Method for producing high alumina refined powder by using alumyte
A high-alumina bauxite and bauxite technology is applied in the field of bauxite pretreatment and production of high-alumina bauxite refined powder, which can solve the problem that bauxite clinker is difficult to grind and high-alumina bauxite refined powder is produced. Introduced, product quality is harmful and other issues, to achieve the effect of reducing production energy consumption, low cost, and improving yield
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Embodiment 1
[0026] Example 1 The high-alumina bauxite boiled concentrate powder used as a raw material for oil fracturing proppant is produced through the following procedures:
[0027] ① Crushing and mud washing process: use a jaw crusher to crush high-quality bauxite to a particle size of less than 100mm, then wash away the sediment with water in a spiral mud washer, and then clean it with clean water; then use manual sorting to remove impurities , finely crushed with an impact crusher to a particle size below 10mm;
[0028] ②Combined selection process: wet-grind the bauxite with a particle size of less than 10mm after desilting to about 150 mesh in a primary ball mill with 2-3 chambers, and then classify it through a hydraulic spiral classifier, and the separated bauxite The coarse ore is returned to the ball mill for re-grinding, and the fine granular material is mixed with water to form an ore slurry. After passing through the first-stage GTC-1 high-gradient strong magnetic separator...
Embodiment 2
[0031] Embodiment 2 Produce the boiled concentrate powder of high alumina bauxite used as the raw material of alumina ceramics through the following procedures:
[0032]① Crushing and mud washing process: coarsely crush the inferior bauxite with a jaw crusher until the particle size is below 100mm, then wash it with water in a spiral mud washer to remove the sediment, and then clean it with clean water; then use manual sorting to remove impurities , finely crushed with an impact crusher to a particle size below 10mm;
[0033] 2. joint selection process: with embodiment 1;
[0034] ③Forming and calcining process: Press the bauxite concentrate powder obtained in the previous process into blocks and calcinate at a high temperature of 1420-1450°C in a φ2m×60m rotary kiln to obtain clinker, and then send the clinker to the cooler. Cool the hot clinker with air;
[0035] ④ Grinding process: The cooled cooked concentrate is sent to a dry mill, and ball milled with corundum balls to...
Embodiment 3
[0036] Example 3 The bauxite fine powder used as industrial alumina raw material is produced through the following procedures:
[0037] 1. Broken mud washing process: with embodiment 2;
[0038] ②Combined selection process: wet-grind the bauxite with a particle size of less than 10mm after desilting to about 150 mesh in a primary ball mill with 2-3 chambers, and then classify it through a hydraulic spiral classifier, and the separated bauxite The coarse ore is returned to the ball mill for re-grinding, and the fine granular material is mixed with water to form an ore slurry. After passing through the first-stage GTC-1 high-gradient strong magnetic separator, the titanium-containing and iron-containing minerals selected are tailings containing titanium and iron. The ore pulp that removes ferro-titanium is sorted through the first and second GPS high-frequency fine-hole sieving machines that are continuously installed. The sieve diameter of the fine sieve is 0.1 mm, and the sepa...
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