34results about How to "Raise the elevation" patented technology

A sprinkler stand for holding an oscillating sprinkler in an elevated and generally vertical orientation to provide a desired sprinkler coverage pattern, wherein a sprinkler holder holds a sprinkler, a frame elevates and supports the sprinkler holder, and a base supports the frame. Preferably, the sprinkler holder includes two tracks for engaging base members of a sprinkler, wherein the tracks allow for the repositioning of the sprinkler so as to vary the sprinkler elevation, the height of the sprinkler holder is adjustable by moving the holder along the frame, or by adding a frame extender to the frame, and the sprinkler holder may be rotated, or the frame rotatably or angularly adjusted to achieve a desired sprinkler orientation.

A sprinkler stand for holding an oscillating sprinkler in an elevated and generally vertical orientation to provide a desired sprinkler coverage pattern, wherein a sprinkler holder holds a sprinkler, a frame elevates and supports the sprinkler holder, and a base supports the frame. Preferably, the sprinkler holder includes two tracks for engaging base members of a sprinkler, wherein the tracks allow for the repositioning of the sprinkler so as to vary the sprinkler elevation, the height of the sprinkler holder is adjustable by moving the holder along the frame, or by adding a frame extender to the frame, and the sprinkler holder may be rotated, or the frame rotatably or angularly adjusted to achieve a desired sprinkler orientation.

The invention discloses a construction method of a bearing platform for heating pipe channels to stride a reserved subway station. The bearing platform comprises a platform plate and stand columns which support the platform plate; the bearing platform supports lower portions of heating pipes; guard piles and a waterproof curtain surround the periphery of the bearing platform; the height of the platform plate of the bearing platform coincides with that of a top mark of the reserved subway station; the stand columns which are steel structured lattice columns comprise portions which are reserved above a bottom line of a foundation ditch of the reserved subway station and portions which are reserved under the bottom line of the foundation ditch of the reserved subway station; the stand column portions which are reserved under the bottom line of the foundation ditch of the reserved subway station are inserted in reinforcement cages inside the piles and are combined into a whole through concrete pouring. The bearing platform is simple in structure and convenient to construct and enables later subway station construction to be normally operated under the platform due to the fact that the bearing platform is arranged under the heating pipes and the construction is not influenced by the front constructed heating pipes, does not influence safe quality of the heating pipes and provides favorable reference for similar intersection problem of underground engineering.

The invention discloses a box-shaped roof structure for an urban tunnel bifurcation. There are three empty chambers in the middle of the roof body, an upper reinforcement device and a lower reinforcement device are fixedly connected between the three empty chambers, and pouring holes are opened in the left and right parts of the roof body. The box-shaped roof structure of a city tunnel bifurcation according to the present invention is guided by the guide column installed on the upper side beam and the guide hole opened on the lower side beam, so that the upper roof and the lower roof can be quickly connected. Alignment, thereby speeding up the construction speed; several empty chambers can reduce the weight of the roof structure, making the roof more economical, and the reinforcement ribs can strengthen the load capacity of the roof body, thereby improving the bearing capacity of the structural roof; in addition, the waterproof layer can improve Durability of the roof.

The invention discloses a constructing method for a continuous bearing layer of a super long socketed pile in a bead-like karst area. The constructing method comprises the following steps that S1, thedesign elevation of each pile is optimized and determined through detailed exploration of one pile with multiple holes; S2, a plurality of vertical steel pipes is evenly pre-embedded on each pile body along the pile circumference; S3, the bottom of each pile is subjected to core-taking and additional exploration by using steel pipe passages, and whether soft layers are at the bottom of each pileor not and the specific distribution of the soft layers are determined combined with the detailed exploration; S4, cutting, broaching and cleaning of the soft layers are completed in the force bearingrange of the bottoms of the piles; S5, the soft layers in the force bearing range of the bottoms of the piles are replaced; S6, orifice slurry supplying is performed; and S7, orifice shut-off pressure grouting is performed. By the thought and method that the continuous bearing layer is actively introduced and constructed at the bottoms of the piles in the design process, the selection range of the elevation of the bearing layer of the pile ends is expanded, the design is effectively optimized, and the designed pile length is shortened; and through the integrated process such as high pressurecutting, cleaning and double fluid grouting, the continuous bearing layer is formed, and the potential quality safety hazards of the socketed pile bottom are actively eliminated.

The invention provides a method for preventing a slab from sliding at the inlet of a fixed width machine and relates to the technical field of hot rolling. The method comprises the steps of measuring the elevation values of an inlet roll way and an inlet lower pinch roll of the fixed width machine under the condition of the same base point to obtain an elevation difference; when the elevation value of the inlet lower pinch roll is smaller than that of the inlet roll way of the fixed width machine, selecting and mounting a gasket with the preset thickness under a bearing block of the inlet lower pinch roll according to the elevation difference, and re-measuring the elevation value; when the difference between the elevation values is smaller than the target preset elevation value, reselecting the gasket with the different preset thickness. The elevation value of the inlet lower pinch roll is improved, so after a kowtow slab enters the inlet lower pinch roll of the fixed width machine, even if the kowtow position is lapped on an inlet lower guide roll of the fixed width machine and a rear slab is raised, the inlet lower pinch roll of the fixed width machine can be kept contacted with the slab, so the kowtow slab can be effectively prevented from skidding at the inlet lower pinch roll of the fixed width machine.

The invention provides an oil extraction and slag removal method and system for a vertical tar-ammonia water separating process. The system comprises a mechanical slag scrapping tank, a tar-ammonia water separating tank used for receiving a mixture of tar, ammonia water and small-granule tar slag obtained in primary separation, a tar slag pump used for extracting the small-granule tar slag and the tar at the bottom of the tar-ammonia water separating tank, a secondary slag removal apparatus used for receiving the small-granule tar slag and the tar extracted from the bottom of the tar-ammonia water separating tank through the tar slag pump and carrying out secondary separation on the small-granule tar slag and the tar, a tar slag bucket used for receiving large granule tar slag obtained in primary separation and small-granule tar slag obtained in secondary separation and a tar intermediate tank used for receiving tar discharged from the secondary slag removal apparatus and having undergone secondary separation. The system has the advantages of convenience in extraction of the tar, good tar slag removal effects and capacity of thorough discharge of the small-granule tar slag from the system, so blockage of the system is avoided and production of the system is continuous and stable.