Calcium carbide furnace gas calorific value adjustment device

A technology of adjusting device and calcium carbide furnace, which is applied in the direction of modification of mixed gas with other gases, etc., can solve problems such as hidden dangers of process production safety, inability to meet the needs of downstream process production heating, and low calorific value level.

Inactive Publication Date: 2017-06-20
BAOTOU ENG & RES CORP OF IRON & STEEL IND CHINA METALLURGY CONSTR GROUP BERIS
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the calorific value of calcium carbide furnace gas is 2000kcal/m 3 ~2400kcal/m 3 Between, the level of calorific value is low, often cannot meet the heating demand of downstream process production, especially at the lower l

Method used

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  • Calcium carbide furnace gas calorific value adjustment device

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Embodiment Construction

[0019] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

[0020] figure 1 It is a schematic structural diagram of a calorific value adjustment device for calcium carbide furnace gas according to an embodiment of the present invention, as shown in figure 1 As shown, the calorific value adjustment device for calcium carbide furnace gas includes: a gas mixing unit 1, a gas delivery unit 2, a natural gas injection unit 3, a nitrogen injection unit 4, a gas calorific value detector 5 and a control system. Wherein, the entrance of gas mixing unit 1 is used to receive calcium carbide furnace gas and natural gas, and its effect is to mix calcium carbide furnace gas and natural g...

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Abstract

The invention relates to a calcium carbide furnace gas calorific value adjustment device. The device comprises a gas mixing unit, a gas delivery unit, a natural gas injection unit, a nitrogen injection unit, a gas calorific value detector and a control system. The gas mixing unit is used for receiving and mixing calcium carbide furnace gas and natural gas. When a detection value of the gas calorific value detector exceeds a standard range, the control system controls the nitrogen injection unit so that the nitrogen injection unit injects nitrogen gas into the gas delivery unit and gas output by the gas delivery unit has a calorific value in the standard range, and when a detection value of the gas calorific value detector is lower than the lowest value in the standard range, the control system controls the natural gas injection unit so that the natural gas injection unit injects natural gas into the gas delivery unit and gas output by the gas delivery unit has a calorific value in the standard range. The device can stabilize a calorific value of the calcium carbide furnace gas and reduce the influence of the fluctuation of the calorific value of the downstream equipment when using the calcium carbide furnace gas.

Description

technical field [0001] The invention belongs to the field of gas application, and in particular relates to a calorific value adjustment device for calcium carbide furnace gas. Background technique [0002] In the production process of ferroalloy, calcium carbide furnace is mainly used to heat mixed minerals, and minerals generally produce a large amount of calcium carbide furnace gas during the heating process. The components of calcium carbide gas mainly include carbon monoxide, carbon dioxide, dust, trace amounts of oxygen, nitrogen and so on. Among them, the content of carbon monoxide fluctuates greatly, generally between 60% and 80%, resulting in large fluctuations in the calorific value of calcium carbide furnace gas. [0003] When the calcium carbide furnace gas is first generated, the temperature can reach 2000°C, and after cooling and dust removal, the temperature will generally drop to about 60°C. At this time, the calorific value of calcium carbide furnace gas is...

Claims

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Application Information

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IPC IPC(8): C10K3/06
CPCC10K3/06
Inventor 岳雷
Owner BAOTOU ENG & RES CORP OF IRON & STEEL IND CHINA METALLURGY CONSTR GROUP BERIS
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