System and method for preparing powdery active lime by modifying cement clinker production line

A technology for active lime and cement clinker, which is applied in the field of systems for producing powdery active lime, can solve the problems of incomplete cooling, affecting the performance and output of active lime, insufficient heating of active lime, etc. The effect of large production capacity and small transformation amount
CN113045224AActive Publication Date: 2021-06-29SINOMA INT ENG
6 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SINOMA INT ENG
Publication Date
2021-06-29

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a system and method for preparing powdery active lime by modifying a cement clinker production line. The system comprises a grinding unit and a homogenizing silo which are communicated with each other, and also comprises: a preheating unit for drying ground limestone powder, a decomposing furnace for calcining the limestone powder, and a suspension cooling unit for cooling the calcined limestone powder, wherein the material outlet of the decomposing furnace is connected with a cyclone cylinder for gas-solid separation, and the material outlet of the cyclone cylinder is connected with the material inlet of the suspension cooling unit. According to the method, by using suspension cooling, the overall heat exchange efficiency is high, energy consumption is low, heat of high-temperature lime at an outlet of the decomposing furnace is recycled to the maximum extent in a multi-stage cooling series connection mode, the cooling air volume is small, and the temperature of air returning to the decomposing furnace is high; and original equipment and systems of the cement clinker line can be fully utilized, so that the transformation amount is small, and the provided method enables the lime production capacity to be large.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to a powdery active lime production system and method, in particular to a system and method for producing powdery active lime by transforming a cement clinker production line. Background technique

[0002] Active lime refers to a kind of powdery material obtained by calcining lime raw materials with calcium carbonate as the main component within a certain temperature range. Because of its high porosity, low bulk density and large specific surface area, it is widely used in iron and steel, building materials and other industries. Its lime grains are fine and its melting ability is very high in the process of slagging.

[0003] There are many ways to produce active lime, and the common process is to use lime calcination kiln for preparation. However, as the requirements for resource utilization and transformation are greatly increased, for some existing production lines that have been eliminated such as cement clinker, the improvem...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More