635results about How to "Not easy to pile up" patented technology

The invention discloses a packaging structure of a semiconductor element and a manufacture method thereof, wherein the packaging structure of the semiconductor element comprises a base body, a semiconductor element, a plurality of welding pads, through holes, a dielectric metal layer and a solder bump, wherein the base body comprises a front face and a back face opposite to the front face; the semiconductor element is positioned on the front face of the base body; the welding pads are positioned on the front face of the base body and are respectively distributed at the periphery of the semiconductor element; the through holes are positioned in the back face of the base body and correspond to the welding pads; the dielectric metal layer is electrically connected with the welding pads; the solder bump is electrically connected with the dielectric metal layer; and the thickness of the base body at the periphery of the through holes is smaller than that of the base body at the inner side of the through holes, which prevents insulating materials or metal from being accumulated in the openings of the through holes, improves the reliability of products, and reduces the size of the packaging structure.

The invention specifically discloses a centrifugal rice screening machine. The centrifugal rice screening machine comprises a frame; the frame is provided with a motor and a rotating shaft; the motor and the frame are fixedly connected; the rotating shaft and the frame are rotationally connected; a classification screen is arranged on the frame, and includes a first screen cylinder, a second screen cylinder and a third screen cylinder; the first screen cylinder is positioned in the second screen cylinder, and can rotate in the second screen cylinder; the second screen cylinder is positioned in the third screen cylinder, and can rotate in the third screen cylinder; the first screen cylinder, the second screen cylinder and the third screen cylinder are sleeved and fixed with the rotating shaft in sequence from top to bottom; the lower end of the rotating shaft is connected with an output shaft of the motor; and three rice storage boxes are arranged on the frame. The machine finishes the rice classified screening process by using the combination of multiple screen cylinders, respectively collects the classified rice into the rice storage boxes, and has no need to frequently replace steel wire nets; and as each rice sucker is located in an independent working state, the smooth production of enterprises is facilitated.

The invention discloses a liquid open machine comprising a frame arranged with a liquid inlet and a liquid outlet, wherein the frame comprises an open device, a fiber leather separator and a discharge device communicated with a material outlet at one side of the frame, the open device, the fiber leather separator and the discharge device are all connected with a power transmitter. The open device is composed of a rotor and a casing in a chamber of the frame, while the rotor can be arranged with a dial flake or cam. The invention uses the rotor to move liquid and leather block in frame at high speed, to impact the block at high speed to be opened. Compared with prior art, the invention has simple structure, improved working efficiency, better leather fiber quality, long service life of device and low energy consumption.

The invention relates to heat supply equipment, in particular to a straw fuel flying furnace which comprises a furnace body (1), a hearth (2), a fire grate (3) and a smoke exhaust pipe (5), wherein the furnace body (1) is externally connected with a fan (8), and an air supply pipe (9) of the fan (8) enters the hearth (2) from one side of the furnace body. The straw fuel flying furnace is characterized in that a fuel hopper (6) is arranged outside the furnace body (1), a blanking pipe (7) under the fuel hopper (6) is communicated with the air supply pipe (9) of the fan (8); and one end of the air supply pipe (9) entering the hearth (2) is provided with a cyclone guide curved surface (4). Fuel is combusted in rotatably flying after entering the hearth following wind, is not easy to accumulate, and is fully combusted. The fan blows the fuel by using hot air in the hearth to ensure that straws are heated in advance to be ignited. The furnace body and a flue are both provided with residual head recovery devices, thereby closing various channels of heat loss and remarkably improving the heat efficiency. The invention is suitable for being used as various heat exchange devices of a hot air furnace, a hot water furnace, an oil furnace and the like, replaces coal furnaces to carry out various heat supply operations, and has important implications on saving coal, protecting environment, fully utilizing crop plants, improving the straw value, and increasing the income of farmers.

