中文站        ENGLISH

Web Search: Goods

Your present location:Home >> NEWS >> Industry News >> Refractory drift beads features introduced + production process

PROJECTS

Best-seller Products

CONTACT US

  +86 371 6697 7771
  +86 177 6166 6681
  +86 371 6977 7737
   sales@sijihuo.com  
Project details

Refractory drift beads features introduced + production process

Number of visits: Date:11/3/2016

  A, fly ash floating bead is introduced Fly ash floating bead, fly ash is contained in the hollow glass beads, some of the wall is thin, size larger, closed hollow sphere, its proportion is less than l, can float on the surface of the water, is called drift beads. It came with the generation of fly ash.

  1. The fly Ash after combustion of pulverized coal fly Ash is, from the acidity of the boiler flue gas is fine Ash residue, about 80% of fly Ash (FlyAsh), 20% for Bottom Ash (Bottom Ash), is a kind of artificial pozzolana. When 1 300 ~ 1 500 ℃ pulverized coal into the furnace, under the condition of suspension combustion after heating surface absorption of heat cooling form of fly ash. Due to the effect of surface pressure, most spherical particles of fly ash, the surface is porous, specific surface area is large, and has certain activity. Annual emissions of fly ash in China about 1. 800 million t, the utilization rate of about 30% [1]. A large amount of fly ash piled up, not only take up valuable land resources, but also one of the harmful ingredients, such as heavy metal ions by volatilization, infiltration seriously polluted the atmosphere and water environment. At present, fly ash, as a kind of main industrial waste has to be more and more applied to cement concrete, at the same time, the problems in the reduce such waste heap also played a lower dosage of cement material and improve the properties of the cement concrete.

  2. The fly ash drift beads of fly ash floating bead is extracted from the emissions from coal-fired power plants fly ash thin-wall hollow glass beads, is one of the bead of fly ash particles, named after the deep can float on the water, the output of drift beads for 0.5% ~ 1.5% of the total power plant ash discharge. Fly-ash floating beads with a fine grain, qualitative light, insulation, fireproof, sound insulation, high strength characteristics, mainly used in plastics, synthetic rubber filler, senior paint, insulation materials, insulation materials, wear-resistant parts, sub material and insulation of the space shuttle, etc., the purpose of the drift beads determines its broad market space and high use value.

  3. The characteristics of the drift beads (chemical composition, mineral composition, density, chemical activity) in table 1, 2, main physical performance indicators for drift beads, from table 1, 2 shows: (1) most of the drift beads for spherical particles surface smooth, thin wall hollow, color usually vary according to the impurity content of high and low, generally the higher the content of impurities, the deeper the color. (2) the density of drift beads loose and tight density are smaller, thus drift beads can be used as a filling material of lightweight materials. (3) drift beads of saturated bibulous rate is as high as 38%, far more than ordinary sand, stone, water absorption. (4) drift beads coefficient of thermal conductivity of 0, 065 w/m, k, can be used in the production of thermal insulation material. (5) the specific surface area of the drift beads of this study is 2516 g/cm2, also can be used in the treatment of industrial wastewater, such as drift beads after technical treatment can replace activated carbon treatment of industrial wastewater and its equivalent to that of activated carbon adsorption ability, but the price is only 1/3 of the activated carbon.

Previous post:

Next post:

TypeInfo: Industry News

Keywords for the information:

    

 

Tel : +86 371 6697 7771     Mob: +86 177 6166 6681
Email :   sales@sijihuo.com   

Address: Nanhuan Central Road, Xinmi City, Henan Province, China.

Fax : +86 371 6977 7737
 
Copyright ©   Zhengzhou Sijihuo  Refractory Co., Ltd.    
 
Message:
* Entered characters:0 Word
Less than or equal500Character
Email:
*
Verification: