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152results about How to "Good ventilation" patented technology

Method for producing high-aluminum steel plate blanks

The invention provides a method for producing high-aluminum steel plate blanks. The method comprises the following steps: primarily smelting, wherein in the process, argon serves as bottom blowing gas and the end-point carbon content is controlled to be not less than 0.06 weight percent; strictly controlling the slag discharge amount in the tapping process, performing deoxidation alloying and recarburization on molten steel and slagging; performing ladle furnace (LF) refining, conveying the molten steel to an LF station, and feeding an aluminum wire for the first time while weakly stirring by using the argon; after feeding aluminum for the first time, stirring by using the argon, adjusting the temperature, adding aluminum (Al) particle to diffuse and deoxidize, so as to guarantee white slag operation, and feeding aluminum for the second time; performing Ruhrstahl and Heraeus (RH) vacuum treatment and component fine adjustment on the molten steel after feeding the aluminum for the second time, so as to adjust the Al content to be over 1.5 weight percent and adjust other alloy component content to be within the required range; and injecting the molten steel into a tundish, pouring the molten steel into a plate blank continuous casting crystallizer from the tundish and finishing the continuous casting production to obtain the high-aluminum steel plate blanks.
Owner:LAIWU IRON & STEEL GRP

High-dipping double-layer ore body stage deep-hole mining method

The invention discloses a high-dipping double-layer ore body stage deep-hole mining method, which is especially suitable for recovery of a high-dipping double-layer ore body, wherein the ore rock is stable, the thickness of the lower layer of ore body is more than or equal to 15 m and the thickness of the upper layer of ore body is more than or equal to 8 m. The lower layer of ore body is mined and then the upper layer of ore body is mined, a lower layer of ore body stope is arranged vertical to the direction of the ore body, an ore room and an ore column are recovered in two steps, an upper layer of ore body stope is arranged vertical to the direction of the ore body, and an ore room and an or column are recovered in two steps. Recovery of the upper layer of ore body and the lower layer of ore body is as follows: stage large-diameter deep-hole blasting ore break down is adopted, the ore room is mined, then the ore column is mined, the bottom of 6 to 10 m and the top of 4 to 6 m of a dead zone are filled with high-strength cemented filling bodies after recovery of the ore room and the ore column, the other dead zones of the ore room are filled with the cemented filling bodies, andthe other dead zones of the ore column are filled with low-strength cemented filling bodies or non-cemented filling bodies. The high-dipping double-layer ore body stage deep-hole mining method has theadvantages of high operation safety, small stope preparation cutting engineering quantity, short stope preparation time, high stope production capacity, high efficiency and the like.
Owner:CHINA MINMETALS CHANGSHA MINING RES INST

Wall-mounted air conditioner indoor unit

The invention provides a wall-mounted air conditioner indoor unit. The air conditioner indoor unit comprises a shell, an air outlet air duct arranged inside the shell, and an air guide plate which isconfigured to be controlled to horizontally move between a second position moving out of the air outlet air duct and a first position retracting in the air outlet air duct; the air guide plate comprises an upper plate section and at least one lower plate section connected to the lower part of the upper plate section; after the air guide plate is moved out of the air outlet air duct, the air guideplate is configured to be capable of being controlled to rotate around an axis parallel to the extending direction of an air outlet so as to adjust the air outlet direction and the air outlet area, then the air supply diversity of the air conditioner indoor unit is increased, and the air supply comfort is improved; and before the air guide plate horizontally moves from the second position to the first position, the air guide plate is configured to rotate to an initial position enabling the lower plate section located at the bottommost part to be right opposite to the position of the air outletso as to enable the plate section at the bottommost part to cover the air outlet when the air guide plate horizontally moves to the first position.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD

Volcanic gravel type flue-cured tobacco seedling substrate and preparation method thereof

InactiveCN103539566AGood ventilationIncrease water retention and breathabilityFertilizer mixturesFlueVolcanic ash
The invention discloses a volcanic gravel type flue-cured tobacco seedling substrate and a preparation method thereof. The preparation method of the volcanic gravel type flue-cured tobacco seedling substrate comprises the following steps: mixing the following materials in parts by weight: 2.5-4 parts of volcanic gravels, 2-3 parts of volcanic ash soil, 2-3 parts of corn stalks and 2-3 parts of rice husk, composting and thoroughly decomposing. The volcanic gravel type flue-cured tobacco seedling substrate disclosed by the invention is used for replacing the existing grass carbon-based seedling substrate, and tobacco seedlings cultured by using the volcanic gravel type flue-cured tobacco seedling substrate are similar to or partially superior to the tobacco seedlings cultured by the grass carbon-based seedling substrate on the aspects of the emergence rate, the growth and development of the tobacco seedlings and the like. Since the volcanic gravels and volcanic ash soil used for preparing the volcanic gravel type flue-cured tobacco seedling substrate can be directly obtained from the natural environment and moreover the straws, the rice husk and the like are waste resources, compared with substrate materials prepared from grass carbon and the like, the volcanic gravel type flue-cured tobacco seedling substrate has the advantages of abundant raw material storage capacity, low cost, no generation of wastes and the like and has relatively high social, economic and ecological benefits.
Owner:HONGYUN HONGHE TOBACCO (GRP) CO LTD

Ventilation type pigsty

InactiveCN102613095AGood ventilationAvoid accumulationAnimal housingBreeding pigPig breeding
The invention discloses a ventilation type pigsty. The pigsty is a ventilated fence type combined structure, and comprises a pigsty roof and a pigsty main body, wherein the pigsty main body is used for supporting the pigsty roof through a top beam of a truss structure, and comprises fences, bottom beams of the pigsty and a pigsty floor, and the pigsty floor is supported by the bottom beams of the pigsty. The ventilation type pigsty is applicable to breeding pigs; the whole pigsty has a better ventilation effect; and the ventilation effect is optimum when the pigsty is located at a highland, so that infectious pig diseases caused by the accumulation of dirty gases and the problem on ventilation are avoided, breeding cost is reduced, and pig breeding benefit is increased; the ventilation type pigsty is suitable for breeding not only general pigs but also rare pig varieties which require a certain breeding conditions; a proper environment is created for the growth of the pigs; a good breeding environment and surrounding natural environment can be retained; a good working environment is also provided for breeding staff; the ventilation type pigsty is favorable for reducing resistance between the pigsty and natural wind and maintaining stability of the pigsty; meanwhile, the ventilation can reduce the weight of the pigsty; and therefore production cost is saved.
Owner:重庆海林生猪发展有限公司

Magnetic composite non-woven filter bag for removing magnetic fine particles and preparation method of filter bag

The invention relates to a magnetic composite non-woven filter bag for removing magnetic fine particles and a preparation method of the filter bag. The magnetic composite non-woven filter bag sequentially comprises a fiber film coating layer, a magnetic P84 fiber filtering material layer and a poly tetra fluoroethylene (PTFE) non-woven base cloth layer. Magnetic P84 fibers and short PTFE fibers are respectively prepared into the filtering material layer and the non-woven base cloth; the magnetic material layer and the non-woven base cloth layer are subjected to needling compounding; then fiberhot-pressing film coating is carried out on the windward side of a magnetic filter material to obtain a composite filter material; and drying, heat setting, surface calendaring, reeling and magnetizing are carried out to obtain the magnetic composite non-woven filter bag. In the magnetic composite non-woven filter bag, the P84 fibers are high in high temperature resistance and good in flame retardancy; through film coating by the functional fibers, the filter bag is high in acid and alkali resistance and high in air permeability, surface magnetic induction intensity of the filter bag is high,and the removal effect on PM2.5 magnetic fine particles is very obvious; and the preparation method is simple and practical, is low in cost and is suitable for industrial production.
Owner:DONGHUA UNIV

Climbing plant cultivation frame

The invention relates to the field of plant cultivation, in particular to a climbing plant cultivation frame which comprises a planting frame and water delivery pipes arranged in the planting frame. The planting frame comprises multiple inverted V-shaped support units, a connecting rod and connecting bars, each support unit comprises a first support and a second support, the connecting bars are arranged below the connecting rod and are parallel to the connecting rod, and the top ends of the first supports are hinged to the connecting rod; the first supports, the second supports and the connecting rod are all hollow pipes, and the pipe walls are provided with through holes; the water delivery pipes are arranged inside the first supports, the second supports and the connecting rod, and the pipe walls of the water delivery pipes are provided with water delivery ports; each water delivery port comprises an outlet pipe, an outlet stopper and a spring, the root of each outlet pipe is provided with a water inlet which is communicated with the corresponding water delivery pipe, the top of each outlet pipe is provided with a guide rod facing the root, each guide rod is sleeved with the corresponding spring, and the side face of each outlet pipe is provided with a water outlet.
Owner:GUANGDE WEINONG AGRI MACHINERY SPECIALIZED COOP

