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Energy-saving method for middle storage type coal mill

A coal mill and warehouse-type technology, which is applied in the direction of combustion methods, block/powder fuel preparation, combustion equipment, etc., can solve problems such as large time lag, waste of electric energy, and automatic control systems that cannot be optimally controlled.

Inactive Publication Date: 2009-06-24
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The system is a complex system with nonlinear, strong coupling, large inertia, large time-delay, and time-varying parameters, and there are many uncertain interference factors. waste of electricity

Method used

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  • Energy-saving method for middle storage type coal mill

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Embodiment Construction

[0006] 1. The present invention uses an intelligent control method to optimize the optimal load of steel balls to achieve the optimal load of steel balls, thereby realizing the energy saving of the coal mill.

[0007] 2. The steel ball loading amount referred to in the present invention is the optimal loading amount, which is given by the fuzzy controller and realized by the real-time action of the actuator.

[0008] 3. The mechanical structure of the executive mechanism referred to in the present invention is the steel ball real-time loading and unloading channel provided by the coal mill.

[0009] 4. The control structure of the actuator referred to in the present invention is that the loading and unloading channel is provided with an excitation device and an excitation control device.

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Abstract

The invention uses an energy saving method for a new intermediate warehouse style coal grinding machine aiming at improving the automatic control level of the coal grinding machine, the optimum charge of steel balls is optimized by a fuzzy controller, so that the coal grinding machine operates in coordination with a boiler, and the coal grinding machine operates effectively and economically.

Description

technical field [0001] Industrial control, automation, coal mill, thermal power plant, pulverizing system Background technique [0002] The process of a thermal power plant is: the fuel is burned in the boiler, the water in the boiler is heated to turn it into steam, the steam turbine receives the steam supplied by the boiler, and its rotor is driven by the steam to drive the generator to rotate to generate electricity. In my country, most The boilers used in thermal power plants are pulverized coal boilers. The combustion process is that the pulverized coal is injected into the furnace together with the air for suspension combustion. In the pulverized coal furnace, the contact area between fuel and air is greatly increased, the combustion is more violent, and the temperature in the furnace is also higher, so the combustion efficiency is also higher. Therefore, the pulverized coal furnace must be equipped with a complete pulverizing system for grinding raw coal into pulveri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23K1/00
Inventor 程启明
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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