Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method and system for controlling vertical bordeaux heater to preheat limestone
The invention discloses a control method and a control system for preheating limestone by a vertical bordeaux heater, and belongs to the technical field of lime sintering, and the control method comprises the following steps: S1, screening the limestone into M kinds of particles with different size grades according to a size threshold range and the actual size of the limestone; s2, basic parameters are obtained in a test or numerical simulation mode, wherein firstly, M kinds of particles are arranged from top to bottom in a layered structure, and the size of each layer of particles is larger than that of the lower layer of particles; then under the condition of the limestone decomposition temperature T, the overburning time ti-> 2 of the ith particle, the calcination completion time ti-> 1 of the ith particle and the transfer speed vi of heat energy in the ith particle are obtained; s3, calculating the transfer time of heat energy in each layer of particles; and S4, the staying time t < total > is obtained through the transmission time, and the preheating process of the vertical Bordeaux heater is controlled through the staying time t < total >. According to the invention, limestone particles with different sizes can be ensured to stay in a reasonable high-temperature section for a period of time.
本发明公开了一种立波尔加热机预热石灰石的控制方法及控制系统，属于烧结石灰技术领域，包括：S1、根据尺寸阈值范围和石灰石的实际尺寸，将石灰石筛分为M种不同大小级别的颗粒；S2、通过试验或数值模拟方式获取基础参数：首先将M种颗粒以层状结构自上而下进行布置，每层颗粒的尺寸大于其下层颗粒的尺寸；然后在石灰石分解温度T条件下，获取第i颗粒的过烧时间ti→2、第i颗粒完成煅烧的时间ti→1、热能在第i颗粒中的传递速度vi；S3、计算热能在每层颗粒中的传递时间；S4、通过传递时间获取停留时间t总，通过停留时间t总对立波尔加热机预热过程进行控制。本发明能够保证不同尺寸的石灰石颗粒均处在合理的高温段停留时间内。
Method and system for controlling vertical bordeaux heater to preheat limestone
The invention discloses a control method and a control system for preheating limestone by a vertical bordeaux heater, and belongs to the technical field of lime sintering, and the control method comprises the following steps: S1, screening the limestone into M kinds of particles with different size grades according to a size threshold range and the actual size of the limestone; s2, basic parameters are obtained in a test or numerical simulation mode, wherein firstly, M kinds of particles are arranged from top to bottom in a layered structure, and the size of each layer of particles is larger than that of the lower layer of particles; then under the condition of the limestone decomposition temperature T, the overburning time ti-> 2 of the ith particle, the calcination completion time ti-> 1 of the ith particle and the transfer speed vi of heat energy in the ith particle are obtained; s3, calculating the transfer time of heat energy in each layer of particles; and S4, the staying time t < total > is obtained through the transmission time, and the preheating process of the vertical Bordeaux heater is controlled through the staying time t < total >. According to the invention, limestone particles with different sizes can be ensured to stay in a reasonable high-temperature section for a period of time.
本发明公开了一种立波尔加热机预热石灰石的控制方法及控制系统，属于烧结石灰技术领域，包括：S1、根据尺寸阈值范围和石灰石的实际尺寸，将石灰石筛分为M种不同大小级别的颗粒；S2、通过试验或数值模拟方式获取基础参数：首先将M种颗粒以层状结构自上而下进行布置，每层颗粒的尺寸大于其下层颗粒的尺寸；然后在石灰石分解温度T条件下，获取第i颗粒的过烧时间ti→2、第i颗粒完成煅烧的时间ti→1、热能在第i颗粒中的传递速度vi；S3、计算热能在每层颗粒中的传递时间；S4、通过传递时间获取停留时间t总，通过停留时间t总对立波尔加热机预热过程进行控制。本发明能够保证不同尺寸的石灰石颗粒均处在合理的高温段停留时间内。
Method and system for controlling vertical bordeaux heater to preheat limestone
一种立波尔加热机预热石灰石的控制方法及控制系统
TANG XINYU (Autor:in) / ZUO YINAN (Autor:in)
01.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
/
C04B
Kalk
,
LIME
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