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42 results about "Grain damage" patented technology

Grain damage is any degradation in the quality of grain. In the current grain trade, this damage can affect price, feed quality, food product quality, and susceptibility to pest contamination. Between the field and the end use, grain may go through any number of handling operations which can each contribute to grain damage. For example, grain might encounter free fall, conveyors, spouts, grain throwers, elevators, hoppers, dryers, and many more. Overall, these handling methods can be evaluated as to what effect they have on the grain. Damaged grain can often be characterized by the extent to which it reduces storage time. For example, cracked or broken kernels are more susceptible to insect or bacteria as well as chemical degradation. The damage to the actual grain is only one example of losses incurred after harvest. In order to quantify grain damage, one must also understand grain quality. Grain quality is a very broad term and can relate to many topics such as foreign material, chemical compositions, mechanical damage, insect infestations, and many more. These references to quality are highly dependent on the end use of the grain. Certain types of damage may be acceptable to specific industries, whereas others cannot use grain with these issues.

Device and technology for damage-free hulling and color sorting of tea-oil tree fruit

Disclosed are a device and technology for damage-free hulling and color sorting of tea-oil tree fruit. The device comprises a hulling assembly, a vibrating screen (7), a guide groove (8) and a color sorting separating assembly. The hulling assembly, the vibrating screen (7) and the color sorting separating assembly are connected in sequence. The technology includes the four steps including grading, grinding hulling, separating and color sorting. The device and technology can be used for processing a wide range of tea-oil tree fruit and processing green fruit which is just picked as well as tea-oil tree fruit which has been tedded for one or two days; the tea-oil tree fruit in a wide size range can be sorted by adjusting gaps of grating bars of a cylindrical grating grading mechanism, therefore, the size of the tea-oil tree fruit entering a grinding mechanism can be fixed within a certain range, and grinding efficiency and the grinding effect are improved; because a gap between a grinding wheel and a grinding bottom plate can be adjusted through a gap adjusting mechanism, hulling rate is further improved, and fruit grain damage rate is lowered; the picture processing and control technology is applied to tea-oil tree fruit hulling and fruit nut sorting by using the difference between the color of hulls and the color of fruit nuts, and sorting efficiency is greatly improved.
Owner:HUBEI UNIV OF TECH

Flowering period synchronization regulating method for wheat and corn cross inducing haploid embryo

InactiveCN105532248AProlonged cross-pollination timeStrong plantClimate change adaptationPlant cultivationDiseaseGreenhouse
The invention discloses a flowering period synchronization regulating method for wheat and corn cross inducing haploid embryo. The method comprises the steps that on April 8-18 of every year, 200 materials of a single crossing and multiple crossing F1 generation and a preferable F2 generation of wheat are prepared, seeds are harvested after the wheat is ripe, each material contains 10 ears, threshing and drying are performed, unripened grains, extremely-small grains and grains damaged by diseases and pests are removed, the grains are stored in a seed refrigerating chamber and prepared to be applied to a staging autumn sowing test; from June to October, 4-8 corn species of different types are selected to serve as corn seeds for the test, the seeds are stored in the seed refrigerating chamber and prepared to be applied to the staging test. The wheat flowering period and the corn flowering period are regulated to be synchronized in mid-to-end April, the flowering period is regulated through the methods such as seed sorting, fertilizer and water and disease, pest and weed damage prevention and control management enhancing and staging temperature controlling, therefore, plant health and strongness of the wheat and corn can be promoted, the wheat and corn cross pollination time can be prolonged, the flowering period synchronization regulating successful rate is increased, and light supplementary is performed on a greenhouse by controlling heat increasing in a cold chamber; the equipment is simple, the effect is good, and the operation cost is low.
Owner:襄阳市农业科学院

