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Low negative pressure ignition control device and method

A technology of ignition control and low negative pressure, applied in the direction of furnace control devices, furnace types, furnaces, etc., can solve problems such as not being able to meet the applicant's production needs, and achieve the effects of saving ignition energy consumption, simple structure, and reducing gas consumption

Active Publication Date: 2017-03-22
MAANSHAN IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The existing low negative pressure ignition control device for the sintering machine cannot meet the applicant's production needs

Method used

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  • Low negative pressure ignition control device and method
  • Low negative pressure ignition control device and method
  • Low negative pressure ignition control device and method

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Embodiment Construction

[0026] The specific implementation manner of the present invention will be described in further detail below by describing the best embodiment with reference to the accompanying drawings.

[0027] Such as Figure 1 to Figure 3 As shown, this kind of low negative pressure ignition control device includes a sintering machine trolley 1, a first wind box 2 and a second wind box 7 arranged under the sintering machine trolley 1, and the first wind box 2 is located directly below the igniter of the sintering machine ; The first bellows 2 and the second bellows 7 are connected with the bellows elbow 4, and the bellows elbow 4 is connected with the bellows riser 5; the bellows elbow 4 is provided with an electric butterfly valve 6; the first bellows 2 is provided with a cross section And the spoiler 3 that all is wedge-shaped in longitudinal section.

[0028] The baffle plate 3 is arranged in the first air box 2 directly below the igniter, and is a wedge-shaped plate along the length ...

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Abstract

The invention discloses a low negative pressure ignition control device and method. The control device comprises a sintering machine trolley, a first air bellow and a second air bellow, wherein the first air bellow and the second air bellow are arranged below the sintering machine trolley. The first air bellow is located under an igniter of a sintering machine. The first air bellow and the second air bellow are each connected with an air bellow bent pipe. The air bellow bent pipes are each connected with an air bellow vertical pipe. An electric butterfly valve is arranged on each air bellow bent pipe. A baffle plate with the cross section and the longitudinal section both in a wedge shape is arranged in the first air bellow. According to the control method, the low negative pressure ignition control device is utilized for achieving control over the negative pressure in a hearth of an ignition furnace. In the low negative pressure ignition control device and method, the baffle plate is combined with adjustment of the opening degrees of the electric butterfly valves, flexible adjustment of the negative pressure in the hearth of the ignition furnace can be achieved, and coal gas consumption can be reduced. According to the negative pressure ignition control device, the negative pressure of the ignition air bellows and the negative pressure of the hearth can be flexibly and effectively controlled, normal proceeding of the sintering process is kept, ignition energy consumption is reduced, the structure is simple, and cost is low.

Description

technical field [0001] The invention relates to the field of iron ore sintering in the metallurgical industry, in particular to a low negative pressure ignition control device and method for a belt sintering machine. Background technique [0002] In the sintering process, in order to provide enough heat to the surface layer of the mixture to make the solid fuel in it ignite and burn, it needs to be ignited by an igniter located above the sintered material surface. Under the action of the draft, a certain negative pressure is ensured on the surface of the sintered material, so that the sintering process continues from top to bottom. The level of ignition negative pressure determines the degree of compaction of the sinter mixture bed, which in turn affects the thermal gas permeability during the sintering process, and finally affects the quality of sintered ore, and directly determines the ignition consumption level of sintered ore. [0003] Years of sintering production expe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B21/14
CPCF27D19/00F27D2019/0009
Inventor 李小静张晓萍刘英才张永中曹建民
Owner MAANSHAN IRON & STEEL CO LTD
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