US 11,053,122 B2
Continuous combustion production equipment for synthesizing ton-grade fullerenes and a synthetic process therefor
Suyuan Xie, Xiamen (CN); Chaoyong Fu, Xiamen (CN); Miaomiao Chen, Xiamen (CN); Guoyuan Wang, Xiamen (CN); Xiaoming Tong, Xiamen (CN); Jun Xiao, Xiamen (CN); Shunliu Deng, Xiamen (CN); and Qianyan Zhang, Xiamen (CN)
Assigned to XIAMEN UNIVERSITY, Xiamen (CN); and JIANGXI JINSHI HIGH-TECH DEVELOPMENT CO., LTD., Jiangxi (CN)
Filed by Xiamen University, Xiamen (CN); and Jiangxi Jinshi High-tech Development Co., Ltd., Jiangxi (CN)
Filed on Dec. 20, 2019, as Appl. No. 16/722,733.
Claims priority of application No. 201811583650 (CN), filed on Dec. 24, 2018.
Prior Publication US 2020/0198972 A1, Jun. 25, 2020
Int. Cl. C01B 32/154 (2017.01)
CPC C01B 32/154 (2017.08) 20 Claims
OG exemplary drawing
 
1. A continuous combustion production equipment for synthesizing ton-grade fullerenes, comprising: a gas supply and flow control system, a liquid supply and flow control system, a vaporization and preheating system, a combustion furnace, a combustor, a spray nozzle, an ignition system, a filter tank, a product collection system, a vacuum control system, a vacuum measuring and displaying unit and a circulation water cooling system, wherein the combustion furnace is placed vertically, on a wall of which is arranged a water-cooling interlayer and at least one viewing window, the combustion furnace is an all-in-one diffusion combustion furnace, an inner of the all-in-one diffusion combustion furnace is a three-stage diffusion structure;
the combustor is equipped with three gas passages respectively at an inner layer, a middle layer and an outer layer, cross sections of each one of the gas passages is a concentric circle, the gas passages are arranged as variable diameter passages, outlets of the gas passages are not in a same cross section; the combustor is equipped with a water-cooling interlayer;
the spray nozzle is arranged at an inner side of the combustion furnace, an ejection direction of the spray nozzle is pointed at a flame, a flowmeter in the gas supply and flow control system is configured for controlling a flux of gas raw materials, a constant flow pump in the liquid supply and flow control system is configured for controlling a flux of liquid raw materials; raw material supply lines in the gas supply and flow control system and the liquid supply and flow control system are heated with heating components, a heating temperature is controlled with a temperature controller in the vaporization and preheating system such that the gas raw materials and the liquid raw materials are preheated prior to being charged into the combustion furnace;
the ignition system is equipped with a sleeve, a boost circuit and two metal electrodes, the sleeve, together with the metal electrodes positioned inside the sleeve, extends into the combustion furnace, one side of each of the two metal electrodes is a tip, another side of each of the two metal electrodes is connected with a boost circuit;
the filter tank is placed horizontally, an inlet of the filter tank is connected with an outlet of the combustion furnace through an elbow pipe and a first valve, the filter tank is equipped with a filter cartridge and a product sweeping device, carbon ashes in the filter tank and on the filter cartridge are swept into the product collection system by the product sweeping device without changing a pressure of a reaction system;
the product collection system includes product collection tanks and a bag collection device, the product collection tanks are arranged under two ends of the filter tank, with one of the product collection tanks at a left and another at a right end, a second valve is arranged between each of the product collection tanks and the filter tank, the product collection tanks are equipped with ports, each of which has a switch and is used for transferring products to the bag collection device; a bottom of the filter tank is connected with the product collection tanks, each of the product collection tanks is connected with a vacuum pump set through a pipeline and the bag collection device, a third valve is arranged in the pipeline;
the product sweeping device is equipped with a metal hoop, a plane of the metal hoop is parallel to an end cap of the filter tank, the metal hoop is surrounded with brushes made of copper wires, an electric motor arranged outside the filter tank controls a front-to-back motion of the metal hoop in the filter tank by means of gears and screws;
a fourth valve in communication with air is arranged in the pipeline of the vacuum pump set in the vacuum control system; an outlet of the filter tank is connected with the vacuum pump set through the pipeline, the fourth valve is arranged in the pipeline; the filter tank is connected with the combustion furnace and the vacuum pump set in a same way; the combustion furnace, the filter tank and the product collection tanks are connected with the vacuum measuring and displaying unit, the vacuum measuring and displaying unit is used for monitoring a pressure in the combustion furnace, a pressure in the filter tank and a pressure in the product collection tanks;
the circulation water cooling system is connected with the combustion furnace and the vacuum pump set, and is used for circularly supplying cooling water to the combustion furnace and the vacuum pump set.