309results about How to "Guaranteed ventilation" patented technology

An automatic cleaning unit in the dust collecting drum of cleaner is composed of an openable cover hinged to the top of dust collecting drum and with an upper ring track on its bottom surface, a perforated isolating plate with a lower ring track on it and an air outlet channel, and a gang brush between said upper and lower ring tracks and revolving along them to remove the dust deposit from the inner surface of dust collecting drum.

The invention discloses a special cultivation substrate for dendrobium officinale. The special cultivation substrate comprises a bottom-layer substrate, a middle-layer substrate and an upper-layer substrate stacked sequentially from bottom to top, wherein the bottom-layer substrate is prepared from 10-20 parts of bean stalk or 15-25 parts of dry sugarcane leaves; the middle-layer substrate is a mixture of 5-15 parts of red brick powder, 15-30 parts of composted alcohol biogas residues and the like; the upper-layer substrate is a mixture of 15-35 parts of modified biological carbon, 15-45 parts of deadwood, 5-15 parts of expanded perlite and the like. The preparation method of the planting substrate comprises steps as follows: preparation of the modified biological carbon, preparation of the bottom-layer substrate, the middle-layer substrate and the upper-layer substrate and stacking of the bottom-layer substrate, the middle-layer substrate and the upper-layer substrate. The preparation method is simple and easy, the prepared planting substrate overcomes the defects that conventional substrates are rotten and air-impermeable and cannot hold water after being used for a long time, is low in cost, has rich nutrition and facilitates growth of dendrobium officinale, stems of dendrobium officinale grow more strongly, and root systems of dendrobium officinale are well developed.

The invention discloses a white magnolia cultivation method and provides a whole set of cultivation method including nursery stock selection, digging, planting field pretreatment, nursery stock transplantation and later-period fertilizer and water management. By the white magnolia cultivation method, the problem that survival rate is affected due to the fact that roots are damaged to different degrees during nursery stock transplantation is avoided, planting soil aeration is guaranteed by the aid of pretreatment of gravels and sandy oil of tree pits of a planting field, fertilizer efficiency during white magnolia tree growth is also guaranteed to be sufficient but not excessive by the aid of the later-period fertilizer and water management in different stages, and accordingly the survival rate of white magnolia trees is increased, tree growth and blooming quality is guaranteed, and disease resistance of the white magnolia trees is enhanced.

The invention discloses a dendrobium officinale planting substrate containing modified biochar, which comprises substrate A, substrate B and substrate C arranged sequentially from bottom to top; according to the ratio of parts by weight, substrate A is 10-20 parts of dry rice straw Or 10-20 parts of dry sugarcane leaves; substrate B is 5-20 parts of silkworm excrement, 10-30 parts of rice bran, etc.; 45 copies etc. The preparation method of the planting substrate is the preparation of modified biochar, the preparation of substrates A, B and C, and then superposition. The preparation method of the present invention is simple and easy to understand, and the planting substrate prepared by the present invention overcomes the long-term use of the substrate, rots and airtight, does not retain water, and has low cost and complete nutrition, which is more conducive to the growth of Dendrobium candidum, and promotes the growth of Dendrobium candidum Stronger and more developed root system.

An air conditioning apparatus includes a casing and a dividing cosmetic panel. The casing has a suction port and a discharge port. The dividing cosmetic panel has a plurality of dividing panels and an opening/closing moveable mechanism for varying the positions of the dividing panels relative to the suction port. The opening/closing moveable mechanism switches between a state in which the dividing panels are disposed in proximity to each other, thereby blocking air flow through the suction port, and a state in which the dividing panels are separated from each other to allow ventilation through the suction port.

