279results about How to "Reduce shear force" patented technology

The invention provides a high-density substrate stack packaging structure and a packaging method, and relates to the technical field of semiconductor packaging. The high-density substrate laminated packaging structure comprises a first chip, a conductive wire arc, a first plastic packaging body and a first dielectric layer. The first chip is provided with a first bonding pad. The two ends of the conductive wire arc are connected to the same first bonding pad. The first plastic package body wraps the first chip; and a first wiring layer electrically connected with the conductive wire arc is arranged in the first dielectric layer. The first dielectric layer covers one side, close to the first bonding pad, of the first plastic package body. The surface of the first dielectric layer is provided with first salient points electrically connected with the first wiring layer. And the shearing force borne by the chip in the grinding process can be reduced, and the chip is prevented from being damaged or subfissured.

The invention discloses organic material and microbial agent coupled fertilization equipment and method, the organic material and microbial agent coupled fertilization equipment comprises a mixing box, the bottom of the mixing box is of a semicircular structure, and the upper part of the mixing box is of a rectangular structure; a partition plate is fixedly connected to the upper portion of the mixing box and divides the upper space of the mixing box into an organic material feeding cavity and a soil feeding cavity. A storage box is arranged on one side, close to the soil feeding cavity, of the upper part of the mixing box; a circular cavity is formed in the bottom of the mixing box; a mixing barrel with two closed ends is rotationally connected into the circular cavity; firstly, a microbial agent and a carrier are preliminarily mixed, then the coupled microbial agent is put into a mixing barrel, the clay carrier and the microbial agent are mixed to protect the microbial agent, the microbial agent is not directly subjected to violent reaction or excessive stirring with other materials, the shearing force of a stirring rod is reduced, and the use of the soil carrier can help maintain the stability and activity of the microbial agent; meanwhile, the uniform distribution of the fungicide and the organic materials is ensured.

The invention belongs to the technical field of microbial fermentation, and particularly relates to a comprehensive utilization method of corn processing waste resources, which comprises the following steps: mixing corn steep liquor with calcium hydroxide, phytase and aspergillus oryzae SLY-M-15 leavening, carrying out enzymolysis, carrying out primary fermentation with corn bran, bacillus licheniformis, bacillus subtilis and saccharomyces cerevisiae, and carrying out secondary fermentation with corn bran, bacillus licheniformis, bacillus subtilis and saccharomyces cerevisiae; finally, lactobacillus fermentum and lactobacillus casei are inoculated for secondary fermentation, so that comprehensive utilization of the corn bran and the corn steep liquor is realized, and the contents of phytic acid, sulfite, zearalenone and vomitoxin are reduced; when the obtained third treatment product is applied to animal feed, the metabolism of mycotoxin can be influenced, and the content of zearalenone and vomitoxin can be reduced; further, the average daily gain can be improved, and the material-to-weight ratio is reduced; slaughtering performance can also be improved, for example, carcass weight, semi-eviscerating slaughtering rate and full eviscerating slaughtering rate are improved; the meat quality can be improved, such as the pH value is increased, the steaming loss is reduced, the shearing force is reduced, and the crude fat content is reduced.

The invention relates to the technical field of Wenchang chicken raising, and discloses a Wenchang chicken raising method capable of reducing raising cost and improving meat quality, which comprises the following steps: raising chickens at the age of 81-120 days by adopting cages, five chickens in each cage, limiting large-range activities, naturally illuminating in daytime, turning on a lamp for illumination at night, carrying out intensive and large-scale raising, and feeding bred chicken feed for 3-5 times every day, 22-25% of tapioca flour is mixed in the breeding chicken feed. By adding 20% of tapioca flour, the Wenchang chicken can obtain the optimal production performance; 5.00%-25.00% of cassava flour is added into the feed, so that the meat quality of the Wenchang chicken of 81-120 days old cannot be affected, and the muscle flavor and the protein nutritional value of the Wenchang chicken cannot be changed. 10% of tapioca flour is added to feed Wenchang chickens, so that the muscle tenderness can be improved, the intramuscular fat content is increased, and the meat quality is improved; 20% of tapioca flour is added, so that the pH of pectoral muscles can be increased for 24 hours, the density of leg muscles is increased, the shear force and diameter of the muscles are reduced, the shelf life of the pectoral muscles is prolonged, and the tenderness of the muscles can be improved.

