A dense phase gas-solid fluidized bed dry separation system and process

Abstract

The invention discloses a dry sorting system and a dry sorting technology for a concentrated-phase gas-solid fluidized bed, belonging to the technical field of dry-method mineral processing. According to the dry sorting machine for the concentrated-phase gas-solid fluidized bed, a pre-air distribution chamber is divided into multiple separate single-chambers; a pre-distribution device and an assembly-type easy-to-detach anti-clogging wear-resisting air distribution plate are arranged in each single-chamber; float kicking wheels are longitudinally arranged along the sorting machine, and are used for leading fed materials to move longitudinally along the main machine; a bucket-type discharging machine is integrally arranged in an oblique manner; a mesh bag-type sediment discharging scraper machine is arranged on the lower part of the sorting machine, and plate meshes are supported by scraping plates, so that the mesh bag-type sediment discharging scraper machine is integrally connected onto conveying chains which move parallelly; a horizontal screw conveyor is located at the tail end of the oblique section of the mesh bag-type sediment discharging scraper machine which is located at the sediment discharging end of the main machine; and a float discharging mechanism and a sediment discharging mechanism work separately, so that the operation flexibility of the sorting machine is increased, and the sorting effect is improved. The dry mineral separation equipment is assembled on the same platform, so that the dry sorting system for the concentrated-phase gas-solid fluidized bed is established; the performance is stable; the operation cost is low; the operation is easy; the dry sorting system is environment-friendly and high-efficient; and problems in dry sorting and quality improving of minerals with different densities are solved.

Description

Technical field [0001] The invention relates to a dry mineral processing equipment and method, in particular to a dense phase gas-solid fluidized bed dry separator, a separation system and a process. Background technique [0002] At present, in the field of mineral processing, wet beneficiation technology (flotation, wet heavy medium separation, wet jigging, etc.) dominates the world. However, wet beneficiation requires a lot of water in the separation process, but the shortage of water resources and water shortage have become indisputable facts worldwide. In addition, a large amount of waste water is prone to be produced in the wet process of beneficiation, causing serious environmental pollution. Under such a premise, wet beneficiation is constrained, and dry separation technology for non-aqueous environmental operations has received increasing attention from various countries. It is urgent to carry out research on key technologies for efficient dry beneficiation. [0003] The ...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a dense-phase gas-solid fluidized bed dry separation system with stable performance, high separation accuracy, low operating cost, easy operation, environmental protection and high efficiency, to solve The problem that minerals cannot be efficiently and stably separated in the existing dry dense media beneficiation technology

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