CN106336240A

CN106336240A - Gangue porous sintered brick and manufacturing method thereof

Info

Publication number: CN106336240A
Application number: CN201610689031.1A
Authority: CN
Inventors: 岳佐星
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-19
Filing date: 2016-08-19
Publication date: 2017-01-18

Abstract

The invention discloses a gangue porous sintered brick, which is composed of the following raw materials (by weight): 30-45 parts of gangue, 30-45 parts of fly ash and 20-35 parts of shale. The invention also discloses a manufacturing method of the gangue porous sintered brick, comprising the following steps: processing raw materials, stirring and mixing, compressing for moulding, drying and sintering. By the adoption of the technical scheme and by substituting shale for clay, cultivated farmland is avoided from being destroyed. By adding gangue, industrial waste residue can be fully utilized. The gangue can be spontaneously combusted during the sintering process. Then, vertical pores are formed. Therefore, weight per unit volume is reduced, and it is ensured that the brick has better sound insulation and thermal insulation effects. Dew formation will not occur to interior walls in winter. The brick is spontaneously combusted so as to reduce consumption of fuels, and good performance of the sintered brick is guaranteed.

Description

A kind of gangue porous baked brick and preparation method thereof

Technical field

A kind of the invention belongs to construction material production field, it is more particularly related to gangue porous baked brick And preparation method thereof.

Background technology

The existing certain intensity of fired brick, has preferably heat-insulated, sound insulation property again, and winter indoor wall is not in condensation Phenomenon, presently commercially available is cheap；Although various new materials for walls continuously emerge, fired brick is in a period of time from now on Interior, still can be used in masonry project as a kind of main material, the ordinary fired brick of prior art is with clay as primary raw material, This brick expends substantial amounts of clay every year, and available arable land is damaged, and sintering process consumes substantial amounts of fuel, discharges cigarette Mist, had not only wasted the energy but also had polluted environment.

Content of the invention

The technical problem to be solved is to provide a kind of gangue porous burning avoiding wasting energy pollution environment Knot brick.

To achieve these goals, the technical scheme that the present invention takes is a kind of gangue porous baked brick of being provided, It is made up of following raw materials by weight: 30 ~ 45 parts of gangue；30 ~ 45 parts of flyash；20 ~ 35 parts of shale.

A kind of gangue porous baked brick disclosed by the invention, the chemical composition of page rock is si0₂Content be 55% ~ 70%, from al₂o₃Content be 10% ~ 20%, fe₂o₃Content be 2% ~ 10%, cao content < 15%, mso content < 3%.

A kind of gangue porous baked brick disclosed by the invention, gangue is the consolidating of discharge during coal mining process and coal washing Body waste.

The invention also discloses a kind of preparation method of gangue porous baked brick, comprise the steps: Feedstock treating, stir Mix mixing, compressing, it is dried, sintering.

A kind of preparation method of gangue porous baked brick disclosed by the invention, all Raw material processings are become powder by Feedstock treating Last shape, gangue is crushed to below 1mm and isolates troilite.

A kind of preparation method of gangue porous baked brick disclosed by the invention, stirring mixing is will to isolate troilite Gangue powder, flyash and slate flour make half-dried pug after mixing.

A kind of preparation method of gangue porous baked brick disclosed by the invention, compressing is to adopt high-pressure molding, becomes Type pressure is 20 ~ 25mpa, places drying, and the time being dried is 12 ~ 15 days.

A kind of preparation method of gangue porous baked brick disclosed by the invention, sintering is to be placed in dried adobe 48 ~ 52 hours are burnt till at 900～1100 DEG C.

Using technical scheme, replace clay using shale, it is to avoid destroy cultivable farmland, add gangue Industrial residue can be made full use of, gangue available spontaneous combustion during sintering, not only define and there is vertical hole, mitigate The weight of unit volume, ensure that swivel is provided with the effect of more preferable sound-insulating and heat-insulating, winter indoor wall will not go out simultaneously Existing dew condensation phenomenon, brick body spontaneous combustion, decrease the consumption of fuel；Ensure that the better performances of fired brick；Clay brick is at high temperature Faintly acid, the ability of alkali resistance slag corrosion is slightly worse, but with al₂o₃Content improves and strengthens, and heat endurance is compared with silica brick, magnesia brick etc. Preferably, it is a kind of building materials of the New type weight loading with conventional clay fired brick characteristic.

Below with reference to embodiment, the present invention is described in detail.

