35 results about "Microbial pollution" patented technology

The invention relates to a sterile filling system for beverage production and a filling process, and relates to the technical field of beverage production, the sterile filling system comprises a processing table, a sterile production mechanism, a transportation mechanism, a filling mechanism, a bottle dividing star wheel mechanism and an antifouling pad, and the sterile production mechanism comprises four L-shaped plates lapped at the top of the antifouling pad. By arranging the sterile production mechanism, the top plate can be fixed to the top of the machining table through an L-shaped plate and screws, a check curtain naturally falls to form a closed space, a filling area is isolated from the outside, and then an ultraviolet sterilization lamp on the top of the top plate continuously irradiates to sterilize air on the inner side of the check curtain, the equipment surface and a container to be filled; and meanwhile, the purposes of forming a continuous sterile filling environment and reducing the microbial pollution risk are achieved through the matching structure of the check curtain and the ultraviolet sterilization lamp, and the effects that the check curtain and the top plate are convenient to clean regularly and the long-term sterile state is maintained are achieved through the detachable design of the L-shaped plate.

The invention discloses a probiotic biofilm pulse ultrasonic atomization spraying device, and particularly relates to the technical field of jejunum nutrient canal processing.The device comprises a base, and a spraying sleeve shell and an electric frame are installed at the top of the base; an inner conversion frame is rotationally arranged in the spraying sleeve shell, a linear placement groove is formed in the outer side of the inner conversion frame, and multiple sets of vacuum fixing clamps are slidably connected to the inner walls of the two sides of the linear placement groove; a rotary drawing mechanism is arranged in the electrical frame and comprises a fixed feeding pipe, a drawing sleeve and an air supply shaft seat; the drawing sleeve penetrates through the middle of the air supply shaft seat and is in threaded connection with the air supply shaft seat, the air supply shaft seat is provided with a second cooling pipeline and an air outlet ring cavity from inside to outside, a first communicating hose is connected between the second cooling pipeline and the fixed feeding pipe, a vortex sheet is arranged in the air outlet ring cavity, and the air outlet ring cavity can be filled with inert gas; and piezoelectric ultrasonic atomization sheets are mounted in the end parts of the cooling pipeline II and the drawing sleeve. Environmental microbial pollution is effectively prevented, and the spraying effect of the probiotic biological membrane is guaranteed.

The invention relates to the technical field of water circulation, in particular to a rainwater collecting mechanism based on water circulation, which comprises a water storage tank and a liquid inlet hopper mounted at the top of the water storage tank, a liquid outlet is mounted at the bottom of the water storage tank, an adjusting assembly is longitudinally and slidably mounted in the water storage tank, and a filtering assembly is rotatably mounted in the water storage tank. The filtering assembly is located at the bottom of the adjusting assembly; after rainwater in a liquid inlet hopper is filtered by a filter screen, a guide groove rebounds to drive a guide ring and a top pore plate to move upwards, meanwhile, a second spring rebounds to drive a bottom pore plate to reset, the top pore plate is in a blocked state, after a guide block slides to the top of the guide groove, the filter screen is in a regular triangle shape, impurities filtered by the filter screen roll to a filter ring along the filter screen at the moment, and the impurities are filtered out. Impurities are prevented from being accumulated on the filter screen, and water-absorbing impurities are prevented from being retained on the filter screen, so that the filter screen is in a wet state, microorganisms such as bacteria and algae are easily bred, and rainwater passing through the filter screen is polluted.

The utility model discloses a small-dose cosmetic and skincare product packaging container, and relates to the technical field of cosmetic and skincare products. A fixing pipe is fixedly arranged at the top end of the tank body, an installation box is installed on the outer side of the fixing pipe, a connecting pipe is installed in the installation box, an auxiliary rod is fixed to the inner wall of the installation box, a sealing plate is movably arranged on the outer side of the auxiliary rod in a sleeved mode, the sealing plate is inserted into the connecting pipe in a penetrating mode, and a compression spring is movably arranged on the outer side of the auxiliary rod in a sleeved mode. Operating rods are movably arranged on the two sides of the sealing plate, adjusting grooves are formed in the two sides of the mounting box, and two limiting grooves are connected to the inner sides of the adjusting grooves. Through mutual cooperation of structures such as the mounting box, the connecting pipe, the auxiliary rod and the sealing plate, when the liquid pipe is taken out, the connecting pipe can be sealed, so that external air, humidity and microorganisms can be effectively prevented from entering, the stability of components is improved, the shelf life of products is prolonged, and the risks of oxidation, deterioration and microbial pollution are reduced.

The utility model relates to air purification technical field discloses a filter side replacement formula high -efficient air supply outlet, including the box, the box top fixedly connected with the apron, the both sides of box all are provided with the replacement door, the box bottom is provided with the fairlead, two support frames are fixedly connected in the box, and the filter screen is arranged between two support frames, the box inside is provided with cleaning assembly, and the both sides of box all are provided with two fixed components. In the utility model, when the air supply outlet runs, the filter screen dust and the fairlead dust fall cause the ventilation efficiency to drop, starts the air cylinder, drives the sliding block along the slide rail linear motion, drives the rotary rod and the horizontal sweep of cleaning brush, engages through the gear and the rack, converts linear motion into compound motion to complete the filter screen cleaning, realizes the dynamic stable maintenance of filter screen airflow resistance, the uniform guarantee of fairlead front end pressure and the effective reduction of microbial pollution risk.

The utility model provides an efficient and practical clean refrigeration house, which relates to the technical field of refrigeration houses, and comprises a refrigeration house body, a buffer box is arranged above the refrigeration house body, and a refrigeration inner fan and an air feeder are arranged in the buffer box; according to the utility model, the surface air cooler and the air filter unit which are originally positioned in the refrigeration house are moved to the buffer box, so that air is cooled in the buffer box through the refrigeration inner fan, then is diffused to the refrigeration house body through the efficient air supply port by the air feeder, and then returns to the buffer box through the air return port, the air return duct and the air return shutter; finally, the air enters a refrigerating inner fan through a primary filtering wall for refrigerating, continuous circulation and purification are completed, and therefore the problem that the temperature distribution of a conventional refrigeration house is not uniform is effectively solved, the temperature uniformity of the refrigeration house is improved, and the refrigeration house meets the standard requirement; meanwhile, through double filtration of the high-efficiency filter and the primary filter wall, the cleanliness of the refrigeration house is improved, and the risk of microbial pollution is reduced.

The invention relates to a combined sterilization technical method, which can perform technical adjustment in time according to factors such as on-site actual conditions, incoming water quality and seasonal variation, adopts an efficient combined sterilization technical method to improve the sterilization effect, and effectively solves the technical problem that a water treatment system is puzzled by microbial pollution and blockage. Meanwhile, the influence of biological drug resistance on the sterilization effect can be avoided and eliminated, and the service life of water treatment equipment is greatly prolonged.

The utility model provides a microorganism culture kit, which belongs to the technical field of biology and comprises a storage box, a connecting sleeve is fixedly connected to the outer surface of the storage box, a sealing cover is movably clamped in the connecting sleeve, a positioning groove is formed in the top end of the storage box, and a temperature control device is fixedly connected to the inner wall of the bottom of the storage box. A second clamping groove is formed in one side end of the sealing cover; the limiting mechanism comprises a connecting hole, a limiting rod, a shifting rod, a second spring, a clamping block and the like, and the limiting mechanism can be accurately matched with a clamping groove of the sealing cover. When the sealing cover is mounted, the clamping blocks firmly clamp the clamping grooves under the action of the springs and the driving levers, so that the displacement of the sealing cover caused by shaking during transportation and carrying is effectively avoided, the interior of the storage box is always kept in a sealed state, microorganisms are prevented from leaking, a stable and safe internal environment is created for microorganism culture, and the accuracy of experimental results is guaranteed; the experiment failure risk and the microbial pollution hazard are reduced.

The invention relates to a composite adsorption material applied to CO2 gas-liquid separation and a preparation method of the composite adsorption material, and belongs to the technical field of chemical material preparation, a three-layer structure is constructed by taking oriented carbonized pine wood as a supporting framework, taking rare earth / nano-particle dual-modified zeolite as an adsorption core and taking a hydrophobic coating as a protective layer; the preparation method comprises the continuous processes of pine gradient carbonization, zeolite dual modification, in-situ coating forming and continuous sintering. The material solves the problems of capacity attenuation, high regeneration energy consumption and microbial pollution of a traditional adsorption material under a high-humidity working condition, is high in CO2 saturated adsorption capacity and high in capacity retention rate after regeneration, is adaptive to scenes such as a transcritical CO2 heat pump, high-humidity industrial waste gas purification and high-salinity wastewater treatment, can realize low-energy-consumption regeneration through photocatalysis, and is remarkable in effect.

The application relates to a purging device for a liquid preparation system and relates to the technical field of medicine liquid preparation. In order to solve the problem that a traditional purging device cannot completely purge, the purging device comprises a conveying pipeline, the inlet end of the conveying pipeline is provided with a compressed air supply source, the outlet end of the compressed air supply source is sequentially and serially provided with a pressure reducing valve and an electric heater along the conveying pipeline, a plurality of heating modules are arranged in the electric heater, the plurality of heating modules are vertically stacked along the height direction of the electric heater, a heating channel is formed in the electric heater from bottom to top, and a temperature gradient from low to high is formed when the compressed air flows through the heating channel. The application has the effects of effectively stripping the residual moisture on the surface of the system, improving the removal rate of the residual moisture and solving the microbial pollution risk caused by incomplete purging.

The utility model discloses a circuit board pattern electroplating device and electroplating equipment, the circuit board pattern electroplating device comprises an electroplating bath, a sterilization mechanism and a control mechanism, and the electroplating bath is used for accommodating electroplating liquid; the sterilization mechanism comprises a release assembly, a conveying assembly and a storage assembly, the release assembly is arranged in the electroplating bath or above the electroplating bath, and the storage assembly, the conveying assembly and the release assembly are sequentially connected; the control mechanism comprises a logic control assembly, and the logic control assembly is electrically connected with the conveying assembly so as to control the conveying assembly to convey the sterilization liquid stored in the storage assembly to the release assembly. The circuit board pattern electroplating device is applied to the electroplating equipment, the automation level of electroplating bath disinfection is improved, and microbial pollution to the electroplating bath is reduced.

The utility model discloses an online automatic cleaning device relates to automatic cleaning technical field, including cleaning subassembly and drying subassembly, the multiple spray cleaning ball of cleaning subassembly is along the distribution of air inlet and outlet pipeline, can be to the spray cleaning medium to the pipe inner wall all around, flush and then let in the compressed gas and take away residual medium, and drying subassembly communication pipeline, make the pipeline form "cleaning medium injection - residual water purging - drying " closed loop path, the utility model discloses through the distributed spray cleaning ball and lets cleaning medium multi -angle, multi -speed injection, cover more pipeline inner surface, solve the problem that traditional manual cleaning is not thorough and has the blind area, simultaneously, "cleaning - purging - drying " closed loop process, avoid residual water and cause microbial pollution, still promote cleaning efficiency, has overcome the disadvantage of low efficiency of manual cleaning.

The utility model relates to the technical field of preserved szechuan pickle pickling and processing equipment, and discloses a sealed cylinder for preserved szechuan pickle pickling and processing, which comprises a preserved szechuan pickle pickling and processing sealed cylinder, a cylinder cover is arranged above the preserved szechuan pickle pickling and processing sealed cylinder, and sealing assemblies are oppositely arranged on the outer surface of the preserved szechuan pickle pickling and processing sealed cylinder. An extraction assembly is arranged in the preserved szechuan pickle pickling sealing cylinder, the sealing assembly comprises connecting blocks which are relatively and fixedly connected to the outer surface of the preserved szechuan pickle pickling sealing cylinder, guide holes are symmetrically formed in the surfaces of the connecting blocks, and connecting holes are formed in the positions, located between the two guide holes, of the surfaces of the connecting blocks; connecting rods and guide rods are arranged in the connecting blocks, and the bottom surfaces of the connecting rods and the bottom surfaces of the guide rods are jointly connected with limiting plates. According to the utility model, through the arrangement of the sealing assembly, multiple sealing is realized, external air and impurities are effectively isolated, the environment stability in the preserved szechuan pickle pickling process is ensured, and oxidative deterioration or microbial pollution is avoided.

The present application relates to heat exchange plate transport technical field, especially heat exchanger heat exchange plate transport frock and transport method.Its technical scheme includes: lower assembly, heat exchange plate body, heat exchange plate body is placed in lower assembly, lower assembly is staggered with the upper assembly matched with it on the upper assembly, to form a sealed cavity to isolate the heat exchange plate body, the lower assembly bottom is provided with a cavity and is communicated with the sealed cavity;Negative pressure positioning mechanism is used for positioning heat exchange plate and adaptive adjustment of force with the sealed cavity negative pressure condition.The present application avoids the bolt fixing, dismounting operation to the heat exchange plate in transportation, improves the transportation efficiency;In transportation, the acceleration and deceleration of the carrier are used to protect the heat exchange plate, the heat exchange plate is isolated by negative pressure, and microbial pollution is avoided;And under the negative pressure condition, the outside temperature and the internal heat exchange are reduced, so that the internal temperature and humidity are stable, which is beneficial to the safe transportation of the heat exchange plate.

This invention belongs to the field of biosensing and fiber optic detection technology, and discloses a photoelectric-coupled fiber optic real-time in-situ detection system for monitoring the adsorption process of *E. coli* (DH5α). Addressing the core pain points of existing *E. coli* detection technologies, such as reliance on complex sample pretreatment (taking over 24 hours) and the inadequacy of false positives and sensitivity with single-fiber SPR or electrochemical detection, which fail to capture the dynamic process of bacterial adsorption, this invention uses a fiber optic SPR probe with a dual recognition layer consisting of a surface-modified dopamine polymer membrane, an LPS-specific nucleic acid aptamer, and a *E. coli* shape-imprinted cavity as the working electrode. It simultaneously acquires SPR resonance wavelength shift and electrochemical current signals, achieving cross-validation of multi-dimensional detection results. The system can be in-situ implanted into complex detection systems such as water samples and food homogenates without labeling. It exhibits strong anti-interference capabilities and high detection specificity, and can track the entire dynamic process of *E. coli* adsorption-desorption in real time. It can be widely applied in scenarios such as rapid on-site screening of foodborne pathogens, research on bacterial interfacial adsorption mechanisms, and monitoring of microbial pollution in aquatic environments.

The invention discloses a medical sample analysis device, and belongs to the technical field of medical detection equipment, the medical sample analysis device comprises a workbench, the upper surface of the workbench is provided with an analysis box, the interior of the analysis box is fixedly connected with a second fixing block, and the inner top wall of the second fixing block is provided with a first motor. The electric lifting rod is driven by the first motor, and rotation action and adaptive height adjustment are synchronously completed; meanwhile, the electric sliding rail drives the sliding block to move, and then the discharging head below the supporting block is driven to be accurately aligned with the center of the tube opening of the centrifugal tube, so that the problem of liquid spilling and leakage caused by alignment deviation of the tube opening during manual liquid injection can be effectively avoided; and the metering pump controls the extraction amount of the diluent according to a preset proportion, so that the dosage of the diluent of each batch of samples can be ensured to be consistent, the diluent can be ensured not to be in contact with outside air in the whole process, and the air microbial pollution risk is remarkably reduced.

The application discloses a color protection composition and a processing method of raisins, and the composition of the color protection composition is composed of 2-3 parts of barium sulfate, 1-2 parts of sodium chloride, 3-5 parts of iron powder, 2-3 parts of calcium carbonate and 1-2 parts of titanium dioxide. The processing method comprises the steps of raw material preparation, color protection treatment, electron beam irradiation and natural cooling. The method cooperatively acts with the color protection composition with a specific proportion and the electron beam irradiation parameters, solves the problems of easy loss of color and microbial pollution of raisins in the existing process, takes the sample before irradiation as a benchmark, realizes color difference ΔE≤1.0 (basically no color change) through the combination of physical color protection and high-efficiency sterilization, and has stable product quality, a long preservation period and a high industrial application prospect.

According to the electrochemical hydrogen peroxide generator for the air conditioning system, a control assembly and an electrochemical reaction assembly are integrated in a shell, an anode electrode and a cathode electrode are connected with a positive electrode and a negative electrode of an external power source respectively to form a complete electrolysis loop, and a flow channel support is arranged between the anode electrode and the cathode electrode to form a flow channel; the flow path of electrolyte on the surface of an electrode is effectively optimized, the uniformity and turbulence degree of a flow field are enhanced, in-situ electrochemical generation of hydrogen peroxide is achieved, meanwhile, integration with the interior of an air conditioning system is achieved, and hydrogen peroxide is conveyed to key positions where bacteria are prone to breeding in the air conditioning system through air flow of an air conditioner. And'source control 'and'continuous protection' on microbial pollution are realized, so that the indoor air quality (IAQ) is effectively improved.

The invention provides a direct drinking water microorganism real-time monitoring and early warning system based on multi-source data fusion, and relates to the technical field of direct drinking water quality monitoring, and the system comprises the following modules: a data acquisition module, a multi-source sensor network installed in a direct drinking water pipeline according to the monitoring requirement of direct drinking water, a data transmission module, and a real-time monitoring and early warning module employing a LoRa / wiFi / 5G hybrid communication protocol, an appropriate communication mode is selected according to different scenes and requirements, and data acquired by the data acquisition module is transmitted to a cloud or an edge computing node through an MQTT protocol; the data processing and analysis module is used for carrying out preprocessing, multi-source data fusion and dynamic prediction and early warning on the data transmission module, and the user interaction and decision module is provided with a Web / APP visual interface; multi-source data such as microbial fluorescence spectrum, water quality parameters, pipe network topology and meteorology are integrated, microbial pollution of direct drinking water is monitored from multiple dimensions, and monitoring comprehensiveness and accuracy are improved.

The invention provides a preparation method of an antibacterial chemical additive in low-sugar food, and aims to solve the problems that a traditional antibacterial agent is easy to lose efficacy in the low-sugar food and the flavor is influenced. By innovatively constructing a'double-signal response mechanism ', natural polyphenol is bonded with an arylboronic acid ester bond to form a low-activity precursor, and a pH response type color development unit is introduced, so that color early warning at the initial stage of microbial pollution and precise bacteriostasis when the pollution is intensified are realized. According to the method, peroxides and acid metabolites generated by microbial metabolism are utilized to synergistically trigger release of the front antibacterial agent, and a novel low-sugar food preservative scheme which can achieve precise prevention and control and does not affect the flavor of the food is provided. The prepared antibacterial additive is high in stability in low-sugar food and remarkable in antibacterial effect.

The utility model discloses a probiotic filling device, which relates to the technical field of probiotic packaging and comprises a frame, a conveyor belt fixedly connected to the middle of the upper surface of the frame, two support rods fixedly connected to the front side of the upper surface of the frame, a support plate fixedly connected to the tops of the two support rods, and a first cylinder fixedly connected to the middle of the upper surface of the support plate. A pushing plate is fixedly connected to the output end of the first air cylinder, guiding blocks are fixedly connected to the left side and the right side of the upper surface of the supporting plate, guiding rods are slidably connected into the two guiding blocks, the rear sides of the two guiding rods are fixedly connected with the front side of the pushing plate, and two clamping blocks are fixedly connected to the top of the pushing plate; a filling assembly is arranged on the upper surface of the rack and the rear side of the conveying belt. The device has the advantages that the probiotic beverage on the surface of the quantitative tube is scraped and sealed, so that the probiotic liquid can be prevented from being in excessive contact with air in the filling process, the possibility of microbial pollution in the air is reduced, and the sanitary safety of the product is ensured.

