30results about How to "Ensure air" patented technology

The invention relates to a preparation process of a nutritional bamboo salt. At present, the preparation process of the nutritional bamboo salt, which is simple in production process and high in salt nutritional value and can effectively prevent the bamboo salt from being polluted by heavy metal, is not available. The process comprises the following steps of: selecting fresh bamboos, and cutting the bamboos into bamboo tubes; adding salt into the bamboo tubes, wherein the salt accounts for 4 / 5 relative to the height of each bamboo tube; adding bamboo leaves into the bamboo tubes, wherein the bamboo leaves account for 1 / 5 relative to the height of each bamboo tube; then compacting the salt and the bamboo salt; baking the bamboo tubes for 6-10 hours at 900-1100 DEG C, and naturally cooling;taking out the salt from the cooled bamboo tubes, and crushing; adding the crushed salt and the bamboo leaves into the bamboo tubes, sealing the bamboo tubes with yellow mud; placing the bamboo tubesinto a fire-resistant tank with a cover to isolate air, baking for 3-8 hours at 150-300 DEG C, and cooling; and taking out the salt in the cooled bamboo tubes, and crushing the salt to obtain the nutritional bamboo salt. The preparation process disclosed by the invention is simple, the nutritional value of the salt is high, and the bamboo salt can be effectively prevented from being polluted by the heavy metal.

The invention relates to paint sprayers, in particular to a surface paint sprayer capable of preventing oxidation of a filter. The surface paint sprayer capable of preventing oxidation of the filter is provided for achieving the technical effects that the surface paint sprayer can fully and completely spray paint onto the surface of the filter and prevent paint floating. In order to achieve the technical effect, the surface paint sprayer capable of preventing oxidation of the filter, provided by the invention, comprises a mounting plate, bearing plates, moving components, a curved plate, a rotating component, stretching components, a storage component, a spray component, a fixed plate, a spray nozzle and retaining rings. The bearing plates and the rotating component are fixedly connected to the top of the mounting plate in sequence. The rotating component is located between the bearing plates. The moving components are in screwed connection with the bottom surface of the mounting plate. The curved plate is fixedly connected to the tops of the bearing plates. The surface paint sprayer capable of preventing oxidation of the filter achieves the effects of fully and completely sprayingthe paint onto the surface of the filter and preventing paint floating.

The present invention relates to a carbon plate and its preparation method, belonging to the field of indoor decorative material. Said carbon plate is composed of veneer material and intermediate mixture sandwich. Said intermediate mixture sandwich composition includes (by dry base weight portion) 100 portions of granular carbon and 5-33 portions of adhesive. Said carbon plate has the functions of adsorbing and purifying gas, regulating moisture and radiating far-infrared ray, and contains no the components of formaldehyde, toluene and dimethylbenzene, etc.

The invention discloses a preparation method of a three-dimensional hydrophobic tubular nanofiber membrane. The preparation method comprises the following steps: uniformly dissolving a hydrophobic polymer in a mixed solvent to form a first membrane casting solution; taking a solution of hydrophobic nanoparticles as a second membrane casting solution; respectively putting the first membrane castingsolution and the second membrane casting solution into a first spinning injector and a second spinning injector, and collecting nanofibers on a receiver filled with a tubular support material under certain conditions; and taking down a tubular braided tube after spinning, and volatilizing solvents to obtain the nanofiber membrane, wherein the first spinning injector and the second spinning injector are located on the front upper portion and the rear upper portion of the receiver respectively and located in a plane which passes through the center of the receiver in the width direction and is perpendicular to the axis of the receiver. The membrane prepared by using the method is high in porosity, high in mechanical strength, good in thermal stability, good in lipophilicity and hydrophobicity and excellent in separation stability and reusability, and has long-time separation efficiency of greater than 95%.

