Continuous hydrophobic white carbon black production device

Abstract

The invention discloses a continuous hydrophobic white carbon black production device which comprises a deaerator, a rotary kiln reactor, a fluidized bed reactor, a modifier evaporator and a modifierpreheater, the deaerator is provided with a white carbon black inlet and a nitrogen inlet, and a discharge port at the upper end of the deaerator is rotatably connected with one end of the rotary kilnreactor through a mounting shell; the other end of the rotary kiln reactor is rotatably connected with a feeding hole in one side of the fluidized bed reactor, the outer surfaces of the deaerator, the rotary kiln reactor and the fluidized bed reactor are coated with electric heaters, and the discharging end of the modifier evaporator is connected with the fluidized bed reactor through a modifierpreheater. The device has several functional sections of white carbon black deoxidation and preheating, white carbon black conventional treatment, white carbon black deep treatment, modifier evaporation and preheating and modifier tail gas recycling, continuous production is conducted through equipment, the hydrophobic white carbon black productivity is improved, the product uniformity is high, operation is easy, the modifier conversion rate is increased, and consumption is reduced.

Description

technical field [0001] The invention relates to a production device of hydrophobic white carbon black, in particular to a production device of continuous method hydrophobic white carbon black. Background technique [0002] At present, the main production method of hydrophobic white carbon black in this technical field is intermittent production in stirred reactors, and a few of them use multi-stage fluidized bed continuous reaction devices. Among them, the production capacity of intermittent hydrophobic silica production equipment is small, and the product uniformity is poor. However, the multi-stage fluidized bed reactor has a lot of supporting equipment, and the material transportation and bed height control between each fluidized bed are complicated, and inert gas is needed as the power. The fluidized bed reaction device needs to maintain a certain fluidized state of white carbon black to maintain a good gas-solid phase contact, and requires a large modifier steam flow r...

AI Technical Summary

Problems solved by technology

Among them, the production capacity of intermittent hydrophobic silica production equipment is small, and the product uniformity is poor

However, the multi-stage fluidized bed reaction device has many supporting equipment, the material transportation between each fluidized bed and the control of the bed height are complicated, and inert gas is required as the driving force.

The fluidized bed reaction device needs to maintain a certain fluidized state of white carbon black to maintain a good gas-solid phase contact, and requires a large modifier steam flow rate, resulting in low single-pass conversion of the modifier and large raw material consumption.

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