Method for making coal fine into form coke by microwave energy

A technology of microwave energy and pulverized coal, which is applied in microwave heating, coke ovens, special forms of dry distillation, etc., can solve the problems of complex production procedures, long carbonization time, short carbonization time, etc., and achieves increased bulk density, low production cost, The effect of high production efficiency

Inactive Publication Date: 2009-08-05
唐山金强恒业压力型焦有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the invention of the present invention is to provide a kind of using coal powder as raw material to utilize inorganic binder and less caking coal, adopt microwave energy (band 245

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: A kind of method that utilizes microwave energy to make coal powder into molded coke, use conveying device, molding machine, press and microwave heating device in the process of this method system mold coke, this method uses coal powder as raw material, according to Follow the steps below:

[0022] 1. Dehydration: pass the raw coal powder through a φ3mm sieve, sieve out the large particles in the coal powder, crush the large particles of coal powder to make the particle size less than 3mm, and then mix with the coal powder under the sieve evenly to obtain fine coal Fine coal powder is sent to the first microwave heating device for heat treatment. The temperature of the microwave heating device is adjusted to the band of 0-180°C. After heating for 100 minutes, the moisture content of the fine coal powder is below 1%, and then transported The machine sends it to the microwave heating device of the second wave band for dry distillation.

[0023] 2. Dry disti...

Embodiment 2

[0028] Embodiment 2: A kind of method that utilizes microwave energy to make coal powder into coke, use conveying device, forming machine, press and microwave heating device in the process of making coke of the present invention, this method is raw material with coal powder, according to Follow the steps below:

[0029] 1. Dehydration: pass the raw coal powder through a sieve less than or equal to φ3mm, sieve out the large particles in the coal powder, crush the large particle size of the coal powder, and the particle size is less than 3mm, and then mix with the coal powder under the sieve evenly to obtain fine Coal powder, the fine coal powder is sent to the first microwave heating device for heat treatment, the temperature of the microwave heating device is adjusted to 0 ~ 180 ° C band, after heating for 120 minutes, the moisture content of the fine coal powder is below 1%, and then use The conveyor sends it to the microwave heating device of the second wave band for dry dis...

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PUM

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Abstract

The invention relates to a method for producing formed coke, in particular to a method for preparing coal powder into the formed coke by microwave. The method adopts coal powder as raw material and comprises the following steps: sieving the coal powder for preparing fine coal powder, sending the fine coal powder into a first microwave heating device for dehydration until the water content of the heated fine coal powder is below 1 percent, and sending the heated fine coal powder into a second microwave heating device by a conveying device for dry distillation; performing the dry distillation to the fine coal powder by the second microwave heating device to analyze other materials in the coal powder, preparing carbocoal after the dry distillation, sending the carbocoal into a mixer by the conveying device to prepare the mixture after adding bonding material; sending the mixture to a forming machine by a conveyer for forming so as to prepare a formed coke semi-finished product; sending the reformed coke semi-finished product into a third microwave heating device for being heated and carbonized to prepare red coke, and sending the carbonized red coke into a coke car to prepare a formed coke product. The invention has low production cost, high production efficiency, cleanness and environment protection because coke powder and waste are not produced during the production.

Description

technical field [0001] The invention relates to a method for producing molded coke, in particular to a method for making coal powder into molded coke by using microwave energy. Background technique [0002] my country is a big country of coke production, and coke production accounts for about 50% of the world's total coke production. Due to various reasons, my country's coking technology is still relatively backward. The amount of coal or weakly caking coal accounts for only 20-30%, but the amount of caking coal reaches 70-80%, which is far behind the advanced level in foreign countries (the amount of non-caking coal or weakly caking coal is 1:1 ), this digital structure not only increases the production cost of coke, but also exacerbates the current contradiction between supply and demand of caking coal in my country, which is extremely disproportionate to China's status as a major coke user. [0003] At present, most of the mechanical cokes produced in China are directly ta...

Claims

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Application Information

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IPC IPC(8): C10L5/10C10L5/12C10B53/04C10L5/28H05B6/64
Inventor 康广民
Owner 唐山金强恒业压力型焦有限公司
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