The invention relates to a drying system for paper production, and a drying method thereof. The drying system comprises a drying cylinder for wet paper sheets to pass through, at least two gas hoods arranged on the periphery of the drying cylinder, heating devices corresponding to the gas hoods and an air supply system communicated between the heating devices and the gas hoods, and the drying system also comprises a waste heat recovery system used for recovering hot air in the gas hoods and returning the hot air into the heating devices. Waste heat recovery can be conducted on hot air, so theutilization rate of resources is guaranteed; and in addition, the drying effect and the drying efficiency of the wet paper sheets can be further improved through the air supply system.

The invention discloses a tissue culture and rapid propagation method for isatis tinctoria. The tissue culture and rapid propagation method comprises the following steps: obtaining isatis-tinctoria aseptic seedlings, obtaining clustered shoots, carrying out rooting culture and hardening seedlings. The tissue culture and rapid propagation method disclosed by the invention has the advantages that since isatis-tinctoria seeds with the skins being peeled are adopted as experimental materials, the seedling emergence time is shortened and the seedling emergence rate is increased; MS+1.3-1.7mg / L 6-BA and 0.5-1.0mg / L NAA are adopted as clustered-shoot induction media, so that the clustered-shoot induction time is shortened, the clustered-shoot induction rate is increased and the guarantee is provided for obtaining a great quantity of clustered shoots in short time; 1 / 2MS+0.3-0.7mg / L IBA is adopted as a rooting medium, so that a great quantity of thin-long and strong root systems are obtained, and a foundation is laid for surviving of the young seedlings; and since a mixture of vermiculite, turf and perlite is adopted as a medium in the hardening, the survival rate of the young seedlings is guaranteed.

The invention discloses sour-spicy dried ballonflower and a preparation method thereof. The raw materials of the sour-spicy dried ballonflower comprise the following substances: the dried ballonflower, fresh red pepper, vegetable oil, traditional Chinese medicine extract, lemon juice, lean meat, sweet flour paste, white sugar, peanut, sesame, garlic, ginger, salt and monosodium glutamate, wherein the raw materials of the traditional Chinese medicine extract comprise liquorice, scaphium scaphigerum, honeysuckle, Momordica grosvenori, bamboo leaves, radix polygonati officinalis, hawthorn, poria cocos, pericarpium citri reticulatae, lotus seed and lycium. The sour-spicy dried ballonflower is prepared by the steps of preparing sour-spicy paste, protecting the color of the dried ballonflower, dewatering the dried ballonflower, mixing and stirring the sour-spicy paste and the dried ballonflower. The sour-spicy dried ballonflower obtained by the preparation method has the good color, flavor and taste, and the traditional Chinese medicine ingredients with the functions of nourishing the stomach to improve the production of body fluid and clearing heat are added, so the spicy stimulation after eating can be relieved, and the stomach is nourished and the spleen is strengthened. In addition, the provided sour-spicy dried ballonflower can be directly eaten after opening, easy to carry, and convenient to store. The seasonal and regional limitation of a dried ballonflower product is changed.

The invention discloses a cow breeding shed air circulation system with disinfecting and filtering functions and belongs to the technical field of cow breeding. The cow breeding shed air circulation system comprises two circulation pipelines and multiple air pumps arranged on the circulation pipelines. The two circulation pipelines are connected through a circulation air supply device. An efficient disinfecting and filtering device is arranged between each circulation pipeline and the circulation air supply device. Each circulation pipeline is provided with an exhaust pump, a temperature adjusting device and an air inlet pump. A backflow preventing bend is arranged at the end of each circulation pipeline. A residue filtering net, a first layer of ammonia gas filtering net and a second layer of ammonia gas filtering net are arranged in each backflow preventing bend. Each air inlet pipe is provided with a disinfecting device and an inlet air flow adjusting valve. Heat preservation layers are arranged in the circulation pipelines and the backflow preventing bends. The cow breeding shed air circulation system is reasonable in design, simple, convenient to use and capable of conducting circulation filtering and purifying on air of a cow shed, cleanliness of the air in the cow shed is ensured, air is extracted from the outside and disinfected and filtered, the air in the shed is supplemented, ammonia gas is removed through the ammonia gas filtering nets, and the air in the cow shed is ensured.