Fistula protecting device for hemodialysis patients

The invention discloses a fistula protecting device for hemodialysis patients, and relates to the technical field of medical auxiliary instruments. The fistula protecting device comprises a fistula protecting device body; the fistula protecting device body comprises an outer shell and a base; the outer shell is made of PVC hard plastic of a U-shaped structure; an opening is formed in one side of the outer shell; a sliding groove is formed in the position, close to the opening, of the top of the outer shell; a fixing frame is arranged in the sliding groove in a penetrating mode; a handle is arranged at the top of the fixing frame; an arm shield is arranged at the bottom of the fixing frame; a fastening piece is arranged between the outer shell and the fixing frame; a ventilation groove is formed in the upper portion of the interior of the outer shell; an infrared lamp is arranged at the bottom of the ventilation groove; an arm support is arranged at the bottom in the outer shell; and the arm support is hinged to the inner wall of the outer shell. According to the beneficial effects, the arm of a patient can be effectively fixed and protected; when the air temperature is relatively low, the arm of the patient can be irradiated and baked through the infrared lamp; and a good ventilation facility is provided, the placing angle of the arm can be adjusted inside, and the device is simple, practical, humanized in design and capable of being widely popularized and used.
Owner:CHANGZHOU NO 2 PEOPLES HOSPITAL

Medicine healthcare pillow

The invention discloses a medicine healthcare pillow. The medicine healthcare pillow comprises a pillow body, a pillow cushion and a hook and loop fastener. The pillow cushion is fixedly connected with the pillow body through the hoop and loop fastener. Through holes are evenly distributed in the pillow cushion. The pillow cushion comprises a multifunctional fiber layer, a bamboo charcoal fiber layer, a reinforcing mesh layer and a heating fiber layer, wherein the reinforcing mesh layer is arranged on the bottom surface of the multifunctional fiber layer, the heating fiber layer is arranged on the bottom surface of the reinforcing mesh layer, the bamboo charcoal fiber layer is arranged on the bottom surface of the heating fiber layer, and third protrusions are evenly distributed on the bottom of the bamboo charcoal fiber layer. The pillow body comprises a body portion, a first protrusion, a second protrusion, a cavity, a healthcare medicine bag and multiple ventilation holes, wherein the first protrusion is integrally formed on the upper portion of the front end of the body portion, the second protrusion is integrally formed on the upper portion of the rear end of the body portion, and the cavity is formed in the middle of the body portion. Compared with the prior art, the medicine healthcare pillow has the healthcare functions of clearing heat and promoting sleep, and is convenient to clean and use, high in comfort level and long in service life.
Owner:HANGZHOU ZHIJIA NETWORK TECH CO LTD

Outdoor henhouse for native chicken breeding

The invention discloses an outdoor henhouse for native chicken breeding, and relates to the technical field of native chicken breeding. The outdoor henhouse comprises a shell, a cleaning box and a driving box, the bottom of the cleaning box makes contact with the bottom of an inner cavity of the shell, one side of the driving box is fixedly connected with the right side of the inner cavity of theshell, a partition plate is fixedly connected to the bottom of the inner cavity of the shell and located on the left side of the cleaning box, one side of the partition plate is fixedly connected withthe left side of the inner cavity of the shell, a screen plate is fixedly connected between the other side of the partition plate and the right side of the inner cavity of the shell, and a motor is fixedly connected to the surface of an inner cavity of the driving box through a supporting plate. According to the outdoor henhouse for native chicken breeding, excrement generated by native chickenscan be treated in time according to actual conditions, the overall efficiency is improved while the labor intensity of workers is reduced, the surrounding environment of the henhouse can be known, great damage caused by external animals to the henhouse is avoided, the henhouse can be well ventilated, and peculiar smell in the henhouse is prevented from diffusing everywhere.
Owner:无为市裴向东家庭农场
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