3results about How to "No leakage problem" patented technology

The utility model provides a bridge guardrail mounting, fixing and adjusting structure which solves the problems of wet joint leakage, insufficient strength and high difficulty in mounting and adjusting during mounting and construction of an existing prefabricated concrete guardrail. Comprising a bridge and prefabricated guardrail shells installed on the two sides of the bridge, reserved steel bars are arranged on the two sides of the bridge, and the reserved steel bars are inserted into cast-in-place cavities of the prefabricated guardrail shells; bolt holes are formed in the side faces, and the adjacent prefabricated guardrail shells are fixed through pull bolts. The lower edge of the front face and a bridge are fixed through angle iron connectors, and cast-in-place concrete is arranged in the cast-in-place cavity of the prefabricated guardrail shell. The cast-in-place joint is formed between the prefabricated guardrail and the original bridge through secondary cast-in-place concrete construction, the connection strength of the cast-in-place joint is basically the same as that of a cast-in-place construction process, and the problem of leakage does not exist in the lap joint face between the prefabricated guardrail and the original bridge.

The application discloses a gas pressurizing rotary drum filter, which is characterized in that a distribution head rotor is connected to a rotary drum, a distribution head is arranged outside the distribution head rotor, the rotary drum is divided into a plurality of working zones according to the rotating direction, an annular cavity between the distribution head rotor and the distribution head is divided into independent mother liquor discharge cavities, dry gas discharge cavities and washing liquid discharge cavities according to the working function zones of the rotary drum along the circumferential direction, filtered mother liquor in the filtering zone, washed washing liquid in the washing zone and dried water-containing gas in the drying zone are respectively introduced into corresponding zones of the annular cavity through connecting pipes in the respective zones, and finally discharged through the mother liquor discharge outlets, the washing liquid discharge outlets and the dry gas discharge outlets on the distribution head; unloading back-blowing gas and filter cloth backwashing liquid with certain pressure are respectively introduced into the connecting pipes through back-blowing gas inlets and washing liquid inlets on the distribution head, and then introduced into the rotary drum, so as to realize unloading by blowing gas to the filter cake and backwashing to the filter cloth, and thus high-efficiency separation of the mother liquor and the washing liquid is realized.

The utility model relates to centrifugal device technical field, and disclose a kind of hirsutae extraction liquid centrifugal device, including device ontology, the inside rotation of device ontology is equipped with shaft, the top fixed mounting of shaft has limit block, the outside of limit block is inserted with rotor, the inside fixed mounting of limit block has two spring one, the end of two the spring one away from limit block is all fixedly installed with fixed block, by inwardly pinching two fixed blocks and making it shrink to limit block inside, immediately pull up handle and drive rotor to separate from limit block outside, can be extracted to replace, install new rotor in limit block outside and continue to use, and the rotor removed is placed in the outside desktop with extraction liquid and is placed for long time stationary, so that upper liquid and lower liquid separate more thoroughly, by spring two drive locating column and be inserted in the inside of fixed ring and be positioned, so that centrifuge tube and sealing cap complete positioning and tighten.