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Novel environment-friendly and safe heating device for burial pits and method

A technology of heating device and slow cooling pit, which is applied in the field of new environment-friendly and safe heating device, can solve problems such as difficult adjustment, hidden dangers of production safety, over-burning, etc., and achieve the effect of adjusting cooling speed, reasonable structure setting, and good heating effect

Active Publication Date: 2014-01-15
江苏派尔钢铁节能技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Direct combustion heating will not only heat the ingot mold unevenly, it is difficult to adjust, and the surface will be over-burned, which will seriously affect the product quality. Moreover, once the gas leaks or the flame is turned off, there will be serious production safety hazards

Method used

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  • Novel environment-friendly and safe heating device for burial pits and method

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Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1, with reference to figure 1 , a new type of environmentally friendly and safe heating device for slow cooling pits. The device is equipped with a hot blast stove 1 connected through a flue gas pipeline 2 and a fresh air heat storage heat exchanger 3. The fresh air heat storage heat exchanger 3 is connected with a smoke exhaust Pipeline 4, fresh air intake pipeline 5 and hot air pipeline 6, hot air pipeline 6 is provided with pressurizing device 10, and hot air pipeline 6 leads in the slow cooling pit 9, the heat in the slow cooling pit 9 The air pipeline 6 is provided with a number of air outlet nozzles 7; the slow cooling pit 9 is provided with a waste heat utilization pipeline 8 connected with the hot blast stove 1; the fresh air heat storage heat exchanger 3 is provided with a ceramic honeycomb heat storage body.

Embodiment 2

[0021] Embodiment 2, in the heating device described in Embodiment 1: the ceramic honeycomb regenerator is composed of a plurality of ceramic honeycomb units connected in series, and the equivalent diameters of the ceramic honeycomb cells of each ceramic honeycomb unit are different, according to the flue gas flow Orientation, the ceramic honeycomb units are arranged from large to small according to the equivalent diameter of the cells.

Embodiment 3

[0022] Embodiment 3, in the heating device described in Embodiment 2: a gap of 300-500 mm is left between each ceramic honeycomb unit.

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Abstract

The invention relates to a novel environment-friendly and safe heating device for burial pits. The novel environment-friendly and safe heating device is provided with an air heating furnace and a fresh air heat storage heat exchanger, wherein the air heating furnace and the fresh air heat storage heat exchanger are connected by a smoke gas pipeline; a smoke exhaust pipeline, a fresh air inlet pipeline and a hot air pipeline are connected on the fresh air heat storage heat exchanger; a pressurizing device is arranged on the hot air pipeline; the hot air pipeline is introduced into the burial pit, and the part of the hot air pipeline, positioned in the burial pit, is provided with a plurality of air outlet nozzles; the burial pit is provided with a waste heat utilization pipeline; and a ceramic honeycomb heat storage body is arranged in the fresh air heat storage heat exchanger. The invention also provides a method for heating by utilizing the heating device. The novel environment-friendly and safe heating device is reasonable in structure setting and good in heating effect. With the adoption of the novel environment-friendly and safe heating device, the cooling velocity of blank can be effectively adjusted, the problems of preheating and heating of an ingot mold, a water-cooled mold casting blank and a steel billet can be solved, and the problem of recycling of low heating value coal gas of a steel mill can be solved so as to achieve the purpose of safe, environment-friendly and clean production, meanwhile, the quality of steel products can be greatly improved.

Description

technical field [0001] The invention relates to a heating device, in particular to a novel environment-friendly and safe heating device for a slow cooling pit. The invention also relates to a method of heating using the aforementioned heating device. Background technique [0002] The steel ingot mold is a bulk ingot casting equipment that is necessary for die casting production and used for turnover. It has an important impact on the surface and internal quality of the steel ingot and the cost of the steel ingot. The heated ingot mold is of great significance to the surface quality of the final shaped steel ingot in special smelting; the preheating and heating of the billet before entering the heating furnace is a new technological requirement for rolling high-quality special steel in recent years; at the same time, in order to improve the heating The production efficiency of the furnace, the water-cooled die-cast steel billet needs to be hot-charged, heated to above 300 °C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D7/12
Inventor 秦爱虎杨峻王玉
Owner 江苏派尔钢铁节能技术有限公司