The invention relates to a preparation process of a nutritional bamboo salt. At present, the preparation process of the nutritional bamboo salt, which is simple in production process and high in salt nutritional value and can effectively prevent the bamboo salt from being polluted by heavy metal, is not available. The process comprises the following steps of: selecting fresh bamboos, and cutting the bamboos into bamboo tubes; adding salt into the bamboo tubes, wherein the salt accounts for 4 / 5 relative to the height of each bamboo tube; adding bamboo leaves into the bamboo tubes, wherein the bamboo leaves account for 1 / 5 relative to the height of each bamboo tube; then compacting the salt and the bamboo salt; baking the bamboo tubes for 6-10 hours at 900-1100 DEG C, and naturally cooling;taking out the salt from the cooled bamboo tubes, and crushing; adding the crushed salt and the bamboo leaves into the bamboo tubes, sealing the bamboo tubes with yellow mud; placing the bamboo tubesinto a fire-resistant tank with a cover to isolate air, baking for 3-8 hours at 150-300 DEG C, and cooling; and taking out the salt in the cooled bamboo tubes, and crushing the salt to obtain the nutritional bamboo salt. The preparation process disclosed by the invention is simple, the nutritional value of the salt is high, and the bamboo salt can be effectively prevented from being polluted by the heavy metal.

The ventilation and deodorization device comprises an exhaust pipe, one end of the exhaust pipe is communicated with a drainage pipe at the lower end of the refrigerator, the other end of the exhaust pipe is communicated with a water pan of the refrigerator, and one side of the exhaust pipe is further communicated with a deodorization branch pipe; a fan for ventilating the refrigerator and a deodorizing block for deodorizing gas are further arranged on the deodorizing branch pipe, the fan is fixedly mounted in a fan mounting box, one side of the fan mounting box is detachably connected with the deodorizing branch pipe, and a box cover is detachably mounted on the other side of the fan mounting box; and the deodorizing block is detachably mounted between the deodorizing branch pipe and the fan mounting box. According to the refrigerator, air in the refrigerator can be pumped out and exhausted after being deodorized, meanwhile, the air enters the refrigerator through the air inlet valve for air exchange, it is guaranteed that air in the refrigerator is fresh, and the phenomenon that food in the refrigerator is tainted by other odors is prevented.

The invention discloses a garbage clearing device for a kitchen sewer. The garbage clearing device comprises a water tank, a starting button, a treatment box, a sewage draining pipe, a bottom box, a box opening, a fan, a motor, a connecting opening, an air pipe connecting opening, a routing pipe, a smashing wheel, a lifting rod, a sliding sleeve, a movable rod, a push rod, a storing box, a rotating disc and a connecting rod. The garbage clearing device has the beneficial effects that the treatment box is mounted at the bottom of the water tank, and the air pipe connecting opening is formed inone side of the top of the treatment box; the treatment box and the fan communicate through an air pipe; through the air blowing effect of the fan, garbage guided into the treatment box is blown intothe sewage draining pipe, and thus blocking of a pipeline in the treatment box is effectively avoided; and the smashing wheel is mounted in the treatment box, the layer of sliding sleeve is arranged on the inner wall of the treatment box in a sleeved mode, the push rod is mounted at the bottom of the treatment box, the garbage is smashed through the smashing wheel, the garbage falling onto the inner wall of the treatment box is pushed into the sewage draining pipe through the sliding sleeve and the push rod, and thus the garbage is effectively prevented from adhering to the inner wall of the treatment box.

The invention discloses an outdoor prefabricated substation which comprises a frame, the frame is provided with an external support, a filter layer is arranged in the support, arc-shaped anti-collision beams are symmetrically arranged outside the support, anti-collision rods are connected between the anti-collision beams, the ends of the anti-collision beams are hinged to the rod ends of cylinderbodies, the cylinder bodies are fixedly connected to the frame, and baffles are arranged outside the anti-collision beams. Shielding plates are arranged at the upper parts and the lower parts of the baffles. A fan is arranged on the lower shielding plate in a penetrating mode through a cylinder frame, a folding plate is arranged between the anti-collision beams and the frame, preassembled supporting legs are arranged at the bottom of the frame, positioning bases are arranged on the inner sides of the supporting legs, four snow accumulation preventing roofs inclining downwards are arranged at the top of the frame, and a door plate and a back plate are movably arranged on the front side and the rear side of the frame respectively. Elements are convenient to install and overhaul through the back plate and the door plate, the anti-collision beams avoid frame deformation damage caused by external force collision, a filter layer reduces dust and water content of entering air, the fan ensuresair in the frame box body to be communicated with the outside, internal temperature is reduced, the supporting legs are used for pre-installation, and a positioning seat is convenient to position, install and fix.