Country grain airing platform

The invention relates to the field of farm tools, in particular to a country grain airing platform solving the problems that the space for airing the grain in the country is small, the airing progress is slow, carrying is difficult, and the grain damage caused by the fact that rain comes suddenly, and it is too late to collect the grain. The country grain airing platform is composed of supports, an airing platform body, four steel rods, four wheels and a waterproof cover, and is characterized in that the four supports are provided with holes formed at equal intervals and can be made of rolled steel or wood, the steel rods are fixed to the holes of the supports, the airing platform body is placed on the steel rods, the wheels are located at the bottoms of the supports, the airing platform is a net in the form of a silkworm platform, the waterproof cover is arranged at the top ends of the supports in a sleeved mode, the country grain airing platform is preferably made of materials good in waterproof performance, tenacity and heat resistance, and one multi-layer airing platform is formed by five to six airing platform bodies. The country grain airing platform is simple in structure, capable of effectively solving the problems such as the grain damage and difficult carrying caused by the small airing space and the slow progress and suitable for being popularized.
Owner:MIANYANG ANZHI SHENGDA CREATIVE TECH

Multifunctional temperature and humidity control device for barn

The invention discloses a multifunctional temperature and humidity control device for a barn and belongs to the field of grain storage and barn temperature and humidity control. The multifunctional temperature and humidity control device comprises temperature cooling equipment arranged at the outer part of the barn; the barn is connected with cooling equipment by an internal air return pipeline and an internal air supplying pipeline in the upper space of the barn wall in an air-path manner. The multifunctional temperature and humidity control device also comprises a grain-mass air path pipeline, wherein the grain-mass air path pipeline is connected at the bottom part of the barn and connects the barn and the cooling equipment in an air-path manner; an internal air return valve is arrangedin the internal air return pipeline; an internal air supplying valve is arranged in the internal air supplying pipeline; a grain-mass air path valve is arranged in the grain-mass air path pipeline. Compared with the prior art, the multifunctional temperature and humidity control device for the barn disclosed by the invention has the beneficial effects that mobile equipment cooling is improved intofixed installation, so that a foundation is laid for automatic grain storage; simultaneously, the functions of grain-mass internal cooling and grain-mass surface temperature control are achieved, theproblems of easy grain damage and easy fumigating corrosion when the temperature control equipment is installed in the barn are solved, and the function for selectable air supplying modes is achieved.
Owner:CHENGDU LANGBOWANG SCI & TECH DEV

Centrifugal threshing device for coarse cereal crops

The invention particularly relates to a centrifugal threshing device for coarse cereal crops, and solves problems that an existing threshing device is poor in separation effect, high in grain damage rate and easy to block and influences threshing efficiency. The centrifugal threshing device includes a box-type rack, a top cover is arranged at an upper end of the box-type rack, a feeding inlet is arranged at a lower part of a left side wall of the box-type rack, a spiral feeding device and a threshing cylinder are arranged in the box-type rack, a transmission shaft is arranged in the box-type rack, a hollow shaft sleeve is sleeved on the transmission shaft, and a spiral pushing device is arranged on the hollow shaft sleeve; the spiral feeding device comprises a conical feeding cylinder andspiral blades; the spiral pushing device comprises a connecting plate, a strip-shaped supporting plate is fixed on the connecting plate, a semi-arc pushing disc is arranged on the strip-shaped supporting plate, the semi-arc pushing disc is hinged with the strip-shaped supporting plate and an adjusting pull rod, and a scraping plate is arranged on the strip-shaped supporting plate. The centrifugalthreshing device avoids damage to seeds in previous processes of impact, kneading and combing, reduces damage rate, retains integrity of straw, and reduces impurity content.
Owner:SHANXI AGRI UNIV +1

Granary capable of automatically drying grains

The invention discloses a granary capable of automatically drying grains. The granary comprises a granary body, wherein exhaust columns are arranged in an inner cavity of the granary body, exhaust holes are formed in the surfaces of column bodies of the exhaust columns, insect repelling lamps are circumferentially arranged on the inner wall of the granary body, an insect discharging hole is formed in the lower part of each insect repelling lamp, a rain canopy is installed on the edge of a granary cover, an exhaust fan is installed on the middle position of the top of the granary cover, the bottom of the exhaust fan is provided with a humidity sensor and a controller, the controller is respectively electrically connected with the humidity sensor and the exhaust fan, and an exhaust port is connected with the upper part of the exhaust fan. The exhaust fan, the controller and the humidity sensor are additionally arranged on the top of the granary cover, so that the granary body has an automatic processing function, and the dryness of the grain can be maintained; the granary is provided with the insect repelling lamps and the insect discharging openings, so that the amount of the grain damaged by the biting of insects can be greatly reduced; the granary cover is additionally provided with the rain canopy, so that the quality safety of the stored grain can be guaranteed.
Owner:李天亮

