SU358923A1 - - Google Patents

Description

The invention relates to chemical technology and in particular to the method of burning carbon-containing products.

Known methods for burning carbon-containing products consist in heat treatment of products in coal bed with the use of a heat source, such as an electric heater.

However, the known methods are not effective enough and do not provide high-quality finished products.

The purpose of the invention — to increase the efficiency of the method and improve the quality of the finished products — is achieved by bringing the filling in contact with the product from the side of the product that is not facing the heater.

The drawing shows a device for carrying out the proposed method.

The calcined article 1 is placed in a container 2 heated by a heater 3. On the sides not facing the heaters, there is a single backfill 4.

Charcoal backfill, separating gas at the initial stages of heating (up to 200 ° C), in most cases, may completely refuse to supply the protective gas to the furnace. In the temperature range of 200-500 ° C, when hydrocarbons are intensively emitted from the products being processed, including heavy ones, the coal charge is absorbed by the condensing agent. 2

These are volatile due to the highly developed surface and lower temperature compared to the products of miners with the elements of the furnace working space. With the further increase of the telesheature in the furnace, a coking coil of condensate occurs on the surface of the coal bed, which can be reused after cooling.

Example. At the bottom of the retort (container) of the furnace, a layer of 40–50 mm thick coal filling is poured on which a series of blocks are pressed down onto the basis of soot of 1 pitch from the powder until the filled retort is filled. A metal grid is installed on the upper row of blocks, which is also covered with a layer of coal bolts with a thickness of 50-100 mm. The furnace includes} heating up to 950 ° C at a speed of 50-100 ° C / hour, kept at a maximum temperature of 2 hours and cooled.

The proposed method is characterized by high quality of finished products, low heating rate, lower temperature in the kiln than nrp firing in full hhol; oh backfill. Higher temperature in the coal-bed firing process is a matter of fact: the method is explained by a large temperature gradient but the cross section of the charge due to chemical firing, so that the actual temperature is equal to the product. Thermonzole is explained

The properties of the backfill are also the firing duration.

Subject invention

The method of burning carbon-containing products by heat treatment of products in coal filling using a heat source, such as an electric heater, is different in that, in order to increase the efficiency of the method and improve the quality of the finished products, the filling is brought into contact with the product from the sides of the product not connected to the heater .