The invention discloses a packaging structure of a semiconductor device and a manufacture method thereof, wherein the packaging structure of the semiconductor element comprises a base body, a semiconductor device, a plurality of welding pads, at least one groove, through holes, an intermediate metal layer and a welding bump, wherein the base body comprises a front face and a back face opposite to the front face; the semiconductor device is positioned at the front face of the base body; the welding pads are respectively configured at the periphery of the semiconductor device; the grooves are positioned at the edge region of the back face of the base body; the through holes are positioned at the bottoms of the grooves corresponding to the welding pads; the intermediate metal layer is electrically connected with the welding pads; and the welding bump is electrically connected with the intermediate metal layer. The through holes are not easy to have accumulated metal or insulation materials at openings, thereby greatly improving the yield of the product process and enhancing the reliability of the products.

The invention relates to the water treatment technical field, in particular to a preparing method and application of an ultra light water, wherein sulfureted hydrogen two-temperature exchange method or other alternative methods are adopted to produce ultra light water; sulfureted hydrogen two-temperature exchange method realizes separation of hydrogen isotopes through adopting multistage concatenation of cooling tower and thermal tower by use of isotope exchange reaction between sulfureted hydrogen and water; liquid raw material water enters from the top of the cooling tower and flows through the cooling tower and the thermal tower from above to below, while gas material sulfureted hydrogen is added from the part between the cooling tower and the thermal tower and circulates inside the cooling tower and the thermal tower from bottom to top inside; heavy components inside the cooling tower is transferred towards liquid phase through chemical exchange so as to be concentrated inside the liquid phase; liquid material with concentrated the heavy components completes chemical exchange with ascending gas during flowing through the thermal tower, thereby, the heavy components are transferred towards gas phase; finally, finished product with lower content of heavy hydrogen can be obtained after liquid phase material discharged from the thermal tower enters into a degassing column to removing sulfureted hydrogen. The invention has the health effects such as delaying aging, radiation resisting, resisting cell mutation, activating immunocyte, improving basal metabolism level of human body, improving sleep, enhancing physical function of male, beauty and body slimming.

The invention relates to a powder grinding device, in particular to a dry powder raw material grinding device for producing a fire extinguisher. The dry powder raw material grinding device for producing the fire extinguisher is high in smashing efficiency, smashing is uniform, and raw materials are not stacked easily in the smashing process. According to the technical scheme, the dry powder raw material grinding device for producing the fire extinguisher comprises a bottom plate, a left support, a right support, a round supporting plate, a grinding box, a collecting box, a supporting rod, a first rotating shaft, a fan-shaped gear, an air cylinder, a grinding wheel, an electric pushing rod and the like. The left support is arranged on the left side of the top of the bottom plate. The rightsupport is arranged on the right side of the top of the bottom plate. The round supporting plate is arranged in the middle of the top of the bottom plate. According to the dry powder raw material grinding device, the electric pushing rod serves as the main power source to drive the grinding wheel to swing to carry out grinding, meanwhile, by means of mutual cooperation of the fan-shaped gear and arack, a baffle moves left and right indirectly, the raw materials are discharged intermittently, the raw materials are ground while being discharged, and the raw materials are not stacked easily in the grinding process.

The invention relates to the technical field of animal husbandry equipment, and particularly relates to a wet-and-dry automatic feeding trough which is especially suitable for being applied to the feeding of live pigs. According to the technical scheme, the wet-and-dry automatic feeding trough comprises a feed trough, a feed basket and a driving lever structure, wherein the feed basket is arranged above the feed trough and provided with a discharge hole, and the driving lever structure is used for achieving an effect of automatic feeding; and the automatic feeding trough is characterized in that the driving lever structure comprises a rotating shaft, a rotating arm, a driving lever and a material dispersing platform, wherein the rotating arm is arranged on the rotating shaft and close to the discharge hole and extends outwards along the middle part of the discharge hole, the driving lever is arranged on the rotating shaft and used for driving the rotating arm to rotate through the rotating shaft, and the material dispersing platform is arranged below the discharge hole, sleeved on the exterior of the rotating shaft, linked with the driving lever, and used for enabling feeds to slide towards the periphery of the feed trough along the rotating shaft in the horizontal direction. The automatic feeding trough disclosed by the invention has the advantages of uniformity in feeding, smoothness in feeding and blocking avoidance, and is suitable for not only dry feeds, but also wet feeds.

