公开(公告)号：US20220314233A1

公开(公告)日：2022-10-06

申请号：US17657004

申请日：2022-03-29

Applicant: China University of Mining and Technology

Inventor： Enhui Zhou ,  Yuemin Zhao ,  Liang Dong ,  Chenlong Duan ,  Yongxin Ren ,  Nan Zhou

IPC: B03B9/00 ,  B03B5/34 ,  B03B5/44 ,  B03B7/00 ,  B03B13/00

Abstract: The present disclosure relates to the field of mineral processing and separation, and in particular, to an underground coal hypergravity field separation system and a separation process. The separation system includes a grading hydrocyclone group, hypergravity field separators, feeding pumps, and conveying pumps. Coal collected underground is graded through a grading hydrocyclone first, then is fed into the hypergravity field separators for separation, and finally, is conveyed to a next link for dehydration through the conveying pumps. The separation system of the present disclosure has less supporting equipment, small floor area, and no complex pipeline, and is suitable for a downhole operation. In addition, the hypergravity field separators can provide a high-strength centrifugal acceleration, which can realize rapid separation of coal gangue particles in a radial direction and a tangential direction, and realize effective separation of fine coal gangue particles.

公开(公告)号：US09964357B2

公开(公告)日：2018-05-08

申请号：US14780688

申请日：2013-07-26

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY

Inventor： Yuemin Zhao ,  Xuliang Yang ,  Pengfei Zhao ,  Zhenfu Luo ,  Zengqiang Chen ,  Chenlong Duan ,  Shulei Song

IPC: F26B3/092 ,  B03B4/02

CPC classification number: F26B3/0923 ,  B03B4/02

Abstract: Drying and separation vibrating fluidized bed for processing wet coal by high-temperature hot air. Wet coal is fed into a vibrating separation chamber connected to a hot air supply duct. The wet coal is vibrated as it is dried and is layered as heat and mass transfer occur between the high-temperature air and the wet coal particles. Hot air enters the bottom of separation chamber through a distribution plate that includes asbestos fiber cloth sandwiched between clamping plates. The wet coal is fed through a feeding distribution device that separates the coal pieces as they enter the separation chamber. After the coal is dried and layered, the heavy and light material exits the separation chamber through two discharge impellers.

公开(公告)号：US09586235B2

公开(公告)日：2017-03-07

申请号：US14432239

申请日：2013-05-17

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY

Inventor： Yuemin Zhao ,  Chengyong Zhang

IPC: B07B1/42 ,  B06B1/16 ,  B06B1/02 ,  B07B1/34

CPC classification number: B07B1/42 ,  B06B1/0261 ,  B06B1/16 ,  B07B1/343

Abstract: Embodiments of the invention provide a synchronous statically indeterminate mesh-beam excitation large-scale vibrating screen, including a screen box, a support spring group, a spring base, a motor mount, a tire coupling, and a motor, wherein, a statically indeterminate mesh-beam excitation body is arranged on the screen box, and the statically indeterminate mesh-beam excitation body has at least one synchronous eccentric block vibration exciter group and two self-synchronous eccentric block vibration exciter groups in it; each self-synchronous eccentric block vibration exciter group includes a self-synchronous transmission shaft fixed to the side plates of the screen box via a bearing chock, and self-synchronous eccentric blocks fixed to the side plates of the screen box in symmetry are arranged on the self-synchronous transmission shaft; the self-synchronous transmission shaft of the self-synchronous eccentric block vibration exciter group at the side of the motor is connected with a reducer via the tire coupling, and the reducer is connected to the motor via a transmission belt.

Abstract translation: 本发明的实施例提供了一种同步静态不确定的网梁激励大型振动筛，其包括筛箱，支撑弹簧组，弹簧座，马达座，轮胎联轴器和马达，其中，静态不确定的 网梁激励体布置在筛箱上，静态不确定的网梁激励体至少具有一个同步偏心块振动激励器组和两个自同步偏心块振动激励器组; 每个自同步偏心块振动激励器组包括通过轴承座固定到筛箱的侧板的自同步传动轴，对称地固定在筛箱侧板上的自同步偏心块布置在 自同步传动轴; 电动机侧的自同步偏心块振动激振器组的自同步传动轴通过轮胎联轴器与减速器连接，减速器通过传动皮带与电动机连接。

公开(公告)号：US20160369194A1

公开(公告)日：2016-12-22

申请号：US15029698

申请日：2015-01-14

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY

Inventor： Chenlong Duan ,  Yuemin Zhao ,  Liang Dong ,  Zhenfu Luo ,  Jie Zhao ,  Keji Lv

IPC: C10L5/04 ,  F26B21/00 ,  F26B3/092 ,  F26B17/10 ,  C10L9/00 ,  C10L9/08

CPC classification number: C10L5/04 ,  C10L9/00 ,  C10L9/08 ,  C10L2290/06 ,  C10L2290/08 ,  C10L2290/60 ,  F26B3/08 ,  F26B3/092 ,  F26B3/0926 ,  F26B17/04 ,  F26B17/10 ,  F26B17/106 ,  F26B21/00 ,  F26B21/003 ,  F26B21/004