The invention discloses a wild-imitating planting substrate for dendrobium huoshanense. The wild-imitating planting substrate comprises a bottom-layer substrate, a middle-layer substrate and an upper-layer substrate which are arranged in a manner of being superposed sequentially from bottom to top, wherein the bottom-layer substrate is prepared from 10-20 parts (by weight) of dried corn stalks or dried sugarcane leaves; the middle-layer substrate is prepared from a mixture of 5-15 parts (by weight) of vermiculite and the like; and the upper-layer substrate is prepared from a mixture of 15-35 parts (by weight) of modified biocarbon, 15-45 parts (by weight) of rotten wood and the like. A preparation method for the planting substrate comprises the steps of preparing the modified biocarbon, preparing the bottom-layer substrate, the middle-layer substrate and the upper-layer substrate and then carrying out superposition. The preparation method for the planting substrate is simple and easy to understand; and the planting substrate prepared by the preparation method has the advantages that the condition that the substrate is rotted, is air-proof and does not hold moisture in long-term use is overcome, the cost is low, the nutrition is complete, the growth of the dendrobium huoshanense is better facilitated, dendrobium huoshanense stems are promoted to grow more sturdy, and dendrobium huoshanense root systems are promoted to be more developed.

The invention discloses a water-saving green drip irrigation cultivation method of facility melons. The cultivation method comprises the steps of building a micro-nano bubble oxygen-adding drip irrigation system, a solar heating system, a greenhouse structure and a disease and insect pest green prevention and control system. Micro-nano bubble water generated through a micro-nano bubble generatingdevice has a high dissolution capacity, the absorption and utilization of crops to fertilizer can be improved, the fertilizer applying amount is reduced, and a desalination salt separation area is formed in a root area; before the crops are planted, by conducting micro-nano bubble water drip irrigation with the assistance of an ultrasonic sterilizing lamp to sterilize and disinfect soil and air, breeding and propagation of pests can be effectively controlled. In the cultivation process, water-fertilizer-air integrated irrigation by adding oxygen through the micro-nano bubble water is conductedwith the assistance of a compound EM fungicide, and the high yield and good quality can be guaranteed while the utilization rate of the fertilizer is increased, the soil salinization and ventilationare improved, and the irrigation amount is saved.

The invention discloses an electric window linkage method and system based on a cloud lock. The system comprises the intelligent cloud lock, a mobile terminal, a cloud server and a window networking device. The method comprises the process of a user entering a door and comprises the following steps that A1, a first linkage scene when the user enters a door is established at the mobile terminal andis sent to the cloud server; A2, the intelligent cloud lock is provided with a detection unlocking device, the detection unlocking device detects whether a lock body is in an unlocking state or not,if yes, the intelligent cloud lock sends an unlocking signal to the cloud server, and if not, detection continues to be performed; A3, the cloud server analyzes the received first linkage scene, editsthe received first linkage scene into a control instruction packet and sends the control instruction packet to the window networking device; and A4, the window networking device performs specific opening operation on windows with designated numbers according to the control command packet. According to the electric window linkage method and system, the mobile terminal is used for setting which windows need to be opened in advance when the intelligent cloud lock is unlocked, when the intelligent cloud lock is used for entering the door, the set windows are automatically opened, and therefore the comfort of a family can be improved.

The invention discloses a nursery stock rejuvenation method for border trees. The nursery stock rejuvenation method includes the following steps: digging rejuvenation caves in the outer sides of tree weirs; evenly mixing a border-tree rejuvenation base material with original soil according to the volume ratio of 1: (4-5), backfilling the caves, and compacting the soil. The border-tree rejuvenation base material comprises, by weight, 10-15 parts of grass carbon, 35-45 parts of rotten garden waste, 5-10 parts of perlite, 8-12 parts of slow-release fertilizer and 0.1-0.14 part of mycorrhizal fungus. The nursery stock rejuvenation method has the advantages that loose rejuvenation soil with rich nutrition, long-lasting fertilizer effect, high water-holding capacity and high breathability is provided for the border trees, and a health growth environment is provided for plant systems, so that adverse effect caused by external environment is relieved effectively, tree vigor is enhanced, and complete crowns and luxuriant foliage are achieved.

