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Adjustable high-efficiency sintering machine loosening device and use method

A technology of loosening and machine loosening is applied in the field of high-efficiency sintering machine loosening device, which can solve the problems of inability to adapt to the segregation of sintered materials, different water holding rates, inability to accurately preheat the mixture by heat source, and layered control.

Inactive Publication Date: 2021-07-06
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides an adjustable high-efficiency sintering machine loosening device and its use method, which solves the problem that the loosening device in the prior art is basically a fixed device. When there is a large change, due to its fixed position, the relative position of the loosening rod in the sintered material layer will change significantly, and the loosening effect and the airflow distribution state of the sintered material layer will be weakened to a certain extent. The heat source preheating mixture cannot be controlled accurately and layered, and cannot adapt to the segregation of sintered materials, the different water holding rates of each layer, and the precise control of preheating under the migration of the over-humidity zone, which leads to the weakening of the effect of improving the air permeability of the material layer.

Method used

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  • Adjustable high-efficiency sintering machine loosening device and use method
  • Adjustable high-efficiency sintering machine loosening device and use method

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Embodiment

[0036] Taking the sintering of 900mm thick material layer as an example, the height automatic adjustment function of this loosening device is described in detail: the distance between the three layers of loosening rods is set to 200mm between the upper and middle layers, and the distance between the middle and lower layers of loosening rods It is 250mm, and the thickness of the sintered cloth is automatically detected by the layer thickness meter. During normal production, the thickness of the material layer is 900mm, and the distance between the upper loose material rod and the top surface of the material layer is 200mm. At this time, the stroke of the hydraulic cylinder is recorded as L0. When the material layer is reduced from 900mm to 700mm, the cylinder stroke is (h-450) / 2. That is, the displacement of 125mm is retracted, and L1=-125mm at this time, so as to realize the overall movement of the movable box 109 and the loose material rods 106 of each layer. And the distanc...

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Abstract

The invention discloses an adjustable high-efficiency sintering machine loosening device and a use method, and relates to the technical field of smelting equipment. The adjustable efficient sintering machine loosening device comprises a supporting base, wherein a movable box body is fixedly arranged at the top of the supporting base through a hydraulic oil cylinder, fixed sliding grooves are formed in the two sides of the movable box body, and partition plates and drainage devices are arranged on the fixed sliding grooves. According to the adjustable efficient sintering machine loosening device and the use method, accurate layered control over preheating of a sintering mixture through loosening rods is achieved, so that the layered uniform preheating effect under the action of segregation of a sintering material, different water holding rates of the layers and migration of an over-wet belt is achieved, the air permeability of the sintering material layer can be obviously improved, and relatively reasonable spatial gradient distribution of the loosening rods in the sintering material layer is kept, so that a temperature field in the sintering material layer is more uniform, an over-wet layer is more uniform, and uniform development of a subsequent sintering process is promoted.

Description

technical field [0001] The invention relates to the technical field of smelting equipment, in particular to an adjustable high-efficiency sintering machine unwinder device and a use method. Background technique [0002] The sintering looser is a device to improve the air permeability of sintering. Its principle is to use the effect of converging and then diverging the airflow distribution caused by the pores in the raw material to improve the airflow distribution during the sintering exhaust process, especially for finer particle sizes. The sintering process based on iron-containing material has a very significant effect, which can improve the air permeability of the sintered material layer, improve the quality of sintered ore, and play a great role in improving the sintering production and quality indicators. [0003] In the prior art, the general sintering loosening device is mainly composed of a fixing device and multi-layer fixed or detachable loosening rods, wherein the...

Claims

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Application Information

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IPC IPC(8): F27B21/08
CPCF27B21/00F27D3/00F27M2003/04
Inventor 戚义龙阿中杨陶洪永年樊晶莹
Owner MAANSHAN IRON & STEEL CO LTD
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