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Application method of ceramic nano material for preventing ring formation in rotary cement kiln

A cement rotary kiln and nano-material technology, applied in the field of cement rotary kiln, can solve problems affecting cement kiln output, quality, energy consumption and ecological environment, and achieve the effects of preventing damage and peeling, good thermal shock performance, and improving toughness

Inactive Publication Date: 2017-05-24
ANHUI WUHU CONCH CONSTR & INSTALLATION ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Has seriously affected the output, quality, energy consumption and ecological environment of cement kilns

Method used

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Examples

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Embodiment 1

[0015] Embodiment 1, a method for using ceramic nanomaterials in anti-ringing in a cement rotary kiln, characterized in that: the ceramic nanomaterials are RSI-X-HT 700-1910 high-temperature nano-ceramic materials, and the material reduces the surface energy of the material (Non-wetting, similar to Teflon) Effectively control contamination and slagging, and can play the role of anti-skinning and anti-ringing. It is to spray RSI-X-HT 700-1910 high-temperature nano-ceramic material on two 1m-wide and 180° radially spaced belt-shaped areas along the kiln axis that are prone to ring formation, so that the area does not form kiln skin and rings , so as to destroy the arched structure of the kiln ring and prevent ring formation,

[0016] Including: checking and confirming the position of the crust and ring before construction - soaking and hydrating the surface of the part to be sprayed by nano-ceramic coating material cleaning - nano-ceramic spraying operation - maintenance, inspec...

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PUM

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Abstract

The invention relates to an application method of a ceramic nano material for preventing ring formation in a rotary cement kiln. The application method is characterized in that the ceramic nano material is an RSI-X-HT 700-1910 high temperature nano ceramic material, and the application method comprises the following concrete steps: checking and confirming positions of crust and formed rings before construction, soaking a nano ceramic coating material and hydrating, cleaning the surface of a to-be-sprayed part, carrying out nano ceramic spraying operation, maintaining, checking and accepting. The application method has the beneficial effects that the RSI-X-HT 700-1910 high temperature nano ceramic material is adopted for preheating and decomposing a transitional zone, at which ring formation and crust attachment can be easily caused, of a cement kiln, the difficult problem that the ring formation and crust attachment can be easily caused in the traditional zone cannot be solved after a preheating and decomposing kiln appears is solved, and inferior coal can be better used and garbage can be better burned without producing great influence on a kiln system, so that yield and quality of the kiln system are stable, and the application method has broad prospect and is worthy of popularization.

Description

technical field [0001] The invention relates to the field of cement rotary kilns, in particular to a method for using ceramic nanomaterials in anti-ring formation in cement rotary kilns. Background technique [0002] At present, in the precalcining kiln of the cement rotary kiln, components such as alkaline sulfate and chloride are volatilized and condensed, and the internal circulation is repeated, resulting in the enrichment of these components in the raw meal. This phenomenon is especially evident in Guiyang Conch, which is put into operation to co-process municipal solid waste and simultaneously burn inferior anthracite coal from Panjiang. According to the production practice, the R2O, SO3 and Cl of raw meal in the hottest stage preheater at the kiln tail － The content is often increased to 5 times, 3 to 5 times and 80 to 100 times that of normal raw materials. When the hot material enters the rear 1 / 3 of the kiln shell (after the section of 1000 ℃ ~ 1200 ℃), the volat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/65C04B41/87F27B7/20
CPCC04B41/65C04B41/5025C04B41/87F27B7/20
Inventor 师美高赵鹏仝超张小龙
Owner ANHUI WUHU CONCH CONSTR & INSTALLATION ENG
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