5results about How to "Implement preliminary filtering" patented technology

The utility model relates to the technical field of radish irrigation devices, in particular to an energy-saving irrigation device for radish planting, which comprises a storage box, a water inlet pipe is fixedly mounted at the top of a front side plate of the storage box, a threaded pipe is mounted at the water outlet end of the water inlet pipe, and a threaded sleeve is in threaded connection with the threaded pipe. A filter mesh bag is fixedly mounted at the bottom end of the threaded sleeve; a conveying pump is arranged outside the storage box, a conveying pipe is fixedly installed at the water outlet end of the conveying pump, a plurality of evenly-distributed pipes are detachably connected to the conveying pipe, a plurality of water dripping holes are formed in the evenly-distributed pipes, a hard pipe is fixedly installed at the water inlet end of the conveying pump, and the tail end of the hard pipe penetrates into the storage box and is fixedly provided with a hose. A threaded connector is fixedly installed at the tail end of the hose, a mesh cylinder is detachably connected to the end of the threaded connector, a filter screen is arranged on the outer surface of the mesh cylinder, and a hollow floating plate is fixedly installed on the top face of the mesh cylinder. The drip irrigation device is convenient for drip irrigation operation and has a better impurity filtering effect.

The utility model discloses a blast furnace slag flushing water waste heat recovery heat pump, including support baseplate, the upper surface fixed mounting of support baseplate has heat pump machine, the upper surface fixed mounting of support baseplate has intercepting box, the upper surface fixed connection of support baseplate has fixed block, the upper surface fixed connection of fixed block has filter assembly, the inside of intercepting box is provided with intercepting grid, filter assembly includes filter cartridge, the inner ring screw thread connection of filter cartridge has screw cap, the inner wall screw thread connection of screw cap has quartz sand filter screen, one end of screw cap is fixedly connected with the connector, the top of support baseplate is equipped with precision filter, one end of precision filter is fixedly connected with the communicating pipe. The device passes through the pretreatment filter structure, guarantees the stable operation of heat pump machine, makes it can continuously efficiently promote the heat of the slag flushing water to higher temperature, satisfies the heat utilization demand, improves the waste heat recovery efficiency.

The utility model discloses a household garbage recycling device which comprises a supporting frame, a processing part is installed on the top of the supporting frame, and the processing part comprises a conveying part, a garbage collecting part and a garbage collecting part, the auger is arranged on the inner side of the conveying part and used for guiding the household garbage; the storage box is arranged on the upper side of the supporting frame and used for receiving filtered sewage in the conveying part; and the adjusting part is installed on the upper side of the supporting frame and used for conducting water squeezing forming treatment on the household garbage, and the adjusting part comprises a shell installed on the right side of the bottom of the conveying part. According to the household garbage recycling device, the air cylinder assembly adjusts the horizontal position of the second filter plate so that the second filter plate can be contained in the frame, the shell scrapes the upper surface of the second filter plate, attached excess materials can be promoted to fall off, two sets of pressing plates can be reset, formed garbage can fall into the recycling box, and a water pump, a three-way valve, a water passing pipe, a water spraying plate, a branch pipe and a water spraying ring are matched with one another; the dredging of the second filter plate is realized.

The present application discloses a gas-tight sampling device, which belongs to the field of gas sampling technology, and includes a sampling joint, a sleeve, a sampling bottle, an operating rod, a connecting structure, a blocking plate, a reinforcement structure, an opening and closing structure, and a triggering structure. The opening end of the sleeve is detachably connected to the sampling joint through a connecting structure, the blocking plate is used to block the sampling joint, and the reinforcement structure is used to fix the blocking plate and the sampling joint; the sampling bottle has a coaxially arranged annular partition, and an annular piston body slides in the piston cavity; the operating rod is used to release the fixing of the blocking plate by the reinforcement structure through the opening and closing structure, and the operating rod is used to drive each piston body to slide in turn through the triggering structure. The present application can realize sampling of the sampling bottle directly in the production environment, while taking into account the airtightness of the production environment before and after sampling, thereby improving the accuracy of sampling detection.

The utility model discloses an oil screen dust filter with a good dust filtering effect, which belongs to the field of oil screen dust filters and comprises an oil screen dust filter shell, an oil screen component is fixedly mounted in the oil screen dust filter shell, and a large-particle dust deceleration blocking component is fixedly mounted in the oil screen dust filter shell and on the front side of the oil screen component. The large-particle dust deceleration blocking assembly is arranged on the front side of the oil screen assembly and can block large-particle dust in air, so that the large-particle dust is decelerated, and then the large-particle dust falls under the influence of gravity after impacting the large-particle dust deceleration blocking assembly; and finally, dust in the air can be preliminarily filtered, and meanwhile, dust falling on the oil screen assembly can be reduced, so that the oil screen assembly can keep a relatively good dust filtering effect for a long time, and finally, the dust filtering effect of the oil screen dust filter can be relatively good through the cooperation of the large-particle dust deceleration blocking assembly and the oil screen assembly.