The invention discloses a garbage cleaning device used in a kitchen sewer. The garbage cleaning device comprises a water tank, a start button, a treatment tank, a blow-down tube, a bottom tank, a tank opening, a fan, a motor, a connecting hole, an air tube connecting hole, a wiring tube, a crushing wheel, a lifting rod, a sliding sleeve, a moveable rod, a push rod, a storage box, a rotating disc and a connecting rod. The garbage cleaning device has the beneficial effects that the treatment tank is mounted at the bottom of the water tank, the air tube connecting hole is formed in one side of the top of the treatment tank, the treatment tank is communicated with the fan through the air tube, garbage inside the treatment tank is blown into the blow-down tube under the air blowing function of the fan, and then a pipeline inside the treatment tank is effectively prevented from blocking. The stirring wheel is mounted inside the treatment tank, a layer of the sliding sleeve is arranged on the inner wall of the treatment tank, the push rod is mounted at the bottom of the treatment tank, garbage is crushed through the crushing wheel, garbage falling on the inner wall of the treatment tank is pushed into the blow-down tube through the sliding sleeve and the push rod, and then the garbage is effectively prevented from being adhered to the inner wall of the treatment tank.

The invention discloses a 3D printing clean environment control device and control method based on micro differential pressure. The 3D printing clean environment control device comprises a disinfection and sterilization device I, a disinfection and sterilization device II, a micro differential pressure sensor, a flow sensor and an air inlet pump which are in communication connection with a controlmodule. The disinfection and sterilization device I is arranged in a 3D printing forming chamber. The micro differential pressure sensor is arranged in the 3D printing forming chamber, and one of twoinput ends of the micro differential pressure sensor is arranged indoors, and the other one is arranged outdoors. The air inlet pump is arranged outside the 3D printing forming chamber, and an air inlet and an air outlet are correspondingly formed in the 3D printing forming chamber. Air output by the air inlet pump sequentially passes through the disinfection and sterilization device II and the flow sensor to reach the air inlet and then enters the 3D printing forming chamber. The air outlet is used for exhausting the air. Through timing sterilization and the micro pressure difference technology for automatic detection of the indoor and outdoor pressure difference, the indoor air is supplemented or exhausted, the air and environment quality in the 3D printing forming chamber can be guaranteed, and the 3D printing work quality is guaranteed.

The invention discloses a cow breeding shed air circulation system with disinfecting and filtering functions and belongs to the technical field of cow breeding. The cow breeding shed air circulation system comprises two circulation pipelines and multiple air pumps arranged on the circulation pipelines. The two circulation pipelines are connected through a circulation air supply device. An efficient disinfecting and filtering device is arranged between each circulation pipeline and the circulation air supply device. Each circulation pipeline is provided with an exhaust pump, a temperature adjusting device and an air inlet pump. A backflow preventing bend is arranged at the end of each circulation pipeline. A residue filtering net, a first layer of ammonia gas filtering net and a second layer of ammonia gas filtering net are arranged in each backflow preventing bend. Each air inlet pipe is provided with a disinfecting device and an inlet air flow adjusting valve. Heat preservation layers are arranged in the circulation pipelines and the backflow preventing bends. The cow breeding shed air circulation system is reasonable in design, simple, convenient to use and capable of conducting circulation filtering and purifying on air of a cow shed, cleanliness of the air in the cow shed is ensured, air is extracted from the outside and disinfected and filtered, the air in the shed is supplemented, ammonia gas is removed through the ammonia gas filtering nets, and the air in the cow shed is ensured.

