9results about How to "Not blocked" patented technology

The utility model relates to the field of aquaculture, in particular to an aquaculture pond which comprises a pond body, a shrimp shell collecting frame is arranged on the side wall of the pond body, the shrimp shell collecting frame extends to the bottom of the pond through a shrimp shell conveying pipe, and the shrimp shell conveying pipe is connected with an air conveying pipe. When the aquaculture pond is used, the shrimp shell collecting frame is installed on the side wall of the pond body, air is introduced into the shrimp shell conveying pipe through the air conveying pipe, and shrimp shells are conveyed into the shrimp shell collecting frame from the end, extending to the pond bottom, of the shrimp shell conveying pipe in an air stripping mode to be collected. And when the gas stripping effect is insufficient, the gas stripping effect can be improved only by closing the aeration pipe in the tank body. The efficient gas stripping system is used for efficiently separating shrimp shells from the pond bottom in a gas stripping mode, the shrimp shell collecting effect is improved, it is guaranteed that a sewage draining exit at the pond bottom is not blocked by the shrimp shells, the burden of bottom sewage draining is reduced, and the function of an aquaculture system is improved.

The utility model provides a burner and a stove comprising the same, and belongs to the technical field of stoves. The combustor comprises an inner ring fire cover and an outer ring fire cover, and the outer ring fire cover is arranged on the periphery of the inner ring fire cover in a surrounding mode. The inner ring fire cover and the outer ring fire cover each comprise a fire cover body, a protruding part and a plurality of fire transferring holes. The protruding part is arranged around the periphery of the fire cover body and connected with the fire cover body. The multiple fire transfer holes are formed in the circumferential direction of the fire cover body, and any fire transfer hole penetrates from the inner side of the fire cover body to the outer side of the protruding part; the protruding part is provided with an overflow groove, and the overflow groove extends in the vertical direction and communicates with the bottom of the protruding part. And the overflow groove is arranged around the periphery of the fire cover body and is intersected and communicated with any fire transfer hole. During cooking, overflowing soup and other impurities are splashed into the fire transferring holes in the protruding part, can flow down from the bottom of the protruding part along the overflowing groove under the action of gravity and cannot flow into the fire transferring holes in the fire cover body, it is guaranteed that the fire transferring holes are not blocked, and fire can be emitted normally.

This application relates to the field of iron removal from sieves for electrical porcelain raw materials, and discloses an iron removal device for sieves for electrical porcelain raw materials, including a coarse screening iron removal mechanism, a ball milling mechanism, and a fine screening secondary iron removal mechanism. The ball milling mechanism includes: a frame, a drive source mounted on the frame, and a ball milling drum connected to the drive source; a coarse grinding component, which includes a first screen cylinder connected to the ball milling drum, and a plurality of first lifting bars arranged in a circumferential array fixedly connected to the inner wall of the first screen cylinder. By setting the first screen cylinder and the second screen cylinder, the material is wrapped in a mesh, so that the material is repeatedly collided with the circumferential surface during the process of being lifted and tumbled by the first or second lifting bars until the material is ground to a set size. After the material is ground, it directly detaches from the first or second screen cylinder during the tumbling process, ending the grinding prematurely. This achieves the effect of different grinding times for materials of different sizes, thereby making the material size more uniform.

This utility model discloses an ammonia waste gas purification device, including a main body, an absorption mechanism, a dehydration mechanism, and a treatment mechanism. The absorption mechanism includes an air inlet pipe and a barrier plate, the dehydration mechanism includes a flow guide and a mounting frame, and the treatment mechanism includes a reflux component and a control valve. With the cooperation of the above mechanisms, this device utilizes the strong affinity of water for ammonia, enabling an ammonia absorption efficiency of over 90%. Furthermore, the spray system has a simple structure, low operation and maintenance costs, and is suitable for continuous operation scenarios. In addition, this device removes water mist particles, avoiding "white smoke" pollution, and prevents water droplets in the exhaust gas from carrying unabsorbed ammonia for secondary emission, thereby protecting downstream equipment (such as activated carbon towers, fans, etc.) from corrosion or blockage.

The utility model discloses an air filter inner core subassembly relates to air filter element technical field. An air filter inner core subassembly includes: the outer layer metal support net, nanometer metal filter screen, inner layer metal support net that set up in proper order from outside to inside, the utility model has high strength, high breaking degree, high air permeability etc. advantage, second nanometer metal filter screen has good thermal stability, and it is more suitable for using under high temperature environment, and nanometer metal filter screen can take place elastic deformation under the airflow impact simultaneously, has good resilience, compares traditional paper filter core to avoid the fiber fracture problem of paper filter core, and nanometer metal filter screen compares paper filter core and will not because of humid etc. problem, and the problem of air permeability drop occurs, and the traditional paper filter core is in the case where air is humid, and moisture will cause paper filter core humid, causes dust and other foreign matters to adhere on paper filter core, and causes air permeability to drop, and then influence ventilation capacity.

