Sintering machine grate anti-paste and anti-block method

A technology of sintering machine and machine grate bar, applied in the field of sintering, can solve the problem of easy clogging of grate bar of sintering machine, and achieve the effects of reducing the passing grate bar, inhibiting grate bar sticking and reducing dust content.

Inactive Publication Date: 2017-12-22
SHOUGANG CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the technical problem that the grate bars of the sintering machine are easily blocked in the prior art by providing a method for preventing the grate bars of the sintering machine from sticking, so that the gaps between the grate bars of the sintering machine are unobstructed, the sintering production efficiency is improved, and the maintenance cost is reduced

Method used

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  • Sintering machine grate anti-paste and anti-block method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] In practical applications, when a sintering production line is in production, the specific implementation is as follows:

[0037] The chemical composition of each sintering raw material was tested to obtain the contents of K and Na elements in each sintering raw material, and the total amount of K and Na elements in the sintering mixture was controlled to be 1.0kg / t.

[0038] Adding a bulkhead in the first bottom bunker separates the first bottom bunker into a front bin and a rear bin. Assemble the first primer in the front warehouse, the first primer is sintered ore; the particle size of the first primer is 12-20mm; assemble the second primer in the rear warehouse, the second primer is sintered ore; the second The particle size of the bottom layer is 5-12mm. Lay the first primer on the grating bar of the sintering machine before opening the warehouse, and control the laying thickness of the first primer to be 50mm; after opening, lay the second primer on the first pri...

Embodiment 2

[0041] In practical applications, when a sintering production line is in production, the specific implementation is as follows:

[0042] The chemical composition of each sintering raw material was tested to obtain the contents of K and Na elements in each sintering raw material, and the total amount of K and Na elements in the sintering mixture was controlled to be 1.5kg / t.

[0043] Add a second bottoming silo behind the first bottoming silo, transport the first bottoming material with a particle size of 12-30mm to the first bottoming silo, and transport the second bottoming material with a particle size of 5-12mm to the second Bottom silo.

[0044] Lay the first bottoming material on the sintering machine grate bar before opening the warehouse, the first bottoming material is sintering ore; control the laying thickness of the first bottoming material to 40mm; after opening, lay the second bottoming material on the first bottoming material, the second bottoming material The s...

Embodiment 3

[0047] In practical applications, when a sintering production line is in production, the specific implementation is as follows:

[0048] The chemical composition of each sintering raw material was tested to obtain the contents of K and Na elements in each sintering raw material, and the total amount of K and Na elements in the sintering mixture was controlled to be 1.5kg / t.

[0049] Adding a bulkhead in the first bottom bunker separates the first bottom bunker into a front bin and a rear bin. Assemble the first primer in the front warehouse, the first primer is sintered ore; the particle size of the first primer is 12-20mm; assemble the second primer in the rear warehouse, the first primer is sintered ore; the second The particle size of the bottom layer is 5-12mm. Lay the first bottoming material on the sintering machine grate bar before opening the warehouse, the first bottoming material is sintering ore; control the laying thickness of the first bottoming material to 50mm;...

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Abstract

The invention relates to the technical field of sintering, in particular to a sintering machine grate anti-paste and anti-block method which comprises the following steps: controlling the total quantity of elements K and Na in a sintering mixture not greater than 1.5kg/t; paving a first grate-layer material on a sintering machine grate and paving a second grate-layer material on the first grate-layer material, wherein the particle size of the second grate-layer material is smaller than that of the first grate-layer material; and reducing the negative pressure of 3-5 air boxes in font of the final point by 10-30%. With adoption of the sintering machine grate anti-paste and anti-block method, the dust content of exhaust gas at a drying high-temperature section is reduced, number of particulate matters penetrating through the grate is reduced, and generation of the grate pasting and blocking phenomenon is restrained.

Description

technical field [0001] The invention relates to the technical field of sintering, in particular to a method for preventing grating bars of a sintering machine from sticking. Background technique [0002] The sintering mixture is mainly exhausted from top to bottom through the gap of the grate to complete the sintering process. After a period of use, the gap between the grate is often blocked by the sintering mixture, bottoming material and dust, and due to the high content of K and Na elements in the sintering mixture , During the sintering process, it will be converted into particles containing K and Na, and these particles will be bonded to the surface of the grate as the sintering flue gas passes through the grate, causing the gap between the grate to be blocked. Grate blockage will reduce the ventilation area of ​​the sintering machine, leading to an increase in the load of the main exhaust fan and a decrease in the air flow through the sintering material layer in the pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D25/00F27B21/08
CPCF27B21/00F27M2003/04
Inventor 马怀营裴元东潘文欧书海贾国利张海滨吴桂辑高新洲马泽军赵志星赵勇陈绍国
Owner SHOUGANG CORPORATION
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