The utility model relates to the field of harvesting machinery, and discloses a harvesting machinery, a threshing device and a concave grid thereof, the concave grid comprises a supporting frame, a plurality of longitudinal partition plates (3) and a plurality of grid strips (4), the longitudinal partition plates (3) and the grid strips (4) are connected to the supporting frame and mutually staggered and extend to form a grid, and a plurality of slots (31) which are distributed at intervals are respectively formed in each longitudinal partition plate (3). The grate bars (4) penetrate through the slots (31) to extend, and the portion, between every two adjacent slots (31), of each grate bar (4) protrudes towards the radial inner side. In the process that crop straw rotates along with the threshing cylinder, the concave grid is beneficial to separation of grains from the straw, the grain separation rate is increased, meanwhile, the amount of crushed straw and weeds carried in the separated grains is reduced, the risk that the grains are crushed or the surfaces of the grains are damaged is reduced, and the crushing rate and the loss rate of the grains are remarkably reduced.

The present invention provides a method for tenderizing eliminated laying hens with alternating dual-frequency ultrasound, comprising the following steps: pre-treating the breast meat of eliminated laying hens, and then using a tenderizer to perform coordinated ultrasound treatment, to obtain the result; the tenderizer includes calcium chloride and protease; the ultrasound is alternating dual-frequency ultrasound (22 / 40kHz). The ultrasonic device of the present invention adopts a concentric circle arrangement mode of ultrasonic vibrators, which can provide an external uninterrupted alternating dual-frequency ultrasonic physical field for the entire tenderizing process of eliminated laying hens, and maximize the penetration of calcium chloride and protease solution into the deep layer of muscle tissue. The former calcium chloride can increase the ion strength in the muscle, improve the ion distribution, and enhance the water retention of muscle fibers; the latter protease hydrolyzes and refines the muscle fibers, disintegrates the macromolecular protein of the muscle fibers, and reduces the shear force, thereby improving the tenderness of the eliminated laying hens.

The invention relates to the technical field of metal composite wires, in particular to a manufacturing method and device of a double-layer metal composite wire. The manufacturing method comprises the following steps that S1, a double-layer metal composite blank rod is taken, the double-layer metal composite blank rod comprises a core layer metal wire and a metal coating layer coating the outer side of the core layer metal wire, and the tensile strength of the metal coating layer is larger than that of the core layer metal wire; s2, the double-layer metal composite blank rod is subjected to multi-pass drawing, a composite metal wire is obtained, pulse current is applied to a metal coating layer located in a drawing area in the drawing process, the mechanical property of the metal coating layer is made to be matched with that of a core layer metal wire, and interface fracture is restrained; and S3, the composite metal wire is subjected to annealing treatment, and the composite metal wire is obtained. According to the method, the effect that only the metal coating layer is softened is achieved by controlling pulse current parameters and utilizing the skin effect and the electroplastic performance, the drawing deformation of the inner metal and the drawing deformation of the outer metal are consistent, the quality of the composite wire is improved, and the method is suitable for the situation that the conductivity of the inner-layer metal is larger than that of the outer-layer metal.

The invention relates to an emulsifying and mixing device, in particular to an emulsifying device for preparing a defoaming agent. The technical problems that according to an existing emulsifying device, the shearing force of stirring equipment is inconvenient to adjust according to the state of raw materials, granular raw materials are prone to being accumulated on mixing blades, materials on the inner side wall of an emulsifying barrel are inconvenient to scrape off, and then the mixing and emulsifying effect is poor are solved. The emulsifying device for preparing the defoaming agent comprises a bottom frame, a fixing ring, an emulsifying barrel and the like, a fixing ring is mounted on the bottom frame, and an emulsifying barrel is mounted on the fixing ring. When raw materials are primarily mixed, the angles of the mixing blades are approximately parallel to the surfaces of the raw materials, so that the shearing force can be reduced, the raw materials can penetrate through the fixing holes, the area of the surfaces of the mixing blades directly impacted by the raw materials can be reduced, the shearing force is further reduced, and meanwhile, accumulation of the raw materials on the mixing blades is avoided; raw material deposition on the mixing blades is reduced, and uneven stirring caused by the fact that granular raw materials are attached to the mixing blades is avoided.

