Self-preheating type sintering ignition furnace

A sintering point, self-preheating technology, used in furnaces, furnace types, lighting and heating equipment, etc., can solve problems such as consumption, multi-energy, low calorific value, etc., to increase contact area, ensure connection strength, and increase heat transfer. The effect of efficiency

Inactive Publication Date: 2015-10-07
ANHUI CHENGMING HEAT ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the fuel used in sintering furnaces is mostly coke oven gas, converter gas and blast furnace gas. Although the cost of blast furnace gas used by enterprises is low, the calorific value of blast furnace gas is low. For sintering requir...

Method used

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  • Self-preheating type sintering ignition furnace
  • Self-preheating type sintering ignition furnace
  • Self-preheating type sintering ignition furnace

Examples

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Embodiment Construction

[0021] Below with reference to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention, such as the shape, structure, mutual position and connection relationship between the various parts, the role and working principle of the various parts, etc., will be further described. detailed instructions.

[0022] Such as figure 1 As shown, the preheating sintering ignition furnace includes a sintering ignition furnace body 1 and a preheating furnace 2. The sintering ignition furnace body 1 and the preheating furnace 2 are arranged on the same trolley and are designed in an integrated manner, and the burner 3 is arranged at the sintering point. The raw material is sintered on the top of the furnace body 1 .

[0023] Such as Figure 2~3 As shown, it is a schematic diagram of the pipeline structure of the sintering ignition furnace. The cold gas enters the preheater 6 through the gas pipeline 4 and the cold gas inlet. Aft...

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Abstract

The invention discloses a self-preheating type sintering ignition furnace, and belongs to the field of sintering equipment. The sintering ignition furnace comprises a sintering ignition furnace body, a hot-air conveyer pipe, a gas pipeline and a preheating oven. One end of the hot-air conveyer pipe and one end of the gas pipeline are connected at a burner of the sintering ignition furnace body. The other end of the hot-air conveyer pipe and the other end of the gas pipeline are connected on the preheating furnace. According to the invention, double-pipe heat exchangers are arranged at a holding zone of the ignition furnace, and each double-pipe heat exchanger has a double-layer heat exchange structure, so that the contact area of air or gas and the holding zone is increased, the air or gas can be fully preheated in the heat exchangers, and the heat exchange efficiency is increased; each double-pipe heat exchanger is internally provided with multiple enclosed spaces isolating the hot air and cold air, so that circulation heat exchange efficiency is high; and heat exchange matrixes can be flexibly assembled according to actual demands, and reinforcement pull bars are arranged at connecting portions of the heat exchange matrixes so as to guarantee the connection strength.

Description

technical field [0001] The invention relates to the field of sintering equipment, in particular, the invention relates to a self-preheating sintering ignition furnace. Background technique [0002] Sintering is an important part of the metallurgical industry, especially the iron and steel smelting process, and it is also one of the key operations that affects the energy consumption index of the entire smelting process. Sintering is a processing method to provide "concentrate" for blast furnace smelting. Its essence is to prepare various raw materials (concentrate, mineral powder, fuel, flux, return ore, etc.) according to a certain proportion, mix them with Granulating to obtain the sintered material that meets the requirements. After the sintered material is ignited, it will generate high temperature through the combustion of carbon and the oxidation of iron minerals, so that part of the components in the sintered material will soften and melt, and a certain amount of liqu...

Claims

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Application Information

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IPC IPC(8): F27B21/08
Inventor 丁长永薛华飞
Owner ANHUI CHENGMING HEAT ENERGY TECH
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