Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
MULTISTAGE SUSPENSION PREHEATING CEMENT KILN SYSTEM AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/182013
Kind Code:
A1
Abstract:
Disclosed are a multistage suspension preheating cement kiln system, and a control method for a multistage suspension preheating cement kiln system. The multistage suspension preheating cement kiln system comprises: a rotary kiln, which has a rotary kiln flue gas chamber; a decomposition furnace, which is in communication with the rotary kiln flue gas chamber; a multistage suspension preheater for preheating a cement raw material, the multistage suspension preheater at least comprising a last-stage cyclone, a penultimate-stage cyclone, and a heat exchange pipeline between the two cyclones, wherein flue gas from the decomposition furnace is introduced into the last-stage cyclone, and between an upper-stage cyclone and a lower-stage cyclone of the multistage suspension preheater, and outlet flue gas from the lower-stage cyclone is introduced into the upper-stage cyclone through the heat exchange pipeline; a cement raw material conveying pipeline, which is in communication with the multistage suspension preheater; and a coal supply device, used for supplying coal power to the system, wherein at least one heat exchange pipeline is provided with a preheater coal supply point, and the coal supply device is suitable for supplying coal powder to the multistage suspension preheater by means of the preheater coal supply points.

Inventors:
REN QIANGQIANG (CN)
CAI JUN (CN)
LV QINGGANG (CN)
Application Number:
PCT/CN2020/077540
Publication Date:
September 17, 2020
Filing Date:
March 03, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
INST OF ENGINEERING THERMOPHYSICS CHINESE ACADAMY OF SCIENCES (CN)
International Classes:
C04B7/43; F27D13/00
Foreign References:
CN1418178A2003-05-14
CN201281335Y2009-07-29
CN105444582A2016-03-30
DE10202776A12003-07-31
DE4123306C22000-05-25
JP2000272940A2000-10-03
Attorney, Agent or Firm:
BEIJING JINCHENG TONGDA & NEAL LAW FIRM (CN)
Download PDF: