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Pot wall brick for petroleum coke pot type calcining furnace, preparation method of pot wall brick and application of pot wall brick

A tank-type calciner and tank wall brick technology, which is applied in the field of tank wall bricks for petroleum coke tank-type calciner and its preparation, can solve problems such as poor thermal stability, achieve high thermal stability, good acid corrosion resistance, and save energy. The effect of production time

Inactive Publication Date: 2018-12-21
SINOWAY CARBON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But traditional silica bricks have poor thermal stability at low temperatures

Method used

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  • Pot wall brick for petroleum coke pot type calcining furnace, preparation method of pot wall brick and application of pot wall brick
  • Pot wall brick for petroleum coke pot type calcining furnace, preparation method of pot wall brick and application of pot wall brick

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1 A tank wall brick for a petroleum coke tank calciner

[0038] The tank wall brick includes the following raw material components in parts by weight: 70 parts of silicon carbide powder, 16 parts of calamine, 4 parts of laterite, 10 parts of silicon nitride, 3.8 parts of kaolin, 5.5 parts of far-infrared ceramic powder, Antimony oxide fine powder 0.24 part.

[0039] The silicon carbide powder: the particle size is 600 μm, and the bulk density is 3.28g / cm 3 , SiC content is 98.8%, ferric oxide content is 0.3%;

[0040] The calamine: the fineness is 200 meshes, containing 0.24% of calcium oxide (CaO), 0.45% of magnesium oxide (MgO), 0.56% of iron oxide (Fe2O3), and 0.008% of manganese oxide (MnO);

[0041] The red clay mentioned above: is red clay, the place of origin is Hebei, purchased from Lingshou County Zhongrun Petroleum Auxiliary Processing Factory, item number 010;

[0042] Said silicon nitride: silicon content ≥ 99.9%, density 3.48 g / cm³, Mohs hardness...

Embodiment 2

[0046] Example 2 A tank wall brick for a petroleum coke tank calciner

[0047] The tank wall brick includes the following raw material components in parts by weight: 80 parts of silicon carbide powder, 15 parts of calamine, 4.8 parts of laterite, 12 parts of silicon nitride, 3.5 parts of kaolin, 4 parts of far-infrared ceramic powder, Antimony oxide micropowder 0.20 parts.

[0048] The silicon carbide powder: the particle size is 600 μm, and the bulk density is 3.28g / cm 3 , SiC content is 98.8%, ferric oxide content is 0.3%;

[0049] The calamine: the fineness is 200 mesh, which contains 0.24% of calcium oxide (CaO), 0.45% of magnesium oxide (MgO), 0.56% of iron oxide (Fe2O3), and 0.008% of manganese oxide (MnO);

[0050] The red clay mentioned above: is red clay, the place of origin is Hebei, purchased from Lingshou County Zhongrun Petroleum Auxiliary Processing Factory, item number 010;

[0051] Said silicon nitride: silicon content ≥ 99.9%, density 3.48 g / cm³, Mohs hardn...

Embodiment 3

[0055] Example 3 A tank wall brick for petroleum coke tank calciner

[0056] The tank wall brick includes the following raw material components in parts by weight: 85 parts of silicon carbide powder, 14 parts of calamine, 5.5 parts of laterite, 13 parts of silicon nitride, 3.4 parts of kaolin, 4.9 parts of far-infrared ceramic powder, 0.26 parts of antimony oxide micropowder.

[0057] The silicon carbide powder: the particle size is 600 μm, and the bulk density is 3.28g / cm 3 , SiC content is 98.8%, ferric oxide content is 0.3%;

[0058] The calamine: the fineness is 200 meshes, containing 0.24% of calcium oxide (CaO), 0.45% of magnesium oxide (MgO), 0.56% of iron oxide (Fe2O3), and 0.008% of manganese oxide (MnO);

[0059] The red clay mentioned above: is red clay, the place of origin is Hebei, purchased from Lingshou County Zhongrun Petroleum Auxiliary Processing Factory, item number 010;

[0060] Said silicon nitride: silicon content ≥ 99.9%, density 3.48 g / cm³, Mohs hard...

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Abstract

The invention provides a pot wall brick for a petroleum coke pot type calcining furnace, a preparation method of the pot wall brick and an application of the pot wall brick. The pot wall brick is prepared from the following raw material ingredients: silicon carbide powder, calamine, red clay and kaolin which are in the mass ratio of (70 to 85): (13 to 16): (4 to 5.5): (3.4 to 3.8). The pot wall brick further comprises the following raw material ingredients: silicon nitride, far-infrared ceramic powder and antimony oxide micropowder. The pot wall brick for the petroleum coke pot type calciningfurnace, provided by the invention, the thermal stability at low temperatures is high.

Description

technical field [0001] The invention relates to a tank wall brick for a petroleum coke calcination furnace, in particular to a tank wall brick for a petroleum coke tank type calcination furnace and a preparation method and application thereof. Background technique [0002] Tank calciner is a type of furnace widely used in the carbon industry. During calcination, the raw materials are fed into the tank by the charging device on the top of the furnace, and are gradually heated by the fire channels located on both sides of the material tank during the movement from top to bottom. The heat generated by the combustion of fuel in the flue is indirectly transferred to the raw material through the wall of the flue. When the temperature of the raw material reaches 350~600°C, a large amount of volatile matter is released. It is collected through volatile channels and sent to the fire channel for combustion. Combustion of volatiles is another source of heat for pot calciners. The r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/565C04B35/622
CPCC04B35/565C04B35/622C04B35/66C04B2235/3284C04B2235/3294C04B2235/349C04B2235/3873C04B2235/5427
Inventor 刘涛王利民
Owner SINOWAY CARBON
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