Winnowing device for removing fine particle dust of lime kiln, control method and lime kiln

Abstract

The invention discloses a winnowing device for removing fine particle dust of a lime kiln, a control method and the lime kiln. The winnowing device comprises a barrel, a rotary reflection plate type winnowing mechanism and an air inlet device. An air outlet is arranged at the top of the barrel, and a feeding opening is arranged on the upper portion of the barrel. The rotary reflection plate type winnowing mechanism comprises a rotary reflection grate plate arranged in the barrel, multiple air distribution holes are formed in the rotary reflection grate plate, one end of the rotary reflection grate plate is mounted on the side wall of the barrel, the other end of the rotary reflection grate plate is a free end, a rotary motor is mounted on the outer wall of the barrel, and the output end ofthe rotary motor is connected with the rotary reflection grate plate through a rotary coupling. The air inlet device is mounted on the lower portion of the barrel and located below the rotary reflection plate type winnowing mechanism, and the air inlet device is used for blowing airflow into the barrel. According to the winnowing removal device and the lime kiln, the existing problems that duringdischarging of the lime kiln, environment pollution is severe, and waste of ore fine resources is severe are solved effectively.

Description

technical field [0001] The invention relates to the technical field of lime production equipment, in particular to a winnowing device and control method for removing fine particle dust from a lime kiln, and a lime kiln. Background technique [0002] Lime is an important auxiliary raw material widely used in the metallurgical industry. In the sintering of ironmaking raw materials, ironmaking reduction process, molten iron pretreatment process and out-of-furnace refining process, lime is used as an additive to adjust the alkalinity of the charge, slagging and desulfurization, etc., which is of great importance to the smooth progress of ironmaking and steelmaking processes important role. [0003] The lime kiln is the core equipment in the lime production process. The raw limestone is heated to 1100°C in the lime kiln and calcined to produce the product lime. At present, the widely used lime kiln kiln type is mainly vertical kiln (see figure 1 ). Lime kiln production proces...

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a winnowing device and control method for removing fine particle dust from a lime kiln, and a lime kiln, so as to solve the problems of serious environmental pollution and serious waste of fine ore resources in the prior art when the lime kiln is discharged.

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