Abstract: In the sorting bed, the material to be sorted enters into the pulsating hot air drying stage, and is dried and upgraded under the effect of air flow and high-temperature hot air, the material enters into the pulsating cold wind sorting stage under the effect of scraper conveyors which are parallely arranged up and down inside. The light products and heavy products sorted and layered are respectively conveyed to fine coal and gangue discharging outlets at both ends of the sorting machine. The float and hypostasis at the corresponding discharging ends are respectively discharged by light product discharging wheel and heavy product discharging wheel. At the discharging ends, the material is removed from the sorted light material and heavy material and the medium is purified and recycled to use through subsequent process. The dry sorted air containing vapor and dust is purified and recycled through a subsequent dust removal process.

Abstract translation: 在分选床中，待分类的物料进入脉动热风干燥阶段，在空气流和高温热空气的作用下进行干燥和升级，材料进入脉动冷风分选阶段 刮板输送机上下平行布置。 分类和分层的轻质产品和重型产品分别输送到分选机两端的细煤和ang石出料口。 相应放电端的浮动和停滞分别由轻型产品排放轮和重型产品排放轮排放。 在排出端，从分选的轻质材料和重质材料中取出材料，并将介质纯化后再循环使用。 含有蒸汽和灰尘的干燥分选空气通过随后的除尘过程被纯化和再循环。

公开(公告)号：US11484913B2

公开(公告)日：2022-11-01

申请号：US17598890

申请日：2020-02-29

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY

Inventor： Yuemin Zhao ,  Jesse Zhu ,  Chenyang Zhou ,  Zhijie Fu ,  Zhenfu Luo ,  Chenlong Duan

IPC: B01J8/24 ,  B07B7/01

Abstract: Provided is a gas-solid fluidized bed dry beneficiation process using a beneficiation density gradient, including: in a dry beneficiation system of a gas-solid fluidized bed, selecting coarse particles and fine particles; placing the coarse particles at a bottom of the dry beneficiation system, and placing the fine particles above the coarse particles, wherein the coarse particles and the fine particles are separated under an initial condition; under an effect of a gas flow, the coarse particles and the fine particles being fluidized to form a high-density beneficiation region and a low-density beneficiation region, respectively, and the coarse particles and the fine particles being mixed at a contact interface to form an intermediate-density beneficiation region; and feeding minerals to be beneficiated from an upper portion of the dry beneficiation system to pass through the low-density beneficiation region, the intermediate-density beneficiation region, and the high-density beneficiation region in sequence.

公开(公告)号：US11434444B2

公开(公告)日：2022-09-06

申请号：US16972396

申请日：2019-06-11

Applicant: China University Of Mining And Technology

Inventor： Bo Zhang ,  Yuemin Zhao ,  Yadong Zhang ,  Guanghui Yan ,  Zhenfu Luo ,  Chenlong Duan ,  Liang Dong ,  Enhui Zhou

IPC: C10L9/08 ,  F26B3/092 ,  F26B3/347

Abstract: The present invention is directed towards a process for upgrading lignite comprising: prior to production pre-assess the calorific value of the coal, by selecting a relational expression between a calorific value of lignite and a degree of metamorphism, a moisture content and an ash content thereof based on a ratio of the ash content to the moisture content, pre-assess the calorific value of the coal; combining a relational expression between a production cost and the ash content and moisture content to make a cost budget; determining degrees of deashing and drying; selecting and implementing a lignite ash reduction pretreatment process; and implementing dry sorting first and then drying. The upgrading process has high sorting efficiency, high drying efficiency and low production cost, and meets the requirement for the surface moisture of the raw coal in the dry sorting operation.

公开(公告)号：US10821477B2

公开(公告)日：2020-11-03

申请号：US15767538

申请日：2017-04-12

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY

Inventor： Liang Dong ,  Yuemin Zhao ,  Chenlong Duan ,  Junyu Lu ,  Bo Zhang

IPC: B07B9/00 ,  B07B7/12 ,  F26B3/092 ,  F26B21/00 ,  F26B25/22

Abstract: A system for separation and drying of moist fine particle coal includes a blast blower, a surge tank, a moisture detection sensor, a control device and two pipelines, wherein the blast blower is communicated with the surge tank; one end of two pipelines which are connected in parallel is communicated with the surge tank, while the other end is communicated with a fluidized bed; a first pipeline includes a first valve, a first flowmeter, an air heater and an electric butterfly valve which are connected in series sequentially, while the second pipeline includes a second valve and a second flowmeter which are connected in series; the moisture detection sensor is arranged in the fluidized bed; and the control device is connected with the blast blower, the first valve, the first flowmeter, the air heater, the second valve, the second flowmeter and the moisture detection sensor.