The invention relates to the technical field of steel pipe cleaning, and discloses a steel pipe inner and outer surface treatment process and treatment equipment thereof.The steel pipe inner and outer surface treatment process comprises a lifting machine and a base, the top of the base is fixedly connected with a cleaning pool, the outer wall of the lifting machine is fixedly connected with a lifting motor, and a steel cable is wound in the lifting motor; the double-layer cleaning assembly is used for enabling the inner surface and the outer surface of the steel pipe to be fully cleaned, the circulating contact assembly is used for keeping the cleaning effect consistent, and through the limiting and guiding effects of a guiding gasket, a blocking gasket, a conical guiding ring and a guiding block, clean water forms fluid of a spiral structure; the two spiral fluids are used for cleaning the two sides and the middle of the inner surface of the steel pipe correspondingly, it is guaranteed that the cleaning reaction is conducted uniformly in the steel pipe, the uniformity and quality of the cleaning effect are improved, and due to the fact that the spiral clear water can make effective contact with the surface of the steel pipe, consumption of the clear water is reduced.

The invention relates to the field of cell culture equipment, in particular to an adherent cell culture reactor, and aims to solve the problems that some cells at the bottom of a culture dish are easy to lack nutrition when the cells are subjected to static culture at present, so that growth stagnation and even necrosis are caused; according to the adherent cell culture reactor provided by the invention, the problem that the cells are easily damaged and even die due to shearing force generated by stirring a culture solution through stirring equipment is solved, the adherent cell culture reactor is provided, and the adherent cell culture reactor consists of a left shell and a right shell which are symmetrically arranged and side plates which are fixedly connected between the two shells and are arranged on the front side and the rear side; the lower side of the vertical plate is provided with a driving structure for controlling the incubator to rotate at a steady speed, the inner walls of the two protective covers are respectively and fixedly connected with a culture bed, and the adherent cells can be driven to uniformly stay in the culture beds in the steady-speed rotation process of the incubator; the culture solution flows towards one direction in the steady-speed rotation process of the culture device, so that the shearing force generated during the circulation of the culture solution can be greatly reduced, and the damage to cells is reduced.

The invention relates to a quaternary ammonium salt modified strong anion monolithic column, and discloses a monolithic column material, and quaternary ammonium salt groups are grafted on the internal surfaces of pores and channels in the monolithic column material. The quaternary ammonium salt group exists in the form of EP-OCH2CH (OH) CH-N + R1R2R3. The monolithic column prepared by the invention is rich in hydroxyl groups, has excellent compatibility to an elution object containing biomacromolecules, has excellent specific adsorption capacity for nucleic acid substances, and is suitable for enrichment and separation of DNA and / or RNA substances.

A fully automatic press quenching tool for special-shaped driven bevel gears, used in the field of mechanical manufacturing technology. The centering aid is installed in the center bottom hole of the quenching press worktable, and its positioning rod is pressed against the inner wall of the center bottom hole of the quenching press worktable; the centering fixture is threadedly connected to the center rod of the quenching press, and the centering fixture and the centering aid body are hole-shaft matched, and the centering fixture is in contact with the inner hole of the part to center it; the outer die is pressed into contact with the tooth surface of the part. The present invention uses a centering aid to guide the part, which can ensure the concentricity of the center of the part and the center of the quenching press worktable, realizes a fully automatic press quenching process, effectively solves the quality problem of unstable gear heat treatment deformation, and can ensure the consistency of gear heat treatment quenching deformation. The gear heat treatment deformation is significantly improved, and the flatness deformation is 0.06mm-0.1mm. The tooth profile accuracy after heat treatment is good and can reach level 7-9, which effectively reduces the attenuation of tooth profile accuracy, has low labor intensity, and high operating efficiency.

