A burn-free brick with coal gangue and red mud as main ingredients and its preparation method
A technology of coal gangue and non-burning bricks, which is applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problem of high compressive strength, and achieve the effects of improving strength, obvious economic benefits and reducing production costs.
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Embodiment 1
[0048] A method for producing burn-free bricks with coal gangue and red mud as main raw materials, comprising the following steps:
[0049] 1. Dry the red mud and coal gangue at 105°C for 3 hours respectively. After natural cooling, crush the dried red mud and pass through a 80-mesh sieve to obtain red mud powder. Grind the dried coal gangue and pass through a 100-mesh sieve. Mesh sieve to get gangue powder.
[0050] 2. The fly ash is first dried at 105°C for 3 hours, cooled naturally, and then crushed into a powder with a 100-mesh sieve with a residue of less than 5%.
[0051] 3. Weigh 25g of red mud powder, 20g of coal gangue powder, and 8g of fly ash. Stir and mix the above raw materials evenly for initial mixing. The mixing time for the initial mixing is 3 minutes, then add 8g of water, and then perform secondary mixing after stirring. The mixing time of the secondary mixing was 5 minutes to obtain a mixture. The added water can be tap water, recovered reclaimed water or...
Embodiment 2
[0057] A method for producing burn-free bricks with coal gangue and red mud as main raw materials, comprising the following steps:
[0058] 1. Dry the red mud and coal gangue at 100°C for 3 hours respectively. After natural cooling, crush the dried red mud and pass through a 80-mesh sieve to obtain red mud powder. Grind the dried coal gangue and pass through a 100-mesh sieve. Mesh sieve to get gangue powder.
[0059] 2. The fly ash is first dried at 100°C for 3 hours, cooled naturally, and then crushed into a powder with a 100-mesh sieve with a residue of less than 5%.
[0060] 3. Weigh 35g of red mud powder, 30g of coal gangue powder, and 10g of fly ash. Stir and mix the above raw materials evenly for initial mixing. The mixing time for the initial mixing is 5 minutes, then add 10g of water, and then perform secondary mixing by stirring. The mixing time of the secondary mixing was 3 minutes to obtain a mixture. The added water can be tap water, recovered reclaimed water or ...
Embodiment 3
[0065] A method for producing burn-free bricks with coal gangue and red mud as main raw materials, comprising the following steps:
[0066] 1. Dry the red mud and coal gangue at 105°C for 3 hours respectively. After natural cooling, crush the dried red mud and pass through a 80-mesh sieve to obtain red mud powder. Grind the dried coal gangue and pass through a 100-mesh sieve. Mesh sieve to get gangue powder.
[0067] 2. The fly ash is first dried at 105°C for 3 hours, cooled naturally, and then crushed into a powder with a 100-mesh sieve with a residue of less than 5%.
[0068] 3. Weigh 15g of red mud powder, 10g of coal gangue powder, and 4g of fly ash. Stir and mix the above raw materials evenly for initial mixing. The mixing time for the initial mixing is 5 minutes, then add 8g of water, and then carry out secondary mixing by stirring. The mixing time of the secondary mixing was 4 minutes to obtain a mixture. The added water can be tap water, recovered reclaimed water or ...
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Abstract
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