Double-fan combined type dynamic powder concentrator and technological system thereof

Abstract

The invention discloses a double-fan combined type dynamic powder concentrator and a technological system thereof. The double-fan combined type dynamic powder concentrator comprises a combined type powder concentrator, cyclones and two fans; the combined type powder concentrator comprises feeding ports, a dynamic material sprinkling disc, an inner cone body, a static material sprinkling disc, a fluidized bed and a shell body; the dynamic material sprinkling disc is located under the feeding ports, the static material sprinkling disc is connected with a bottom outlet of the inner cone body, andthe fluidized bed is located under the static material sprinkling disc; the bottom of the shell body is provided with a coarse powder outlet, the two sides of the lower portion of the shell body areprovided with two air inlets, and the upper portion of the shell body is provided with a fine powder outlet; and the cyclones are symmetrically arranged on the two sides of the combined type powder concentrator, the two fans are located on the two sides of the combined type powder concentrator, the fine powder outlet is connected with a corresponding cyclone feeding port, a cyclone air outlet is connected with an air inlet of the fan on the corresponding side, and two fan air outlets are connected with shell body air inlets on the corresponding sides. According to the double-fan combined typedynamic powder concentrator and the technological system thereof, the problems that in a single-fan powder concentrator and system, flow field distribution is not uniform, the pressure loss is slightly high, the powder concentration efficiency is slightly low, and air pipe dust deposition is serious are solved.

Description

technical field [0001] The invention belongs to the technical field of material separation, in particular to a dual-fan combined dynamic powder separator and a process system thereof. Background technique [0002] In the mineral crushing and sorting process, the main fan of the powder material separator supporting the grinding equipment (tube mill) adopts a single fan, and the common form of side air inlet is represented by "O-Sepa separator". And the form of air intake from the lower side represented by the "internal circulation powder separator", the air supply of a single main fan will cause: [0003] (1) The "O-Sepa Powder Separator" adopts the form of side air inlet. The primary air and secondary air directly enter the guide vane of the powder separator along the volute from the side. Due to the short path and uneven primary and secondary air, Therefore, the flow field entering the guide blade is not uniform, and the powder selection efficiency is low; [0004] (2) Th...

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Problems solved by technology

[0008] Aiming at the problems existing in the prior art, the present invention provides a dual-fan combined dynamic powder separator and its process system, which solves the problems of uneven distribution of the flow field, high pressure loss, and powder separation problems in the single-fan powder separator and the system. Problems such as low efficiency and serious dust accumulation in air ducts

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