Geopolymer brick fabrication system

Patent metadata

Field	Value
Publication number	US-9597818-B2
Application number	US-201414450296-A
Country	US
Kind code	B2
Filing date	Aug 4, 2014
Priority date	Aug 4, 2014
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

Abstract

A geopolymer brick fabrication system comprising a mixer ( 100 ) having a tank ( 101 ) which comprises a closeable bottom outlet ( 102 ) and an inner surface coated with saturated polyester resin that is resistant against corrosive geopolymeric material for receiving the geopolymer raw material to be mixed by shaft ( 103 ) driven by a spindle motor ( 104 ) a molding section ( 200 ) to receive the mixed geopolymer raw material through a slanted conveyer ( 105 ) upon opening of the closeable outlet ( 102 ) for shaping the mixture under pressure inside a mold ( 201 ) to obtain a geopolymer brick and a curing section ( 300 ) having a moving platform ( 301 ) across a curing chamber ( 302 ) to simultaneously cure and transport the brick thereon.

First claim

The invention claimed is:

1. A geopolymer brick fabrication system comprising:
a mixer ( 100 ) having a tank ( 101 ) on a frame structure ( 106 ), the tank ( 101 ) including a closeable bottom outlet ( 102 ) and an inner surface coated with a saturated polyester resin that is resistant against a corrosive geopolymeric material, the inner surface for receiving a geopolymer raw material to be mixed by a shaft ( 103 ) driven by a spindle motor ( 104 );
a moulding section ( 200 ) to receive a first portion of the mixed geopolymer raw material from the tank ( 101 ) through a slanted conveyer ( 105 ) upon opening of the closeable outlet ( 102 ) for shaping the mixture under pressure inside a mould ( 201 ) to obtain a geopolymer brick;
a curing section ( 300 ) having a moving platform ( 301 ) across a curing chamber ( 302 ) to simultaneously cure and transport the geopolymer brick thereon; and
wherein the frame structure ( 106 ) and the slanted conveyor ( 105 ) move into contact with the geopolymer brick formed at the moulding section ( 200 ) prior to release of a second portion of the geopolymer raw material mixture from the slanted conveyor ( 105 ), the slanted conveyor ( 105 ) pushing an instance of the geopolymer brick into the curing section ( 300 ) prior to releasing the second portion of the geopolymer raw material into the mould ( 201 ) of the moulding section ( 200 ).

2. A system according to claim 1 , wherein the tank ( 101 ) has a mixing capacity in a range from 40-200 kg of the geopolymer raw material.

3. A system according to claim 1 , wherein the moulding section ( 200 ) has an ejector ( 204 ) beneath the mould ( 201 ) to release the geopolymer brick therefrom.

4. A system according to claim 1 further comprising an extension conveyer ( 400 ) between the moulding section ( 200 ) and the curing section ( 300 ).

5. A system according to claim 1 further comprising a controller ( 303 ) to regulate operation of the system and movement of the frame structure ( 106 ) and the slanted conveyor ( 105 ).

6. A system according to claim 1 , wherein the geopolymer raw material comprises a combination of pozzolanic material, alkaline activator and aggregate.

7. A system according to claim 6 , wherein the pozzolanic material is derived from fly ash, volcanic ash, palm oil fly ash or a combination thereof.

Assignees

• King Abdul Aziz City Science & Tech (Kacst)
• King Abdulaziz City Sci & Tech

Inventors

• Abdullah Mohd Mustafa Al Bakri
• Tahir Muhammad Faheem Mohd
• Hussin Kamarudin
• Selimin Mohammad Tamizi
• Ibrahim Wan Mastura Wan
• Ahmad Muhd Izzat
• Ghazali Che Mohd Ruzaidi
• Ismail Khairul Nizar
• Binhussain Mohammed

Classifications

• C04B12/005

  Geopolymer cements, e.g. reaction products of aluminosilicates with alkali metal hydroxides or silicates · CPC title

• B28B15/00 Primary

  General arrangement or layout of plant {; Industrial outlines or plant installations} · CPC title

• B28C5/12

  with stirrers sweeping through the materials {, e.g. with incorporated feeding or discharging means or with oscillating stirrers} · CPC title

• Y02P40/10

  Production of cement, e.g. improving or optimising the production methods; Cement grinding · CPC title

• C04B28/006

  containing mineral polymers, e.g. geopolymers of the Davidovits type · CPC title