Formed coke for closed calcium carbide production mainly prepared from semi-coke powder

A technology of semi-coke powder as the main raw material, which is applied in the field of closed-type calcium carbide production of coke with semi-coke powder as the main raw material and its preparation, can solve problems such as inability to optimize utilization correctly, waste of high-quality resources, and large specific surface area. Achieve the effect of increasing the value of market interests, significant economic and social benefits, and saving coke resources

Inactive Publication Date: 2015-04-29
三门峡中兴节能环保科技有限公司
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]Semi-coke (also known as semi-coke), the structure is required to be massive, the particle size is generally above 2cm, the color is light black, and the carbon particles are extremely porous. Large surface area, light specific gravity, poor strength, more than 2cm is extremely versatile, less than 2m is called semi-coke powder, semi-coke powder is a high-quality coal type, and the output is huge in the production area. It cannot be properly optimized and utilized, so it can only be given away or sold at a price much lower than that of ordinary anthracite, which greatly wastes high-quality resources

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] Described binding agent, its preparation method step is:

[0024] Grind thiourea, polypropylene, amide, and borax into subdivisions of less than 80 meshes, and put the ground subdivisions together with cornstarch, dextrin, borax, and 502 rubber powder into a dry powder mixer and mix evenly. The finished binder dry powder should be packaged in a moisture-proof inner and outer bag, and stored in a cool and dry place;

[0025] When in use, add 30kg of water and 70kg of dry binder powder into the stirring reaction kettle, add 850kg of water after stirring into a viscous slurry, dilute the slurry into a liquid, and slowly add 30kg of water after it is completely liquid. 20kg of sodium hydroxide solution; it reacts into a brown viscous liquid state during stirring, and then becomes blue charcoal powder to make molded coke, which is used as a binder to replace coke in closed calcium carbide production.

[0026] Quality requirements and molding process standards for main and a...

Embodiment 1

[0031] A form coke for closed calcium carbide production with semi-coke powder as the main raw material, including semi-coke powder with 80% fixed carbon as the main material, gas fertilizer coal or coking coal auxiliary materials, and coke for reinforcing and bonding the above-mentioned semi-coke powder binder;

[0032] Described a kind of form coke that is used for the production of closed type calcium carbide with semi-coke powder as main raw material is characterized in that its production method, concrete steps are as follows:

[0033] First mix 65% of the main material and 35% of the auxiliary materials in the mixing mixer, and then add the liquid amount of the adhesive to the raw and auxiliary materials being stirred according to the ratio of 150-180kg of binder per ton of blue charcoal powder Continue stirring in the middle until the mixed material is grasped into a ball and not sticky to the hand, and then sent to the molding machine for molding, and the diameter of t...

Embodiment 2

[0040] A type of coke for closed-type calcium carbide production with semi-coke powder as the main raw material, including semi-coke powder with 83% fixed carbon as the main material, gas-fertilized coal or coking coal auxiliary materials, and coke for reinforcing and bonding the above-mentioned semi-coke powder binder;

[0041] Described a kind of form coke that is used for the production of closed type calcium carbide with semi-coke powder as main raw material is characterized in that its production method, concrete steps are as follows:

[0042]First, mix 70% of the main material and 30% of the auxiliary materials in the mixing mixer, and then add the liquid amount of the adhesive to the raw and auxiliary materials being stirred according to the ratio of 150-180kg of binder per ton of blue charcoal powder Continue stirring in the middle until the mixed material is grasped into a ball and not sticky to the hand, and then sent to the molding machine for molding, and the diame...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a formed coke for closed calcium carbide production mainly prepared from semi-coke powder, which is produced by using a main material semi-coke powder with the fixed carbon content of not less than 80%, an auxiliary material gas fat coal or coke and an adhesive for reinforcing and bonding the semi-coke powder. The production method comprises the following steps: uniformly mixing the main material and auxiliary material in a stirrer, adding the adhesive liquid into the stirred raw and auxiliary materials according to the proportion of the semi-coke powder and adhesive, continuing stirring until the mixture can not be sticky to the hand when being grasped by the hand, and forming the mixture in a forming machine, wherein the mechanical strength of the wet formed coal is 40-60N, and the formed coal can not become flat or scattered after freely falling to an iron plate from a 2m height; sending the formed coal with the degree of perfection of 98% above into a pyrolyzing furnace; and pyrolyzing under closed oxygen conditions, thereby obtaining the formed coke for closed calcium carbide production mainly prepared from semi-coke powder. The formed coke for closed calcium carbide production mainly prepared from semi-coke powder greatly optimizes the use of the semi-coke powder, enhances the market benefit value of the semi-coke powder, saves the coke resources, greatly lowers the cost of the calcium carbide production industry, and has obvious economic benefit and social benefit.

Description

technical field [0001] The invention relates to the field of molded coke for calcium carbide production, in particular to a molded coke used in closed calcium carbide production with semi-coke powder as the main raw material and a preparation method thereof. Background technique [0002] Semi-coke, semi-coke is made of high-quality Jurassic clean coal abundant in Shenfu Coalfield or high-quality coal similar to Shenfu long-flame coal (such as lean coal, weakly caking coal, etc.), as a new type of carbon The material, with its characteristics of high fixed carbon, high specific resistance, high chemical resistance, low ash content, low aluminum, low sulfur and low phosphorus, is widely used in calcium carbide, ferroalloy, ferrosilicon and silicon carbide to gradually replace metallurgical coke The production of such products has become an irreplaceable carbon material. [0003] Semi-coke (also known as semi-coke), the structure is required to be massive, the particle size is...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/12C10L5/14
Inventor 韩维国董永革
Owner 三门峡中兴节能环保科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap