148 results about "Bacterial pollution" patented technology

The invention discloses a fermentation humidifying culture device for biological colony synthesis, and relates to the technical field of fermentation humidifying culture devices.The fermentation humidifying culture device comprises a first box body, a water storage tank is installed at the top of the first box body, a heating box is installed at the top of the water storage tank, and a third water passing pipe is installed at the output end of the front face of the water storage tank; and a second electromagnetic valve is installed at the output end of the third water passing pipe, a water pump is installed at the top of the first box body, and a fourth water passing pipe is installed at the output end of the water pump. Water can be heated and sterilized through the heating box, so that the situation that bacteria in water pollute bacterial colonies and affect growth of target bacterial colonies when external water enters the first box body for humidification can be avoided, and fan blades are driven by a motor to rotate to convey air in the first box body into the heating box for steam sterilization; and meanwhile, water vapor in the heating box can enter the first box body, sterilization of the inner wall and the plate body of the first box body is achieved, and pollution of infectious microbes to normal bacterial colonies is reduced.

A method for contamination control when growing yeasts is provided. Bacterial contamination is controlled by using urea as the primary nitrogen source while simultaneously limiting the amount of nickel available to contaminating bacteria. Bacteria require nickel as a cofactor for urease enzymes in order to use urea for growth while yeasts do not require nickel as a cofactor for any enzymes. Nickel is limited by using metals in heat exchangers that do not leach nickel. Ethyl carbamate is limited by using a carbon / nitrogen ratio that consumes all urea during fermentation. After fermentation completes, yeast is recycled using centrifugation, enabling use of high concentrations of yeast to reduce fermentation time from 48 hours to 12 hours and to eliminate bacterial contamination from growth on free amino nitrogen.

The utility model provides a guide wire guiding tube for an interventional operation, which relates to the technical field of interventional operation tools and comprises at least a first tube body and a second tube body which are sleeved with each other and can slide relative to each other. The end, away from the first tube body, of the second tube body is fixedly connected with a connecting piece, a conveying channel is formed in the connecting piece, one end of the conveying channel is communicated with the second tube body, a duckbilled elastic supporting piece is arranged at the other end of the conveying channel, the exposed section of the guide wire is fixed through elastic force, and slipping or pollution is prevented. A guide wire which is not implanted into a blood vessel is completely wrapped in the device and is physically isolated from the external environment, so that contact with pollutants is effectively avoided, and the problems that at present, medical staff need to wear sterile gloves to manually support an in-vitro guide wire section, sterile guarantee for the guide wire is insufficient, particles or microorganisms are prone to being left on the surfaces of the gloves, and bacterial contamination is possibly caused by long-time contact with the guide wire are solved. The postoperative infection risk is increased.

The application discloses a sealing transportation mechanism of a combined cover. The combined cover can be turned over for transportation, dust and bacteria carried by the combined cover are avoided from polluting the liquid medicine, and the structure is simple and convenient to use. The sealing transportation mechanism comprises a linkage production line, a plug pressing area and a turnover area are arranged on the linkage production line in parallel, the plug pressing area and the turnover area are arranged at the rear end of a track platform and are arranged in parallel with the track platform, a plug pressing assembly for pressing the combined cover is arranged on the plug pressing area, and a turnover assembly for turning over the combined cover is arranged on the turnover area.

The application discloses a low-temperature storage system for biological pesticides, which comprises a storage box body, a switch door arranged at the lower end of the storage box body, a storage mechanism arranged in the storage box body and used for supporting a pesticide bottle tray, and a transfer mechanism arranged at the left side of the storage mechanism and used for transferring the pesticide bottle to the supporting mechanism; when the pesticide bottles are stored, the switch door is opened, the transfer mechanism takes the tray filled with the pesticide bottles and places the tray into the storage mechanism, automatic placement of the pesticide bottles is realized, labor intensity is reduced, manual intervention is reduced, and bacterial pollution is prevented.

The utility model relates to the technical field of medical care appliances, and particularly discloses a 3D printing oral cavity protection mold which comprises a body, a mounting shell fixedly connected to the outer side of the body, a first spring arranged in the mounting shell, a fixing block slidably connected to the interior of the mounting shell, a supporting ring fixedly connected to the bottom of the fixing block, and a baffle slidably connected to the bottom of the mounting shell. A medicament pipe is slidably connected into the supporting ring, a piston is slidably connected into the medicament pipe, a push rod is fixedly connected to the outer side of the piston, two push blocks are fixedly connected to the outer side of the push rod, and a replacement mechanism is fixedly connected to the end, away from the push blocks, of the medicament pipe. In the prior art, bacteria on the hands are attached to cleaning cotton, when medicine is applied to the diseased and injured part of a patient, the bacteria pollute the diseased and injured part, and the rehabilitation efficiency of the patient is reduced.

The utility model belongs to the technical field of food processing, and particularly relates to a sausage sterilization device which comprises a sterilization box and a conveying assembly, a cleaning assembly, an air drying assembly and a sterilization assembly are arranged in the sterilization box, the sterilization box is a left-right through box body, and the conveying assembly penetrates through the sterilization box and sequentially penetrates through the cleaning assembly, the air drying assembly and the sterilization assembly. The conveying assembly comprises a conveying belt, a roller, a roller support and a hook, the cleaning assembly comprises a spray head and a water tank, the air drying assembly comprises a fan exhaust outlet, and the sterilization assembly comprises a plurality of ultraviolet sterilization lamps; according to the device, sausages do not make contact with sterilization equipment and a conveying device, it is guaranteed that the sausages are not polluted by external bacteria, continuous sterilization can be achieved through the sausage sterilization device, the sterilization efficiency is high, and the processing efficiency and the processing quality of the sausages are guaranteed.

The invention relates to the technical field of coatings, and discloses a high-adhesion and high-hardness modified epoxy coating for a PC glass plate and a preparation method of the high-adhesion and high-hardness modified epoxy coating. The epoxy coating is prepared from the following raw materials in parts by weight: 20 parts of epoxy resin, 10-20 parts of modified epoxy resin, 15-20 parts of a curing agent, 1-3 parts of modified attapulgite, 2 parts of polycarbonate resin, 0.5-1 part of a dispersing agent, 0.1-0.5 part of a coalescing agent, 0.2-0.4 part of a defoaming agent and the balance of deionized water, the prepared epoxy coating has excellent mechanical properties, has good bonding performance with a PC glass plate, has long-acting antibacterial performance when being applied to the PC glass plate, and can hinder bacterial pollution.

The utility model discloses an instrument trolley for an interventional operation, and relates to the technical field of instrument trolleys. The instrument trolley for the interventional operation comprises a storage box, supporting legs are fixedly connected to the corners of the lower surface of the storage box, moving wheels are fixedly connected to the bottoms of the supporting legs, a hanging seat is fixedly connected to the outer surface of the storage box, a top cover is arranged on the top of the storage box, and a hanging plate is fixedly connected to the lower surface of the top cover; the bottom of the inner surface of the storage box is fixedly connected with a supporting sleeve, the interior of the supporting sleeve is slidably connected with a guide rod, the top of the supporting sleeve is fixedly connected with a supporting plate, the top end of the guide rod is fixedly connected with a supporting plate, the inner wall of the storage box is fixedly connected with an ultraviolet disinfection lamp, and the upper surface of the supporting plate is provided with an upper tray. A fixing mechanism and a first connecting seat are fixedly connected to the side of the upper surface of the supporting plate, and a fixing seat is fixedly connected to the inner surface of the upper tray, so that instruments can be prevented from being polluted by bacteria in air, and the practicability of the instrument trolley is improved.

The utility model discloses a feed particle curing and sterilizing device which comprises a bottom plate, supports are fixedly assembled at the four corners of the surface of the bottom plate, a shell is installed on the four supports, a top cover is buckled at the top end of the shell, a heater is installed on the bottom face of the top cover, a rotating rod rotationally penetrates through the inner wall of the shell, and the inner wall of the rotating rod is provided with a rotating shaft. The two ends of the rotating rod extend to the outer side of the shell, and a stock bin is arranged in the shell. The supporting rod is connected to the rotating rod, the rotating rod drives the stock bin to move together through the connecting rod, the stock bin drives feed particles to move together, and the purpose of turning over is achieved, through cooperation of the discharging pipe and the bottom cover, the steel wire mesh with the proper hole diameter is selected for machining the stock bin, and chippings mixed in the particles continuously fall out of the stock bin and fall onto the bottom cover along the inner wall of the shell. Chippings can be discharged by opening the bottom cover, accumulation of the chippings is avoided, cleaning is convenient, and the situation that the chippings stay in the shell for a long time, breed bacteria and pollute the internal environment of the shell is prevented.

The invention relates to an auxiliary device for taking microneedle patches, which comprises a shell, and a top cap assembly, a suction cup assembly and a grabbing assembly which are mounted in the shell, the top cap assembly and the shell form a moving pair, and the suction cup assembly comprises a connecting rod and a suction cup; the top cap assembly is provided with an air inlet hole and makes contact with one end of the connecting rod when pressed to the set length, the other end of the connecting rod is connected with the suction cup, and the air inlet hole communicates with the suction cup through a first through hole in the connecting rod. The grabbing assembly comprises a supporting part and a hook claw. The supporting part sleeves the outer side of the connecting rod, and the hook claw is rotatably installed on the side, close to the suction cup, of the supporting part. Compared with the prior art, the device has the advantages that the hook claws mechanically grab the microneedle patches, so that physical damage to the microneedles can be avoided, and the microneedle patches can be prevented from being polluted by bacteria on hands due to the fact that the microneedle patches are not manually contacted; and the device is small and portable as a whole, is simple to operate, and can be widely used for taking patches in various fields.

A method for contamination control when growing yeasts is provided. Bacterial contamination is controlled by using urea as the primary nitrogen source while simultaneously limiting the amount of nickel available to contaminating bacteria. Bacteria require nickel as a cofactor for urease enzymes in order to use urea for growth while yeasts do not require nickel as a cofactor for any enzymes. Nickel is limited by using titanium in plate heat exchangers instead of stainless steel. Ethyl carbamate is limited by using a carbon / nitrogen ratio that consumes all urea during fermentation and by separating co-products after fermentation and before distillation. Yeast recycling is performed by using either single-step or two-step centrifugation, without acid washing. This method enables yeast recycling with sugarcane ethanol and sugar beet ethanol production. This method also enables yeast recycling with corn ethanol and grain ethanol production with coproduct recovery after fermentation and before distillation.

The direct drinking machine comprises a direct drinking machine body, a containing concave position is formed in the front upper side of the direct drinking machine body, and connecting protruding parts protruding towards the middle are arranged on the left side wall and the right side wall in the containing concave position; the direct drinking machine further comprises a rotating water outlet module arranged in the containing concave position, the left side and the right side of the upper portion of the rotating water outlet module are each provided with a hinge opening used for being hinged to the connecting protruding part, and a water outlet used for discharging water is formed in the lower side of the rotating water outlet module. Through the arrangement of the containing concave position, the rotary water outlet module can be protected from interference and damage of the external environment, and the water outlet hole is hidden through the rotary water outlet module hinged to the containing concave position; therefore, the water outlet hole can be prevented from being exposed in a natural space for a long time and polluted by dust or bacteria, the healthy drinking water standard of the direct drinking machine can be further improved, and the use experience and drinking water safety of a user are ensured.

The invention discloses a curved disinfection temperature control water supply device for animal husbandry and veterinary medicine, and relates to the technical field of animal husbandry water supply, the curved disinfection temperature control water supply device comprises a water supply assembly, the inner side of the water supply assembly is provided with a filter assembly, the bottom of the water supply assembly is provided with a circulation assembly, and a heating assembly is arranged between the water supply assembly and the circulation assembly; a disinfection assembly is arranged on the outer side of the water supply assembly, an activated carbon filter layer is mounted at the top of the filter assembly, and quartz sand is mounted at the bottom of the activated carbon filter layer. Through the activated carbon filter layer, primary filtration can be carried out when a water source is supplied into the water supply assembly, meanwhile, the water source permeates into quartz sand to be further filtered, and then purification treatment is carried out through filter cotton, so that the quality of the water source is improved in a multi-filtration treatment mode; the healthy water using effect of the livestock is guaranteed, bacterial pollution inside a water source is reduced, and the situation that the livestock gets ill due to water source pollution is effectively prevented.

The application relates to the technical field of orthopedic repair material preparation, and discloses a sterile preparation and injection device for autologous red blood cell drug-loaded blood gel, which comprises a cross bolt mixer, a multimodal injector combined with a composite syringe and a mixing flow channel, the cross bolt is internally integrated with a microfluidic mixing channel, a vertical shaft direction and a coronal shaft direction are respectively connected with a main injector and a drug-loaded injector, when the red blood cell-rich plasma enters the bolt, longitudinal shear force is generated through a spiral flow channel, so that bone morphogenetic protein suspension is vertically injected into a main flow channel through a one-way valve structure, equal ratio mixing of 4:1 is realized in the spiral channel, and the whole mixing process is completed in a closed system. The device has the advantages of realizing accurate and uniform mixing of the red blood cell-rich plasma and the drug in a sterile environment, reducing the risk of bacterial contamination, being capable of directly injecting and filling bone defects for the prepared blood gel, being excellent in biological safety and compatibility, and being low in preparation cost and simple in process.

The invention discloses a culture medium filling device, and relates to the technical field of filling machines. The device comprises a bottom frame, one end of the bottom frame is connected with a conveying mechanism used for conveying storage tanks, and the other end of the bottom frame is connected with a bottle cap screening disc used for conveying plug caps; the rotating bearing disc comprises a rotating disc rotationally installed on the bottom frame, and a plurality of vertical grooves used for bearing the storage tanks are formed in the rotating disc in a circumferential array mode; and the gland assembly comprises an installation frame fixedly connected to the bottom frame, one side of the installation frame is fixedly connected with a supporting frame, and an air cylinder barrel is fixedly connected into the supporting frame. The storage tank can be automatically conveyed to the rotating bearing disc through the conveying mechanism, then the feeding assembly automatically injects materials, the bottle cap screening disc and the cap pressing assembly are matched to achieve automatic cap buckling operation, human intervention is not needed in the whole process, the automation degree is increased, time and labor are saved, meanwhile, the situation of bacterial contamination caused by personnel operation is avoided, and the production efficiency is improved. And the safety of the device is improved.

The present disclosure describes a process for the use of peracid compositions to eliminate and / or control the growth of undesirable bacteria, including contaminating bacteria, in water systems is disclosed. Beneficially, the peracid compositions and methods of use of the same are effective in reducing or eliminating both planktonic and sessile bacterial contamination.

The present application relates to the technical field of pet products, and provides a pet fresh food dining device, which comprises a shell, a conveyor belt and a cutting device. The shell comprises a base and an upper cover, the upper cover is rotationally connected with the base, the base comprises a dining area and a recycling area, the upper cover is provided with an avoiding hole corresponding to the dining area, and the recycling area is provided with a containing space; one end of the conveyor belt is wound around a reel, the other end of the conveyor belt sequentially passes through the dining area and the recycling area, and the other end of the conveyor belt extends into the containing space; the cutting device is arranged at the entrance of the containing space, the cutting device comprises a shielding part and an execution part, the shielding part can move to the side where the conveyor belt is located with the execution part, and when the execution part cuts the conveyor belt, the shielding part closes the opening of the containing space. In this way, the recycling area can recycle the conveyor belt with fresh food residues in time, and the conveyor belt is closed and stored, so that the peculiar smell emitted by the conveyor belt is prevented from spreading, and the bacteria pollution of the whole conveyor belt is prevented, which is not conducive to the diet health of pets.

The utility model belongs to the technical field of cold drink machines, and particularly relates to an ice adding device for a cold drink machine, which comprises a cold drink machine body. An H-shaped plate is arranged on one side of the cold drink machine body; one side of the H-shaped plate is fixedly connected with a square box; an L-shaped plate is arranged at the top end of the square box; a group of U-shaped clamping plates are arranged at the top end of the L-shaped plate; one pair of the U-shaped clamping plates is fixedly connected to one side of the L-shaped plate; one pair of the U-shaped clamping plates is connected to one side of the L-shaped plate in a sliding manner; in order to overcome the defects in the prior art and solve the problems that when an existing cold drink machine is used for making cold drinks, ice blocks are generally needed to be manually added, so that the cold drinks are made into the ice-cold tasty cold drinks, the cold drinks cannot be made into the ice-cold tasty cold drinks, and the cold drinks cannot be made into the ice-cold tasty cold drinks, so that the cold drinks cannot be made into the ice-cold tasty cold drinks. However, due to the fact that manual addition of ice blocks may cause the risk of bacterial contamination due to direct manual contact with the ice blocks, if no appropriate sanitary measure is taken, the beverage in the cold drink machine may be contaminated.

The utility model belongs to the technical field of medical instruments, particularly relates to an efficient air interchanger for gastrointestinal surgery, and aims to solve the problems of low air interchange efficiency, large air pressure fluctuation, potential safety hazards and the like in the prior art provided by the background technology, and adopts the following scheme that the efficient air interchanger comprises an air bleeding mechanism, and an air recovery mechanism is arranged on one side of the air bleeding mechanism; and a pneumoperitoneum needle is arranged between the deflation mechanism and the gas recovery mechanism. The multi-channel gas conveying pipe is adopted, carbon dioxide gas can be evenly conveyed to all parts of the abdominal cavity, the gas exchange efficiency is effectively improved, a clear operation view is obtained, the gas exchange efficiency is improved, the pressure sensor and the flow controller are adopted, the gas pressure can be monitored and adjusted in real time, and the stable pneumoperitoneum environment is maintained; and the gas filter and the gas recovery device are adopted, so that gas can be effectively filtered and purified, smog and bacteria generated in the operation process are prevented from polluting the operation environment, and the infection risk is reduced.

The application discloses a multifunctional water cup, which is provided with a water supplement main machine on the cup body, and the water supplement main machine comprises a water tank, an atomization assembly, is telescopically arranged in a cup cover through a spring and a locking mechanism, is used for containing working water of the water supplement main machine, a connecting through hole is formed in the middle of the tank body, a water outlet is formed on the side surface, and an atomization piece is arranged at the front end of the water outlet; the middle of the spring support is a cylinder, is fixedly arranged on a cup opening support, the cup opening support is locked on the cup opening, and the spring and the locking mechanism are fixedly arranged in the cylinder. The application effectively avoids dust pollution of the water outlet in the air when the spray dehumidification is not performed, reduces bacterial pollution, improves the safety of the product, prevents the blockage of the water outlet caused by air dust, guarantees the product quality, improves the service life of the product, and enables the water cup to simultaneously have the functions of a water container and a spray humidifier, and the water cup is convenient to disassemble and assemble.

