Installation of a coal waste sludge for fuel production

 

The invention relates to the processing of fine waste coal industry and subsistence detail in improved fuel household and technological purposes. Installation of a coal waste sludge for fuel production contains a node for the preparation of water-coal suspension, coupled with the concentration spustitelny apparatus, a host of water clarification and thickening of the solid phase, the line of the clarified water outlet connected to the node for the preparation of water-coal suspension, and the drain line is partially clarified water, and the drain line is partially clarified water from concentrating shutteling apparatus is connected to node water clarification and thickening of the solid phase, and the output line of the thickened sludge is connected either with the node for the preparation of water-coal fuel, or site for additional dehydration, a sequence of connected either with the site to obtain briquettes fuel, or with the consumer. The invention allows to obtain fuel of various kinds, in particular water-coal suspension and fuel briquettes, as well as to improve their quality. 1 Il.

The invention relates to the processing of fine oricheskogo destination.

Known treatment plant water-coal slurry to obtain fuels, comprising a hopper, two horizontal polarizer type, a pump for feeding slurry in the concentration spustitelny apparatus, the line output of the thickened sludge and partially clarified water, a pump for feeding the partially clarified water at the site, additional thickening of the solid phase and water clarification, filtration centrifuge and line removal of clarified water and dewatered sludge (EN 2086766, 10.08.1997).

The disadvantage is the impossibility of obtaining fuels of various kinds, in particular water-coal suspension and fuel briquettes, as well as improving their quality.

This objective is achieved in that the installation comprises a device for dosing and mixing solid phase with water, a pump for feeding slurry in spustitelne and clarifying apparatus, a pump for feeding the partially clarified water at the site, additional thickening of the solid phase and water clarification, and the line of clarified water outlet is connected with a device for dosing and mixing solid phase with water, and the output line of the thickened sludge is connected either with the node for the preparation of water-coal fuel (CWF), or with a node for the complement, is for the consumer.

The device operates in the following way (drawing).

From site preparation of an aqueous-slurry suspension (1) with the initial ash content of 10-55% and a solids content of 50-400 kg/m3the sludge slurry is pumped into a dressing-spustitelny-body (2), in which the sludge is simultaneously enriched to ash 8-25% and dehydrated (condensed) content of the solid phase 300-750 kg/m3. Condensed and enriched sludge is served either in the node (3) for further cooking fuel, either in node (4) for further dewatering the slurry to a moisture content of 6-20%. Enriched and dewatered sludge (concentrate) is sent either to the consumer (coking or palautuva burning), or the node briquetting (5) to obtain the briquetted fuel.

Of the apparatus (2) water and waste with ash 45-85% and a solids content 8-60 kg/m3the pump serves on the advanced node thickening (seal of the solid phase) and water clarification (6), which may contain, for example, radial or thin-layer centrifuge, vacuum filter, etc.

The clarified water to solids in it 3-30 kg/m3is sent to the node (1) to prepare a suspension, and compacted waste with ash 45-85% go products - CWF, bitterbynde fuel product for subsequent combustion and solid raw materials for further processing.

Claims

Installation of a coal waste sludge for fuel production, including the site for the preparation of water-coal suspension, coupled with the concentration spustitelny apparatus, a host of water clarification and thickening of the solid phase, the line of the clarified water outlet connected to the node for the preparation of water-coal suspension, and the drain line is partially clarified water, characterized in that the drain line is partially clarified water from concentrating shutteling apparatus is connected to node water clarification and thickening of the solid phase, and the output line of the thickened sludge is connected either with the node for the preparation of water-coal fuel, or site for additional dehydration, a sequence of connected either with the site to obtain briquettes fuel, or with the consumer.

 

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