CN106145725A

CN106145725A - The flying dust utilizing desulfurization to generate electricity is manufactured into the composition of building materials

Info

Publication number: CN106145725A
Application number: CN201610638796.2A
Authority: CN
Inventors: 连进添; 连阡泛
Original assignee: Guangfeng Environmental Protection Technology Co Ltd Chang Sheng
Current assignee: Guangfeng Environmental Protection Technology Co Ltd Chang Sheng
Priority date: 2016-08-05
Filing date: 2016-08-05
Publication date: 2016-11-23

Abstract

The invention discloses a kind of flying dust utilizing desulfurization to generate electricity and be manufactured into the composition of building materials, with produced flying dust anhydrous gypsum (the β CaSO of circulation of fluid bed steam generating₄Anhydrite) 90% add that cohering reactant 10% makes building materials, it is used in non-structural cement mortar, pavement brick, artistic wall face brick, indoor compartment fire wall or plasterboard, the reactant that coheres therein has half-H 2 O calcium sulphate 70%, sodium sulfate 10%, calcium oxide 10%, sodium hydroxide 5%, cement 0 5%, starch 0 5%, and the aquiform stool being formed plus gross weight ten to four 13 percent can form hydration reaction.The flying dust utilizing desulfurization to generate electricity of the present invention is manufactured into building materials and is mixed into flying dust anhydrous gypsum regeneration with the applicable reactant that coheres, and only needs suitable quantity of water can produce the building materials of the strength of cement that matches in excellence or beauty, can effectively utilize flying dust.

Description

The flying dust utilizing desulfurization to generate electricity is manufactured into the composition of building materials

Technical field

The present invention relates to discarded flying dust recycling field, particularly relate to a kind of flying dust utilizing desulfurization to generate electricity and be manufactured into building materials Composition.

Background technology

Platform moulds the six CFB Boiler (circulation of fluid bed steam power-generating system) gently using U.S. ALSTOM, with oil Burnt: limestone=2:1 mixing is sent into CFB and carried out high-temperature oxydation burning promotion gas-turbine generating and supply steam, and it produces every day The side-product flying dust (including powdery mixed gypsum, granular by-product lime and aquation Gypsum Fibrosum) of hundreds of tonnes, cannot effectively locate so far Reason, owing to this mixing by-product lime is 850 DEG C more than-900 DEG C side-products produced, β anhydrous gypsum (β CaSO₄anhydrite) Formation condensation cannot be reacted by fast hydration at normal temperatures and pressures with water, therefore have influence on the usability of flying dust.

Summary of the invention

It is an object of the invention to provide a kind of flying dust utilizing desulfurization to generate electricity and be manufactured into the composition of building materials, cohere with applicable Reactant is mixed into flying dust (CFB ash) anhydrous gypsum regeneration, only needs suitable quantity of water can produce the building materials of the strength of cement that matches in excellence or beauty, can Effectively utilize flying dust.

For achieving the above object, the present invention provides a kind of flying dust utilizing desulfurization to generate electricity to be manufactured into the composition of building materials, to follow The produced flying dust anhydrous gypsum 90% of ring fluidized bed steam generating makes building materials plus cohering reactant 10%, therein glutinous Knot reactant has half-H 2 O calcium sulphate 70%, sodium sulfate 10%, calcium oxide 10%, sodium hydroxide 5%, cement 0-5%, starch 0- 5%, the aquiform stool being formed plus gross weight ten to four 13 percent can form hydration reaction.

As a further improvement on the present invention, wherein powdery mixed gypsum 100% can also add the granular Calx of flying dust 130% Or aquation Gypsum Fibrosum 75% is to make various building materials.

Compared with prior art, the flying dust utilizing desulfurization to generate electricity of the present invention is manufactured into the composition of building materials and coheres with applicable Reactant is mixed into flying dust anhydrous gypsum regeneration, only needs suitable quantity of water can produce the building materials of the strength of cement that matches in excellence or beauty, can be effective Utilize flying dust.

Detailed description of the invention

The described flying dust utilizing desulfurization to generate electricity is manufactured into the composition of building materials, is produced with the generating of circulation of fluid bed steam Flying dust anhydrous gypsum (β CaSO₄) 90% make building materials plus cohering reactant 10%, it is mainly used for non-structural cement bonded sand Slurry, pavement brick, artistic wall face brick, indoor compartment fire wall and plasterboard etc., the reactant that coheres therein has half water Calcium sulfate (CaSO₄.1/2H₂O) 70%, sodium sulfate (Na₂SO₄) 10%, calcium oxide (CaO quick lime) 10%, sodium hydroxide (NaOH burns salty) 5%, cement 0-5%, starch 0-5%, therefore formed the water of ten to four 13 percent plus gross weight Just hydration reaction can be formed.

Its chemical reaction is as follows:

It is as follows that it makes product:

The goods of the present invention can meet the building materials demand of normality, only need to add the 10% of above-mentioned total amount, and the present invention's is anti- Adhesive agent is answered i.e. to may conform to the building materials strength demand of normality.Wherein powdery mixed gypsum 100% can also add the granular Calx of flying dust 130% or aquation Gypsum Fibrosum 75% to make various building materials.

In compositions in sum, the present invention use specifically cohere reactant add produce reaction facilitate anhydrous gypsum Reaction produce and cohere, so being provided that good usability, be one completely from known different compositing formula.

Above in association with most preferred embodiment, invention has been described, but the invention is not limited in enforcement disclosed above Example, and amendment, the equivalent combinations that the various essence according to the present invention is carried out should be contained.

Claims

1. the flying dust utilizing desulfurization to generate electricity is manufactured into the composition of building materials, it is characterised in that: send out with circulation of fluid bed steam The produced flying dust anhydrous gypsum of electricity 90% adds that cohering reactant 10% makes building materials, is used in non-structural cement mortar, people Row Footpath brick, artistic wall face brick, indoor compartment fire wall or plasterboard, the reactant that coheres therein has half-H 2 O calcium sulphate 70%, sodium sulfate 10%, calcium oxide 10%, sodium hydroxide 5%, cement 0-5%, starch 0-5%, is formed plus gross weight Ten to four 13 percent aquiform stool can form hydration reaction.

The flying dust utilizing desulfurization to generate electricity the most as claimed in claim 1 is manufactured into the composition of building materials, it is characterised in that: wherein powdery Mixed gypsum 100% can also add the granular Calx of flying dust 130% or aquation Gypsum Fibrosum 75% to make various building materials.