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Low-temperature dry distillation furnace for preparing blue-cokes and preparation method of blue-cokes

A dry distillation furnace and semi-coke technology, which is applied in the field of semi-coke preparation, can solve the problems of excessive air consumption and the inapplicability of low-temperature dry distillation furnaces, and achieve the effects of reducing moisture, increasing area utilization, and uniform distribution

Inactive Publication Date: 2016-08-10
SHAANXI SHENMU SAN JIANG COAL CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a low-temperature carbonization furnace for preparing semi-coke, which solves the problem that the low-temperature carbonization furnace in the prior art cannot be used for raw coal with a particle size below 30mm and consumes too much air

Method used

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  • Low-temperature dry distillation furnace for preparing blue-cokes and preparation method of blue-cokes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] When the present invention is in use:

[0037] Step 1: Select the raw coal for preparing semi-coke; carry out preliminary drying and screening of the raw coal. Since the carbonization furnace of the present invention can dry-distill raw coal with a particle size of 0-120mm, it is not necessary to screen out the raw coal with too small particle size, which saves a lot of manpower and time.

[0038] Step 2: Pour the raw coal obtained in step 1 into the low-temperature carbonization furnace from the coal material inlet 1. Due to the setting of the gas collecting umbrella a11 and the gas guiding umbrella device 2, the raw coal is evenly dispersed and evenly falls into the low-temperature carbonization furnace The dry distillation section in the furnace avoids the accumulation of raw coal with small particle size, and improves the utilization rate of the space in the dry distillation section.

[0039] Subsequently, the raw coal is dry-distilled at 650°C for 2 hours to obtai...

Embodiment 2

[0048] When the present invention is in use:

[0049] Step 1: Select the raw coal for preparing semi-coke; carry out preliminary drying and screening of the raw coal. Since the carbonization furnace of the present invention can dry-distill raw coal with a particle size of 0-120mm, it is not necessary to screen out the raw coal with too small particle size, which saves a lot of manpower and time.

[0050] Step 2: Pour the raw coal obtained in step 1 into the low-temperature carbonization furnace from the coal material inlet 1. Due to the setting of the gas collecting umbrella a11 and the gas guiding umbrella device 2, the raw coal is evenly dispersed and evenly falls into the low-temperature carbonization furnace The dry distillation section in the furnace avoids the accumulation of raw coal with small particle size, and improves the utilization rate of the space in the dry distillation section.

[0051] Subsequently, the raw coal was dry-distilled at 750°C for 2 hours to obta...

Embodiment 3

[0060] When the present invention is in use:

[0061] Step 1: Select the raw coal for preparing semi-coke; carry out preliminary drying and screening of the raw coal. Since the carbonization furnace of the present invention can dry-distill raw coal with a particle size of 0-120mm, it is not necessary to screen out the raw coal with too small particle size, which saves a lot of manpower and time.

[0062] Step 2: Pour the raw coal obtained in step 1 into the low-temperature carbonization furnace from the coal material inlet 1. Due to the setting of the gas collecting umbrella a11 and the gas guiding umbrella device 2, the raw coal is evenly dispersed and evenly falls into the low-temperature carbonization furnace The dry distillation section in the furnace avoids the accumulation of raw coal with small particle size, and improves the utilization rate of the space in the dry distillation section.

[0063] Subsequently, the raw coal is dry-distilled at 700°C for 2 hours to obtai...

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Abstract

The invention provides a low-temperature dry distillation furnace for preparing blue-cokes. The low-temperature dry distillation furnace is characterized by comprising a raw coal inlet, wherein the lower side of the raw coal inlet is connected with a dry distillation furnace; the dry distillation furnace is composed of a dry distillation segment and a cooling segment which are arranged in the dry distillation furnace from top to bottom; a gas collection umbrella a (11) and a gas guide umbrella device (2) which facilitates circulation of air are arranged in the dry distillation segment from top to bottom; a gas distribution umbrella device (3) for introducing mixed gas of the air and coal gas is arranged below the gas guide umbrella device (2); a shower pipe device (4) for introducing cooling water is arranged in the cooling segment from top to bottom; a coke pushing machine device (8) for making blue-cokes uniformly discharged is arranged below the shower pipe device (4). The low-temperature dry distillation furnace is capable of increasing the utilization ratios of the air and the coal gas, more uniformly distributing raw coals, increasing the area utilization ratio in the dry distillation furnace, also purifying raw coke oven gas produced by dry distillation and reducing moisture in finished blue-cokes and is environment-friendly and free of pollution.

Description

technical field [0001] The invention belongs to the technical field, and relates to a low-temperature dry distillation furnace for preparing blue charcoal, and also relates to a preparation method of blue charcoal. Background technique [0002] Semi-coke is also called semi-coke. It was originally a high-quality carbon material made of high-quality Jurassic refined lump coal rich in Shenfu coalfields and dry-distilled at 600-850 ° C. Because of its high fixed carbon, high specific resistance, and chemical activity It is widely used in calcium carbide, ferroalloy, ferrosilicon, silicon carbide and synthetic ammonia industries due to its good quality and low price. [0003] At present, the existing raw coal low-temperature dry distillation process only targets raw coal with a larger particle size, that is, the particle size is 30-120 mm. But for the raw coal whose particle size is less than 30mm, that is, the raw coal of 0-30mm, due to its small particle size, sufficient air ...

Claims

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Application Information

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IPC IPC(8): C10B53/04C10B57/14C10B57/18C10B57/10
CPCC10B53/04C10B57/10C10B57/14C10B57/18
Inventor 尚文智尚敏张水军刘军利方胜利刘蕾李振义李波张雄尚振平
Owner SHAANXI SHENMU SAN JIANG COAL CHEM
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