The invention discloses transparent makeup fixing cream and a preparation method thereof, and relates to the technical field of cosmetics. The transparent make-up paste comprises the following components in percentage by mass: 23%-35% of a component A, 62%-69% of a component B and 0.01%-0.5% of a component C, wherein the component A comprises 23%-28% of an emollient and 0.01%-7% of a thickening agent, and the emollient comprises 50% of polydimethylsiloxane and 10% of polydimethylsiloxane; the component B is composed of a skin feeling regulator; and the component C consists of a dispersing agent. The paste body of the transparent make-up paste is of a stable structure, on the premise of ensuring smooth skin feeling and transparent make-up feeling of pressed powder, the transparent make-up paste has very good moistening and moisturizing effects, is obvious in skin fusion and make-up fixing effects, and provides a soft, foggy and matte make-up effect. The formula does not contain preservatives, microbial pollution meets the requirements, the preparation process is simple, and the market vacancy is expected to be filled.

The invention specifically discloses a microbial pollution prevention and control system and method for a reverse osmosis cartridge filter, and relates to the technical field of water treatment equipment. The system provided by the invention comprises a sterilization module, a cleaning module, a monitoring module and a control unit. The sterilization module is arranged between the security filter shell and the filter element, and provides a bacteriostatic environment for the filter during operation; the cleaning module comprises spraying pipes and a cleaning liquid supply unit, and the multiple spraying pipes are distributed between the shell and the filter element, communicate with the cleaning liquid supply unit and are used for cleaning the filter element; the monitoring module is arranged at the sewage draining exit and is used for monitoring the ORP value of sewage discharged after cleaning; the control unit communicates with all the modules and controls starting, stopping and switching of the sterilization module and the cleaning module according to the fed-back ORP value and preset conditions. The system is high in automation degree, can effectively inhibit breeding of microorganisms in the security filter, and greatly reduces the maintenance intensity and cost of the system.

This utility model discloses a pollution interception and purification device for river and lake ecological restoration, comprising: several sets of U-shaped seats and connecting seats installed in the river channel; adjacent U-shaped seats are connected by connecting seats; a purification slot is opened in the U-shaped opening of each U-shaped seat, and a purification plate for purifying river water is inserted into the purification slot. The purification medium of the purification plate includes a filter layer, a biological filler layer, and an adsorption layer; protective slots are opened on both sides of the purification slot in the U-shaped opening of each U-shaped seat, and protective plates for intercepting garbage and foreign objects in the river water are inserted into the protective slots. The protective plates are made of metal wire mesh. This multi-pronged approach overcomes the shortcomings of physical methods in dealing with dissolved and microbial pollution, achieving deep purification of water bodies and improving water quality.

The utility model relates to a kind of fish fresh food storage and take-out transport special fresh-keeping box, including refrigeration bottom layer, heat preservation layer and hydrogel bottom layer, the middle part of refrigeration bottom layer is formed with recess by sinking downwards, the opening of recess is upward, hydrogel bottom layer is set on the groove bottom or groove bottom and groove wall of recess, heat preservation layer is wrapped in the periphery of refrigeration bottom layer.The utility model is recessed in the middle part of refrigeration bottom layer, fish fresh food is placed in recess, and the refrigeration medium around recess can form stable refrigeration environment in recess bottom and around, so that different positions in recess maintain stable low-temperature state, avoid the difference of fish fresh food meat quality.And the hydrogel bottom layer set in recess has excellent water absorption and water retention, can keep fish fresh food surface dry, reduce microbial pollution.Hydrogel bottom layer also has temperature regulating capacity, further maintain the stability of temperature in recess, reduce the damage of appearance quality caused by mechanical impact in food material transportation process.

This invention relates to the field of seafood noodle and rice processing technology, specifically disclosing a vacuum packaging device for seafood noodle and rice products. The device includes: a material conveyor belt, a packaging execution mechanism, a control console, a transfer conveyor line, a handling robotic arm, and a discharge output line. The packaging execution mechanism is located behind the material conveyor belt. The transfer conveyor line is positioned along a left-right direction at the discharge port on the outer rear side of the packaging execution mechanism. The handling robotic arm is located on the outer right side of the transfer conveyor line. This vacuum packaging device for seafood noodle and rice products, through a highly coordinated automated system, seamlessly connects the feeding, bagging, and packaging processes, reducing manual intervention and avoiding the risk of microbial contamination from human contact at the source. This ensures that the product's hygiene and safety meet standards. Furthermore, before vacuum sealing, liquid extraction technology effectively removes free liquid inside the bag, fundamentally solving the problem of seal failure caused by liquid.