The invention relates to the technical field of catalytic uranium extraction, and discloses a PAO doped BaTiO3 piezoelectric-adsorption material and a preparation method thereof.The preparation method comprises the following steps that S1, 0.8 g of polyacrylonitrile (PAN) is dissolved in 9.2 g of N, N-dimethylformamide (DMF), and a PAN solution with the mass concentration being 8% is prepared; s2, adding 1.07 g of hydroxylamine hydrochloride into the PAN solution to obtain a PAO solution; s3, BaTiO3 is added into the PAO solution, and the PAO-tBT nanofiber membrane is prepared through the mixed suspension liquid. PAN is oximated into PAO, a large number of amidoxime groups (-C (= NOH)-NH2) are introduced to the surface of the material, the groups and uranyl ions (UO2 < 2 + >) can form a stable five-membered or six-membered coordination ring, uranium can still be preferentially and selectively combined in a seawater complex ion environment (for example, when high-concentration Na < + >, Mg < 2 + > and Ca < 2 + > coexist), and PAO contains plane sawtooth conformation, so that the piezoelectric material has certain piezoelectric performance, and the piezoelectric material can be applied to the field of piezoelectric materials. And the effect of adsorption-piezoelectric catalysis synergistic uranium extraction is achieved.

The utility model relates to the field of test tube cleaning, and discloses an efficient test tube cleaning device which comprises a base, the top of the base is fixedly connected with a sliding rail, the top of the sliding rail is slidably connected with a placing platform, the right side of the placing platform is provided with a plurality of evenly-distributed inserting grooves, and the left side of the top of the base is provided with a pushing and lifting assembly. A fixing assembly is arranged in the placing platform, a box body is fixedly connected to the top of the base, a partition plate is fixedly connected to the left side of the box body, a plurality of evenly-distributed through holes are formed in the partition plate, a three-way valve is fixedly connected to the right side of the box body, and an air spraying pipe is fixedly connected to the input end of the three-way valve. According to the test tube cleaning device, a lateral water spraying cleaning method is adopted, so that water in the test tube can be smoothly discharged, meanwhile, a water spraying pipeline is prevented from being blocked, and air can be blown into the cleaned test tube after the cleaning is completed, so that the water in the test tube can be quickly dried.

The pancreas drainage device for the hepatobiliary surgery comprises a bottom plate, four stand columns are fixedly connected to the upper end of the bottom plate, a top plate is fixedly connected to the upper ends of the four stand columns jointly, a connecting pipe is arranged at the upper end of the top plate, and a connecting sleeve is fixedly connected to one end of the connecting pipe; a drainage assembly is arranged on the connecting sleeve, and the other end of the connecting sleeve is fixedly connected with a liquid outlet. According to the pancreas drainage device for the hepatobiliary surgery, by starting a first motor, the output end of the first motor drives a first lead screw to rotate on the inner side of a threaded block, so that a drainage tube can conveniently slide into an inner cavity of a connecting sleeve, and the inner wall of the connecting sleeve rubs with the outer wall of the drainage tube; the blocked drainage hole can be conveniently cleaned, at the moment, the first motor is reversely started, the drainage tube can slide out of the inner cavity of the connecting sleeve again, and therefore it can be guaranteed that the drainage hole in the drainage tube is not blocked, and the drainage effect is improved.

The utility model discloses a controllable sand cleaning drill rod, include: upper joint, its upper end is female buckle, is connected with the male buckle of upper drill rod for, drill rod body is connected in the below of upper joint, lower joint is connected in the below of drill rod body, and lower end is male buckle, is connected with the female buckle of lower drill rod for, spiral convex, arrange in the outer periphery of drill rod body, water jet mechanism, including drill rod side wall water eye and nozzle, the inner port of drill rod side wall water eye is communicated with drill rod center hole, and the outer end of drill rod side wall water eye is in the spiral recessed groove face export of spiral convex, and installs the nozzle in the outer port, control mechanism is used for controlling the opening and closing of water jet mechanism. The side wall of crescent cylinder cover seals the inner port of drill rod side wall water eye. This sand cleaning drill rod can realize controllable, adjustable sand cleaning of big displacement horizontal well, and simple structure, reliable function.