The utility model relates to a coke carriage gets into tipper and turns over pretreatment systems before unloading and technology, including regional, the reconditioning transfer platform of preliminary treatment, the regional length in two sections carriages of more than or equal to at least of preliminary treatment, the preliminary treatment region divide into that the coke snatchs the region, the region is got to the bamboo clapper clamp, the coke snatchs the region, the bamboo clapper clamp is got the region and is connected in proper order with the reconditioning transfer platform, the coke snatchs regional got regional junction with the bamboo clapper clamp and is equipped with position sensor, the coke snatchs that regional both sides are equipped with water smoke dust suppression device, the coke snatchs hoist and funnel, the bamboo clapper clamp is got two regional cars and is equipped with the automatic clamp and gets the machine. Its beneficial effect does: making things convenient for the carriage to possess the tipper of entering and normally turning over the condition of unloading, snatch the hoist with the coke and clear up the coke that exceeds, the mode that the bamboo clapper was taken to the machine is got to the automatic clamp, takes the spraying to press down the dirt measure when snatching, saves the labour, has effectively improved the operating efficiency, has solved the dust pollution problem simultaneously.