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Material falling method and device

A cutting and material technology, applied in conveyor control devices, loading/unloading, transportation and packaging, etc., can solve problems affecting sinter quality and production efficiency, etc.

Active Publication Date: 2020-12-15
武汉钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the prior art, the embodiment of the present invention provides a blanking method and device, which are used to solve the problem that in the prior art, in the sintering process, the quality of the sintered ore and the production will be affected if the blanking occurs or the blanking is not smooth. technical issues of efficiency

Method used

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Embodiment 1

[0045] This embodiment provides a blanking method, which is applied in a blanking mechanism. In order to understand the technical solution of the present invention more clearly, the structure of the blanking mechanism is introduced here. Such as figure 1 As shown, the blanking structure includes: batching ore trough 1, vibrator 2, outlet gate valve 3, screw feeder motor 4, screw feeder 5, belt weighing machine 6, pressure sensor 7, flow meter 8. Belt weighing machine motor 9, belt weighing machine frequency converter 10, screw feeder frequency converter 11, controller 12, upper computer 13 and speed sensor 14; among them,

[0046]The batching trough 1 is used for loading materials, and the materials can be powder materials such as quicklime. Due to the characteristics of this material, it is easy to have the phenomenon of material accumulation and fluffing. The discharge port gate valve 3 is installed below the batching ore tank 1, and is used to control the flow of material ...

Embodiment 2

[0079] This embodiment provides a blanking device, such as image 3 As shown, the device includes: a first control unit 31, a second control unit 32 and a third control unit 33; wherein,

[0080] The first control unit 31 is used to control the opening of the vibrator at intervals of a preset period when starting to unload, and control the working duration of the vibrator to be the preset first duration;

[0081] The second control unit 32 is used to obtain the first flow deviation corresponding to the first instantaneous flow rate of material discharge, and judge whether the first flow deviation satisfies the preset first deviation range; if the first flow deviation is determined If the first deviation range is not met, it is judged whether the vibrator is in the open state, and if it is determined that the vibrator is not in the open state, then control the vibrator to be open;

[0082] The third control unit 33 is used to obtain the second flow deviation corresponding to t...

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Abstract

The invention provides a material falling method and device. The discharging method comprises the steps that a vibrator is controlled to be started every other preset period, and the working durationof the vibrator is controlled to be a preset first duration; a first flow deviation corresponding to a first instantaneous flow of material falling is obtained; if it is determined that the first flowdeviation does not meet a first deviation range, the vibrator is controlled to be started; a second flow deviation corresponding to a second instantaneous flow of material falling is obtained, and acurrent batching scale is switched to a standby batching scale if it is determined that the second flow deviation does not meet a second deviation range; thus, the vibrator is started once every otherpreset period, a batching ore tank can be vibrated, and materials are prevented from being loosened or accumulated; if the second flow deviation still does not meet the second deviation range, switching to the standby batching scale is carried out; and in the way, the phenomena of material loosening and unsmooth material falling of the batching ore tank can be avoided, it is ensured that the material falling flow is always in a stable state, the sinter quality and the production efficiency are ensured, and the blast furnace ironmaking quality is ensured.

Description

technical field [0001] The invention belongs to the technical field of iron and steel sintering, and in particular relates to a blanking method and device. Background technique [0002] Belt batching scales are widely used in chemical industry, metallurgy, building materials, mining, electric power, port, food and other industries. In the sintering process, the belt batching scale is an important equipment for quantitative feeding control of bulk materials. Whether the belt batching scale can work normally directly affects the quality and output of sinter. [0003] Generally speaking, a sintering plant has multiple sintering workshops, and each workshop is generally equipped with powder materials, and the powder materials are fed by a belt batching scale in the form of a combination of a screw feeder and a belt weighing machine. . When the feeding of the batching ore trough is not smooth or there is no material to be lowered, the screw feeder will experience unstable feedi...

Claims

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Application Information

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IPC IPC(8): B65G65/44B65G65/40B65G43/10C22B1/16G01G23/01
CPCB65G65/44B65G65/40B65G43/10C22B1/16G01G23/01
Inventor 张铭周剑张建刚刘大明黄辉何勇冯军陈文龙肖俊陈天东
Owner 武汉钢铁有限公司
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