The invention provides an oil slick recovery device, which comprises three buoys (5) and an oil slick suction device (4), wherein the three buoys (5) are fixedly connected to form a triangle by a connecting frame; the oil slick suction device (4) is connected with the three buoys (5), and has a sleeve shape; a taper reamed hole is formed at the oil slick inlet end (41) of the oil slick suction device (4); and the periphery of the taper reamed hole is outwards bent to form an r-shaped weir crest (43). When flowing to the periphery of the weir crest of the oil slick suction device, oil slick or scum can flow into the weir crest without hindrance along the edge of an r shape, and is difficult to accumulate about the weir crest; and the oil slick inlet end of the oil slick suction device adopts the taper reamed hole structure, so the external diameter of the oil slick inlet end and the oil slick is easier to rapidly and forcibly recover.

The invention relates to the technical field of animal husbandry equipment, in particular to an automatic feeding trough, which is particularly suitable for being used for feeding pigs. The automatic feeding trough is realized through the following technical scheme that the automatic feeding trough comprises a feed trough, a feed barrel and a pulling rod structure, wherein the feed barrel is positioned above the feed trough and is provided with a feed outlet, the pulling rod structure is used for realizing the automatic feeding and comprises a rotating shaft, a rotating arm and a driving rod,the rotating arm is arranged on the rotating shaft, is near the feed outlet and outwards extends along the middle of the feed outlet, and the driving rod is arranged on the rotating shaft and is usedfor driving the rotating arm to rotate through the rotating shaft. The automatic feeding trough has the advantages that the baiting is uniform and smooth, and in addition, the blockage cannot easily occur.

The invention discloses an airbag type ventilation and drainage positive and negative pressure water hammer control valve group. The airbag type ventilation and drainage positive and negative pressure water hammer control valve group is arranged on an infusion pipeline or a container system and comprises a water hammer relief valve, a trace exhaust valve, a high-speed exhaust valve, a rear regulating valve, a negative pressure air suction valve, a manual venting and draining valve and a monitoring pressure gauge; the rear regulating valve is arranged at the outlet end of the high-speed exhaust valve; the water hammer relief valve is directly connected with the top or the lateral side of the negative pressure air suction valve through threads or a flange; the trace exhaust valve is connected with a hole which is formed in the front of the water hammer relief valve; the high-speed exhaust valve is directly connected with the top or the lateral side of the negative pressure air suction valve through threads or a flange; the negative pressure air suction valve is connected with the external infusion pipeline. According to the airbag type ventilation and drainage positive and negative pressure water hammer control valve group which is integrated and omni-directional, the structure is compact and firm, the conveying and the installation are convenient, the reliability is strong, the positive pressure water hammer can be relieved, the relief speed is high, and the water hammer of cavities collapsing due to the negative pressure can be inhibited.

The invention discloses a waste tire crushing device and a crushing method thereof, and belongs to the technical field of waste tire crushing. The waste tire crushing device comprises a box body, a crushing mechanism, a first driving mechanism, a herringbone heat insulation plate and a plurality of discharging holes; the box body is provided with a feed port at the top, supporting legs at four corners of the bottom and a discharge port at the rear end; the crushing mechanism is arranged in the feed port; the first driving mechanism is arranged at the front end part of the box body; the first driving mechanism is further connected with the crushing mechanism to realize the rotation of the crushing mechanism; and the herringbone heat insulation plate is arranged between the front inner walland the rear inner wall of the box body, the discharging holes are formed in the top of the herringbone heat insulation plate, and a first crushing chamber is formed between the herringbone heat insulation plate and the feed port. According to the waste tire crushing device and the crushing method thereof, the device facilitates heating during crushing, the mass of rubber can be reduced, the rubber can not stacked on the bottom by pumping the helium gas so that efficient stirring can be achieved, meanwhile, helium gas belongs to inert gas, so that the rubber is nonflammable in the crushing process, the temperature is reduced through cooling, the rubber is rapidly cooled, the crushing effect is good, and the efficiency is high.