The present application relates to a pair of oil palm harvesting scissors, wherein a first driving motor is provided in a mounting circular groove at one end of a gripping rod, and is transmission-connected with a lead screw, a movable block is provided on the outer threaded sleeve of the lead screw, and a movable knife is provided on the movable block; an end mounting seat is mounted and connected to the gripping rod, and is provided with a fixed knife; in the length direction of the gripping rod, the fixed knife and the movable knife are located on the same straight line; when in use, the lead screw is controlled to rotate by the first driving motor, thereby driving the movable knife on the movable block to move toward the fixed knife, so as to trim the oil palm petiole located between the movable knife and the fixed knife; after trimming, the movable knife and the fixed knife move in the opposite direction, thereby realizing automatic shearing and accelerating the trimming efficiency; in addition, the movable knife and the fixed knife are arranged at intervals on a straight line, so that the scope of application is wider, and the blades of the movable knife and the fixed knife are in the opposite direction to the width of the oil palm petiole, and the shearing force is applied along the thickness direction of the oil palm petiole to avoid shearing along the width direction of the oil palm petiole, thereby reducing the required shearing force.

The invention discloses a rotary biological culture and observation device, and belongs to the technical field of biological culture devices, the rotary biological culture and observation device comprises a control display terminal and a control host, and further comprises an environment adjusting system, a culture dish rotating system arranged in the environment adjusting system and an imaging system; the environment adjusting system comprises a culture cabin, the culture cabin comprises a cabin chamber and a cabin door connected with the cabin chamber, and a plurality of culture dish rotating systems are circumferentially distributed in the cabin chamber. By adopting the rotary biological culture and observation device, the culture dish rotating system can optimize a cell growth environment and improve the nutrient exchange rate of biological cells by utilizing centrifugal force generated by rotation and hydrodynamic characteristics, and the environment adjusting system can provide a gas development environment and a temperature development environment for biological sample culture; the phenomena of slow development or death of biological sample cells are reduced, and the culture success rate is increased. Meanwhile, the imaging system can realize real-time imaging and observation of the development state of the biological sample on the premise of not destroying the culture environment.

The reverse hedging type steam seal device of the steam turbine comprises a steam seal body, high teeth are arranged on an inner ring of the steam seal body in the radial direction, and a gas seal groove channel is formed in the side, facing the low-pressure end, of each high tooth; a main cavity is formed in the air seal channel, an energy consumption cavity is formed in the left side of the main cavity, a hedging cavity is formed in the right side, and a cavity inlet is formed in the bottom. After entering the main chamber, the steam main flow leftwards forms a first steam branch flow to enter the energy consumption chamber, and rightwards forms a second steam branch flow to enter the hedging chamber; an energy consumption structure is arranged on the inner wall of the energy consumption chamber, and the energy consumption chamber is provided with an energy consumption channel for communicating the first steam branch flow with the steam main flow; the inner wall of the hedging chamber is smooth, the hedging chamber is provided with a reversely inclined hedging channel, and the second steam branch flow and the steam main flow form a reverse steam flow hedging effect through the hedging channel. According to the invention, the leakproofness of the steam seal can be effectively improved, and the problem of movement of the rotor shaft is reduced on the basis.

The invention provides a method for regulating and controlling the friction coefficient of a carbon-based thin film through friction-induced sliding interface reconstruction, and belongs to the technical field of carbon-based thin film materials. The preparation method comprises the following steps: firstly, depositing a transition metal intermediate layer on the surface of a pretreated substrate as a bonding layer, respectively taking carbon and transition metal carbide as sputtering targets, adjusting the condition of second sputtering to obtain a carbon-based film containing transition metal carbide nanocrystals with different sizes, and then performing friction treatment to obtain the carbon-based film containing the transition metal carbide nanocrystals with different sizes. The transition metal carbide nanocrystals are excited to be subjected to an oxidation reaction to form oxidation products, meanwhile, the oxidation products are driven to be screened and migrated, a transition metal oxide transfer film is spontaneously constructed, and the sliding interface with the low shearing force and weak adhesion characteristics is constructed; therefore, the friction coefficient of the carbon-based thin film is regulated and controlled through friction-induced sliding interface reconstruction.

The invention relates to the field of premixing devices, in particular to a premixing device for anti-corrosion spraying materials, which comprises a feeding mechanism for conveying and heating spraying raw materials; the premixing mechanism is used for expected mixing of spraying raw materials, and the supporting frame is fixedly connected to the outer side of the premixing mechanism; the stirring mechanism is used for performing formal stirring treatment on the spraying raw materials; the standing mechanism is used for carrying out standing defoaming on the mixed spraying material; according to the premixing device for the anti-corrosion spraying material, two different spraying raw materials oppositely impact on a double-head net, at the moment, part of the spraying raw materials penetrate through holes in the double-head net, impact together and then enter a hollow table, and finally the spraying raw materials are discharged downwards through an outlet pipe. And at the moment, the preliminary premixing treatment effect on the two spraying raw materials is achieved.