The invention provides a root ventilation system, and belongs to the technical field of planting equipment. The root ventilation system comprises a ventilation pipe, an air guiding part and an air outlet part; the ventilation pipe is horizontally embedded in a field; the lower part of the ventilation pipe is provided with vent holes; one end of the ventilation pipe is connected with the air guiding part; the other end of the ventilation pipe is connected with the air outlet part; the air guiding part comprises an air inlet shrink opening, an guide shrink opening, a guide folding pipe and a connecting pipe; the air outlet part is hollow; one end of the air outlet part is connected with the ventilation pipe; and the other end of the air outlet part extends out of a field ridge and communicates with the atmosphere. According to the ventilation system provided by the invention, the air inlet shrink opening and the guide shrink opening are arranged, the radius of the large-diameter end of the guide shrink opening is larger than the radius of the large-diameter end of the air inlet shrink opening, and the guide folding pipe is connected with the connecting pipe through a bearing, so thatthe air inlet shrink opening right faces the direction from which air comes, and the air is guided into the ventilation pipe. The vent holes arranged in the lower part of the ventilation pipe conveythe air into the soil, and excessive air is discharged by an air outlet, so that the accumulation of the air in the ventilation pipe is prevented, and fresh air inside the ventilation pipe is ensured.

The invention discloses a ventilation and air-changing device for factory buildings. The device comprises a central dust collector, a heating-insulation air-collecting pipeline, an air-discharging pipeline and a combustion furnace, the air inlet of the central dust collector is connected with the heating-insulation air-collecting pipeline and the air outlet is connected with the inlet of the air-discharging pipeline, and the dust outlet is connected with the feeding port of the combustion furnace; the air-discharging pipeline is located in the heating zone of the combustion furnace, and the air-discharging pipeline is connected to a drying heating chamber in the factory building. The ventilation and air-changing device has the advantages that through collection of tea dust in the factory building by the central dust collector and combustion of the tea dust by the combustion furnace, so that the heat from tea dust combustion is used to heat the air-discharging pipeline, and then the heated air is discharged into the drying heating chamber for heating and drying tea leaves, so that the ventilation and air-changing device not only ensures air in the factory building, but also combustsand reuses the tea dust, the use efficiency of the tea dust is improved.

The invention belongs to the technical field of animal experiment equipment, and particularly relates to a monkey cage for multi-view shooting. The monkey cage is characterized in that a frame is formed by welding stainless steel pipes, and the front face, the left face and the top face of the frame are all made of transparent tempered glass; a cage door consisting of fences is arranged on the right side of the cage body; a stainless steel grid is arranged on the lower side of the cage body and used for filtering excrement, and a movable stainless steel excrement box is arranged below the grid; white paint is sprayed in the back of the monkey cage and the excrement box; two side-by-side handrails are arranged on the stainless steel grid surface, so that the monkeys can climb, stand and the like conveniently; the stainless steel long rod is arranged at the top of the monkey cage frame, so that monkeys can stand to grab conveniently; a sliding small sliding door is arranged in the middle of the door and can be automatically locked when closed, and a bait box for containing bait is arranged in the opening end of the sliding small sliding door. According to the monkey cage, animal videos can be conveniently shot from the front face, the side faces and the top face in a multi-angle mode without being shielded by handrails, and the animals are not invaded or hurt.

The invention relates to wearable facial humidifier equipment. The equipment comprises a tightening device, a frame matched with a facial outline, water storage boxes, circuit boards, atomizer plates,a power supply input device, an adjustable nose pad and a net cover used for storing smoke. By means of a wearable facial humidifier, water in the humidifier can be atomized, a humidifying environment is created near a face, the face is humidified, and meanwhile, both hands are freed, so that other work is not delayed.

