CN101209407B - Regeneration method for aluminum fabrication plant production garbage diatomite filter aid waste residue - Google Patents

Abstract

The invention discloses a regeneration method of waste residues of diatomite filter aid which is the production garbage of aluminum fabrication plants. The method removes organic and inorganic impurities in the waste filtering residues through a processing procedure including steps of wet separation and impurity removal, filter pressing and drying, high-temperature roasting, and air separation and classification, thus regenerating the waste residues.

Description

The renovation process of aluminum fabrication plant production garbage diatomite filter aid waste residue

Technical field

The present invention relates to the nonmetallic ore Tetramune, the renovation process of diatomite filter aid waste residue.

Background technology

Diatomite is rare nonmetallic ore, and by the formed silicastone of extinct plants and animal frustule, Main Ingredients and Appearance is non-quality silica, and institute's product processed super-cell is the filter medium that filtering technique generally adopts.The diatomite filter aid waste residue that ROLLING OIL produces filters in aluminum current processing factory, is collected by a lot of self-employed workers in Henan Province, and they adopt acid treatment and distillating method that residual ROLLING OIL is separated with diatomite, and oil is as production marketing, and diatomite is thrown away, and forms secondary pollution.

Summary of the invention

The objective of the invention is the physicochemical property that utilizes diatomite itself stable, the super-cell that aluminum fabrication plant is discarded is processed as raw material, makes it become the new product of super quality and competitive price.

Because diatomite is the fossil of extinct plants and animal diatom, thus extremely stable physicochemical property is arranged, and have excellent performances such as body is light, matter is soft, acidproof, incompressible.It can be the characteristics that itself have porous as filter medium, relies on these tiny holes, and the bending channel of formation adsorbs, holds back the impurity in the liquid, filters blocked its due performance that loses in duct, back.The present invention removes the organic and inorganic impurity in diatomite waste residue surface and hole, lining according to the process of these features through wet concentration removal of impurities, pressure-filteration drying, high-temperature roasting, selection by winnowing classification, recovers its original strainability.

The invention has the beneficial effects as follows: discarded super-cell is regenerated, promptly reduce production costs, save limited mineral resources, reduce again and produce the pollution of rubbish, remarkable economic efficiency and social benefit are arranged environment.

The specific embodiment

Processing technology:

Because waste residue is often sneaked into other life and industrial refuse, handle so at first should carry out removal of impurities.

1, wet concentration is at first put into swaging machine simultaneously with waste residue and water and is stirred scouring, and have ready conditions and preferably remove more than the 100 μ m with hydrocyclone, the following impurity of 3 μ m, the impurity that makes in the diatomite to be carried secretly separates with diatomite.Do not have condition just to adopt the method for removing scrubbing tank bottom impurity after the sedimentation.

2, filter the above impurity of 100 orders with 100 eye mesh screens, stir scouring with swaging machine once more, remove pot bottom impurity after the sedimentation.Cyclic washing is to neutral, and the soluble salt that is produced when thoroughly removing oil removing, residual acid, and residual aluminium powder and grease also can add alkali or iron removing reagent in case of necessity and help washing.

3, calcining kiln roasting to 850 ℃ is put in press filtration or carry out liquid-solid separation with centrifuge after the drying, be incubated 20 minutes kiln discharges.

4, after the material cooling, carry out classification with pneumatic separator and handle, adopt grader and cyclopneumatic separator to tell the product of different grain size grade according to instructions for use.

Claims (1)

1. the renovation process of an aluminum fabrication plant production garbage diatomite filter aid waste residue is characterized in that selecting the diatomite waste residue of removing oil residues for use is raw material, and processing technology is as follows:

Because waste residue is often sneaked into other life and industrial refuse, handle so at first carry out removal of impurities,

1, wet concentration is at first put into swaging machine simultaneously with waste residue and water and is stirred scouring, removes more than the 100 μ m with hydrocyclone, and the following impurity of 3 μ m, the impurity that makes in the diatomite to be carried secretly separates with diatomite;

2, filter the above impurity of 100 orders with 100 eye mesh screens, stir scouring with swaging machine once more, remove pot bottom impurity after the sedimentation, cyclic washing is to neutrality, the soluble salt that is produced when thoroughly removing oil removing, residual acid, and residual aluminium powder and grease;

3, calcining kiln roasting to 850 ℃ is put in press filtration or carry out liquid-solid separation with centrifuge after the drying, be incubated 20 minutes kiln discharges;

4, after the material cooling, carry out classification with pneumatic separator and handle, adopt grader and cyclopneumatic separator to tell the product of different grain size grade according to instructions for use.