The invention relates to the technical field of turning-over devices, and discloses a turning-over device suitable for critical care, comprising a bed body, the bed body comprises a bed frame, the inner wall of the bed frame is fixedly connected with a fixing frame, and the lower surface of the bed frame is fixedly connected with supporting legs; a folding mechanism for assisting a patient in turning over is arranged on the upper surface of the fixing frame; wherein the folding mechanism comprises a middle plate, and the middle plate adopts an isosceles trapezoid design. The turning-over device suitable for critical care can effectively solve the problems that in the prior art, most turning-over beds assisting patients in changing body postures are of a single-side turning-over structure from the middle position of a bed body, due to the shape and structural characteristics of the human body, when the turning-over beds are turned over along the central axis, the moving speeds and paths of different parts of the body are difficult to completely synchronize, and the turning-over effect is poor. When the upper half body is turned over, the position of the upper half body is changed faster than that of the lower half body, so that shearing force is generated between the skin and the bed surface, and the risk of pressure sores is increased due to the shearing force.

The invention discloses a monolithic column material. Pyridine groups are grafted on the inner surfaces of pores and channels in the monolithic column material. The pyridyl exists in the form of EP-OCH2CH (OH) CH-SPy, and the structural formula is shown in the description. The monolithic column prepared by the invention is rich in hydroxyl groups, has excellent compatibility to an elution object containing biomacromolecules, has excellent specific adsorption capacity for nucleic acid substances, and is suitable for enrichment and separation of DNA and / or RNA substances.

The utility model relates to the technical field of stacking machine, concretely relates to a split type lower crossbeam and stacking machine, including installation subassembly, installation subassembly includes the crossbeam body that sets along the length direction of ground rail, and the both ends of crossbeam body are connected with installation horizontal plate respectively, and the roller wheel group that forms detachable connection with installation horizontal plate respectively, and the installation horizontal plate is driven along the length direction of ground rail and moves by roller wheel group, and the roller wheel group forms the upward support to installation horizontal plate to exert the upward support force Fa to installation horizontal plate, the utility model discloses the both ends of crossbeam body are set up installation horizontal plate respectively, and the detachable bolt connection is formed with roller wheel group through installation horizontal plate simultaneously, so that installation horizontal plate exerts the downward pressure to the top of roller wheel group, and then the top of roller wheel group exerts the upward support force Fa to installation horizontal plate and crossbeam body, reduces the shear force that roller wheel group bears, and then avoids the shear deformation of bolt, reduces the difficulty of roller wheel group dismounting.

The utility model relates to the technical field of engines, and discloses an oblique notch connecting rod which comprises a connecting rod body with a first combination face, a connecting rod cover with a second combination face and a connecting rod bolt, the connecting rod bolt is used for connecting the connecting rod cover and the connecting rod body so that the first combination face can be attached to the second combination face, and the first combination face is a curved face. And the second combination surface is a curved surface matched with the first combination surface. The connecting rod cover is limited in all directions on the combination surfaces through the cooperation of the first combination surface and the second combination surface, the situation that the connecting rod cover moves relative to the connecting rod body on the combination surface is avoided, and therefore the shearing force borne by a connecting rod bolt is shared through the cooperation of the connecting rod cover and the connecting rod body, and the service life of the oblique notch connecting rod is prolonged; the situation that a locating pin needs to be additionally arranged for locating the connecting rod cover, and therefore the situation of over-locating is avoided, meanwhile, the requirement for machining precision of the connecting rod bolt and the bolt hole is lowered, and the yield of the oblique notch connecting rod is improved.

