CN102976770A - Fire resisting paint capable of being used outdoors - Google Patents

Abstract

The invention discloses a fire resisting paint capable of being used outdoors. Base raw materials of the fire resisting paint capable of being used outdoors and the mass percents of the base raw materials are as follows: main base material granules with an average particle size of being equal to or smaller than 3 millimeters comprise 40 wt% to 50 wt%; main base material fine powder with an average particle size of being equal to or smaller than 100 micrometers comprises 15 wt% to 18 wt%; reinforcing fiber velvet comprises 4 wt% to 5 wt%; reinforcing fiber mud comprises 4 wt% to 5 wt5; SiO2 superfine powder with an average particle size of being equal to or smaller than 5 micrometers comprises 7 wt% to 10 wt%; water-resistant binder comprises 20 wt% to 25 wt%. The sum of the masses of all the base materials is a whole and coagulants need to be added besides the whole. The mass of the coagulants added besides the whole is 1% to 2% of the mass of the whole. Compound water reducer needs to be added besides the whole, and the mass of the compound water reducer added besides the whole accounts for 0.2% to 0.4% of the mass of the whole. The fire resisting paint capable of being used outdoors can be used for thermal devices which are operated outdoors, is free of cracking under rain wash or sun shine, and has certain functions of preserving heat.

Description

A kind of refractory paint that can use in the open

Technical field

The present invention relates to technical field of refractory materials, especially relate to a kind of refractory paint that is applicable to use in the open.

Background technology

Some Thermal Equipments arrange in the open, in the Thermal Equipment work because the variation of kiln technological temperature, so that the volume of expose changes, cause body of heater cracking or displacement, may cause and leak or the string fire, affect the normal operation of Thermal Equipment, worsen staff's operating environment.General treating method is to cover one deck refractory paint at expose, and these coating normal operation organic or inorganic binding agents are as the wedding agent of bonding fireproof refractory.But most of wedding agent is thermohardening or air-setting, through sunshine and rain drop erosion meeting produce cracking even come off for a long time, the coke oven vault of for example arranging in the open, work long hours and cause the vault volume change, go here and there fire so that brickwork joint cracks, the coking chamber operating mode worsened, be coated with spread the refractory paint sealing after, rainwash and sun exposure also can cause the coating cracking to come off, and same example also has some open-air boilers of arranging, down-draft kiln etc.

Summary of the invention

For the problems referred to above that prior art exists, the applicant provides a kind of refractory paint that can use in the open.Use on the Thermal Equipment that the present invention can work in the open, dope layer does not ftracture under rain drop erosion, sun exposure, and possesses certain insulation effect.

Technical scheme of the present invention is as follows:

A kind of refractory paint that can use in the open, the mass percent of its base material raw material and each base material raw material is:

Main substrate particles: mean particle size≤3mm, 40 ~ 45%;

Main base material fine powder: mean particle size≤100 μ m, 15 ~ 18%;

Fortifying fibre suede: 4 ~ 5%;

Fortifying fibre mud: 4 ~ 5%;

SiO ₂Ultrafine powder: mean particle size≤5 μ m, 7 ~ 10%;

Anti-waterbinding agent: 20 ~ 25%;

The quality of above-mentioned each base material raw material and as a whole need to be added setting accelerator outside this integral body, the quality that institute adds setting accelerator is 1 ~ 2% of this total quality; Need to add composite water-reducing agent outside this integral body, the quality that institute adds composite water-reducing agent is 0.2 ~ 0.4% of this total quality;

Described main base material is at least a in flint clay, bauxitic clay, corundum, the kyanite;

Described fortifying fibre suede is at least a in aluminum silicate fiber, mullite fiber, the rock wool fibers;

Described fortifying fibre mud is aluminum silicate fiber, mullite fiber, rock wool fibers and at least a with the mixture of kyanite fine powder, refractory mortar, fire-resistant fine powder after pulverizing;

The concrete preparation method of this refractory paint gets final product for above-mentioned raw materials is mixed.

The technique effect that the present invention is useful is:

The present invention uses anti-waterbinding agent to be the binding agent of coating, use ultrafine powder to strengthen the intensity of coating, interpolation fiber pug, fiber suede are the reinforcing-fiber substrate of coating, main base material is selected according to the working condition of Thermal Equipment, and the scene adds the water action of forced stirring can spread upon the surface use.Main base material can determine that according to the operating mode of Thermal Equipment such as coke oven, its coking chamber working temperature is greatly about 1250 ℃, and the limit also can not surpass 1350 ℃, can use the bauxitic clay grog of flint clay, low grade.The Thermal Equipment higher such as temperature can be selected the materials such as high-grade bauxitic clay grog or corundum.

The filamentary material of fortifying fibre suede can according to the operating mode choice for use of Thermal Equipment, select the staple fibre qualified, that staple length is no more than 2mm to form equally.SiO ₂But it mainly is intensity and the application property that strengthens coating that micro mist adds, under the certain temperature, and the SiO of aquation ₂Ultrafine powder product intensity strengthens greatly, makes the superincumbent work of intensity energy underwriter of coating moulding, is that coating is lubricious simultaneously, and viscosity strengthens, and spreading property is better.

Anti-waterbinding agent is a kind of mixture that can aquation under the setting accelerator effect produces the mineral compound of intensity, and this wedding agent does not reduce the intensity of formed body even duck in drink after producing intensity yet, even at high temperature simultaneously, have equally fire performance.

Embodiment

Embodiment 1

The refractory paint that preparation recovery type heat 80 hole coke oven vaults use mixes each raw material to stir and gets final product, and the title of its each raw material, granularity and weight are shown in Table 1.

Table 1

Embodiment 2

High temperature 200m is burnt till in preparation in the open ³Shuttle kiln kiln top refractory paint,, each raw material mixed to stir get final product, the title of its each raw material, granularity and weight are shown in Table 2.

Table 2

Embodiment 3

Prepare the water tolerance refractory paint on the open-air coke oven expose,, each raw material mixed to stir get final product, the title of its each raw material, granularity and weight are shown in Table 3.

Table 3

Claims (2)

1. refractory paint that can use in the open is characterized in that the mass percent of its base material raw material and each base material raw material is:

Main substrate particles: mean particle size≤3mm, 40 ~ 45%;

Main base material fine powder: mean particle size≤100 μ m, 15 ~ 18%;

Fortifying fibre suede: 4 ~ 5%;

Fortifying fibre mud: 4 ~ 5%;

SiO ₂Ultrafine powder: mean particle size≤5 μ m, 7 ~ 10%;

Anti-waterbinding agent: 20 ~ 25%;

The quality of above-mentioned each base material raw material and as a whole need to be added setting accelerator outside this integral body, the quality that institute adds setting accelerator is 1 ~ 2% of this total quality; Need to add composite water-reducing agent outside this integral body, the quality that institute adds composite water-reducing agent is 0.2 ~ 0.4% of this total quality;

Described main base material is at least a in flint clay, bauxitic clay, corundum, the kyanite;

Described fortifying fibre suede is at least a in aluminum silicate fiber, mullite fiber, the rock wool fibers;

Described fortifying fibre mud is at least a for the mixture of aluminum silicate fiber, mullite fiber, rock wool fibers and kyanite fine powder after pulverizing, refractory mortar, fire-resistant fine powder.

2. a kind of refractory paint that can use in the open according to claim 1 is characterized in that concrete preparation method gets final product for above-mentioned raw materials is mixed.