Method and system of devices for continuous processing of coal waste, in particular slag and fly ash and fuel obtained by this method

摘要

The purpose of the notification is to provide a means for the continuous treatment of coal waste, in particular slag and aerial ash, using fractional separation and partial recycling of water, which means that in the first stage the carbon material -waste in the form of slag and/or aerial ash, undergoes preliminary scrapping and screening to a fraction below 5 mm, preferably below 2 mm, then dilute the material thus obtained in the second stage by adding water to the fragmented fraction obtained from the first stage, preferably by weight compared to 1:5,where the resulting suspension is separated by a low-ash fraction of the combustion fraction, preferably less than 20% in mass, and the separation is multi-stage, this is at least one degree of separation in favour of two, and then, in the third stage, the already separated product- the carbon fraction undergoes additional mechanical dehydration and physicochemical modification in order to obtain a carbon fraction with the desired characteristics, and thus an ecological fuel, having an calorific value above 20 MJ/kg and a humidity below 18% in mass; Whereas the organic fuel thus obtained is a substitute for primary energy raw materials;the whole process, i.e. all of the above steps, is continuously favourably managed at the site of occurrence or/or generation of waste and its integral part is a control-measurement laboratory with at least one control-measurement node (CCP),in which it is monitored continuously, favorably every one minute,and process quality control is carried out at each stage and the organic fuel product obtained; this separation also results in a mineral fraction which is an environmentally neutral waste. The notification shall also cover a system of facilities for the continuous treatment of coal waste, in particular slag and ash, using a vibration detector, a vibration detector with cracking sites and a sludge-settler tank. The system is characterised by being an installation (I) consisting of interconnected devices,where: the first scraping and screening node (1) is at least one screener (P),the second switching node (2) is a positive mixer, the third separation node (3) is at least one enriching and/or grading hydrocycle (H) is a positive two, with the fraction of the combustion suspended from the separation being directed to a vibration probe with slit sieves (S);and the suspension of the "inert waste" mineral fraction obtained from separation, is directed to the container of the sludge settler (O),and positive voltage thresholds are installed on the vibration cracking systems (S), the fourth physico-chemical modification node (4) is: two reservoirs combined with a two-way mixer and humidity sensors located at the inlet of the mixer are advantageous; where the fourth node (4) is connected to the third node (3) by means of vibration screens (S);the first node (1) is connected to the second node (2),and the second node (2) is connected to the third node (3),an integral part of the installation (I) is a control-measurement laboratory with at least one control-measurement node (WKP) at each stage of the installation (1, 2, 3, 4),i.e. at their entry and/or exit, to control process parameters and the fractions and organic fuel obtained. The notification shall also cover fuel produced in that way.