The invention discloses a vertical hydrapulper with a drum groove body and spiral backflow plates. The vertical hydrapulper comprises the groove body and a rotor installed at the bottom of the groove body. The groove body is in a drum shape and comprises an upper ellipsoid part and a lower inverted cone part. The inner wall of the groove body is provided with the backflow plates arranged in an ascending spiral line mode. The rotating direction of the backflow plates is opposite to that of the rotor. Due to the groove body structure, the vertical hydrapulper has the good circulating, stirring, shearing and gathering functions on paper in the pulping process, and has the advantages of being small in energy loss, high in pulping efficiency, stable in operation and the like.

A method for forming a semiconductor structure comprises the following steps: a substrate is provided, wherein the surface of the substrate is provided with a mask layer which exposes part of the surface of the substrate; part of the substrate is etched with the mask layer as a mask, openings are formed in the substrate, and a fin part is formed on the substrate between every two adjacent openings; a dielectric layer filing each opening is formed in the opening; and part of the dielectric layers and part of the fin parts are etched by a back-etching process to make the surfaces of the dielectric layers lower than the top surfaces of the fin parts, the side walls of the fin parts inclined relative to the surface of the substrate, and the top size of the fin parts smaller than the bottom size. The method for forming a semiconductor structure is simple, the size of a semiconductor structure formed by the method is accurate and easy to control, and the performance of a fin type field effect transistor formed by the semiconductor structure is improved.

The invention relates to a preparation method of a uniform sponge porous polyvinylidene fluoride mixed matrix membrane with high rejection rate and strong pollution resistance. The preparation methodcomprises the following steps: preparing a polyvinylidene fluoride membrane casting solution containing a nano SnO2-graphene oxide composite material, and preparing the polyvinylidene fluoride mixed matrix membrane from the polyvinylidene fluoride membrane casting solution by using a non-solvent induced phase separation method. Compared with like membranes in the prior art, the ultrafiltration membrane prepared by the preparation method has the advantages of excellent anti-pollution performance, high rejection rate, simple preparation method and the like.

The invention relates to a high-dietary-fiber and low-carbon-water meal replacement powder and a preparation method thereof. The meal replacement powder mainly comprises the following components in parts by weight: 10-55 parts of oat bran, 10-50 parts of inulin, 3-25 parts of MCT powder, 2-40 parts of semen cannabis protein, 10-30 parts of soybean protein, 2-15 parts of pea fibers, 0.5-2.5 parts of konjac powder, and 5-10 parts of coconut powder. The high-dietary-fiber and low-carbon-water meal replacement powder is a formula food, belongs to a special diet, and has the characteristics of highdietary fiber, low carbon water, low calorie, strong satiety, simple composition, rich and balanced nutrition, convenient carrying and consumption, fine and smooth mouthfeel and palatability. Therefore, the high-dietary-fiber and low-carbon-water meal replacement powder not only can more strictly control food intake and calorie intake thereby achieving the purpose of weight control, but also hasthe effects of controlling blood sugar rising and stabilizing blood sugar.

