Pressure-balancing flow-balancing honeycomb checker brick

Abstract

The invention relates to a pressure-balancing flow-balancing honeycomb checker brick, which can effectively solve the problems of low through hole rate, strong intense pulse generation, nonuniform air volume, and short service life; the checker brick comprises a brick body and through holes; the brick body is a regular hexagonal cylinder; the through holes are uniformly distributed on the brick body; the axis of the through holes is vertical to the cross section of the brick body; the upper ends are smaller than the lower ends of the through holes; and thus conic through holes of the checker brick are formed; an upper end surface annular groove is disposed outside the periphery of a central hole on the upper end surface of the brick body, adopts the central hole as a center, and is bendedas an arc; the upper end surface annular groove is communicated with an intersectant conic through hole; three bosses are uniformly distributed on the lower end surface of the brick body; round grooves with the central hole as a center are disposed among the three bosses; the conic through holes are communicated with the round grooves; conic grooves which occupy half of the through hole cross sections are uniformly distributed on each side surface of the brick body; the invention has a lot of gas channels, and good using effect; balanced exchange of gas flow is realized vertically and horizontally; deformation or displacement is not easy to occur, and the service life of the regenerative chamber checker brick is prolonged.

Description

technical field [0001] The invention relates to a metallurgical refractory brick, in particular to a pressure-equalizing and flow-equalizing honeycomb lattice brick used in a hot blast stove of a metallurgical blast furnace. technical background [0002] Generally, the main function of checker bricks used in hot blast stoves of metallurgical blast furnaces is to exchange heat. It usually has 7 holes, 19 holes, and 37 holes. In use, the bricks and brick holes are vertically built to form gas channels. To achieve heat exchange, due to structural problems, the shortcomings of this kind of bricks are: (1) Due to the taper and error formed by the product aperture in the production process and the masonry, the vertical channel error of the layered bricks caused the entire hot stove The through-hole ratio is only 60% to 85%, which will cause excessive resistance during the heating process and air supply process, increase the power of the fan, and generate strong pulse vibrations. (...

AI Technical Summary

Problems solved by technology

[0003] In view of the above situation, in order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a honeycomb lattice br

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