The invention discloses an intelligent door and window control system based on a computer. The system comprises an intelligent terminal and further comprises an outdoor detection module, a network managing module, an indoor detection module, a central processing module and a door and window control module. When no person is at home, all windows are automatically closed, the windows are arranged tobe light-proof, privacy can be protected, and the probability of house stealing can be reduced. When a person is at home, for a room without the person, according to the outdoor temperature, whethera window is opened for ventilation is decided according to the condition of whether rainfall appears or not and whether it is night or not, if the temperature is proper, the window is opened for ventilation, safety and comfort are improved, and water is prevented from entering the room. For the room with the person, according to the user behavior, window adjusting is automatically carried out, andtemperature, ventilation and privacy in all rooms can be ensured.

The invention discloses a cardio-pulmonary resuscitation machine with a high-frequency ventilation function. The cardio-pulmonary resuscitation machine comprises a bottom plate, an upright, an external chest compressor, a controller shell, a high-frequency ventilation electromagnetic valve and a high-frequency ventilation air source connector, wherein the upright is arranged on the side of the bottom plate, the external chest compressor is arranged on the upright, the controller shell is mounted at the top end of the upright or on the bottom plate, the high-frequency ventilation electromagnetic valve is mounted in the controller shell, and the high-frequency ventilation air source connector is arranged on the controller shell. An air outlet of the high-frequency ventilation electromagnetic valve is connected with the high-frequency ventilation air source connector through a pipeline, and the high-frequency ventilation electromagnetic valve is electrically connected with a compression ventilation controller in the controller shell. The cardio-pulmonary resuscitation machine has the advantages that on the basis of a conventional cardio-pulmonary resuscitation machine, the open type high-frequency ventilation function is added, so that the cardio-pulmonary resuscitation machine can be switched to use between an intermittent positive-pressure ventilation function and the open type high-frequency ventilation function, application range is broadened, and the cardio-pulmonary resuscitation machine is applicable to emergency treatment of various critical patients with respiratory failure and asphyxia.

The invention relates to a novel method for rapid composting by combining sludge of different types. The method is realized by three main steps, namely mixed blending, aerobic fermentation and discharging and storing. According to the method, the aerobic composting is realized by combining sludge from urban sewage treatment plants, sludge from wastewater treatment plants of beer enterprises and furfural residue discharged by furfural enterprises and particularly parameters of initial composting are adjusted by using the characteristics of different sludge and acidic furfural residue. The novel method has the advantages of reducing the ecological environment risk, increasing nutritive substances of composting products, reducing the cost of the composting, realizing rapid composting without adding extra microbe consortium and the like.

The invention relates to a solar greenhouse roof intelligent ventilation system and a control method thereof. The solar greenhouse roof intelligent ventilation system comprises a scissor fork type ventilation device, a ventilation opening sealing device and an intelligent control system. The scissor fork type ventilation device comprises a fixing support, a scissor fork frame, a ventilation opening push rod motor, a limiting sliding rail, a limiting pulley, a microswitch and a film fixing groove; the ventilation opening sealing device comprises a transfer rod push rod motor, a transmission shaft, a limiting bearing, a sealing rod, a transfer rod and a scissor fork type transmitter; the intelligent control system comprises a temperature sensor, a raindrop sensor, a touch screen, a PLC and a power adapter. On the basis of different requirements for temperature of different crops at different growth periods, whether ventilation is performed or not is judged not depending on a simple temperature threshold value; on the basis of environment data collected by the PLC according to the temperature and raindrop sensors, whether or not the effective accumulative temperature reaches the preset lower limit within the crop growth periods and whether it rains or not, the increase and decrease amplitude of the transient temperature and other factors are comprehensively considered, movement of the ventilation opening push rod motor and the transfer rod push rod motor is controlled, and therefore opening and closing of a ventilation opening are controlled.

