Control device for construction of arch-shaped masonry on top of hot blast heater and construction method

Abstract

The invention relates to a control device for construction of an arch-shaped masonry on the top of a hot blast heater and a construction method. The control device comprises a brick radian control device and a masonry division plate indexing device, wherein the brick radian control device comprises a central shaft and a radian sample plate which is fixedly mounted on one side of the central shaft; brick layer lines are marked on the radian sample plate; a laser pen is mounted on the radian sample plate; a laser beam is parallel to the brick layer lines; the masonry division plate indexing device comprises a rotation platform; the rotation platform comprises a base and a rotating platform; the rotating platform is rotatably mounted above the base; a plurality of I-shaped marking instruments are uniformly mounted on the rotating platform in the circumferential direction; the base is connected with the central shaft by a first bearing; and the rotating platform rotates around the central shaft. In a construction process of the arch-shaped masonry on the top of the hot blast heater, brick radian and masonry division plate indexing marks can be controlled simultaneously, and the horizontal radius and height size of the masonry, deviation detection on height-direction radian of an arc-shaped section masonry and annular segmented detection of an arch-shaped masonry division plate do not interfere.

Description

technical field [0001] The invention relates to the technical field of kiln construction, in particular to a control device and a construction method for building an arched masonry on the roof of a hot blast stove. Background technique [0002] The arched masonry on the roof of the hot blast stove gradually shrinks like a hemispherical roof structure, and in order to avoid damage to the hemispherical roof caused by thermal expansion, multiple expansion joints are evenly arranged at the arch foot of the arched masonry to separate the arched masonry into Multiple masonry panels, for example, 30 panels at the bottom, 15 panels at the middle, and a spherical whole at the top, and the three-section structure is separated by joint bricks. [0003] During construction, in order to check the horizontal radius and height of the masonry layer by layer, and to control the deviation of the height gradient of the masonry in the arc section, a rotatable arc plate is installed at the cente...

AI Technical Summary

Problems solved by technology

However, for the masonry indexing of the arched masonry partition plate on the furnace roof, it is impossible to use the measuring instrument station to set out the line. It is necessary to use the central axis as the origin as the basis for radius detection, and then use the arc length segmented method to delineate the distribution line of the plate. On the brick layer of the next ring, and the ellipticity error of this ring brick layer is relatively large, resulting in a large error in the distribution line of the plate, resulting in uneven mortar joints, which directly affects the masonry quality of the entire hot blast stove

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