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Novel intelligent cement clinker sintering control system

A control system and cement clinker technology, applied in the direction of furnace control device, furnace type, furnace monitoring device, etc., can solve the problems of human control, high electricity and heat consumption, large fluctuations in cement clinker output and quality, etc. Achieve the effect of reducing quantity, saving cost and saving manpower

Inactive Publication Date: 2019-02-19
中材海外工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing cement clinker burning system is still at the stage of human control. For the cement clinker burning system, intelligent control is extremely important
If the cement clinker burning system is not well controlled, it will lead to large fluctuations in the output and quality of cement clinker, and high electricity and heat consumption

Method used

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  • Novel intelligent cement clinker sintering control system
  • Novel intelligent cement clinker sintering control system
  • Novel intelligent cement clinker sintering control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A new intelligent cement clinker firing control system, see figure 1 , including temperature monitoring system 1, pressure monitoring system 2, gas analysis system 3, kiln tail feeding control system 4, calciner coal combustion control system 5, kiln head coal combustion control system 6, rotary kiln speed adjustment system 7, kiln head Negative pressure control system 8, grate cooler speed adjustment system 9, MCC system 10 and DCS system 11;

[0046]Wherein, the MCC system 10 is connected to the DCS system 11; the temperature monitoring system 1, the pressure monitoring system 2 and the gas analysis system 3 are connected to the DCS system 11; the kiln tail feeding control system 4, the calciner coal burning control system 5. Kiln head coal combustion control system 6, rotary kiln speed adjustment system 7, kiln head negative pressure control system 8 and grate cooler speed adjustment system 9 are connected to MCC system 10 and DCS system 11 respectively.

[0047] Sp...

Embodiment 2

[0051] Embodiment 2 On the basis of Embodiment 1, the functions of temperature, pressure and gas detection are added.

[0052] temperature check. The temperature monitoring system includes a temperature detection element and a temperature transmitter; the temperature detection unit is connected to a temperature transmitter; the temperature transmitter is connected to the DCS system;

[0053] The temperature transmitter is used to transmit the temperature monitored by the temperature detection element to the DCS system; the DCS system displays the received temperature and gives an alarm when the temperature reaches a preset temperature alarm threshold.

[0054] Specifically, the temperature transmitter is used to convert the temperature signal detected by the temperature detection element into a transmissible standardized output signal. The temperature monitoring system can monitor the temperature of each link in the cement clinker burning system and upload it to the DCS syste...

Embodiment 3

[0063] Embodiment 3 On the basis of the above embodiments, feeding control at the kiln tail is added.

[0064] see figure 2 , the kiln tail feeding control system includes a weighing feeding bin, a load sensor, a discharge flow control valve and a feeding controller; the bottom of the weighing feeding bin is provided with a discharge chute; the load sensor Installed on the weighing feeding bin, the discharge flow control valve is installed on the discharge chute of the weighing feeding bin; the load sensor and the discharging flow control valve are connected to the feeding controller; the The feeding controller is connected to the DCS system;

[0065] Specifically, the weighing feeding bin and the discharge chute are mature equipment in the existing cement clinker burning system. The material in the weighing feeding bin is discharged from the discharge chute. The unloading flow control valve is used to control the unloading speed of the weighing feeding bin. The larger th...

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Abstract

The invention discloses a novel intelligent cement clinker sintering control system. The novel intelligent cement clinker sintering control system comprises a temperature monitoring system, a pressuremonitoring system, a gas analysis system, a kiln tail feeding control system, a decomposing furnace coal-fired control system, a kiln head coal-fired control system, a rotary kiln speed adjusting system, a kiln head negative pressure control system, a grate cooler speed adjusting system, an MCC system and a DCS system; the MCC system is connected with the DCS system; the temperature monitoring system, the pressure monitoring system and the gas analysis system are connected to the DCS system; the kiln tail feeding control system, the decomposing furnace coal-fired control system and the kiln head coal-fired control system, the rotary kiln speed adjusting system, the kiln head negative pressure control system and the grate cooler speed adjusting system are correspondingly connected with theMCC system and the DCS system. The novel intelligent cement clinker sintering control system is high in intelligent degree, labor is greatly saved, full-automatic stable operation can be achieved, and has perfect fault alarming and protecting functions.

Description

technical field [0001] The invention belongs to the technical field of intelligent production, and in particular relates to a novel intelligent cement clinker burning control system. Background technique [0002] Cement clinker is a semi-finished product obtained by using limestone, clay, and iron as the main raw materials, which are prepared into raw meal in an appropriate proportion, burned until part or all of it is melted, and cooled. In the existing cement clinker firing system, after the raw meal is preheated and pre-decomposed in the cyclone preheater, it enters the rotary kiln for clinker firing. In the rotary kiln, the carbonate is further decomposed rapidly, and a series of solid-phase reactions occur to generate minerals in cement clinker. As the temperature of the material rises, the minerals will turn into a liquid phase, and the minerals dissolved in the liquid phase will react to produce clinker. [0003] But the existing cement clinker burning system is sti...

Claims

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Application Information

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IPC IPC(8): F27D19/00F27D21/00F27D21/04F27B7/42C04B7/36C04B7/44
CPCF27D19/00C04B7/361C04B7/44F27B7/42F27D21/00F27D21/0014F27D21/04F27D2019/0003F27D2019/0006F27D2019/0031F27D2019/004F27D2019/0056F27D2019/0075F27D2021/0007
Inventor 高超
Owner 中材海外工程有限公司
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