Liquefied gas hot blast stove double brush type heavy magnesium water pyrolysis device

Abstract

The invention discloses a liquefied gas hot-blast stove double hairbrush type heavy magnesium water pyrolysis device. The flame of a liquefied gas burner is located in a hot-blast stove, a heat outlet of the hot-blast stove is connected with a heat exchange cylinder through a pipeline, a spraying pipe is arranged in the heat exchange cylinder, a curtain is hung in the position, below the heat exchange cylinder, in a pyrolysis tank, a rotating drum is arranged in the position, below the heat exchange cylinder, in a pyrolysis tank tank, and one of the hairbrushes is implanted in the periphery of the rotating drum; the pyrolysis tank is connected with a cyclone separator through an air outlet pipe, a return pipe at the bottom of the cyclone separator is connected with the pyrolysis tank, a center air outlet pipe of the cyclone separator is connected with a preheating tank, a curtain is also hung in the preheating tank, a rotating drum is also arranged in the preheating tank, and the other hairbrush is implanted in the periphery of the rotating drum; the preheating tank is emptied through an exhaust pipe after being connected with the cyclone separator through an air outlet pipe as well; a heavy magnesium water storage tank is connected with a pipeline between the cyclone separator and the preheating tank in the tangential direction through a heavy magnesium water delivery pump and a delivery pipe, and the bottom of the preheating tank is connected with the spraying pipe through a preheating heavy magnesium water delivery pump. By means of the liquefied gas hot-blast stove double airbrush type heavy magnesium water pyrolysis device, the low-energy-consumption and high-efficiency production of heavy magnesium water pyrolysis is achieved, and great significance is achieved for building the resource-economical and environment-friendly society and achieving energy conservation and emission reduction.

Description

technical field [0001] The invention relates to a pyrolysis device for heavy magnesium water, in particular to a double brush type heavy magnesium water pyrolysis device for a liquefied gas hot blast stove. Background technique [0002] Basic magnesium carbonate is one of the most important compounds in the magnesium industry, and is widely used as an additive in toothpaste, paint, cosmetics, plastics, rubber, etc. Usually, basic magnesium carbonate can be obtained by pyrolysis, that is, pyrolysis of magnesium bicarbonate, and its main reaction mechanism is 2Mg(HCO3)2=Mg2(OH)2CO3+3CO2+H2O. [0003] In modern industry, the method of pyrolyzing magnesium bicarbonate solution, that is, pyrolyzing heavy magnesium water, is mainly used to produce basic magnesium carbonate. The pyrolysis process needs to consume a lot of heat energy, but the existing pyrolysis devices generally have low heat transfer efficiency and waste heat utilization. Insufficient, so energy consumption is hi...

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Problems solved by technology

[0003] In modern industry, the method of pyrolyzing magnesium bicarbonate solution, that is, pyrolyzing heavy magnesium water, is mainly used to produce basic magnesium carbonate. The pyrolysis process needs to consume a lot of heat energy, but the existing pyrolysis devices generally have low heat transfer efficiency and waste heat utilization. Insufficient, thus high energy consumption and high production cost; on the other hand, in the thermodynamic and kinetic process of heavy magnesium hydrolysis reaction, the gas-liquid phase contact and heat transfer and mass transfer are slow, resulting in slow reaction speed and low efficiency. Low

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