Coal desulfurization device for coal preparation

The utility model discloses a coal desulfurization device for coal dressing. Desulfurization tank, one side of the top end of the sulfur removal tank is fixedly provided with a sulfur removal agent feeding opening; a stepping motor is fixedly mounted in the middle of the top end of the desulfurization tank; the output end of the stepping motor is fixedly connected with the top end of a first stirring rod; according to the coal desulfurization device for coal preparation, the reaction liquid treatment box is provided with the treatment agent feeding opening, the reaction liquid treatment box isconnected with the bottom of the desulfurization tank, and the stirring motor drives the second stirring rod, so that the coal desulfurization device has a waste liquid treatment function, harmful substances in waste liquid are prevented from harming a human body, and the surrounding environment is protected; the coal desulfurization device is connected with the desulfurization tank through the exhaust fan, the dust filt