Production technology for bauxite homogenized-material mud blank

A production process and homogenized material technology, which is applied in the production process field of bauxite homogenized material mud billet, can solve the problems of difficulty in stacking, easy deformation, and inconspicuous effect, and achieve significant economic benefits, good plasticity, and remarkable effect Effect

Inactive Publication Date: 2011-08-17
SANMENXIA XINYANGSHAO SYNTHETIC MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because bauxite is a raw material, the mud billet extruded by the extruder still contains 16-19% of water, so the billet strength is poor, and it is easy to deform, crack and fall off, which not only causes difficulties in stacking, but also is not suitable for Drying, firing and other subsequent processes are carried out, and the waste rate is as high as 40%, which seriously affects the output
In order to solve this problem, various manufacturers are currently using pulp waste liquid (calcium lignosulfonate) to solve this problem, but the effect is not obvious, especially for the production of AL 2 o 3 Bauxite homogenized materials with higher content (such as L-88, L-90, L-92) still have a scrap rate of about 30%

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A production process of bauxite homogenized material mud, comprising the following steps: (1) crushing bauxite raw ore with a jaw crusher or a double-roll crusher until the particle size is less than 5mm, and then removing iron to obtain material A; (2) Add polyaluminium chloride, lignocellulose and water to material A, the amount of polyaluminum chloride is 0.2% of the weight of material A, the amount of lignocellulose is 0.1% of material A, and the amount of water is 0.1% of material A 30% by weight, and ball milled for 5 hours to obtain mud B; (3) Mud B was dehydrated for 5 minutes, and extruded and cut by a vacuum extruder with a vacuum degree of 0.07Mpa to form a bauxite homogenized mud billet.

Embodiment 2

[0016] A production process of bauxite homogenized material mud, comprising the following steps: (1) crushing bauxite raw ore with a jaw crusher or a double-roll crusher until the particle size is less than 5mm, and then removing iron to obtain material A; (2) Add polyaluminium chloride, lignocellulose and water to material A, the amount of polyaluminium chloride is 0.4% of the weight of material A, the amount of lignocellulose is 0.2% of material A, and the amount of water is 0.2% of material A 40% by weight, ball milled for 7 hours to obtain mud B; (3) mud B was dehydrated for 10 minutes, and extruded and cut by a vacuum extruder with a vacuum degree of 0.15Mpa to form a bauxite homogenized mud billet.

Embodiment 3

[0018] A production process of bauxite homogenized material mud, comprising the following steps: (1) crushing bauxite raw ore with a jaw crusher or a double-roll crusher until the particle size is less than 5mm, and then removing iron to obtain material A; (2) Add polyaluminum chloride, lignocellulose and water to material A, the amount of polyaluminum chloride is 0.5% of the weight of material A, the amount of lignocellulose is 0.3% of material A, and the amount of water is 0.5% of material A 50% by weight, ball milled for 8 hours to obtain mud B; (3) mud B was dehydrated for 15 minutes, and extruded and cut by a vacuum extruder with a vacuum degree of 0.2Mpa to form a bauxite homogenized mud billet.

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Abstract

The invention belongs to the technical field of refractory material production, and particularly relates to a production technology for bauxite homogenized-material mud blanks. The production technology includes the steps as follows: (1) breaking bauxite raw ore and deironing to obtain a material A; (2) adding aluminium polychlorid, lignocellulose and water in the material A, conducting ball-milling to obtain a mud material B; and (3) dewatering the mud material B so as to form bauxite homogenized-material mud blank. Due to the common action of the aluminium polychlorid and the lignocellulose, the bauxite homogenized-material mud blank obtains high plasticity and high strength and avoids deformation, cracking and dropping.

Description

technical field [0001] The invention belongs to the technical field of refractory raw material production, and in particular relates to a production process of bauxite homogenized material mud blank. Background technique [0002] Usually, the production process of wet production of bauxite homogenized material is: ore crushing→wet grinding→filtering→squeezing into billet→drying→sintering. Because bauxite is a raw material, the mud billet extruded by the extruder still contains 16-19% of water, so the billet strength is poor, and it is easy to deform, crack and fall off, which not only causes difficulties in stacking, but also is not suitable for Drying, firing and other subsequent processes are carried out, and the reject rate is as high as 40%, which seriously affects the output. In order to solve this problem, various manufacturers are currently using pulp waste liquid (calcium lignosulfonate) to solve this problem, but the effect is not obvious, especially for the produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/04
Inventor 黄克忠张东方
Owner SANMENXIA XINYANGSHAO SYNTHETIC MATERIALS
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