A method for forming a semiconductor structure comprises the following steps: a substrate is provided, wherein the surface of the substrate is provided with a mask layer which exposes part of the surface of the substrate; part of the substrate is etched with the mask layer as a mask, openings are formed in the substrate, and a fin part is formed on the substrate between every two adjacent openings; after the fin parts are formed, the size of the mask layer in the direction parallel to the surface of the substrate is reduced to enable the mask layer to expose part of the top surfaces of the fin parts; and after the size of the mask layer in the direction parallel to the surface of the substrate is reduced, the fin parts are etched with the mask layer as a mask and by a directional etching process to make the side walls of the fin parts inclined relative to the surface of the substrate and the top size of the fin parts smaller than the bottom size. The size of a semiconductor structure formed by the method is accurate and easy to control, and the performance of a fin type field effect transistor formed by the semiconductor structure is improved.

The invention relates to a forming method for an ultra-thin absorption core. The formed absorption core body comprises an upper absorption core layer, a middle absorption core layer and a lower absorption core layer which are stacked in sequence, the middle absorption core layer is wavy, and the wavy top end and the wavy bottom end of the middle absorption core layer are fixed to the upper absorption core layer and the lower absorption core layer through spot-breaking glue spraying; the middle absorption core layer is provided with a plurality of small holes; and the two sides of the lower absorption core layer are folded to the top of the upper absorption core layer to be fixed to form folded parts. The invention relates to the field of disposable hygienic products, when liquid enters the absorption core body, the upper absorption core layer and the lower absorption core layer can move relative to each other to form a buffer space, so that the middle absorption core layer forms a wave shape during production, the capacity of buffering and absorbing the liquid in the absorption core body is improved, the liquid is prevented from leaking, and the technical problems that the absorption core body is poor in flow guide effect and absorption capacity, so that liquid easily flows out are solved.

The invention discloses a circulating fluidized bed boiler capable of adjusting a circulating ash flow. The circulating fluidized bed boiler comprises a hearth, an ash return pipe, a tail flue, a cyclone separator and an ash returner, and is characterized by further comprising an ash conditioner and a slag cooler, wherein the ash conditioner consists of a venturi fluidized air chamber and a cylindrical ash cooling chamber; the venturi fluidized air chamber is communicated with the ash cooling chamber; a first flow equalizing annular plate, a snakelike cooling coil and a second flow equalizing annular plate are connected into the ash cooling chamber; the first flow equalizing annular plate and the second flow equalizing annular plate are both porous structures; the venturi fluidized air chamber is formed by an expansion section, a cylinder section and a shrinkage section, which are communicated with each other; the ash cooling chamber is connected with an ash return valve of the ash returner through an ash discharge pipe; an ash return pipe is connected between the ash return pipe and the ash cooling chamber; an isolating valve is mounted on the ash return pipe; and the venturi fluidized air chamber is connected with the slag cooler through the ash discharge pipe. The circulating fluidized bed boiler is advantageous in that, circulating ash can be introduced to the boiler to adjust the load inside in a large range, so that the combustion efficiency of a fuel in the boiler is greatly improved, and the inner wall wear of the boiler is reduced.

The invention discloses a preparation method of a high-density silicon carbide ceramic composite material. The preparation method comprises the following steps of: S1, putting silicon carbide powder,carbon black, boron nitride nanosheets and a combustion assistant into a grinder, carrying out wet ball-milling mixing, drying, and screening to obtain mixed powder; S2, carrying out compression molding on the mixed powder by adopting a cold isostatic pressing molding process to obtain a biscuit; S3, performing pressureless vacuum sintering on the biscuit so as to obtain a presintered body; and S4, performing spark plasma sintering on the presintered body to obtain the silicon carbide ceramic composite material. According to the preparation method, wet ball-milling mixing is performed on the raw materials in a reasonable ratio to obtain the mixed powder; compression molding is performed on the mixed powder by adopting the cold isostatic pressing process to obtain the biscuit with relatively high density; and the biscuit issintered through a pressureless sintering and spark plasma sintering combined manner; and therefore, the preparation of the high-density, high-hardness and high-strength silicon carbide ceramic composite material is realized. The method is simple in process and convenient for industrial production.