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Semi-coke gas multifuel combustion furnace

A heating furnace and gas technology, which is used in coke ovens, special forms of dry distillation, petroleum industry, etc. Low consumption and small dust effect

Inactive Publication Date: 2011-03-23
辽宁成大能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in these methods, the dust content in the flue gas is large, the metal wear is large, the post-processing device is large, and the energy consumption is also large.
At present, there is no method of co-firing low calorific value semi-coke and gas to heat circulating gas at home and abroad.

Method used

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  • Semi-coke gas multifuel combustion furnace
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Embodiment Construction

[0008] Semi-coke gas mixed-firing heating furnace, including chain furnace and fuel gas supply pipe, is characterized in that the lower part of the furnace 5 is a chain grate 9 that rotates and feeds in semi-coke, and the side wall of the furnace 5 is connected to the inner cavity of the tubular heat exchanger 8 Connected to the flue gas inlet 4 produced by the co-combustion of gas and semi-coke, the end of the inner cavity of the tubular heat exchanger 8 is provided with a flue gas outlet 1, and the gas circulation channel is between the shell of the tubular heat exchanger 8 and the inner cavity. A hot gas outlet 3 is arranged on one side of the flue gas inlet 4, and a cold gas inlet 2 is arranged at the tail. A hopper 7 is arranged on one side of the furnace body, and a water-sealed slag pool and a scraper conveyor are arranged at the rear of the chain furnace.

[0009] The heating furnace structure shown in the accompanying drawings can effectively ensure the realization of...

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Abstract

The invention provides a device which heats circular methane during the dry distillation process of oil shale and is characterized in that smoke which is generated by the mixed burning of semi-coke and methane is used to heat the circular methane to a temperature of about 500 DEG C; the device can sufficiently use the thermal value of fixed carbon in the semi-coke of dry distilled byproducts, thus solving the problem that low-grade oil shale can not use the full circulation dry distillation process and the semi-coke with low thermal value can not be utilized effectively. The device is applicable for distilling the oil shale which has various grades and uses full circulation dry distillation process, saves the energy and protects the environment, and has small dust and low energy dissipation.

Description

technical field [0001] The invention relates to a device for heating circulating gas in an oil shale dry distillation process. Background technique [0002] At present, in the oil shale carbonization process, it is generally believed that the gas full circulation process is the most advanced process in the world, but this process is not suitable for oil shale with low volatile content. The reason is that the heat generated by burning the oil-recovered gas cannot meet the heat demand of the carbonization furnace. However, the oil content of most shales in my country is lower than 7%, which restricts the use of this process. Therefore, the popular Fushun furnace and Shaanxi square furnace do not use the full cycle process, but use internal combustion or semi-internal combustion retort furnaces, so that the oil recovery rate is lower than 70%, which is very uneconomical and wastes resources. In addition, the calorific value of semi-coke produced by internal combustion or semi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B53/06
Inventor 吴启成张卫军王鸿治邢科
Owner 辽宁成大能源科技有限公司