The invention discloses a recycled aggregate total pervious concrete pavement structure and a construction method thereof. The pavement structure comprises a pervious cushion ply, a pervious base layer, a pervious surface layer and a pervious cover layer paved from bottom to top; the pervious cushion ply is made from natural gravels; the pervious base layer and the pervious surface layer are recycled aggregate total pervious concrete; and the pervious cover layer is pervious concrete prepared from a aggregate. The pavement structure disclosed by the invention is relatively good in water permeability and wear resistance.

The present invention addresses the problem of increasing the antiviral hygienic effect of a hygienic mask treated with an antiviral agent. This antiviral mask forms a mask body (10) by overlapping aknit fabric (11), the front side of which has been treated with an antiviral drug agent, with a knit fabric (12), the inner side of which is not treated with an antiviral drug agent and is in contactwith the nose and the like, while covering the nose, lower jaw, and right and left ears. A border body (20) made from a knit fabric is formed along the outer periphery of the mask body (10) with a uniform thickness so as to shape the edge thereof, a curved part (21) having an inwardly curving configuration is formed at the nose-tip part, border bodies (23a, 23b) made from a knit fabric are respectively formed by edges with a uniform thickness on the inner sides of both ears, and a non-stretchable joining part (13) is formed at the center part and covers the lips and below the nose so as to shape a space.

The invention discloses a swirling flow shaft with a plurality of swirling chambers. The swirling flow shaft is characterized in that at least one expanded swirling chamber is coaxially formed on the elevation of a shaft section of the swirling flow shaft, and each swirling chamber is connected with a corresponding drain tunnel; the diameter of a lower shaft with the swirling chambers is more than or equal to that of an upper shaft; and an inlet, which is connected with a corresponding swirling chamber, of a drain tunnel at a lower position is completely positioned in a sidewall cavity formed between a letdown water flow and the wall surface of the swirling chamber. The swirling flow shaft is ingenious in design; each swirling chamber can be connected with a drain tunnel running at a low level, and shares the same shaft, the same slope section, the same lower horizontal section and an outlet connected with a water flow in a downstream river channel, so that the construction cost of hydraulic engineering can be greatly lowered, the cycle of construction engineering can be shortened, and difficulty in the pivot distribution of the hydraulic engineering can be eliminated; and moreover, the swirling flow shaft is conveniently and flexibly used, and is high in applicability and particularly applied to hydraulic engineering with big changes in the water level of a reservoir area.

The invention discloses a grain drying and storing warehouse which comprises a warehouse body formed by a wall body and a ceiling, and is characterized in that a grid type separation wall formed by a vertical baffle and a horizontal baffle is arranged inside the warehouse body; each of the vertical baffle and the horizontal baffle is a hollow plate formed by double-layered grids; the inner cavities of the vertical baffle and the horizontal baffle are connected with an air source heat pump through an air duct; the air source heat pump comprises a compressor, a condenser, a liquid storage device, a drying filter, a throttle valve, an evaporator and a gas-liquid separator which are communicated successively; the gas-liquid separator is communicated with the compressor to form a closed type circulating system; the condenser is arranged inside the air duct, and a fan is arranged inside the air duct. According to the invention, the air source heat pump is adopted to heat the warehouse and enable the warehouse to be subjected to air exchange, and the grid type separation wall is arranged inside the warehouse, so that hot gas entering the grid type separation wall can be used for drying grain and performing dehumidification and air exchange on stored grain, the air flowing is accelerated, and as a result, the ventilation of grain can be ensured, and grain is prevented from damping and mildewing; moreover, an exhaust fan is arranged on the wall body, so that the ventilation inside the warehouse can be further controlled, therefore, the grain quality can be guaranteed through multiple measures.