Specific embodiment

Below by the description to embodiment, the shape of each component for example involved to the specific embodiment of the present invention, Construction, the mutual alignment between each several part and annexation, the effect of each several part and operation principle, manufacturing process and operate with Method etc., is described in further detail, to help those skilled in the art that the inventive concept of the present invention, technical scheme are had More complete, accurate and deep understanding.

Raw material gangue in the present invention is the solid waste of discharge during coal mining process and coal washing；The chemistry of page rock Composition is si0₂Content be 55% ~ 70%, from al₂o₃Content be 10% ~ 20%, fe₂o₃Content be 2% ~ 10%, cao content < 15%, mso content < 3%；

Embodiment 1

A kind of present invention gangue porous baked brick, is made up of following raw materials by weight: gangue 45kg；Flyash 35kg；Shale 30kg；

The invention also discloses a kind of preparation method of gangue porous baked brick, comprise the steps:

1) Feedstock treating: will be powdered for all Raw material processings, gangue is crushed to below 1mm and isolates troilite；

2) stirring mixing: make half-dried after gangue powder, flyash and the slate flour of isolating troilite are mixed Pug；

3) compressing: to adopt high-pressure molding, briquetting pressure is 20 ~ 25mpa；

4) it is dried: drying placed by the blank after shaping, the time being dried is 14 days；

5) sinter: dried adobe is placed at 900～1100 DEG C and burns till 52 hours；

Embodiment 2

A kind of present invention gangue porous baked brick, is made up of following raw materials by weight: gangue 35kg；Flyash 30kg；Shale 35kg；

4) it is dried: drying placed by the blank after shaping, the time being dried is 15 days；

5) sinter: dried adobe is placed at 900～1100 DEG C and burns till 50 hours；

The fired brick that above-described embodiment of upchecking obtains, according to national standard test, its compression strength: 38 ~ 38.5 mpa；Gas Porosity is 25.4 ~ 24.2%, and hydration-resisting, freeze proof index are better than traditional clay brick；

Using technical scheme, replace clay using shale, it is to avoid destroy cultivable farmland, add gangue can fill Divide and utilize industrial residue, gangue available spontaneous combustion during sintering, not only define and there is vertical hole, alleviate list The weight of position volume, ensure that swivel is provided with the effect of more preferable sound-insulating and heat-insulating, winter indoor wall is not in knot simultaneously Dew phenomenon, brick body spontaneous combustion, decrease the consumption of fuel；Ensure that the better performances of fired brick；Clay brick is in weak acid at high temperature Property, the ability of alkali resistance slag corrosion is slightly worse, but with al₂o₃Content improve and strengthen, heat endurance compared with silica brick, magnesia brick etc. preferably, It is a kind of building materials of the New type weight loading with conventional clay fired brick characteristic.

Above the present invention is exemplarily described it is clear that the present invention implements is not subject to the restrictions described above, As long as employing the improvement of various unsubstantialities that method of the present invention design and technical scheme are carried out, or not improved by this Bright design and technical scheme directly apply to other occasions, all within protection scope of the present invention.

Claims

1. a kind of gangue porous baked brick it is characterised in that: be made up of following raw materials by weight: 30 ~ 45 parts of gangue； 30 ~ 45 parts of flyash；20 ~ 35 parts of shale.

2. according to a kind of gangue porous baked brick described in claim 1 it is characterised in that: described page rock chemistry one-tenth It is divided into si0₂Content be 55% ~ 70%, from al₂o₃Content be 10% ~ 20%, fe₂o₃Content be 2% ~ 10%, cao content < 15%, mso content < 3%.

3. according to a kind of gangue porous baked brick described in claim 1 it is characterised in that: described gangue be mined The solid waste of discharge during journey and coal washing.

4. one kind according to the gangue porous baked brick described in claim 1 ~ 3 preparation method it is characterised in that: include as follows Step: Feedstock treating, stirring mixing, compressing, it is dried, sintering.

5. according to a kind of gangue porous baked brick described in claim 4 preparation method it is characterised in that: described raw material Processing will be powdered for all Raw material processings, and gangue is crushed to below 1mm and isolates troilite.

6. according to a kind of gangue porous baked brick described in claim 4 preparation method it is characterised in that: described stirring Mixing be gangue powder, flyash and the slate flour of isolating troilite are mixed after make half-dried pug.

7. according to a kind of gangue porous baked brick described in claim 4 preparation method it is characterised in that: described compacting Shaping is to adopt high-pressure molding, and briquetting pressure is 20 ~ 25mpa, places drying, and the time being dried is 12 ~ 15 days.

8. according to a kind of gangue porous baked brick described in claim 4 preparation method it is characterised in that: described sintering It is dried adobe to be placed at 900～1100 DEG C burn till 48 ~ 52 hours.