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Preparation method of enamel plate for flue of thermal power plant

A technology for thermal power plants and enamel plates, which is applied in the field of preparation of enamel plates for flues in thermal power plants, can solve problems such as easy corrosion, easy wear, easy softening, etc., and achieves low cost, low heat exchange efficiency, waterproof and impermeability. powerful effect

Active Publication Date: 2016-09-21
ZHEJIANG KAIER NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention mainly aims at the defect that the current enamel-coated steel plate is easy to corrode, easy to wear, and easy to soften on the inner wall of the chimney of the thermal power plant equipped with the flue gas wet desulfurization and dust removal treatment, and invents a preparation of an enamel plate for the flue of the thermal power plant The method adopts a new type of enamel glaze with excellent corrosion resistance, wear resistance, and thermal shock resistance, and combined with an improved preparation process, the enamel surface has excellent properties such as smoothness, wear resistance, heat shock resistance, and strong waterproof and impermeability.

Method used

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  • Preparation method of enamel plate for flue of thermal power plant
  • Preparation method of enamel plate for flue of thermal power plant
  • Preparation method of enamel plate for flue of thermal power plant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A preparation method for an enamel plate for a flue of a thermal power plant, comprising the following steps:

[0043] (1) Preparation of enamel glaze:

[0044] a. Mix raw materials: Mix the raw materials for preparing enamel glaze in solvent water evenly; the raw materials for preparing enamel glaze are composed of the following compounds in parts by mass: 100 parts of glaze, 30 parts of quartz, and 1 part of borax , 1 part of barium nitrate, 7 parts of clay, 0.5 parts of sodium nitrite, and 45 parts of water; wherein, the glaze consists of the following compounds in mass percentage:

[0045]

[0046]

[0047] b. Melting: Put the uniformly mixed above-mentioned raw materials into a crucible, and melt at 1200°C for 3 hours;

[0048] c. Chilling: Put the above-mentioned melted raw materials into water and cool them down to room temperature quickly. After the raw materials cooled to room temperature are taken out, they are dried at 100°C for 4 minutes to solidify t...

Embodiment 2

[0054] A preparation method for an enamel plate for a flue of a thermal power plant, comprising the following steps:

[0055] (1) Preparation of enamel glaze:

[0056] a. Mix raw materials: Mix the raw materials for preparing enamel glaze in solvent water evenly; the raw materials for preparing enamel glaze are composed of the following compounds in parts by mass: 100 parts of glaze, 30 parts of quartz, and 1 part of borax , 1 part of barium nitrate, 7 parts of clay, 0.5 parts of sodium nitrite, and 45 parts of water; wherein, the glaze consists of the following compounds in mass percentage:

[0057]

[0058] b. Melting: Put the uniformly mixed above-mentioned raw materials into a crucible, and melt at 1200°C for 3 hours;

[0059] c. Chilling: Put the above-mentioned melted raw materials into water and cool them down to room temperature quickly. After the raw materials cooled to room temperature are taken out, they are dried at 100°C for 4 minutes to solidify to obtain blo...

Embodiment 3

[0065] A preparation method for an enamel plate for a flue of a thermal power plant, comprising the following steps:

[0066] (1) Preparation of enamel glaze:

[0067] a. Mix raw materials: Mix the raw materials for preparing enamel glaze in solvent water evenly; the raw materials for preparing enamel glaze are composed of the following compounds in parts by mass: 100 parts of glaze, 30 parts of quartz, and 1 part of borax , 1 part of barium nitrate, 7 parts of clay, 0.5 parts of sodium nitrite, and 45 parts of water; wherein, the glaze consists of the following compounds in mass percentage:

[0068]

[0069] b. Melting: Put the uniformly mixed above-mentioned raw materials into a crucible, and melt at 1400°C for 1 hour;

[0070] c. Quenching: Put the above-mentioned melted raw materials into water and cool them down to room temperature quickly. After the raw materials cooled to room temperature are taken out, they are dried at 120°C for 2in and solidified to obtain blocky...

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Abstract

The invention relates to a preparation method of an enamel plate for a flue of a thermal power plant. The enamel plate prepared through the method has excellent chemical durability, corrosion resistance and thermal stability and is suitable for the inner wall, where a smoke wet desulphurization and dedusting treatment device is installed, of the flue the thermal power plant. The preparation method specifically comprises the following steps that enamel glaze is prepared, specifically, a, raw materials are mixed, the raw materials for preparing the enamel glaze are evenly mixed in solvent water, and the raw materials of the enamel glaze include glaze, quartz, borax, barium nitrate, clay and sodium nitrite; b, melting is conducted, the raw materials which are evenly mixed are placed in a crucible and melted for 1-3 hours at the temperature of 1200-1400 DEG C; c, chilling is conducted, the melted raw materials are placed in water and rapidly cooled to the room temperature and then fished out to be dried, and the raw materials are solidified, so that blocky frit is obtained; and d, ball milling is conducted, the frit, clay and water are added into a ball mill to be ground till the mixture can pass through a sieve with 40-80 meshes, and glaze slip is prepared.

Description

technical field [0001] The invention relates to an enamel plate technology, especially a method for preparing an enamel plate for a flue of a thermal power plant, a preparation method and a production process of a new type of glaze, and the prepared enamel plate has excellent chemical durability and corrosion resistance It is suitable for the inner wall of the flue (chimney) of the thermal power plant equipped with the flue gas wet desulfurization and dust removal treatment. Background technique [0002] In the past, when thermal power plants did not use desulfurization, the chimney exhaust smoke was often in a high temperature state above 200°C, and the wall of the chimney was not easy to condense, and condensed acid was rarely formed, so the corrosion was relatively light. However, flue gas desulfurization treatment is now required, and this wet desulfurization treatment does not have a chimney for the flue gas heating system, so the flue gas formed has high moisture conte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23D5/02C03C8/14C03C8/08
CPCC03C8/08C03C8/14C03C2207/04C23D5/02
Inventor 邢翰学曹益亭江峰王永方淑玲黄新亮
Owner ZHEJIANG KAIER NEW MATERIALS
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