Vitrification method for industrial waste salt
A technology of industrial waste salt and vitrification, applied in chemical instruments and methods, solid waste removal, transportation and packaging, etc., can solve the problem of inability to effectively deal with industrial waste salt and coal gangue, and avoid toxic dioxin gas. The effect of producing, stable structure and high safety
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Embodiment 1
[0030] Weigh industrial waste salt, coal gangue (SiO 2 The content is 50%) and additives (the mixture of calcium carbonate and sodium oxide with a mass ratio of 4:1), mixed evenly by a mixer, and the particle size of industrial waste salt and coal gangue is 1-3mm; The cracking furnace is cracked for 1.5 hours, and the temperature of the cracking furnace is controlled to 550 ° C; the mixed material after cracking is sent to the melting furnace for melting for 1 hour, and the temperature of the melting furnace is controlled to 1200 ° C; The gas produced by the final melting furnace is disposed of by the tail gas treatment system and then discharged up to the standard. The molten slag liquid is discharged from the furnace bottom, and the glass body is obtained after natural cooling.
Embodiment 2
[0032] Weigh industrial waste salt and coal gangue (SiO 2 content of 60%), mixed evenly by the mixer, and the particle size of industrial waste salt and coal gangue is 1-3mm; the mixture is sent to the cracking furnace for cracking for 1 hour, and the temperature of the cracking furnace is controlled to 600 ℃; the cracked mixture is sent to After melting in the melting furnace for 1.5 hours, the temperature of the melting furnace is controlled to 1150 °C; the waste gas generated by the cracking furnace is discharged into the melting furnace for further treatment to avoid the generation of toxic gases such as dioxins. Finally, the gas generated by the melting furnace is disposed of by the exhaust gas treatment system and discharged up to the standard. The molten slag liquid is discharged from the furnace bottom, and the glass body is obtained after natural cooling.
Embodiment 3
[0034] Weigh industrial waste salt, coal gangue (SiO 2 content is 70%) and sodium sulfate, and mix them evenly through a mixer, and the particle size of industrial waste salt and coal gangue is 1-3mm; the mixture is sent to a cracking furnace for cracking for 3 hours, and the temperature of the cracking furnace is controlled to 450 ° C; The mixture is sent to the melting furnace to be melted for 3 hours, and the temperature of the melting furnace is controlled to 1250 °C; the waste gas generated by the cracking furnace is discharged into the melting furnace for further treatment to avoid the generation of toxic gases such as dioxins. Finally, the gas generated by the melting furnace is disposed of by the exhaust gas treatment system. . The molten slag liquid is discharged from the furnace bottom, and the glass body is obtained after natural cooling.
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