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

Active Publication Date: 2021-06-29
SINOMA INT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing improvement schemes, the original equipment and systems of the cement line are generally used directly, so that the active lime has insufficient heating or cooling during the production process, which seriously affects the performance and output of the active lime.

Method used

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

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with drawings and embodiments.

[0026] see Figure 1-6 A system for preparing powdered active lime by transforming a cement clinker production line, including a storage and delivery unit connected in sequence, a grinding unit 1 and a homogenization storehouse 2, a preheating unit 3, a calciner 4, a suspension cooling unit 5, and a cyclone Drum 6 and finished ash conveying unit 7.

[0027] see figure 2 , the suspension cooling unit 5 includes a cyclone radiator 51, a fluidized bed cooler 52, a material collection cylinder 53 and a dust removal device 54; two groups of cyclone radiators 51 and two groups of fluidized bed coolers 52 are set in this embodiment, wherein The material powder of the calciner 4 enters the first cyclone radiator 51 under the action of the gas, disperses and is suspended in the air flow to cool under the action of the air flow, and then enters the first fluidized bed cooler 5...

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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.

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

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B2/10
CPCC04B2/10
Inventor 汤升亮刘仁越赵小亮孙德群卢仁红宋华庭陈晶晶
Owner SINOMA INT ENG
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