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Continuous fixed bed adsorption device and method

A fixed bed adsorption, screw conveyor technology, applied in the direction of solid adsorbent liquid separation, separation methods, chemical instruments and methods, etc., can solve the problems of inability to continuously operate, difficult to discharge silica gel, low processing efficiency, etc., to ensure adsorption. efficiency, reducing the cost of regeneration treatment, and ensuring the effect of oil yield

Pending Publication Date: 2022-04-15
ANHUI GUOFU LUBRICANT IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In waste lubricating oil regeneration technology, waste lubricating oil is distilled under reduced pressure, then added to NMP for extraction and refining treatment, and then adsorbed and extracted by silica gel and other adsorbents to obtain regenerated base oil; and the commonly used silica gel adsorption device is a silica gel adsorption tower. The adsorption tower equipment occupies a large area, and it is difficult to discharge the relatively viscous silica gel after adsorption, and it cannot be operated continuously, resulting in low processing efficiency

Method used

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  • Continuous fixed bed adsorption device and method
  • Continuous fixed bed adsorption device and method
  • Continuous fixed bed adsorption device and method

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Embodiment 1

[0028] Such as Figure 1-2 As shown, a continuous fixed bed adsorption device includes a screw conveyor 1, and an oil inlet 2 connected to the screw conveyor 1, an oil outlet 3, a silica gel inlet 4 and a waste rubber outlet 5; wherein,

[0029] The screw conveyor 1 includes a body 7, a rotating shaft 8 which is arranged in the body 7 and drives the screw blade 6 to rotate, and a motor 9 which drives the rotation of the rotating shaft 8, and the screw blade 6 is bonded to the inner wall of the body 7; The screw conveyor 1 is arranged obliquely, and the screw blade 6 in its inner chamber is made up of a blade with holes 61 and a solid blade 62 connected to the two ends of the blade with holes 61; Composed of two layers, the wire mesh 612 is fixedly arranged on the side of the supporting orifice plate 611 close to the conveying direction of the screw conveyor 1, and the aperture of the supporting orifice plate 611 and the mesh aperture of the wire mesh 612 are smaller than the s...

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Abstract

The invention relates to a continuous fixed bed adsorption device and method. The continuous fixed bed adsorption device comprises a screw conveyor, and an oil inlet, an oil outlet, a silica gel inlet and a waste gel outlet which are connected to the screw conveyor, wherein the spiral conveyor is obliquely arranged, and a spiral blade in an inner cavity of the spiral conveyor is composed of a blade with a hole and solid blades connected to the two ends of the blade with the hole; silica gel enters the screw conveyer through the silica gel inlet and is conveyed to the waste gel outlet at the top end along the inclined inner cavity of the screw conveyer; base oil enters the machine body through the oil inlet and flows towards the oil outlet in the bottom end along the inclined inner cavity of the spiral conveyor, and the base oil is adsorbed and purified through silica gel in the flowing process. The spiral conveyor is obliquely arranged, the middle blade of the spiral blade is the blade with the hole, so that silica gel and base oil are conveyed, mixed and discharged oppositely, continuous purification of the base oil is achieved, the silica gel is conveyed obliquely and upwards, the oil draining effect can be achieved, and the oil yield of the base oil is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of lubricating oil regeneration, and in particular relates to a continuous fixed-bed adsorption device and method. Background technique [0002] At present, the recovery rate of waste lubricating oil in my country is very low. The waste lubricating oil can be recovered well by vacuum distillation-solvent refining method. [0003] In waste lubricating oil regeneration technology, waste lubricating oil is distilled under reduced pressure, then added to NMP for extraction and refining treatment, and then adsorbed and extracted by silica gel and other adsorbents to obtain regenerated base oil; and the commonly used silica gel adsorption device is a silica gel adsorption tower. The adsorption tower equipment occupies a large area, and it is difficult to discharge the relatively viscous silica gel after adsorption, and it cannot be operated continuously, resulting in low processing efficiency. Contents of the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D15/00C10G25/00
Inventor 汪绪武钱成李书龙
Owner ANHUI GUOFU LUBRICANT IND
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