Novel microwave-based cement production method capable of generating power with waste gas

A new method, cement technology, applied in the field of cement technology, can solve problems such as difficult uniformity of raw material composition, low production heat consumption, and large dust in the workshop, and achieve the effects of shortened firing time, less dust, and less investment

Active Publication Date: 2017-01-04
南京戈德水泥技术工程有限责任公司
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Problems solved by technology

[0002] At present, the commonly used method of producing cement is the new dry method, but its raw material composition is not easy to be uniform, the workshop has a lot of dust, the power consumption is high, and a large amount of CO is generated. 2 , NOX and other exhaust gas disadvantages
The eliminated wet rotary kiln method is easy to homogenize raw materials, has uniform composition, high-quality clinker, convenient transportation, less dust, and low power consumption, but high production heat consumption.

Method used

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  • Novel microwave-based cement production method capable of generating power with waste gas

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Experimental program
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Embodiment Construction

[0025] This design provides a new method of microwave cement production with waste gas power generation function, the steps are as follows:

[0026] S1: Mixing: Put cement raw meal powder, carbon powder and additives in a certain proportion and put them into a grinder for crushing;

[0027] S2: Shaping: Utilize the ball forming machine to shape the compound after pulverizing in the step S1, and make it into a pellet;

[0028] S3: Combustion and decomposition: put the pellet-shaped mixture into a microwave combustion furnace for calcination and decomposition to generate cement clinker;

[0029] S4: Exhaust gas power generation: collecting the tail gas decomposed in step S3, and transporting these high-temperature tail gases into a thermal generator for power generation;

[0030] S5: Tail gas treatment: desulfurize and denitrify the low-temperature tail gas after power generation in step S4, and then discharge it into the atmosphere;

[0031] S6: cooling and feeding: the cemen...

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Abstract

The invention relates to a novel microwave-based cement production method capable of generating power with waste gas. The method comprises the following steps: S1: mixing; S2: forming; S3: combustion and decomposition; S4: power generation with waste gas; S5: tail gas treatment; and S6: cooling and feeding. The microwaves are utilized for heating, thereby enhancing the calcination decompose work efficiency; and the decomposed waste gas is recycled to generate power, thereby performing the functions of lowering the cost and protecting the environment.

Description

technical field [0001] The patent of the present invention relates to the technical field of cement technology, in particular to a new method of producing cement by microwave with the function of generating electricity from waste gas. Background technique [0002] At present, the commonly used method of producing cement is the new dry method, but its raw material composition is not easy to be uniform, the workshop has a lot of dust, the power consumption is high, and a large amount of CO is generated. 2 , Disadvantages of exhaust gas such as NOX. The eliminated wet rotary kiln method is easy to homogenize raw materials, has uniform composition, high-quality clinker, convenient transportation, less dust, and low power consumption, but high production heat consumption. Contents of the invention [0003] The purpose of the present invention is to use microwaves to heat, improve the efficiency of calcination and decomposition, and recycle the decomposed waste gas to generate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/44C04B7/02F27B7/10
CPCC04B7/02C04B7/4453F27B7/10
Inventor 黄建军朱伟姜树森夏祥成
Owner 南京戈德水泥技术工程有限责任公司
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