The invention relates to an inflation-free sputum suction type intubation laryngeal mask which comprises a mask body and a mask body tube. The mask body comprises a mask body base plate and a main mask body; the center region inside the main mask body is provided with a mask body cavity which can be communicated with the mask body tube, and a directional guiding body communicated with the mask body tube is arranged inside the mask body cavity; the inflation-free sputum suction type intubation laryngeal mask further comprises an airway instrument sealing valve arranged inside the head end of the mask body tube, an airway instrument can penetrate through the airway instrument sealing valve to stretch into the mask body tube, and the airway instrument stretching into the mask body tube can beguided by the positioning guiding body and then stretches into the mask body cavity; after the airway instrument penetrates into the mask body tube, the head end of the mask body tube through which the airway instrument penetrates can be sealed by means of the airway instrument sealing valve. In the air supply process, sealing performed after the airway instrument is inserted can be achieved, thecomplexity and using cost of the laryngeal mask can be lowered, the laryngeal mask ventilation sealing effect can be ensured without inflation when the laryngeal mask is in use, secretion suction inthe ventilation process can be achieved, the phenomenon that epiglottis blocks an air way is avoided, and the using stability and reliability are improved.

The invention discloses a production method of plastic packaging bags and belongs to the technical field of plastic bag production. The production method of the plastic packaging bags is characterizedby including the following steps that reshaping is performed, wherein a reshaping roller is adopted to reshape a plastic film, and the plastic film after being reshaped is cropped, the plastic film after being cropped is pulled and the two sides of the plastic film are made to coincide with each other by depending on molds on the two sides, and a cylindrical shape is formed; middle sealing is performed, wherein the plastic film is pulled at the speed of 40-120 m/min, hot air is blown to the coinciding portion of the plastic film, middle sealing of the plastic film is completed, a plastic cylinder is formed, the temperature of the hot air is 118-192 DEG C, and the air pressure of the hot air is 0.2-0.4 MPa; and bottom sealing is performed, wherein the plastic cylinder is subjected to transverse heat sealing and is cut off, and the plastic bags are formed. According to the production method of the plastic packaging bags, middle sealing is performed in the manner of thermal radiation, heat sealing on the plastic film can be achieved in the pulling process of the plastic film, and therefore the heat sealing speed of the plastic film is increased, and the production speed of the plastic bags is greatly improved.

The invention discloses an organic fertilizer production method, which comprises: crushing flue-cured tobacco straw, and sterilizing for 30-45 min at a temperature of 90-100 DEG C to obtain a sterilized material; mixing a microbial agent into the sterilized material to obtain a mixed material, wherein the adding amount of the microbial agent is 0.07-0.13% of the mass of the sterilized material, and the microbial agent comprises Bacillus subtilis, Bacillus Licheniformis, saccharomycetes and Aspergillus Niger; and adding effective flora into the primary fermentation material, and carrying out secondary fermentation to obtain the organic fertilizer. According to the present invention, with the method, more than 95% of pathogenic bacteria can be reduced through early-stage high-temperature sterilization pretreatment, and primary fermentation and secondary fermentation propagation are carried out step by step so as to avoid the effective flora inactivation caused by the too high primary fermentation temperature, such that the effective flora can be sufficiently propagated, and the effective viable count can be increased.

The invention provides a vibrating slurry-lifting and land-preparation method and a machine tool of a paddy field, and belongs to the agricultural land preparation technology and machinery. The method includes the steps that firstly, under a dry framing condition, shallow plowing work and rotary tillage flattening work are conducted on soil of the paddy field; secondly, water is poured into the soil of the paddy field through a drip-irrigation water-pouring mode; thirdly, under a state that water does not exist on the soil surface, after soil moisture content reaches saturation, patting-suppressing type vibrating slurry-lifting work is conducted on the soil surface of the paddy field with the moisture content reaching a saturation state through the special vibrating slurry-lifting and land-preparation machine tool of the paddy field, so that water 'flower' occurs on the soil surface of the paddy field; fourthly, a slurry layer with the thickness ranging from two centimeters to four centimeters is generated on the soil surface of the paddy field, and the land-preparation work is finished. The machine tool is formed by assembling a vibrating slurry-lifting plate on a rice transplanter. The method is good in water-saving effect, less in work process, high in work efficiency, low in labor intensity, high in rice yield per unit area, and good in quality; the machine tool is simple and reasonable in structure, reliable in use, and capable of achieving joint operation of land-preparation and rice transplanting.

