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Bidirectional oxygen-enriched continuous etherealization process for atmospheric fixed bed gas furnace

A gas furnace and fixed bed technology, applied in fixed bed gasification and other directions, can solve the problems of heat energy loss, unreasonable process flow, etc., and achieve the effect of full thermal energy, full utilization, and no energy waste.

Inactive Publication Date: 2009-03-25
江西昌昱实业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to overcome defects such as unreasonable process flow and loss of heat energy in the prior art, the purpose of the present invention is to provide an atmospheric fixed bed gas furnace that can utilize more extensive coal resources, reduce equipment costs, and make full use of heat energy. Process of two-way oxygen-enriched continuous gasification

Method used

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  • Bidirectional oxygen-enriched continuous etherealization process for atmospheric fixed bed gas furnace

Examples

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Effect test

Embodiment 1

[0018] As shown in Figure 1, the steps of bidirectional oxygen-enriched continuous gasification include:

[0019] A. Oxygen-enriched air with a concentration of 50%-65% and a pressure of 25Kpa-40Kpa enters the oxygen-enriched air main pipe 1, and steam with a pressure of 40Kpa-80Kpa enters the superheated steam main pipe 2.

[0020] B. The gas furnace is in the upward gas production stage of oxygen-enriched continuous gasification: oil pressure program-controlled valve 3, oil pressure program-controlled valve 4, oil pressure program-controlled valve 5, oil pressure program-controlled valve 6 are opened, the concentration is 50%-65% and the pressure is 25Kpa Oxygen-enriched air at -40Kpa and steam with a pressure of 40Kpa-80Kpa enter the jet mixer 7 for mixing, and then enter the gas furnace 8 through the oil pressure program control valve 5 and oil pressure program control valve 6 for gasification to generate coal gas, which is then fed to the gas furnace After the road 9 ente...

Embodiment 2

[0022] As shown in Figure 1, the steps of bidirectional oxygen-enriched continuous gasification include:

[0023] A. Oxygen-enriched air with a concentration of 50%-65% and a pressure of 25Kpa-40Kpa enters the oxygen-enriched air main pipe 1, and steam with a pressure of 40Kpa-80Kpa enters the superheated steam main pipe 2.

[0024]B. The gas furnace is in the upward gas production stage of oxygen-enriched continuous gasification: oil pressure program-controlled valve 3, oil pressure program-controlled valve 4, oil pressure program-controlled valve 5, oil pressure program-controlled valve 6 are opened, the concentration is 50%-65% and the pressure is 25Kpa Oxygen-enriched air at -40Kpa and steam with a pressure of 40Kpa-80Kpa enter the jet mixer 7 for mixing, and then enter the gas furnace 8 through the oil pressure program control valve 5 and oil pressure program control valve 6 for gasification to generate coal gas, which is then fed to the gas furnace After the road 9 enter...

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Abstract

The invention relates to a technology for converting coal gas into furnace gas, in particular to a technology of two-way oxygen enrichment continuous gasification of an atmospheric fixed-bed gas stove. The invention aims at providing the technology of the two-way oxygen enrichment continuous gasification of the atmospheric fixed-bed gas stove which can use wider coal resources, reduce equipment cost and fully take use of heat energy. A method of changing ascending gas production into descending gas production and changing the descending gas production into the ascending gas production in an oxygen enrichment gasification technical process, using methods of a plurality of valves and a method for forming air seal to cut off gas are described in details. Compared with the prior art, the technology has the advantages as follows: 1. some coal with wider distribution but lower price can become gasification coking coal with enrichment oxygen; 2. the temperature of the coal bed of the atmospheric fixed-bed gas stove and the temperature on the stove can be effectively controlled, and the operation period of the relevant equipment on the upper part of the gas stove can be extended by one year after the temperature on the gas stove is reduced from 650 DEG C to 450 DEG C; and 3. the heat energy can be used more sufficiently without wasting energy.

Description

technical field [0001] The invention relates to a gasification process of a gas furnace, in particular to a bidirectional oxygen-enriched continuous gasification process of an atmospheric fixed bed gas furnace. Background technique [0002] The existing oxygen-enriched continuous gasification technology in an atmospheric fixed bed gas furnace was adopted in my country in the 1960s. It is modified by engineering and technical personnel of Chinese enterprises according to the oxygen-enriched continuous gasification technology of foreign Lurgi furnaces, and is used in fixed-bed gas furnaces at atmospheric pressure. At present, there are about 50 atmospheric fixed gas furnaces in my country using oxygen-enriched continuous gasification technology. This technology has basically not developed significantly since the 1960s. The characteristics of this technology are: atmospheric fixed bed gas furnace oxygen enrichment Compared with the same type of gas furnace in the batch gasifica...

Claims

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Application Information

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IPC IPC(8): C10J3/06
Inventor 赵乐群郑元伦郑小伦
Owner 江西昌昱实业有限公司