East China University of Science and Technology

Shanghai Huachang Environmental Protection Co., Ltd.

Luoyang Petrochemical Engineering Corporation (lpec) Sinopec

Cisco Technology, Inc.

Honeywell International Inc.

Sichuan University

Engineering Technology Research Center, Fushun Mining Group Co., Ltd.

Shanghai Huachang Environment Protection Co., Ltd.

Qiang Yang

Liang Ma

Jie Zhang

Jun Hui Liu

Zhiming Li

Hualin Wang

Zhishan Bai

Yanhong Zhang

Xin Cui

Ji Ma

Yuan Huang

Xiao Min Xu

Yi Liu

Ling Shen

Hao Lu

Wei Yuan

Jiangang Wang

Xia Jiang

Pengbo Fu

Chonggang Chen

Xia Ke

Zhuoqun Qian

Zhijun Dai

Qian Zeng

Yonghui Zhang

Liquan Li

Yi Fan

Yang Qiu

Yuxiao Sun

Qisong Shen

Wenjie Lv

Huiqing Yu

Dun Wang

Haiyang Bai

Jiandong Hu

Mingfu Bao

Bichuan Yu

Jianqi Chen

Longhu Liang

Xiaomei Xu

Chaoyang Wang

Rongpu Zhang

Da Zhao

Dasong Xing

Sen Liu

Jiewei Li

Fengqin He

Dejian Xu

An oily sewage pretreatment method without air flotation, comprising the following steps: (a) sedimentation separation: performing sedimentation separation on oily sewage to implement preliminary separation of oil, sludge, and water; (b) boiling bed separation: performing boiling bed separation on the oily sewage obtained by the preliminary separation to further remove dispersed oil, sludge, and sand from the oily sewage; (c) shape coalescence separation: performing shape coalescence separation on the oily sewage obtained by the boiling bed separation in step (b) to implement demulsification, coalescence, and separation of emulsified oil; and (d) biochemical treatment: the effluent obtained in step (c) directly enters an AOH biochemical system, an air flotation unit is omitted. Also disclosed is an oily sewage pretreatment apparatus without air flotation.

Oily sewage pretreatment method and device without air floatation

A two degree-of-freedom actuator includes a first linkage, a second linkage, a third linkage, a magnet, a winding panel, and a plurality of windings. The second linkage is rotationally coupled to the first linkage, whereby the first linkage is rotatable, relative to the second linkage, about a first rotational axis. The third linkage is rotationally coupled to the second linkage, whereby the first and second linkages are rotatable, relative to the third linkage, about a second rotational axis that is perpendicular to the first rotational axis. The magnet is fixedly mounted on the first linkage. The winding panel is fixedly mounted to the third linkage and has an inner surface and an opposing outer surface. The inner surface faces the magnet and is spaced apart therefrom. The windings are wound around the winding panel.

Two degree-of-freedom actuator

A method and a device for synchronous high-speed photographing of microparticle rotation in a liquid cyclone field and for determining the rotation velocity of a microparticle in a liquid cyclone field by using a combination of a synchronous high-speed photographing system and a transparent microparticle containing two centrosymmetrically arranged inner cores having the same diameter. The method comprises: using a transparent microparticle comprising two inner cores having the same diameter and arranged centrosymmetrically as a rotation test particle; acquiring synchronously two groups of two dimensional image series of microparticle motion in a liquid cyclone field using two orthogonally arranged high-speed digital cameras; and reconstructing a three dimensional motion trajectory of the microparticle from the two groups of synchronous image series, and determining a rotation velocity of the microparticle in the cyclone field at the same time.

Synchronous high-speed photographing method and device for microparticle rotation in liquid cyclone field

Off channel scanning on workgroup bridge (WGB) devices for fast roaming may be provided. First, it may be determined, by a first WGB, that a second WGB is not off-channel. The second WGB may be peered with the first WGB. Next, the first WGB may perform channel scanning in response to determining that the second WGB is not off-channel. The first WGB may then prioritize a first WGB channel list based on results from the channel scanning performed by the first WGB. Next, the first WGB may roam while the second WGB in not off-channel, from a first access point to a second access point on a channel with the highest priority in the first WGB channel list.

Off channel scanning on workgroup bridge (WGB) devices for fast roaming

The present invention relates to a method and a device for enclosed recycling of oil-water-sludge in an oil shale dry distillation system, comprising: scrubbing and condensing oil shale dry distillation gas at a gathering pipe section, a gas tower section, an air tower section, and a cooling tower section respectively to recycle shale oil section by section; using a separator at an outlet of each section to purify and collect the shale oil, while purifying and recycling scrubbing/cooling water; using multistage dedusters to remove oil sludge entrained in an oil-water product; using an oil sludge collecting tank and a filter after the deduster to concentrate and recycle an oil sludge; and using cyclones before and after the gas tower section to remove aerosol particles and water drops entrained in circulatory gas. Advantages include: low equipment investment costs, small occupation area, low failure rate, a highly pure shale oil product and a highly concentrated oil sludge product, and recycled waste water generated in the purification and concentration processes, thereby achieving full enclosure of the device system, greatly reducing the energy consumption, and improving the oil shale dry distillation process in the prior art.

Method for enclosed recycling of oil-water-sludge in oil shale dry distillation system

The present invention relates to a device for liquid degassing by means of swirling or centrifugal force coupled with a pressure gradient. This device comprises a cavity. The cavity is furnished with an inlet for liquid-gas mixture, a gas outlet and a liquid outlet. The gas outlet is inserted into the cavity through the top end of the cavity and positioned around 0.1-3 times the maximum diameter of the cavity from the top of the cavity. Specifically, an overflow pipe with the diameter gradually increasing from the bottom to the top was used as the gas outlet. The overflow pipe is further furnished with a bell mouth at the bottom part.

Device for liquid degassing

The invention relates to a short-flow process for desulfurization of circulating hydrogen and a device for the same. A short-flow process for desulfurization of circulating hydrogen is provided, comprising: (a) removing hydrocarbons from the circulating hydrogen mixture, so that the liquid drops of the heavy hydrocarbons in the dispersion phase are separated from the circulating hydrogen in the continuous phase, and a heavy hydrocarbon phase and a mixture phase of circulating hydrogen containing sulfur are obtained; (b) further separating the resultant mixture phase to remove the sulfides therein, so that circulating hydrogen without sulfur is obtained; (c) further separating the resultant circulating hydrogen without sulfur to remove the amine solution therein, so that purified circulating hydrogen is obtained. The invention also provides a device for desulfurization of circulating hydrogen.

Short-flow process for desulfurization of circulating hydrogen and device for the same

The invention provides a method for purifying MTO quench water and scrubbing water via mini-hydrocyclone separation, comprising: removing the entrapped catalyst particles from the MTO quench water via mini-hydrocyclone separation; cooling the quench water purified by mini-hydrocyclone separation so as to effect the recycling of water; removing the entrapped catalyst particles from the MTO quench water to be stripped via mini-hydrocyclone separation, so as to reduce the deposition of the catalyst particles within the stripping tower; removing the entrapped catalyst particles from the MTO scrubbing water via mini-hydrocyclone separation; and cooling the scrubbing water purified via mini-hydrocyclone separation so as to effect the recycling of water. The invention also provides an apparatus for purifying MTO quench water and scrubbing water via mini-hydrocyclone separation.

Method for purifying quench water and scrubbing water from MTO by mini-hydrocyclone and apparatus used for same

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Shanghai, China

Qiang Yang