Fuel for high temperature sintering and expanding of haydite rotary kiln

Abstract

The invention discloses a fuel for high temperature inflation burning in a porcelain granule rotary kiln, which is dry sawdust or rice husk. The invention uses the dry sawdust or the rice husk as the fuel for the high temperature inflation burning in the porcelain granule rotary kiln, and has the following advantages: on the one hand, when the sawdust or the rice husk is burnt, sulfides which are harmful to human body are not generated, air pollution is less, thus the sawdust or the rice husk is more environment-friendly; and on the other hand, the sawdust is foam sawdust of trees scattered down from the trees because of cutting during wood processing, the rice husk is a material separated in rice processing, the sawdust and the rice husk are rich in source and have very low material cost; in addition, the sawdust and the rice husk are products obtained directly in the wood processing and the rice processing by people, the rice husk is generally dry and can be used directly through simple processing, while partial 40 to 50 meshes of the sawdust is screened out and is processed (air-dried) simply. The processing cost can be negligible, and compared with pulverized coal, the comprehensive cost of the sawdust or the rice husk is only one-third of that of the pulverized coal.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a fuel for high-temperature expansion and combustion of a ceramsite rotary kiln. Background technique [0002] In recent years, my country's wall reform policy has been deepened and its implementation has been gradually strengthened, thus creating a huge market space for the development of new building materials. As a basic building material, ceramsite has received great attention due to its light weight, heat preservation, waste utilization, and environmental protection. The lightweight aggregate concrete hollow blocks, beams, and slabs made of it as a raw material have become the leading products for the development of new wall materials in my country to replace clay solid bricks. [0003] When producing ceramsite, the raw materials are mixed and stirred first, and then the mixed raw materials are granulated to form granules; then the granules are sent to the rotary kiln for ...

AI Technical Summary

Problems solved by technology

In the existing production of ceramsite, the fuel used in the high-temperature expansion zone is coal powder. On the one hand, when the coal powder is burned, it will produce sulfides that are harmful to the human body and cause serious air pollution; on the other hand, in the increasingly tense energy environment Under such circumstances, the material cost of coal continues to increase, and the pulverized coal needs to be ground by a coal mill to a fineness of 130-120 mesh, and the cost of coal processing is also high, resulting in a high overall cost of pulverized coal