According to the semiconductor product processing equipment and the mist discharging system, the mist discharging fan is connected with the rack through the damping mechanism, vibration of the mist discharging fan can be effectively prevented from being transmitted to the rack, the machining precision can be improved, the damping mechanism can adopt different structures according to needs, and when a connector is adopted, the connector is connected with the mist discharging fan through the damping mechanism. The connector is connected to the top of the first supporting rod through the first damping connecting base and connected to the bottom of the second supporting rod of the rack through the second damping connecting base, the second supporting rod can effectively limit the connector, and the problem that the connector topples due to the fact that the mist discharging fan is arranged on the first side of the connector is solved; shear force borne by bolts for connecting the first and second damping connecting seats with the first and second supporting rods is reduced, and the structural stability and safety of the damping structure are effectively guaranteed. When the bracket is adopted, the structure is simple, and a two-stage damping structure is adopted, so that the vibration of the fog exhaust fan can be isolated from the rack to the greatest extent, and the influence on the main shaft is avoided.

The present invention discloses a conical rubber fender device with a groove structure drainage function, including a dock structure, on which a rubber fender is arranged: the rubber fender is composed of a conical and hollow fender part, a mounting part and a buffer part, the mounting part is located at the bottom of the fender part and is fixedly connected to the dock structure, the buffer part is located at the top of the fender part, and the bottom of the mounting part is provided with a diversion channel that is connected to the inner cavity of the fender part. In the present invention, the fender device enables the water flow in the rubber fender to be discharged quickly through the diversion channel opened on the mounting part, reduces the reaction force on the rubber fender caused by the slow outflow of the water flow in the rubber fender, ensures that the rubber fender is easier to absorb the impact energy when the ship is berthing, and through the provided buffer part, the force generated by the ship on the rubber fender from different angles can be buffered and pressure-released, effectively reducing the shear force on the rubber fender, making it safer, more reliable, and more durable.

The invention discloses wastewater treatment equipment and a traditional Chinese medicine decoction piece production wastewater treatment process, and relates to the field of sewage treatment equipment. The telescopic driving assembly can drive the cross connecting rod to contract or unfold, so that the cross connecting rod drives the folded plates to synchronously contract or unfold, the folded plates can be moved and adjusted according to the wastewater flow, the adjacent folded plates are located at a proper flocculation distance, and the flocculation effect is improved by adjusting the distance between the folded plates. According to the device, the flocculation treatment effect of the flocculation basin on wastewater with different flows can be ensured, meanwhile, all folded plates can be synchronously moved and adjusted through contraction of cross connecting rods during adjustment, so that the adjustment process of the folded plates is more convenient and quicker, and after the distance between the folded plates is adjusted, a plurality of lifting locking assemblies can be driven by a lifting driving assembly to synchronously descend, so that the flocculation treatment effect of the flocculation basin on wastewater with different flows is ensured. When the lifting locking assemblies move downwards, the corresponding sliding supporting assemblies can be locked and fixed on the top surfaces of the friction locking strips, so that the corresponding folded plates are locked, and the mounting stability of the folded plates in the flocculation basin is improved.

In a thin film rotating type stirring device, a side surface of a cylindrical part is configured from a first region which is divided into a belt shape along the circumferential direction of the cylindrical part and in which a plurality of holes penetrating in the inside-outside direction are formed, and a second region which is divided into a belt shape along the circumferential direction of the cylindrical part and in which a plurality of holes penetrating in the inside-outside direction are formed. And a plurality of holes penetrating in the inside-outside direction are formed so as to have an aperture ratio smaller than that of the first region or so as to be non-porous. The first region is disposed in a portion including the center of the cylindrical portion in the height direction, and the second region is disposed at a position from the upper end of the first region to the upper end of the cylindrical portion and from the lower end of the first region to the lower end of the cylindrical portion. When the width of the first region is Wp and the total height of the rotating member is H, the relationship 0 < Wp < 0.5 H is satisfied.

The invention relates to an external circulation bioreactor and a data monitoring method thereof. The external circulation bioreactor comprises: a reactor tank for accommodating a mixture of cells and a liquid; the outer circulation pipeline is arranged outside the reactor tank body and is communicated with the reactor tank body; and the monitoring equipment is mounted on the outer circulating pipeline. According to the invention, the influence of bubbles on the detection accuracy of the bioreactor electrode is avoided, so that the measurement result of the bioreactor is more accurate.

