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Converter steam dome high/low water level automatic feedwater unit

A technology for automatic water supply and steelmaking converters, which is applied in the manufacture of converters, etc., can solve the problems of unsuitability to safety production and modern management requirements, difficulty in ensuring automatic control accuracy, out-of-synchronization, etc. Good effect

Inactive Publication Date: 2005-01-19
SHOUGANG CORPORATION
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AI Technical Summary

Problems solved by technology

However, regardless of the degree of automation of these four water supply methods, the common problems are: the predetermined water supply program and the control method of the drum water level cannot be adapted to each furnace in the steelmaking and blowing process, and the reason why the automatic control accuracy is difficult to guarantee, The water level change of the steam drum does not coincide with the actual blowing process of the converter, and the phenomenon of asynchrony occurs from time to time. For safety production, the steelmaking plant usually supplements the water level of the converter flue vaporization cooling steam drum with manual monitoring and adjustment, so as to correct the inappropriateness at any time. Drum water level, this situation is not suitable for safe production and modern management requirements

Method used

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  • Converter steam dome high/low water level automatic feedwater unit
  • Converter steam dome high/low water level automatic feedwater unit

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Embodiment Construction

[0020] From attached figure 1 It can be seen that the automatic water supply device composed of low water level regulating valve 1, high water level regulating valve 2 and valve 8 is connected to the return pipe 6 in parallel, and the oxygen lance 16 is in the rising state before the blowing of the converter 15, at H1, and in the deoxygenated water tank 3 The soft water enters the steam drum through the water supply pump 4, the water supply pipe 5, the check valve 7 and the valve 8, and then is sent to the water inlet header below the converter flue 11 through the downcomer 10, and the converter flue 11 is blowing in the converter 15 The heated mixture returns to the steam drum 9 along the rising pipe 12. When the steam drum 9 reaches the working pressure, the pressure regulating valve 13 opens to send steam outward, and the electric contact water level gauge 14 continuously transmits the water level signal of the steam drum 9 to the Low water level regulating valve 1 and high...

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Abstract

The invention discloses a converter steam dome high / low water level automatic feedwater unit, wherein two single impact water level adjustable valve are arranged on the backwater pipe of the revolving furnace evaporation cooling supply pipe interlocking with rise and fall of the oxygen guns.

Description

Technical field: [0001] The invention relates to an automatic control device for utilization of metallurgical waste heat, in particular to a high and low water level automatic water supply device for the vaporization cooling steam drum of a steelmaking converter. Background technique [0002] At present, there are four known water supply methods for steelmaking converter flue vaporization cooling steam drum: [0003] 1. Regular water supply [0004] Before converter blowing, the steam drum is in a low water level state, and during converter blowing, water is supplied to the steam drum according to the set time. [0005] 2. Single impulse limit water supply [0006] The steam drum is in a low water level state before converter blowing, and the water supply limit in converter blowing should not exceed the high water level. [0007] 3. Double impulse automatic water supply [0008] During converter blowing, adjust the opening of the water supply valve to supply water to the...

Claims

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Application Information

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IPC IPC(8): C21C5/46
Inventor 史文锦
Owner SHOUGANG CORPORATION
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