Production process of monolithic refractories and lining bricks for zinc oxide rotary kiln

Abstract

The invention discloses an unshaped refractory material for a zinc oxide rotary kiln and a production technology for lining bricks, and belongs to the technical field of refractory material production. The lining bricks with the good energy saving effect are prepared by taking magnesium aluminate spinel, high-quality high-aluminum bauxite and fused magnesite as main raw materials and adding a certain quantity of a binding agent, a water reducing agent and an antiknock agent. Compared with a traditional fired product, the unshaped refractory material has the advantages that the procedures are simple, the production processes such as green brick pressing and high-temperature firing are omitted, a large quantity of energy consumption can be reduced in the production and manufacture process, and a large quantity of manpower and material resources can be saved in the production and manufacture process. In the construction process, anchoring parts can be welded to a kiln body, the integrality of the refractory material is enhanced, and the conditions of lotting and brick falling of a shaped product are prevented from occurring; for the portion, difficult to construct, of the shaped product, bed supporting pouring construction can be performed through the unshaped refractory material.

Description

technical field [0001] The invention belongs to the production technical field of refractory materials, and in particular relates to an unshaped refractory material for a zinc oxide rotary kiln and a brick-making process thereof. Background technique [0002] With the implementation of national energy-saving emission reduction and green environmental protection policies, energy-saving refractory materials are increasingly valued by refractory companies, and the technological development of refractory materials is gradually transitioning from traditional fired shaped products to unshaped refractory materials. Unshaped refractory materials replace shaped fired products, which is the general trend and represents the direction of refractory research and development. [0003] In Japan and Europe, unshaped refractory materials account for more than 70% of the total refractory materials; in China, unshaped refractory materials account for less than 50% of the total refractory mater...

AI Technical Summary

Problems solved by technology

[0004] In China, the selection of zinc oxide rotary kiln refractory materials is mainly for firing high-aluminum products and aluminum-magnesium-chromium corundum products. In the production process, there are high energy consumption and excessive heat loss.

For zinc oxide production enterprises, traditional firing products are used, and the technology is relatively mature, but it consumes a lot of energy, which increases the production cost of zinc oxide and is not conducive to market competition.

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