Waste heat utilization system for magnesium reduction slag
A slag waste heat and slag storage technology, which is applied in waste heat treatment, lighting and heating equipment, furnace components, etc., can solve the problems of heat energy loss and air pollution, and achieve the effects of reducing heat energy loss, improving heat utilization rate, and eliminating pollution
Inactive Publication Date: 2016-06-29
SHANXI UNIV
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[0015] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0016] A magnesium reduction slag waste heat utilization system is composed of multi-stage heat exchange units. The heat exchange unit is composed of a slag air heat exchange chamber, a slag air separator and an induced draft fan. The lower part of the slag-air heat exchange chamber has a slag inlet and an air inlet, and the upper part has an air outlet to enter the slag-air separator. Air is discharged from the upper part of the slag air separator, and slag is discharged from the lower part. The air outlet of the induced draft fan is connected to the lower air inlet of the slag-air heat exchange chamber. The slag outlet at the bottom of the slag storage bin is connected to the slag inlet of the first-stage heat exchange unit, and an adjusting baffle is set in the middle to control the amount of slag inlet by adjusting the position of the ba...
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The invention discloses a secondary air cooling waste heat utilization system for magnesium reduction slag. The system is formed by sequentially connecting a slag storage bin (1), a second adjustable baffle (2), a first slag and air heat exchanger (3), a slag and air separator (4), a second adjustable baffle (5), a second slag and air heat exchanger (6), a first induced draft fan (7), a heat exchanger (8), a cyclone dust collector (9), a second induced draft fan (10), a dust collector (11) and a third induced draft fan (12) through pipelines. The slag storage bin (1) is arranged on one side of the first slag and air heat exchanger (3). A cart (13) for removing magnesium slag and dust is arranged on the lower portion of the cyclone dust collector (9). The adjustable baffles are arranged between the slag storage bin (1) and the first slag and air heat exchanger (3) and between the slag and air separator (4) and the second slag and air heat exchanger (6) correspondingly. The secondary air cooling waste heat utilization system is reasonable in design, two-stage cooling is carried out on the magnesium slag by means of the first induced draft fan, the second induced draft fan, the first slag and air heat exchanger and the second slag and air heat exchanger, and the waste heat utilization rate is increased.
Description
technical field [0001] The present invention relates to an air multi-stage circulation cooling waste heat utilization system when the magnesium reduction slag is discharged, in particular to a circulation waste heat utilization system of the air sent into the slag-air heat exchanger when the magnesium reduction slag is cooled, so as to improve the thermal efficiency. The utilization rate can also realize the controllability of the total amount of heat energy generated according to the actual situation, so as to achieve the effect of energy saving and emission reduction. Background technique [0002] Hot magnesium slag is produced during the magnesium reduction process, and its temperature is relatively high, generally around 1000°C. For the utilization of waste heat, as in the patent application No. 200610121161.1, the design is to put the hot magnesium slag into the fluidized bed, cool the hot slag naturally by blowing in air and discharge the slag, and then enter the cyclo...
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Login to View More IPC IPC(8): F27D17/00
CPCF27D17/00Y02P10/25
Inventor 禹健高佳白建云王琦印江
Owner SHANXI UNIV