Bucket-type grain elevator with blast heat exchange function

The invention relates to a bucket-type grain elevator with a blast heat exchange function. A main air inlet and a main air outlet are distributed on a shell of the elevator, heat exchange gas is introduced into the shell from the main air inlet by a blower, an air inlet partition plate and an air exhaust partition plate are arranged in the shell, secondary air inlets are formed in the air inlet partition plate, air supply nozzles are installed on secondary air outlets, the secondary air outlets are arranged in the air exhaust partition plate, and an air inlet channel is formed between the airinlet partition plate and the side wall of the shell on the side of the main air inlet. An elevating channel is formed between the air inlet partition plate and the air exhaust partition plate, and adescending channel is formed between the air exhaust partition plate and the side wall of the shell on the side of the main air outlet. The food in a hopper completes heat exchange in the elevating channel, and the gas after heat exchange is directly discharged into the atmosphere. In the process of grain lifting and transporting, preheating warming or cooling is synchronously realized, equipmentpurchasing cost and space occupation are saved, and overall operation time and grain damage rate are reduced.
Owner:NORTHEASTERN UNIV

Slide-type grain dropping device of grain drying machine

The invention belongs to the technical field of grain drying machines, in particular to a slide-type grain dropping device of a grain drying machine. The slide-type grain dropping device includes a machine body, a horizontal fixed plate is arranged at the internal upper end of the machine body, the periphery of the fixed plate is fixedly connected with the inner wall of the machine body, a grain receiving device is arranged on the fixed plate, penetrates through the fixed plate, and extends to the lower part of the fixed plate, the two sides of the bottom end of the grain receiving device is constantly shrunk, and the vertical tangent plane of the grain receiving device is in a funnel shape; and a fixing block is fixedly connected to the outer wall of the grain receiving device, the crosssection of the fixing block is of a annular structure, the fixing block is connected with the fixed plate through fixing bolts, a vertical grain distributing pipe is welded to the bottom end of the grain receiving device, and a separating plate is fixedly connected within the grain distributing pipe. The shortcomings of the prior art is overcome, a first slide way is used to guide the grain to enter the drying machine, the grain damage due to the fact that the grain hits the inner wall of the drying machine in the grain dropping process is avoided, and the application scope of the drying machine is improved.
Owner:安徽省久泰农业装备有限公司

Drying machine with purification pretreatment function

A drying machine with a purification pretreatment function comprises a drying tower. The drying tower includes a tempering layer, a diversion layer, a drying layer and a circulation layer sequentially from top to bottom. A discharging outlet of the circulation layer is higher than a feeding inlet in the bottom of a lift and is connected with the feeding inlet through an inclined slideway. A discharging outlet in the top of the lift is higher than a feeding inlet of the tempering layer and is connected with the feeding inlet through an inclined slideway. The drying layer is divided into multiple sub-layers, each sub-layer is provided with a plurality of diverters, and the diverters on each sub-layer are arranged between the diverters on the upper adjacent sub-layer and the diverters on the lower adjacent sub-layer. The top end of each diverter is shaped like an inverted V, and air outlets are formed in two sides of each diverter. A cyclone separator is arranged above the tempering layer. Downward sliding of grain under the action of self gravity is used, an upper auger, a lower auger and an auger power motor are omitted, the manufacturing cost is greatly reduced, the machining, manufacturing and maintenance processes are simple, and the grain damage rate is greatly lowered. Therefore, drying is more uniform, and the drying effect is better. In addition, an overturning layer does not need to be arranged independently, the size of the drying tower is reduced, and space is saved.
Owner:合肥三伍机械有限公司