The invention belongs to the technical field of cold-chain automobile transportation of agricultural products, and provides a fresh-keeping carriage for automobile transportation of medium-temperature pork of 200 kilometers or above. The fresh-keeping carriage comprises a temperature control mechanism, a humidification control mechanism and a sterilization control mechanism. The temperature control mechanism is composed of an air cooling unit and a cold storage unit and used for accurately regulating and controlling the temperature of the compartment. The humidification control mechanism realizes humidity stabilization through a water tank, a water pump, a humidification spray pipe and an atomization device; the sterilization control mechanism uses an ultraviolet sterilization lamp to reduce microbial pollution. Through the synergistic effect of the three mechanisms, myoglobin oxidation is inhibited, the glycolysis process is delayed, the pork carcass redness value is increased, lactic acid accumulation is reduced, the transportation loss rate is remarkably reduced by 0.2%, the shelf life is prolonged, the middle-distance high-quality-control pork transportation requirement is met, and wide application prospects are achieved.

The utility model relates to the bacteriostatic gel production technical field, concretely relates to a kind of stock solution filtering device for bacteriostatic gel production, including filter cartridge, cylinder cover and built-in filter element, filter element top is realized dynamic sealing by thread spin pressure sealing structure: screwing thread block makes sealing gasket radial expansion, form the double seal between card cylinder and pressing plate, prevent high pressure leakage;Filter element inside is equipped with multilayer support net to enhance deformation resistance;Rotary motor is driven scraper rotation by sealing bearing, flexible rubber plate is closely attached to filter element inner wall dynamic impurity, avoid filter hole blockage;Pressure sensing system real-time monitoring pressure change in cylinder, trigger filter element cleaning early warning;Pump bin and filter cartridge direct connection shorten fluid path, reduce stock solution retention, fixed ring and support foot structure ensure equipment running stability;The utility model is through sealing reinforcement and online self-cleaning synergistic effect, significantly improve filter element service life, applicable to the efficient continuous filtration and microbiological pollution control demand of high viscosity bacteriostatic gel stock solution.

The utility model relates to the technical field of pure water filtration, and particularly discloses ultrapure water membrane filtration equipment which comprises a frame for supporting, and a reverse osmosis component for filtration is arranged on the inner side of the frame; the reverse osmosis assembly comprises a pressure pump for providing pressure and one or more filter assemblies, the filter assemblies and the pressure pump are combined through a pipeline, and every two filter assemblies are connected through a pipeline; through the integrated ultraviolet disinfection system, water can be instantly disinfected in the filtering process, microbial pollution is effectively controlled, formation of a biological membrane is reduced, water quality safety is ensured, a physical disinfection method is adopted, damage to a filter element material caused by heating and other modes is avoided, the service life of a filter element is prolonged, the replacement frequency and maintenance cost are reduced, and the water quality is guaranteed. Hydrogen peroxide is matched with ultraviolet rays, so that the decomposition capacity of hydrogen peroxide is improved, no harmful substance is left, and the service life of the filter membrane is prolonged.

The application discloses a method for preparing dried litchi by using a breathable and moisture-permeable film, wherein fresh litchi is subjected to physical field sterilization treatment, wrapped in a self-made sulfonated polyether ether ketone preservative film, subjected to heat pump drying treatment by means of a blowing drying box, and the O2 and CO2 concentrations during drying are adjusted by means of a modified atmosphere packaging film, so that the nutritional components and aroma components of the litchi are retained to the maximum extent during the drying process, and the physical field sterilization is combined, so that the microbial pollution is reduced, and the shelf life of the dried fruit is further improved. The application is green and safe, one-step drying is adopted, the drying time is short, and the drying energy consumption is reduced. Finally, the data results show that the dried litchi obtained by using the application is superior to the dried litchi obtained by using common drying methods in terms of various physical and chemical properties and aroma components, and no microbial breeding and rotting phenomenon occurs after being placed for several months.