Muck-Bayer process red mud-based ceramsite and preparation method thereof
A technology of Bayer red mud and slag, which is applied in the field of slag-Bayer red mud-based ceramsite and its preparation, which can solve the problems of insufficient utilization of solid waste, difficulty in obtaining fine grains, and affecting the strength of ceramsite , to achieve high strength, save time and cost, and control timely effects
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0051] The preparation method of slag soil-Bayer process red mud-based ceramsite of the present invention comprises the following steps:
[0052] (1) Mix the shield dregs and the Bayer process red mud evenly to obtain the batching materials;
[0053] (2) After adding a certain amount of water to the batch, mix it evenly and make a ball, and use the method of manual ball forming to prepare a raw material with a particle size of 5-10mm (such as 5mm, 6mm, 7mm, 8mm, 9mm, 10mm). Material balls; wherein, the amount of water added should be able to be manually formed into balls, generally 30% of the mass of the batch;
[0054] (3) Dry the raw meal balls at 105°C for 4 hours and then carry out microwave sintering. Specifically, put the dried raw meal balls into the special insulation cotton for microwave sintering furnace, and put them together into the microwave heating cavity for sintering. Sintering: Microwave sintering conditions are: microwave frequency is 2.45GHz, sintering tem...
Embodiment 1
[0058] For the muck-Bayer process red mud-based ceramsite in this embodiment, the mass percentage of the shield dregs in the raw material is 70%, and the mass percentage of the Bayer process red mud is 30%.
[0059] The preparation of the slag-Bayer process red mud-based ceramsite in this embodiment includes the following steps: Grinding the solid waste obtained during shield tunneling to a sieve hole with a particle size smaller than 200 mesh, and then mixing it with the Bayer process red mud evenly Obtain the batch, add a little water in the batch to make it into balls (the quality of water is about 30% of the batch quality), and prepare the raw meal balls by hand, the particle size of the raw meal balls is 5 Between ~10mm, dry the raw material balls in a drying oven at 105°C for 4 hours, then put them in a microwave sintering furnace to start sintering, first heat at 450°C for 20 minutes for preheating, and then rise to 1075°C at 9°C / min , keep warm for 10min, and take it o...
Embodiment 2
[0061] For the muck-Bayer process red mud-based ceramsite in this embodiment, the mass percentage of the shield dregs in the raw material is 70%, and the mass percentage of the Bayer process red mud is 30%.
[0062] The preparation of the slag-Bayer process red mud-based ceramsite in this embodiment includes the following steps: Grinding the solid waste obtained during shield tunneling to a sieve hole with a particle size smaller than 200 mesh, and then mixing it with the Bayer process red mud evenly Obtain the batch, add a little water in the batch to make it into balls (the quality of water is about 30% of the batch quality), and prepare the raw meal balls by hand, the particle size of the raw meal balls is 5 Between ~10mm, dry the raw material balls in a drying oven at 105°C for 4 hours, then put them in a microwave sintering furnace to start sintering, first heat at 450°C for 20 minutes for preheating, and then rise to 1100°C at 9°C / min , keep warm for 10min, and take it o...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle size (mesh) | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More