Method for preparing activated carbon from semi-coke and device used in same

A technology of activated carbon and blue carbon, which is applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of inaccurate control of activation process, uneven pore structure of products, and no more successful applications, and achieves an increase in industrial Application methods, increase product added value, and meet market demand

Active Publication Date: 2013-06-05
HUADIAN HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ruolan carbon is treated by traditional activation process, the activation process is not controlled precisely, the product produced has uneven pore structure, poor adsorption and low mechanical strength
At present, blue carbon has not been successfully applied in the field of activated carbon manufacturing.

Method used

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  • Method for preparing activated carbon from semi-coke and device used in same
  • Method for preparing activated carbon from semi-coke and device used in same
  • Method for preparing activated carbon from semi-coke and device used in same

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Embodiment 1 of the present invention: as figure 1 As shown, a method of preparing activated carbon from blue charcoal, taking blue charcoal with a volatile content greater than 5% and a thermal stability greater than 70%, after screening, the blue charcoal with a particle size of 5 mm to 20 mm is sent to the rake activation furnace 8 for activation After the activated carbon is discharged from the rake activation furnace 8, it is cooled by the spiral cooler 6 and transported by the belt conveyor 7, and finally enters the activated carbon packaging section for screening and packaging. The semi-coke is fed from the top of the rake activation furnace 8 close to the feed port 19 of the central axis 26 of the activation furnace, and falls into the first layer of hearth. The blue charcoal on the first layer of hearth is turned from inside to outside under the turning of the rake teeth. , that is, the outer rake, and then fall into the second layer of hearth from the blanking...

Embodiment 2

[0056] Embodiment 2 of the present invention: as figure 1 As shown, a method for preparing activated carbon from blue charcoal, taking blue charcoal with a volatile content greater than 10% and a thermal stability greater than 70%, after screening, sending the blue charcoal with a particle size of 5mm to 20mm into the rake activation furnace 8 for activation After the activated carbon is discharged from the rake activation furnace 8, it is cooled by the spiral cooler 6 and transported by the belt conveyor 7, and finally enters the activated carbon packaging section for screening and packaging. The semi-coke is fed from the top of the rake activation furnace 8 close to the feed port 19 of the central axis 26 of the activation furnace, and falls into the first layer of hearth. The blue charcoal on the first layer of hearth is turned from inside to outside under the turning of the rake teeth. , that is, the outer rake, and then fall into the second layer of hearth from the blanki...

Embodiment 3

[0073] Embodiment 3 of the present invention: as figure 1 As shown, take the semi-coke with a volatile content greater than 10% and a thermal stability greater than 70%, and after screening, send the semi-coke with a particle size of 5mm to 20mm into the rake activation furnace 8 for activation treatment to generate activated carbon. After the activation furnace 8 is discharged, it is cooled by the spiral cooler 6 and transported by the belt conveyor 7, and finally enters the activated carbon packaging section for screening and packaging. The semi-coke is fed from the top of the rake activation furnace 8 close to the feed port 19 of the central axis 26 of the activation furnace, and falls into the first layer of hearth. The blue charcoal on the first layer of hearth is turned from inside to outside under the turning of the rake teeth. , that is, the outer rake, and then fall into the second layer of hearth from the blanking hole on the outside of the hearth. The central blank...

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Abstract

The invention discloses a method for preparing activated carbon from semi-coke and a device used in the method. The method comprises the following steps of: taking semi-coke of which the volatile matter is greater than 5% and the thermal stability is greater than 70%, screening and feeding the semi-coke of which the granularity is 5-20mm into a rake-type activating furnace (8) to be subjected to activation treatment to generate the activated carbon; discharging the activated carbon from the rake-type activating furnace (8), cooling at a helix cooling machine (6) and conveying through a belt conveyer (7); and finally entering an activated carbon packaging period to be selected and packaged. According to the method, the structural characteristics of organic matter components and micro-pores of a semi-coke product are sufficiently utilized, and with the combination of the operation control principle of the domestic activation furnace, a novel process control method is innovated, and the activation process of the rake-type furnace is applied to the production process of the semi-coke-made activated carbon, so that the activation process control precision of a product is greatly improved, activated carbon products of higher quality are produced, the additional value of a semi-coke product is greatly increased, the application space of the semi-coke is widened, and the market requirements of the activated carbon are met.

Description

technical field [0001] The invention relates to a method for preparing activated carbon and a device used, in particular to a method for preparing activated carbon from blue charcoal and the device used. Background technique [0002] Activated carbon is widely used in the deep purification and gas phase adsorption of domestic water, industrial water and wastewater, such as petrochemical, power plant, food and beverage, sugar and wine, medicine, fish farming and other industries, which can effectively absorb free chlorine in water , phenol, sulfur and other organic pollutants, especially the precursors of mutagen (THM), to filter out impurities and odor. It can also be used for workshop exhaust gas purification, solvent filtration, decolorization, purification, etc., gas desulfurization, petroleum catalytic reforming, gas separation, pressure swing adsorption, air drying, food preservation, gas masks, media removal carriers, organic solvent recovery, precious metal refining ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/10C01B32/336
Inventor 白建明单小勇段洋洲李福俊
Owner HUADIAN HEAVY IND CO LTD
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