The utility model discloses a hollow membrane filtration device, including hollow membrane bundle, hollow tube and protective net, the hollow membrane bundle is provided in the said inner cavity, be provided with the cavity between the hollow membrane bundle and the inner wall of inner cavity, feed liquid in the cavity circulates along the axial direction of hollow membrane bundle, the hollow membrane bundle includes a plurality of hollow membrane silk that extends axially, the hollow membrane silk is provided with the protective net. The protection net circumferentially surrounds the outer side of the hollow membrane bundle and extends in the axial direction of the hollow membrane bundle, the protection net comprises a plurality of inner wires spirally arranged in the axial direction of the hollow membrane bundle and a plurality of outer wires spirally arranged in the axial direction of the hollow membrane bundle, a spiral inner channel is formed between every two adjacent inner wires, a spiral outer channel is formed between every two adjacent outer wires, and the outer channels are communicated with the inner channels. And the inner wires and the outer wires are interwoven to form meshes for radial circulation of feed liquid. According to the scheme, the obstruction of the protection net to the biological feed liquid in the circulation process is reduced, and the shearing force to the biological feed liquid is reduced, so that the damage of the shearing force to effective components in the biological feed liquid is reduced.

The production equipment comprises a tank body, a second motor is fixedly connected to the middle side of the upper portion of the tank body, the output end of the second motor is fixedly connected with a rotating shaft and penetrates through the tank body and an inner tank, and a plurality of stirring blades are fixedly connected to the outer side of the rotating shaft at equal intervals. And feeding valve mechanisms are arranged on the left side of the upper portion of the tank body and the middle side of the lower portion of the tank body, a second water inlet pipe is fixedly connected to the rear side of the upper portion of the tank body, and a first water inlet is fixedly connected to the upper side of the left portion of the tank body. According to the utility model, the fan-shaped stirring blades are driven by the motor to uniformly stir a microbial agent, so that the shearing force is reduced, oxygen is conveyed into the inner tank, and the growth and metabolism of aerobic microorganisms are promoted; the tank body is heated and insulated by the heating pipe and the insulating layer, and fungi are observed through the test tube and adjusted at any time, so that the yield and quality of the fungicide are improved.

The utility model relates to the technical field of track beam supports, in particular to a straddle type monorail traffic PC track beam support which comprises an upper swing and a lower swing, a single lug plate is arranged at the bottom of the upper swing, a rotating hole is formed in the single lug plate in the transverse bridge direction, a hinged shaft is rotationally arranged in the rotating hole, and a double-lug fork is arranged at the top of the lower swing. A sliding hole is formed in the double-lug fork, the two ends of the hinged shaft are inserted into the sliding hole, a first sliding plate and a second sliding plate which can slide mutually are arranged between the top and the bottom of the hinged shaft and the top and the bottom of the sliding hole, the first sliding plate is fixedly arranged on the hinged shaft, and the second sliding plate is fixedly arranged on the inner wall of the sliding hole. Sliding spaces are formed between the two sides, in the bridge direction, of the hinged shaft and the inner walls of the sliding holes, so that the upper pendulum can slide in the bridge direction relative to the lower pendulum through the first sliding plate and the second sliding plate. The upper pendulum and the lower pendulum of the support longitudinally move through the two sliding blocks, and abrasion of the hinged shaft and the lower pendulum is avoided.

A kind of TiAl alloy shaped blank package rolling method of imitating asynchronous rolling and TiAl alloy plate, the method comprises the following steps: preparing TiAl alloy shaped blank; The prepared TiAl alloy shaped blank is placed in the recess of corresponding stainless steel package, a composite isolation layer is filled between the TiAl alloy shaped blank and the outer layer stainless steel package, and welding is carried out, to obtain the TiAl alloy package blank of imitating asynchronous rolling;The obtained TiAl alloy package blank of imitating asynchronous rolling is placed in high temperature furnace, heated to 1100-1350 DEG C, and kept for 0.5-5h, then package rolling is carried out along the specified direction, and after every two passes, it is returned to the furnace and kept for 5-30min, after rolling, the rolled TiAl alloy package plate is placed in vacuum furnace for stress relief annealing;And the package shell on the rolled TiAl alloy package plate is removed by wire cutting method, to obtain TiAl alloy plate with deformation≥90%.The application also provides TiAl alloy plate prepared by the method.