Fire-resistant liner for warm air pipeline and paving method thereof

A technology of hot air duct and refractory lining, which is applied in lighting and heating equipment, lining repair, lining support, etc. It can solve the problems of inability to play a supporting role, many spare parts for maintenance, and easy oxidation, so as to improve the efficiency of spraying construction, Effect of reducing working time and prolonging service life
CN102829634AInactive Publication Date: 2012-12-19ANSTEEL GRP MINING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ANSTEEL GRP MINING CO LTD
Publication Date
2012-12-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of fire-resistant material spraying and especially relates to a fire-resistant liner for a warm air pipeline and a paving method thereof. The fire-resistant liner comprises the warm air pipeline and is characterized by comprising a set of anchoring nails, a fire-resistant fiber felt and a spraying coating layer, wherein the anchoring nails are welded with an inner wall of the warm air pipeline; the fire-resistant fiber felt penetrates through the anchoring nails and is grafted with the inner wall of the warm air pipeline; and the spraying coating layer is sprayed and coated on the surface of the fire-resistant fiber felt. The structures, such as a fire-resistant stainless steel network and a quick clamping sheet, for fixing the fire-resistant fiber felt and the spraying coating layer during the paving process of the original fire-resistant liner for the warm air pipeline are omitted by the fire-resistant liner provided by the invention; the anchoring nails are used for fixing the fire-resistant fiber felt and the spraying coating; and under the condition of maintaining each performance index of the original fire-resistant liner, the spraying coating construction efficiency of the warm air pipeline is increased, the operation time is reduced and the service life of the warm air pipeline is prolonged.
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Description

technical field

[0001] The invention belongs to the technical field of laying refractory materials, and in particular relates to a refractory inner lining of a hot air duct and a laying method thereof. Background technique

[0002] Generally, the inner wall of the hot air pipeline of the grate rotary kiln pellet production system is equipped with refractory materials. The refractory materials of the pipeline are sprayed coating, refractory white steel mesh, refractory fiber felt, and the outer wall of the pipeline, among which the refractory fiber felt and sprayed layer They are all fixed by the support of refractory white steel mesh, and the refractory white steel mesh is fixed by more complex structures such as fast cards. The refractory white steel mesh of the original structure has a thin cross-section, which is easily oxidized at high temperature and cannot provide long-term and effective support, resulting in a low service life of the hot air duct. The above-mentioned...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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