Equipment for the briquetting pulverized coal (coal dust)

breket At some point, every company that is engaged in activities related to the sale or processing of any type of coal, faces a problem of accumulation of small coal and dust. Powdery fraction from 0 to 6 mm is the average of not less than 25% of the total mass of incoming raw materials. As a rule, it entails difficulties in selling this amount or a significant reduction in price.

One of the most effective methods of solution to this problem is to use the accumulated coal dust for the production of coal briquettes. Manufacture of fuel briquettes has not a very long history. It has acquired real interest only in recent years, in connection with the significant increase in the cost of fuel including coal products.

Most of the attempts to organize the production of coal briquettes were unsuccessful because of the poor quality and characteristics of received briquettes, related with the use of cheap but bad combustible binders, which repeatedly increased ash content and minimized the revenue of sales.

Our company offers an exclusive complex of the equipment, which allows using a rather simple technology to avoid the use of binders and other impurities except for the simple water in the production of briquette.

This allows you to get a result briquette, which in its composition and characteristics does not inferior source of long sight of coal and avoid the usual shortcomings (odor, large ash content, low calorie, etc.) The main working unit in the proposed equipment are extrusion presses, which have been specially developed for briquetting of rock, dust coal anthracite, coal slimes, crumbs of brown coal, peat, etc. The technology of pressing lies in adhesion-chemical processes in viscous-chemical systems, created by fine-dispersed particles of coal, which themselves are astringent substances. Simply saying, work of the creates such physical-chemical conditions, which force already included in the structure of the coal fossil organic compounds (phenols, resins, waxes, etc.) with the participation of water polarize on the surface of particles making them communicate among themselves. During cooling and drying, briquette hardens and fixes. Briquetted fuel possesses high thermal power properties, in particular, sufficient mechanical strength, water resistance and heat resistance.

Layer of such fuels during combustion has good gas permeability, which provides the full extent of combustion, even with a relatively high ash content. For maximum performance of briquetting presses, our company has worked out the storage hopper with screw-type presses, to ensure uninterrupted supply of charge under the necessary pressure and with the design speed. In addition, the lines of briquetting includes pontoon conveyors with air coolers. For producing of charge of necessary moisture, our company has developed mixing drums with a capacity up to one ton of ready raw material. Due to the simplicity of the technological process, equipment does not have complex technological units, in the process of operation and repair does not require highly qualified maintenance personnel and is reliable in all conditions.

Price list

 

1. Line for briquetting 16 tons per shift (shift – 8 working hours). Following assembly:

Assembly

Productivity, t/h Number of units Energy consumption kW/h

Hummer crusher

2-10 1 15

Compulsory mixer

2-3 1 3

Extrusion press

2 1 18

Conveyor dryer (2 levels)

2 1 20

Band conveyor

2 3 1,5

Colling conveyor

2 1 2,5



2. Line for briquetting 40 tons per shift (shift – 8 working hours). Following assembly:

Assembly

Productivity, t/h Number of units Energy consumption kW/h

Hummer crusher

5 1 22

Compulsory mixer

5 1 3

Extrusion press

5 1 40

Conveyor dryer (3 levels)

5 1 30

Band conveyor

5 3 3

Colling conveyor

5 1 3

 

Briquetting line scheme