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Waste heat utilizing loop-closing system of industrial furnace with producer gas as fuel

A technology for producing furnace gas and industrial furnaces and kilns, which is used in furnaces, waste heat treatment, furnace components, etc. to achieve high output, improve thermal efficiency of gasification, and improve thermal efficiency.

Inactive Publication Date: 2005-10-12
侯英武 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To solve the problem of industrial furnace waste heat utilization

Method used

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  • Waste heat utilizing loop-closing system of industrial furnace with producer gas as fuel

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Embodiment Construction

[0007] from figure 1 It can be seen that two heat exchangers are installed in series in the flue 9 outside the furnace 1 of the industrial furnace 1 burning hot dirty gas. The exchanger 8 exchanges heat. The hot air generated by the high-temperature heat exchanger 7 enters the industrial furnace for combustion, and the hot air generated by the low-temperature heat exchanger 8 enters the gasifier 2 as a gasification agent. The steam produced by the industrial furnace 1 adopts the vaporization cooling method to enter the sub-cylinder 4 from the steam drum 3; Saturated air enters the coal gasifier 2 as a gasifying agent, reacts with charcoal to generate hot dirty gas with high calorific value, and sends it to the hot dirty gas burner 10, and the industrial furnace uses a blower 5 to blow normal-temperature air into the high-temperature heat exchanger 7 , the preheated air enters the hot dirty gas burner 10 to support combustion, and the high-temperature flue gas produced enters...

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Abstract

The invention relates to a waste heat utilizing loop-closing system of industrial furnace with producer gas as fuel. The gas generator applies the saturated air mixed by the normal temperature air and steam as gasification agent. The produced gas by the method has a low heat value, a low temperature and a low pressure. The combustion-supporting air blown by industrial furnace is preheated that it is able to improve the heating quality of the further. The invention makes the high temperature gas in the industrial furnace flue exchange heat with two heat exchangers. The produced heat air is respectively infused to the industrial furnace for supporting combustion and to the gas generator as gasification agent. The hot steam or hot water produced by the industrial furnace cooling medium may being the gasification agent of the gas generator. The system can largely decreases the energy consumption of the industrial furnace and increases the gasification heat efficiency of the gas generator.

Description

1. Technical field: [0001] The invention relates to the technical field of waste heat utilization, in particular to a closed-loop system for waste heat utilization of industrial kilns using producer gas as fuel. 2. Background technology: [0002] At present, industrial furnaces that use producer gas as fuel mainly include two parts: one is the conventional gas producer, which uses normal temperature air and water vapor to form saturated air as a gasification agent, which is produced by the interaction with hot charcoal in the producer furnace. Furnace gas, this kind of gas has low calorific value, low temperature and low pressure. The second is that the industrial furnace is fed with gas and air mixed and then burned to heat the workpiece. There is no organic connection between these two parts, so that the waste heat of industrial kilns fueled by producer gas is not fully utilized. 3. Contents of the invention: [0003] The purpose of the present invention is to provide ...

Claims

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Application Information

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IPC IPC(8): F27D17/00
Inventor 侯英武赵晓雯赵晓波
Owner 侯英武
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