CN102976770B - 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

The outdoor layout of some Thermal Equipments, due to the variation of kiln technological temperature, changes the volume of expose in Thermal Equipment work, cause body of heater cracking or displacement, may cause and leak or string fire, affect the normal operation of Thermal Equipment, worsen staff's operating environment.General treating method is on expose, to cover one deck refractory paint, and these coating generally use the bonding agent of organic or inorganic binding agent as bonding fireproof refractory.But most of bonding agent is thermohardening or air-setting, through sunshine and rain drop erosion meeting generation cracking even come off for a long time, the coke oven vault of for example arranging in the open, work long hours and cause vault volume change, brickwork joint cracked and go here and there fire, coking chamber operating mode is worsened, being coated with and spreading after refractory paint sealing, rainwash and sun exposure also can cause coating cracking to come off, and same example also has boiler, the down-draft kiln etc. of some outdoor layouts.

Summary of the invention

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

Technical scheme of the present invention is as follows:

The 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%;

Water resistant bonding agent: 20 ~ 25%;

The quality of above-mentioned each base material raw material and as a whole needs to add setting accelerator outside this entirety, to add the quality of setting accelerator be this total quality 1 ~ 2%; Outside this entirety, need to add composite water-reducing agent, to add the quality of composite water-reducing agent be this total quality 0.2 ~ 0.4%;

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

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

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

The concrete preparation method of this refractory paint is for to mix above-mentioned raw materials.

The technique effect that the present invention is useful is:

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

The filamentary material of fortifying fibre suede equally can be according to the operating mode choice for use of Thermal Equipment, selects staple fibre composition qualified, that staple length is no more than 2mm.SiO ₂micro mist add be mainly strengthen coating intensity and can application property, under certain temperature, 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.

Water resistant bonding agent is a kind of mixture that can aquation under setting accelerator effect produces the mineral compound of intensity, and this bonding agent produces after intensity, does not also reduce the intensity of formed body even if duck in drink, even if at high temperature, have equally fire performance simultaneously.

Embodiment

embodiment 1

Prepare the refractory paint that recovery type heat 80 hole coke oven vaults use, each raw material is mixed and stirred, title, granularity and the weight of its each raw material are shown in Table 1.

Table 1

embodiment 2

Prepare the outdoor high temperature 200m that burns till ³shuttle kiln kiln top refractory paint,, each raw material is mixed and stirred, title, granularity and the weight of its each raw material are shown in Table 2.

Table 2

embodiment 3

Prepare the water tolerance refractory paint on outdoor coke oven expose,, each raw material is mixed and stirred, title, granularity and the weight of its each raw material are shown in Table 3.

Table 3

Claims (2)

1. the 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%;

Water resistant bonding agent: 20 ~ 25%;

The quality of above-mentioned each base material raw material and as a whole needs to add setting accelerator outside this entirety, to add the quality of setting accelerator be this total quality 1 ~ 2%; Outside this entirety, need to add composite water-reducing agent, to add the quality of composite water-reducing agent be this total quality 0.2 ~ 0.4%;

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

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

Described fortifying fibre mud is aluminum silicate fiber, the mullite fiber after pulverizing, at least one of rock wool fibers.

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