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System for continuously measuring permeability of sintered mixture and measuring method thereof

A technology of sintering mixture and air permeability, which is applied in the field of metallurgical sintering, can solve the problem that the sintering mixture cannot be continuously measured online, and achieve the effect of convenient operation, simple system structure and guaranteed accuracy

Pending Publication Date: 2020-11-13
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem that the sintering mixture cannot be continuously measured on-line in the prior art, and provide a system and a measurement method for continuously measuring the gas permeability of the sintering mixture; the present invention is equipped with a detection unit at the head of the sintering machine, through The gas pressure measuring instrument installed in each branch pipe of the detection unit measures the pressure in the corresponding pipe, and finally obtains the air permeability of the tested mixture. The whole system has a simple structure and is easy to operate.

Method used

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  • System for continuously measuring permeability of sintered mixture and measuring method thereof
  • System for continuously measuring permeability of sintered mixture and measuring method thereof
  • System for continuously measuring permeability of sintered mixture and measuring method thereof

Examples

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Embodiment 1

[0035] A system for continuously measuring the air permeability of the sintering mixture in this embodiment includes a mine tank 10, a distributor 20, and a sintering machine, wherein the sintering machine includes a sintering trolley, a monolithic board 41, a fan 42, an ignition furnace 43, and a fence 44 , combined with figure 1 and figure 2 , the mine tank 10 is used to store the mixed material 30, and the mixed material 30 is sent to the distributor 20 through the feeder 11 at the bottom of the mine tank 10, and the mixed material 30 is evenly transported to the sintering trolley by the distributor 20, and the whole Under the action of the material plate 41, the uniformity of the height of the mixture 30 is ensured.

[0036] It is worth noting that the distributor 20 of this embodiment adopts a nine-roller distributor, and the distributor 20 is installed obliquely, and under the action of the star wheel 40 of the sintering trolley, the mixture 30 is evenly distributed on...

Embodiment 2

[0051] A system for continuously measuring the gas permeability of the sintering mixture in this embodiment is basically the same as that in Embodiment 1. Furthermore, in this embodiment, the air outlet of the branch pipe 53 is arranged obliquely, and its inclination direction faces the platform of the sintering trolley, such as figure 1 As shown, the inclination angle is α, and 0<3α≤35°, which can be 10°, 15°, 20°...25° or 35°.

[0052] Preferably, the inclination angle α is 35°.

[0053] Since the mixture 30 is distributed to the table top of the sintering trolley by the distributor 20, the mixture falls onto the table from above, and one end of the branch pipe 53 is inserted into the mixture 30, the present embodiment controls the inclination The size of the angle and the angle of inclination make the mixture 30 pile up on the table surface, it will not have an effect on the air outlet of the branch pipe 53, thereby reducing the impact on the detection results as much as po...

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Abstract

The invention discloses a system for continuously measuring the permeability of a sintered mixture and a measuring method thereof, which belong to the technical field of metallurgical sintering. The system comprises an ore tank, a distributing device and a sintering machine, a detection unit is arranged at the head of the sintering machine, the detection unit comprises an air blower, a main pipe and branch pipes, one end of the main pipe is communicated with the air blower, the other end of the main pipe is communicated with the two branch pipes, the two branch pipes are arranged along the vertical direction, one end of each branch pipe is inserted into the mixture, and a gas pressure measuring instrument is arranged in each branch pipe. The detection unit is arranged at the head of the sintering machine, the gas pressure measuring instruments installed in the branch pipes of the detection unit are used for measuring the pressure in the corresponding pipelines, the permeability of thedetected mixture is finally obtained, the whole system is simple in structure and convenient to operate, and continuous detection of the permeability of the mixture can be achieved.

Description

technical field [0001] The invention relates to the technical field of metallurgical sintering, in particular to a system for continuously measuring the air permeability of sintering mixtures and a measuring method thereof. Background technique [0002] The sintering process is to mix the sintering batch materials (complexes of iron ore powder, flux, solid fuel, ore return, etc.) with an appropriate amount of water, mix and granulate them into a mixture, and then spread them on the sintering trolley. Under the action of draft, the solid fuel in the surface mixture is ignited and high-temperature physical and chemical (sintering) reactions are carried out from top to bottom, so that the mixture is transformed into sintered ore. [0003] During the sintering process, the gas flow status and changing law in the sintering mixture layer are related to the mass transfer, heat transfer and physical and chemical reactions of the sintering process, so it has a great impact on the out...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
CPCG01N15/0826G01N15/0806
Inventor 余正伟罗云飞龙红明周江虹熊大林张晓萍春铁军孙社生雷杰杨涛汪名赫丁龙刘山平戚义龙
Owner MAANSHAN IRON & STEEL CO LTD
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