The invention discloses an elevator with a safe channel for escape, and relates to the technical field of elevators. The elevator comprises an elevator car, wherein a base backing plate is mounted on the lower surface of the elevator car; a ceiling plate is mounted on the upper surface of the elevator car; a ceiling block is mounted on the upper surface of the ceiling plate; a steel cable is mounted on the upper surface of the ceiling block; an escape channel is embedded into the inner top wall of the elevator car; a rotary shaft is mounted on the escape channel; a top cover is mounted on the upper surface of the rotary shaft; and a pressing block is mounted on the inner top wall of the elevator car. The escape channel is embedded into the inner top wall of the elevator car, so that a trapped person can open the top cover to escape through the escape channel when the elevator has faults, and thus, the trapped person is prevented from being injured; and meanwhile, the problem that a great deal of time is needed for maintaining an elevator is avoided, the trapped person is prevented from being in panic, and life safety of passengers in the elevator is guaranteed.

The invention discloses a method for preparing a three-dimensional hydrophobic tubular nanofiber membrane, comprising: uniformly dissolving a hydrophobic polymer in a mixed solvent to form a first casting solution; using the solution of hydrophobic nanoparticles as a second casting solution; The first and second casting solutions are respectively placed in the first and second spinning injectors, and under certain conditions, the nanofibers are collected on a receiver equipped with a tubular support material, and the tubular braided tube is removed after spinning , after the solvent is volatilized, the nanofiber film is prepared; wherein, the first and second spinning injectors are respectively located on the upper front and upper rear of the receiver, and in a plane passing through the center of the receiver width and perpendicular to the axis of the receiver . The membrane prepared by the method has high porosity, high mechanical strength, good thermal stability, good lipophilicity and hydrophobicity, the long-term separation efficiency is still greater than 95%, and has excellent separation stability and reusability.

The invention discloses a balanced circulation system for a confined space, and belongs to the technical field of air circulation control. The balanced circulation system comprises a main unit, as well as exhaust pipes and return air pipes, which are communicated with the main unit, wherein the main unit comprises a first fan and a second fan, and the first and second fans are both controlled by a main control board; the exhaust pipes comprise horizontal exhaust pipes and vertical exhaust pipes, the horizontal exhaust pipes are laid on a ceiling of the confined space, and the vertical exhaust pipes are laid on the sidewall of the confined space; the return air pipes are laid on the ceiling of the confined space, and are parallel to the horizontal exhaust pipes. According to the balanced circulation system for the confined space, the exhaust pipes and the return air pipes are arranged on the ceiling and sidewall of a heat-preservation room in a balanced manner, so that balanced circulation of air in the heat-preservation room is ensured, dead angles in the whole room are prevented, and temperature and humidity in the room are kept constant.

The invention discloses a medical anesthetic needle based on life science and technology and a use method of the medical anesthetic needle. The medical anesthetic needle comprises a needle cylinder, aliquid medicine cavity with an upward opening is formed in the needle cylinder, a sliding piston is connected into the liquid medicine cavity in a sliding mode, a cross groove with an upward openingis formed in a top face of the sliding piston, a connecting groove is formed in a lower portion of the cross groove in a communicating mode, a cross block is detachably arranged in the connecting groove, and a first connecting rod is fixedly arranged on a top surface of the cross block. The medical anesthetic needle is provided with a needle head recovery device, a needle head can be automaticallyrecovered after an anesthetic is injected, the needle head recovery device is matched with a stress plate to pull the needle out of an animal body, the anesthetic needle is integrally separated and falls off, a situation that the needle head is broken and stays in the body causing damage to the animal due to a violent movement of the animal within anesthetic effective time after an injection of the anesthetic needle can be avoided, no air exists in a needle tube and the needle head, and death of the animal due to the fact that air is injected into the animal body is avoided.

The invention provides a deodorizing floor drain filter element structure. A non-return pressing plate is additionally arranged and will be opened by water under the gravity to form water flows, so that the aim of water discharging is realized. When positive pressure is generated in a pipeline, a downward pressing force will be generated on a cover plate, at the moment, the pressing plate makes contact with a fracture clamping groove more and more tightly, the gap between the pressing plate and the fracture clamping groove is further filled with water in a trap to realize the optimal airtightness, hair and other sundries will not affect deodorizing, the effect of no returning is realized, gas upward movement is thoroughly avoided, and freshness of indoor air in a bathroom is ensured.