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1192 results about "Open air" patented technology

Open-air raw material wild simulating bamboo fungus cultivation technique

The invention relates to an open-air raw material wild simulating bamboo fungus cultivation technique which comprises the steps of cultivation material selection and treatment, land selection and land preparation, preparation of earthing, stockpiling seeding, spawn running management, fruiting management, insect control, harvesting and the like. According to the invention, Chinese herbal medicine liquor is adopted to disinfect the cultivation material, the earthing and the cultivation filed, and botanical pesticide is sprayed to prevent insect disease, thereby greatly reducing the pest and disease damage of the bamboo fungus, purifying the growth environment of the bamboo fungus, reducing the use of chemical pesticide, and protecting the ecological environment. The ecological environment cultivated by the cultivation technique disclosed by the invention is good in taste and safe and pollution-free. The cultivation technique is rich in material source, saves land, is low in cost, and can obtain high yield; yield of cultivation per mu can be about 90-120kg; and waste fungous materials for breeding bamboo fungus can be applied back to fruit gardens, vegetable gardens and the like, thereby achieving multiple purposes by one thing.
Owner:FEIXI AGRI TECH PROMOTION CENT

Wide-range broadband current sensor base on tunnel magnetic resistance effect

The invention provides a wide-range broadband current sensor base on a tunnel magnetic resistance effect, and belongs to the field of sensing measurement. The sensor comprises an open magnet ring, current sensing chips, a compensation coil, a sampling resistor, an instrument amplifier, a zeroing circuit, a current output module and a power supply module; the current sensing chips include a high-sensitivity TMR sensing chip and a low-sensitivity TMR sensing chip, and are provided with two current measuring output points; the open magnet ring sleeves a current carrying lead, so that the current carrying lead penetrates through an inner hole of the open magnet ring; the compensation coil is wound around the open magnet ring; the high-sensitivity TMR sensing chip is arranged in an open air gap position of the open magnet ring; the low-sensitivity TMR sensing chip is arranged outside the open magnet ring; the high-sensitivity TMR sensing chip with other composition parts forms a closed loop structure; and the low-sensitivity TMR sensing chip, the instrument amplifier and the zeroing circuit form an open loop structure. The current sensor has the advantages of being wide in measuring range, wide in frequency band, small in size, high in precision, low in cost, free of intrusion and convenient to install and maintain.
Owner:TSINGHUA UNIV

Blasting method capable of effectively reducing blasting boulder yield of surface mine

ActiveCN105571419AAchieving pre-weak crack damageAvoid damageBlastingSocial benefitsBedrock
The invention discloses a blasting method capable of effectively reducing a blasting boulder yield of a surface mine. According to the blasting method, holes are drilled quincuncially in a pre-blasted open-air bench (1) according to designed blast hole net parameters, namely a distance (a) between every two blast holes, and a distance (b) between every two rows of blast holes, so as to form a blast hole net composed of 2-3 rows of blast holes (2); an advanced primer cartridge (3) is arranged in a deepened position of the bottom of each blast hole (2), an in-hole micro-delay initiation technology of first initiation of the advanced primer cartridge (3) and later initiation of a top main charge (6) is adopted, and a micro on-off blasting process is adopted to realize advanced weak crack damage to rock mass at the bottom of the hole; moreover, excessive damage and failure, caused by the blasting effect of the explosive at the top, to the bottom bench rock mass can be effectively avoided, and therefore, the boulder yield of the bottom bench can be controlled; meanwhile, by means of meticulous design, the generation of bedrock can be avoided, the mine exploring cost can be effectively reduced, the production efficiency of an enterprise and the safety of operation can be improved, and favorable economic benefits and social benefits can be created.
Owner:SINOSTEEL MAANSHAN INST OF MINING RES +1

Wheel hoeing machine

A wheel scrabbling machine relates to the field of mine and engineering machinery and comprises a car chassis, an excavating loading mechanism, a conveying unloading mechanism, an electrical control system, a hydraulic system and an operation mechanism for the hydraulic system; the wheel scrabbling machine adopts a brand new structural design, adopts an external power supply or a self diesel engine as power, and adopts electric, hydraulic and mechanical transmission to realize the continuous hoeing, conveying and loading. The wheel scrabbling machine is compact and reasonable in structure, low in fault rate, simple and convenient in maintenance, flexible in moving and safe and reliable in work and has the characteristics of capability of self walking, stable loading, flexible operation, continuity, efficiency and the like, safety loopholes are reduced and casualty accidents of staff are effectively reduced; the wheel scrabbling machine is suitable for narrow roadways and the construction conditions of an uneven ground, and is mainly suitable for the exploitation and scrabbling operation of a coal mine, a phosphorus ore, an iron mine, a copper mine and a gold mine as well as the collecting and loading of metaling in channel constructions such as a railway, a road, water conservancy and national defense and can also be used in the loading of open-air bulked materials.
Owner:襄阳忠良工程机械有限责任公司

Modified rubber prepared by oil shale waste slag and method for preparing modified rubber by oil shale waste slag

InactiveCN102504368AEliminate pollutionUniform carbonization on the surfaceResidual bodyThermal insulation
The invention relates to modified rubber prepared by oil shale waste slag and a method for preparing the modified rubber by oil shale waste slag. The method comprises the following steps that oil shale waste slag subject to oil extraction is smashed to be the particle size smaller than 300 mesh, the smashed oil shale waste slag is placed into a high temperature furnace for braking, isolated from the air to conduct the thermal insulation, cooled down with the high temperature furnace and made into carbonized oil shale waste slag, the carbonized oil shale waste slag, raw rubber, carbon black, zinc oxide, powdered sulfur and vulcanization accelerator are added into a mixing roll, are mixed at a certain temperature, and formed in a panel vulcanizing machine after being cooled down. The invention makes the best of the organic matter residual body of residual in oil shale waste slag to change the organic matter residual body into valuable, and eliminates the environmental pollution caused by that oil shale waste slag is stacked in the open air; and the surface of the carbonized oil shale waste slag powder is uniformly carbonized, covered firmly, and good in compatible with the organic matters; the performance is good, the process is simple, and the cost is low. The invention saves the afterbaked energy, and reduces the discharging of carbon dioxide generated in afterbaking. The various indexes of the mechanical property of a test sample reach the GB 3778-94 standard.
Owner:JILIN UNIV
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