公开(公告)号：US11136507B2

公开(公告)日：2021-10-05

申请号：US16764727

申请日：2018-12-03

Applicant: NIUTECH ENVIRONMENT TECHNOLOGY CORPORATION

Inventor： Xiaolu Niu ,  Guoqian Han ,  Jie Niu ,  Lanying Tong ,  Haimin Zhang ,  Zongcai Li ,  Shengyu Shi ,  Bin Niu

IPC: C10B31/06 ,  B01J4/00 ,  B01J6/00 ,  C10B53/07 ,  C10G1/10

Abstract: A continuous feeding process and device for waste flexible polymer material; wherein the process continuously feeds waste flexible polymer material into a subsequent pyrolysis apparatus following compression, cutting and dispersion; the waste flexible polymer material is pre-treated during compression, cutting and dispersion to achieve continuous sealing feeding, while pyrolysis oil gas preheats and self-lubricates the device; the device used includes a feeding apparatus, a material dispersion apparatus and a screw feeder; the material is compressed, cut and dispersed in the feeding apparatus and the material dispersion apparatus, and then falls into the screw feeder, being preheated and thermally sealed by the pyrolysis oil-gas in the screw feeder; by using such a process, waste flexible polymer material from various sources may be continuously fed for pyrolysis, fully using the temperature of an oil-gas generated in a pyrolysis machine for preheating and device lubrication.

公开(公告)号：US11326106B2

公开(公告)日：2022-05-10

申请号：US17267640

申请日：2019-02-18

Applicant: NIUTECH ENVIRONMENT TECHNOLOGY CORPORATION

Inventor： Xiaolu Niu ,  Haimin Zhang ,  Guoqian Han ,  Lanying Tong ,  Zhenkun Zhu ,  Shengyu Shi ,  Shuyin Tian ,  Zongcai Li ,  Bin Niu

IPC: C10B53/00 ,  C10B5/00 ,  C10B7/00 ,  C10B33/00 ,  C10B49/04 ,  C10G1/04 ,  B09B3/40

Abstract: A solid hazardous waste pyrolysis process and full-set equipment including a pyrolysis box for hazardous waste and intermittent pyrolysis equipment. The equipment includes an outer and rotatable inner barrel; at least one pyrolysis material placement area is formed in the inner barrel; the placement area formed by multiple groups of guide plates circumferentially arranged on the inner wall of the barrel and baffles arranged on the top of plates at the two ends; each group of plates include vertical and sieve plates that are connected. Hazardous waste placed in the pyrolysis box; a box body is placed between the baffles of the pyrolysis material placement areas; after a pyrolysis device is sealed, heat is carried out to start pyrolysis; the box body rotates at the bottom of the inner barrel; and a material is heated, melts and falls onto the reaction medium below, completing pyrolysis of solid hazardous waste.

公开(公告)号：US11420892B2

公开(公告)日：2022-08-23

申请号：US17265389

申请日：2019-02-18

Applicant: NIUTECH ENVIRONMENT TECHNOLOGY CORPORATION

Inventor： Xiaolu Niu ,  Guoqian Han ,  Haimin Zhang ,  Zongcai Li ,  Jie Niu ,  Lanying Tong ,  Shengyu Shi ,  Feng Lu ,  Bin Niu

IPC: C10B47/44 ,  C02F11/10 ,  C10B49/20 ,  C10B51/00 ,  C10B55/00 ,  C10B55/08 ,  C10G1/02 ,  C02F101/32 ,  C02F103/36

Abstract: An oil sludge pyrolysis device, including an outer cylinder body and an inner cylinder body, a spiral conveyor belt being provided on an inner wall of the inner cylinder body, and thermally conductive pipes being provided on the spiral conveyor belt. The device enlarges the heat exchange area during oil sludge pyrolysis, improves the heat exchange efficiency and the heat utilization rate, and increases the pyrolysis speed of oil sludge at a low temperature.