The invention discloses a seedling transplanting machine which comprises a travel mechanism, a seedling bearing box, seedling conveying pipes, a seedling conveying pipe elevation mechanism, a seedlingdischarge apparatus and a scraping mechanism. The seedling bearing box is a U-shaped box, an opening is formed in the upper end of the U-shaped box, the seedling bearing box is fixed to the top of the travel mechanism, a plurality of seedling push plates are arranged in the seedling bearing box, square sliders are arranged at the bottoms of the seedling push plates and are slidably arranged in grooves formed in the bottom of the seedling bearing box, the seedling conveying pipes are in the shapes of hollow pipes, the seedling conveying pipe elevation mechanism comprises connecting frame rodsI and elevation air cylinders, the seedling discharge apparatus comprises an insertion planting apparatus, a lifting plate, return springs I, a guide plate, eccentric wheels, connecting rods and eccentric wheel driving motors, and the scraping mechanism comprises rod pieces I, rod pieces II, a rotary plate, a float plate, a positioning plate, return springs II and return springs III. The seedlingtransplanting machine has the advantages that seedlings can be automatically transplanted by the seedling transplanting machine; a large quantity of seedlings can be carried by the seedling transplanting machine, the transplanting survival rate can be increased, scooping and deep squatting operation can be omitted.

The invention belongs to the technical field of plant cultivation, and especially relates to Paris polyphylla var Chinensis cultivation nutrient soil and a cultivation method of Paris polyphylla var Chinensis. The nutrient soil comprises, by weight, 30-50g of sandy soil, 3-5g of a chemical fertilizer, 2-3g of a broad-spectrum microbicide (condensation of chlorobromoisocyanuric acid and bromine chloride), 1-1.5g of ferrous sulfate, 0.5-1g of zinc sulfate, 0.5-1g of an aggregate, 1-1.5g of Bordeaux mixture, 2-5mg of disodium edetate, 2-4mg of potassium dihydrogen phosphate, 0.5-1g of a carbendazim fungicide, and 10-30g of water. The above nutrients are needed by Paris polyphylla var Chinensis growth. The components are mixed with the sandy soil, such that nutrient supply during a Paris polyphylla growth period is facilitated. Also, fertilizer utilization rate can be improved, Paris polyphylla var Chinensis self resistance can be enhanced, pest and disease occurrences can be reduced, pesticide dose can be reduced, and Paris polyphylla var Chinensis yield and quality can be improved. With the nutrient soil and the cultivation method, cost can be saved and efficiency can be improved.

The invention discloses an aerosol generating product with a sectional aerosol generating substrate rod, which is characterized by comprising a smoke generating core material section (1), a breathable hollow section (2) and a filter section (3), the smoke generating core material section (1) comprises a sectional type aerosol generating matrix rod and anti-seepage/heat-conducting cigarette paper wrapping the sectional type aerosol generating matrix rod, the two ends of the sectional type aerosol generating matrix rod are short rod sections (11) formed by bonding sizing tobacco particles, and the middle of the sectional type aerosol generating matrix rod is a scattered particle section (12) formed by non-sizing tobacco particles; the breathable hollow section (2) and the filter section (3) are wrapped by the forming paper (5) to form a filter rod, and the smoke generating core material section (1) and the filter rod are connected through the tipping paper (4). The short rod sections (11) at the two ends can ensure that tobacco particles which are not bonded in the middle do not fall off and scatter, no adhesive exists on the surfaces and in gaps of the tobacco particles which are not bonded in the middle, and the axial ventilation capacity, porosity and smoke release amount of the aerosol generation matrix rod are ensured. The cigarette core with high porosity not only can increase the smoke amount, but also can simplify the structure of an aerosol generating product.