nasal mucosa and nasal liquid is difficult to enter, and at the moment, the nasal cavity becomes the base of the anti-cold drug from the leading edge of infection; at the moment, viruses in the nasal cavity can be killed by applying the cold virus killing agent to the nasal cavity, so that the treatment time is saved; the preparation is applied locally, and the efficacy of the preparation cannot reach the whole body, so that a patient must take at least one cold medicine when using the preparation, the cold virus killing agent can be independently used for treating rhinitis, but three medicines, namely magnolia flower, divaricate saposhnikovia root and solidago decurrens, for treating rhinitis must be added.

The utility model discloses a circulating water cooling device for fish ball production. The circulating water cooling device comprises a fish ball cooling bin, a liquid inlet pipe, a liquid outlet pipe, a guide pipe, a running water bin, a water cooling assembly, a temperature transmitter and a liquid pump, a feed pipe is arranged at the upper end of the fish ball cooling bin, a discharge pipe is arranged below the fish ball cooling bin, a liquid inlet pipe is arranged at the upper end of the right side of the fish ball cooling bin, a liquid outlet pipe is arranged at the lower end of the left side of the fish ball cooling bin, the output tail end of the liquid outlet pipe is connected with a snakelike guide pipe, the tail end of the guide pipe is connected to the flowing water bin, and the water inlet end of the flowing water bin is externally connected with a water cooling assembly which comprises a transition pipe and a discharge pipe. The discharge tail end of the discharge pipe is connected with the infusion pump, and the liquid outlet end of the infusion pump is connected with the liquid inlet pipe. According to the utility model, the fish ball cooling bin is arranged, the fused fish balls are arranged on one side, the released fish balls are arranged on the other side, the cooling water is fed on the other side, and the released cooling water is arranged on the other side, so that the used water is subjected to cold treatment through the guide pipe, the flowing water bin and the water cooling assembly and then is fed into the liquid inlet pipe again, and the cyclic utilization of water resources is realized.