Novel threshing machine

The invention discloses a novel threshing machine, comprising a threshing machine housing, landing legs, a threshing outlet, an air blower, and universal wheels. The upper side of the threshing machine housing is provided with a feeding inlet. The internal of the threshing machine housing is provided with a threshing chamber. The threshing chamber is internally provided with a threshing roll. The threshing roll is provided with a plurality of threshing blades. The lower side of the threshing machine housing is welded with the landing legs. The lower side of the threshing chamber is provided with a sieving chamber. The upper side of the sieving chamber is provided with a filter screen. The lower side of the sieving chamber is provided with the threshing outlet. One side in the sieving chamber is provided with the air blower. One side in the sieving chamber is provided with a clutter outlet. The novel threshing machine is simple in structure, novel and reasonable in design, low in grain damage rate, high in clean ratio, and low in operation resistance, and has little faults. The machine does not need special personnel to operate, and saves power and is light in weight, and improves manual threshing efficiency. Through the universal wheels, the threshing machine is convenient to carry and use. The threshing machine solves problems of labor intensity and manpower waste.
Owner:CHONGQING XIANGGUIYUAN ECOLOGICAL TRAVEL DEV CO LTD

Controllable multi-pulse gas generator

InactiveCN102080528BControl multiple pulsesShorten closing timeFluid removalCombustorHigh energy
The invention discloses a controllable multi-pulse gas generating device, which is used for improving the recovery rate of crude oil. The device is composed of an igniter, a central tube, a section A propellant grain, a B section propellant grain, a plugging joint and a centralizer. A high burning rate ignition propellant and a high explosive hot spot are respectively placed in the A section of the central tube. Fire propellant, by setting different sequences of high, medium and low burning rate propellant grains in A and B sections and the matching of central tube grains, the control realizes multiple pulses during the construction process; the plugging joint is used to Prevent the high-temperature and high-pressure airflow after the ignition propellant in the center tube of section A from leaking into the center tube of the charge column in section B, and ensure that the high-alumina and high-chlorine propellant charge in section A burns first, and the centralizer ensures that the shell of the charge column in the construction of the device is not protected from the casing wall. Frictional damage. The invention realizes the safe and effective release of the high energy produced by the propellant downhole without causing damage to the well. At the same time, long and difficult to close cracks are formed, which is conducive to the progress of construction.
Owner:XIAN AEROSPACE CHEM PROPULTION PLANT

Grain dryer with gradient dehydration

The invention relates to a gradient dehydration grain dryer. The vibrating stratifier is used to stratify the grain according to the particle size and weight, and the stratified grain enters the drying bucket of the next layer from top to bottom; the drying bucket has vibration, so that the grain inside it It is also layered according to the particle size and weight. The grains that are more thoroughly dried will gradually move up to the edge of the drying hopper due to the decrease in moisture, so that the drier grains can enter the edge of the drying hopper preferentially, while The grain with high humidity is in the center of the drying hopper; the drier grain enters the next layer of the drying hopper and gradually dries; it can avoid the problem of uneven drying caused by a single drying; secondly, when drying, the bottom layer The drying hoppers in the upper layer use hot air directly, while the drying hoppers on the upper layer use the waste heat of the hot air used up in the next layer in turn, so that on the one hand, heat can be saved, and on the other hand, a temperature gradient is formed between the drying hoppers in each layer. Avoid the problem of grain damage and uneven drying caused by direct drying with higher temperature hot air when the grain humidity is high; secondly, although the air used up in the lower layer has a certain humidity, it must be lower than the humidity that can be produced by the upper layer of grain, so It does not affect the drying of the upper grain.
Owner:安徽华谷机械科技有限公司

Axial flow threshing separation facility in tangential feeding type

The invention relates to a tangential feeding axial flow threshing and separating device, which is used for taking off the grains of crops from the ear head. The threshing element adopts the composite structure of short grain rod and plate teeth, the short grain rod is installed on the grain rod seat, the plate teeth are located on one side of the grain rod seat, and the concave plate adopts two combined structures of grid screen and punching screen, which can be realized with the threshing drum. Threshing and separation of crops. The short-grain rod-plate teeth composite elements are arranged on the closed cylinder of the threshing drum in a spiral manner; by changing the short-grain rods and plate teeth of different sizes, changing the position of the plate teeth, and adjusting the motion parameters, the device can adapt to rice and wheat. , rapeseed, soybean and other crops threshing and separation requirements. The invention has high depuration rate, less entrainment, low grain damage rate, light stalk breakage, less short stalks and miscellaneous residues in the shedding, uniform distribution along the axial direction of the threshing drum, and strong adaptability to the environment. After simple adjustment, it can adapt to the threshing requirements of various crops, the structure is simple, and the processing and manufacturing are convenient.
Owner:JIANGSU UNIV
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