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Novel graphite refractory material plate and production process

A refractory material and production process technology, applied in the field of new graphite refractory board and production process, can solve the problems of short service life of refractory materials, poor thermal shock resistance, cracking, peeling, etc., achieve high cracking resistance and reduce heat Dissipation and low operational difficulty

Active Publication Date: 2020-08-14
山东华达新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many kinds of common graphite refractory materials on the market, but there are still poor mechanical toughness and poor thermal shock resistance, and it is easy to crack and peel off under the action of thermal expansion and contraction, resulting in short service life of refractory materials, resulting in waste

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  • Novel graphite refractory material plate and production process

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Effect test

Embodiment 1

[0050] This embodiment discloses a novel graphite refractory plate and its production process, specifically as follows:

[0051] A new type of graphite refractory board, the refractory board is composed of a refractory layer, a thermal insulation layer and an adhesive layer combined together; the thickness ratio of the refractory layer, thermal insulation layer, and adhesive layer is 2:1:1;

[0052] The refractory layer is composed of the following materials in parts by weight:

[0053] 55 parts of graphite powder, 20 parts of clay, 2 parts of sodium chloride, 5 parts of calcium chloride, 5 parts of magnesium oxide, 20 parts of binder;

[0054] The insulation layer is made up of the following materials in parts by weight:

[0055] 10 parts of graphite powder, 30 parts of cement, 10 parts of fly ash, 1 part of foaming agent, 5 parts of glass fiber, 0.5 parts of silane coupling agent;

[0056] The bonding layer is made up of the following materials in parts by weight:

[0057...

Embodiment 2

[0068] This embodiment discloses a novel graphite refractory plate and its production process, specifically as follows:

[0069] A new type of graphite refractory board, the refractory board is composed of a refractory layer, a thermal insulation layer and an adhesive layer combined together; the thickness ratio of the refractory layer, thermal insulation layer, and adhesive layer is 2:1:1;

[0070] The refractory layer is composed of the following materials in parts by weight:

[0071] 65 parts of graphite powder, 35 parts of clay, 4 parts of sodium chloride, 10 parts of calcium chloride, 10 parts of magnesium oxide, 30 parts of binder;

[0072] The insulation layer is made up of the following materials in parts by weight:

[0073] 20 parts of graphite powder, 40 parts of cement, 20 parts of fly ash, 2 parts of foaming agent, 10 parts of glass fiber, 1 part of silane coupling agent;

[0074] The bonding layer is made up of the following materials in parts by weight:

[007...

Embodiment 3

[0087] This embodiment discloses a novel graphite refractory plate and its production process, specifically as follows:

[0088] A new type of graphite refractory board, the refractory board is composed of a refractory layer, a thermal insulation layer and an adhesive layer combined together; the thickness ratio of the refractory layer, thermal insulation layer, and adhesive layer is 2:1:1;

[0089] The refractory layer is composed of the following materials in parts by weight:

[0090] 60 parts of graphite powder, 27 parts of clay, 3 parts of sodium chloride, 7.5 parts of calcium chloride, 7.5 parts of magnesium oxide, 25 parts of binder;

[0091] The insulation layer is made up of the following materials in parts by weight:

[0092] 15 parts of graphite powder, 35 parts of cement, 15 parts of fly ash, 1.5 parts of foaming agent, 7.5 parts of glass fiber, 0.75 parts of silane coupling agent;

[0093] The bonding layer is made up of the following materials in parts by weight...

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Abstract

The invention discloses a novel graphite refractory material plate and a production process. The refractory material plate is composed of a refractory layer, a heat preservation layer and a bonding layer which are compounded into a whole and have the thickness ratio of 2: 1: 1. The refractory layer is composed of graphite powder, clay, sodium chloride, calcium chloride, magnesium oxide and a binding agent, the heat preservation layer is composed of graphite powder, cement, coal ash, a foaming agent, glass fibers and a silane coupling agent, and the bonding layer is composed of graphite powder,ceramic powder, a diatomite and the binding agent. The process comprises the following steps: preparing raw materials, pre-curing the raw materials, preparing the refractory layer, the heat preservation layer and the bonding layer, compounding the three layers into a whole in a nitriding machine, sintering and molding, finally drying, and cooling at room temperature to obtain the refractory material plate. The graphite refractory material plate has the advantages of excellent thermal shock resistance, low thermal expansion coefficient, high cracking resistance and the like, heat loss during smelting is reduced, and energy utilization is improved.

Description

technical field [0001] The invention relates to a material plate and a process, in particular to a novel graphite refractory material plate and a production process. Background technique [0002] Refractory materials are materials whose physical and chemical properties allow them to be used in high-temperature environments. Refractory materials are used in various fields of national economy such as steel, non-ferrous metals, glass, cement, ceramics, petrochemicals, machinery, boilers, light industry, electric power, and military industry. , is an indispensable basic material to ensure the production and operation of the above-mentioned industries and technological development, and plays an irreplaceable important role in the development of high-temperature industrial production; graphite refractory is due to its excellent slag resistance, thermal stability, high thermal conductivity, etc. High temperature performance, widely used in iron and steel metallurgical process. At ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/82C04B35/622C04B35/14B32B7/12B32B9/00B32B9/04B32B13/04
CPCC04B35/66C04B35/82C04B35/62204C04B35/14B32B9/007B32B9/04B32B13/04B32B7/12C04B2235/425C04B2235/349C04B2235/444C04B2235/3206C04B2235/3418C04B2235/483
Inventor 吕尊华李继森司崇殿
Owner 山东华达新材料有限公司
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