The invention discloses an improved beef cattle breeding device and method for animal husbandry, and relates to the technical field of animal husbandry, the improved beef cattle breeding device for animal husbandry comprises a plant and a cleaning device for cleaning excrement of beef cattle in the plant, the transmission motor is fixedly mounted at the bottom of the plant; the bottom box is fixedly installed at the bottom of a plant, a reciprocating lead screw is fixedly installed at the output end of the transmission motor, a moving block is installed on the circumferential face of the reciprocating lead screw in a threaded mode, a scraping plate is fixedly installed at the top of the moving block, and an arc plate is pushed through the scraping plate to trigger a semicircular block to vibrate; the excrement adhering to the connecting plate is shaken off to the liquid box, the excrement is prevented from remaining in the device, the problems that bacteria are bred due to the remaining excrement, and the beef cattle growth environment is polluted are solved, and a clean space condition is provided for beef cattle improved variety breeding.

The present invention lies in the field of disinfection control and relates to a method and a microscope device (300) for spot checks for pathogen contamination, particularly by bacteria, to determine whether and, if so, to what extent an opaque surface, for example, that of a table or a shelf in a hospital, is colonized by pathogen hotspots. To obtain a spontaneously executable check without time-consuming laboratory work, it is proposed, among other things, to lightly spray the surface with sterile water, place a sterile, elongated glass sample strip (364) into the water, remove it, and place it under a microscope with the adhering sample water (368) facing upwards. The microscope has a glass support strip (340) that is movably mounted on a stage (330) and is motor-driven to perform automatic microscopic analysis and AI-assisted evaluation.

The utility model discloses an automatic sampling and dosing device for a BCA protein quantitative kit, and relates to the technical field of sampling and dosing, the automatic sampling and dosing device comprises a rack and a translation mechanism, the top end of the rack is connected with a movable block in a sliding manner, the rack is fixedly provided with a placing rack, and a protective structure is arranged between the rack and the placing rack; the protection structure comprises two guide grooves, the two guide grooves are formed in the two opposite sides of the interior of the rack, a protection plate is slidably installed between the two guide grooves, and the movable block is connected with the protection plate through a transmission assembly. According to the invention, a sample, a standard working solution and a working solution for BCA protein detection which are placed in an open manner are sealed and protected during automatic sampling and dosing, bacterial contamination is avoided, a good protection effect is achieved, and the problems that all reagents are placed in an open manner in an experiment process and are easily contaminated by bacteria, and the detection efficiency is low are solved. Therefore, the stability of the reagent and the proceeding of the reaction are influenced.

The invention discloses a laboratory nucleic acid pollution multi-connected detection device, and belongs to the technical field of molecular biology detection. The device comprises a micro-fluidic chip module, an isothermal amplification module, a multi-channel detection module and an intelligent control module. The micro-fluidic chip module adopts a three-layer composite structure and comprises a sample layer, a reaction layer and a waste liquid layer, the reaction layer is provided with six independent reaction cavities, and LAMP primer combinations and fluorescent probes for plasmid DNA, PCR products, genome DNA, RNA, bacterial pollution and internal reference control are pre-packaged in the reaction layer. The isothermal amplification module adopts a film heating element and a PID control circuit, and the working temperature is 63 DEG C. And the multi-channel detection module is provided with six independent fluorescence detection channels. According to the invention, the whole process integration of sample treatment and nucleic acid detection is realized, the detection time is less than 30 minutes, the detection sensitivity reaches 10 copies per microliter, the weight of the whole machine is less than 3 kilograms, and the method can be widely applied to rapid detection of nucleic acid pollution of laboratory environments, instruments and equipment and experimental consumables.

