Hollow glazed acid-proof brick and preparation method thereof

A technology for acid-resistant bricks and cavities, applied in clay preparation devices, chemical instruments and methods, manufacturing tools, etc., can solve problems such as low yield and complicated process, achieve low water absorption, improve anti-seepage performance, and light weight Effect

Inactive Publication Date: 2007-04-25
张加江
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  • Abstract
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Problems solved by technology

Complex process and low yield

Method used

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  • Hollow glazed acid-proof brick and preparation method thereof

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Embodiment Construction

[0016] The technical characteristics of the present invention will be further described below in conjunction with the accompanying drawings through the preferred embodiments.

[0017] See attached drawings 1-2 for details, a cavity glazed acid-resistant brick and its preparation method, comprising a brick body 7 with a glazed surface 2 on the outer surface and more than one cavity inside, the feature is: the inside of the brick body The cavity is a one-time molded cavity 1, and the cavity is provided with an exhaust hole 3.

[0018] The preparation method of the cavity glazed acid-resistant brick is:

[0019] 1. Mud making: choose acid-resistant clay, acid-resistant china clay or their mixture, and use ceramic technology to make mud;

[0020] 2. One-time forming blank: put the mud into the mold and use a press to press the one-time forming cavity brick.

[0021] (1) Outer mold 4: the inner wall of the outer mold has the same shape as the adobe to be formed, and a column pin ...

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Abstract

The invention belongs to anticorrosive material for chimney buildings, especially relating to a cavum glaze anti-acid brick and the production method, comprising brick body with one cavum at least in it and glaze on the outside face. Said cavum is formed at one time and exhaust hole is set on the cavum. The production method is that making mud, making block at one forming, drying by wind, glaze, sintering in furnace. The invention is suitable for flue lining after gas desulfuration in thermal power plant and is provided with high compactness, low water absorbing (<=7%) and good anti-acid performance. It is not only light weight (volume weight: 1500-1800Kg / cm) but also can conquer small masonry face of hollow brick. The masonry face with brick is enlarged and grout plumpness in masonry is more than 90%. Building quality is guaranteed.

Description

technical field [0001] The invention belongs to anticorrosion materials for chimney construction, in particular to a cavity glazed acid-resistant brick suitable for chimney inner lining and a preparation method. Background technique [0002] In order to solve the deteriorating natural environment problems. The State Environmental Protection Administration has reaffirmed the environmental regulations to strictly control sulfur dioxide emissions. At present, thermal power plants generally use wet flue gas desulfurization in order to meet the standards. The flue gas after desulfurization treatment has high moisture content, high humidity and low temperature, which is prone to condensation in the flue gas, and the flue gas contains a large amount of strong corrosive substances such as hydrogen fluoride and chloride. Therefore, the chimney of the power plant is required to have good corrosion resistance and impermeability. Generally, there are two types of anti-corrosion and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04F17/02E04C1/41B28C1/00B28B3/00B28B11/24
Inventor 张加江
Owner 张加江
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