The utility model provides a clean pipeline drying and anti-bacteria device, which relates to the technical field of pipeline drying and anti-bacteria and comprises a drying box, a drying cavity of a pipeline is arranged in the drying box, a fan is arranged at the upper end of the outer wall of the drying box, an air inlet of the fan is connected with a filter, an air outlet of the fan is connected with a pipeline heater, and the pipeline heater is connected with a pipeline. A pipeline containing mechanism is arranged in the drying box, and a plurality of pipelines to be dried are vertically arranged on the pipeline containing mechanism. The fan is matched with the pipeline heater, hot air is reasonably distributed through the wind scooper, and the pipeline is heated from the top and the bottom of the drying cavity at the same time, so that the pipeline is heated uniformly, and the drying efficiency is improved. The filter ensures that air entering a system is clean, pollution of impurities such as dust to a pipeline is reduced, meanwhile, hot air has a sterilization function to a certain extent, the pipeline is prevented from being polluted by bacteria in the drying process, and the cleanliness of the pipeline is ensured.

The utility model relates to a chicken feeding trough which is characterized by comprising a feeding trough body (11), two sides of the feeding trough body (11) are respectively provided with a drinking trough body (12), the feeding trough body (11) is connected with a feeding cover body (21), two sides of the feeding cover body (21) are respectively provided with a plurality of feeding ports (22), and the top of the feeding cover body (21) is provided with a plurality of anti-treading thorns (25) to prevent poultry from standing on the feeding cover body (21). The anti-treading thorns are arranged on the cover body, so that excrement of poultry cannot fall on the food cover body and cannot fall into feed in the food trough body, and potential bacterial pollution cannot be caused.

The utility model belongs to the technical field of medicament production, and particularly relates to a medicament stirring device which comprises a bottom plate, the top of the bottom plate is fixedly connected with a fixed plate; a mixing barrel is mounted in the middle of the fixed plate; a cover plate is mounted at the top of the mixing barrel; a first fixing groove is formed in the bottom of the cover plate; the top of the mixing barrel is inserted into the middle of the first fixing groove; a second fixing groove is formed in the middle of the cover plate; fixing blocks are installed on the two sides of the second fixing groove. The end parts of the two fixing blocks are fixedly connected with a connecting plate; the top of the connecting plate is fixedly connected with a motor; the output end of the motor penetrates through the middle of the connecting plate; the output end of the motor is fixedly connected with a stirring shaft; by means of the structure, the stirring shaft and the multiple stirring blades are independently taken out after stirring is completed, cleaning and disinfection treatment can be conveniently conducted on the stirring shaft and the multiple stirring blades, gaps and corners, difficult to touch, on the surface are effectively cleaned, and bacterial pollution caused by residues on the surfaces of the stirring shaft and the stirring blades is reduced.

The utility model discloses an automatic door lock opening and closing device of a dish-washing machine and the dish-washing machine. An automatic door lock opening and closing device of a dish-washing machine comprises a door lock and a latch, the door lock and the latch are installed on a box body and a door cover of the dish-washing machine respectively, the door lock can elastically clamp a latch head through a grabbing and clamping mechanism so as to be combined with the latch, and the grabbing and clamping mechanism is driven by a push rod to stretch out and draw back. The phenomena of bacterial contamination and insect climbing-in caused by the fact that the door cover is normally opened can be effectively avoided, the door has the advantages of being reliable in sealing performance and small in door closing force, and user experience is better.

The invention discloses a microbial fertilizer production process and equipment, and the process comprises the following steps: S1, stage conditioning pretreatment: crushing and screening basic raw materials of a microbial fertilizer until the particle size is 20-40 meshes, uniformly mixing and dividing into two parts, adjusting the humidity of the first part of raw materials to 55-65% and the pH value to 6.5-7.5, and carrying out low-temperature pre-fermentation for 1-2 hours; the humidity of the second part of raw materials is adjusted to 45-50%, and the pH value is adjusted to 7.0-8.0 for standby application; the temperature of the low-temperature pre-fermentation material is controlled to be 25-30 DEG C, sterile air is introduced in the whole process, and the raw materials are prevented from being mildewed. The process is efficient, the equipment structure is reasonable, continuous and high-quality production of the microbial fertilizer can be achieved, rotation interference and infectious microbe pollution are avoided, the production efficiency and the finished product quality are improved, and the industrial application prospect is good.