SU1214715A1 - Apparatus for heat treating of fuel - Google Patents

Description

2, Apparatus pp.1, differing from the yush and with the fact that the diameter of the body is 5-6 diameters of the riser pipe, the diameter of the fire chamber is 3-4 diameters

The invention relates to thermal processing of fuel, in particular to apparatus for thermal processing of oil shale, and can be used in the chemical, fuel processing and energy industries.

The aim of the invention is to reduce the energy costs of circulating the coolant.

The apparatus is shown schematically in the drawing.

The device consists of a housing 1 on which nozzles for supplying 2 fuels 3 of a mixing and 4 stimulating gas agents and a nozzle 5 for draining the vapor-gas mixture are placed. In the upper part of the housing there is a separator 6 for returning the heat transfer fluid with a nozzle 7 for exhausting flue gases together with the ashes of the processed fuel. Inside the housing there is a coaxially installed airfield 8 type fire chamber with a lifting pipe 9 in the upper part and with channels 10 for supplying heat carrier from the body to the firebox and a branch pipe 11 for supplying air blowing in the lower part. The fire chamber is connected to the lifting pipe by means of a confuser 12, air blowing - with the help of a diffuser 13. The bottom of the channels for transferring coolant from the housing to the furnace is provided with a gas distribution duct with a gas-permeable grill 14. The internal volume of the housing is divided into a mixing chamber 15 and a chamber 16 isothermal latch by means of a gas-permeable lattice 17 with a gas distribution duct.

The device works as follows;

Reprocessing fuel through pipe 2 is fed into the chamber 15 of BICflClH Circulation 483 Subscription Branch ShSh P4tent 7y7 Uzhgorod, Project 4,

the lifting tube, the length of the furnace - 5-7 diameters of the lifting tube and the opening angle of the diffuser - 20-40.

This is where the heated coolant enters from CE / Haratora 6. In the displacement chamber, both streams are mixed in a fluidized bed created under the influence of a mixing gas agent (superheated steam, heated semi-coking gas, etc.) supplied through pipe 3 under the gas-permeable lattice 17. Mixture

ten

fuel and heat transfer is transmitted

isothermal holding chamber 16, where heat and mass transfer and thermal destruction processes are completed in the bulk layer. Engraved in the result

thermal decomposition, the gas-vapor mixture, together with a mixing agent, is cleaned of mechanical impurities and sent to the condensation section, where the desired products are obtained: resin

and semi-coking gas.

The remaining solid phase is a mixture of coke (semi-coke) of the processed fuel with a spent coolant, so-called coke-ash

the remainder, under the influence of the motive agent, supplied through the pipe 4 under the gas-permeable grid 14, is transferred to the furnace through the channels 10, and heated air blow through the pipe 11 with the diffuser 13 is fed into the furnace. In the firebox, in the aeroforth layer, the combustible mass of the QRF burns and the heat released is spent on heating the heat transfer fluid and flue gases.

A mixture of heated ash heat carrier and flue gases through a pipe 9 is passed by pneumatic transport to a separator 6. In the latter, solid heat carrier is planted from the flue stream

gases and pass into the mixing chamber 15, and the flue gases, together with the ashes of the processed fuel, through the nozzle 7 are diverted to the flue gas cleaning and disposal system.

Claims (2)

1. APPARATUS FOR THERMAL PROCESSING OF FUEL with circulating solid coolant, including a housing with nozzles for supplying fuel and gaseous agents and a gas-vapor mixture outlet, a separator located in the upper part of the housing for returning heat carrier with a nozzle for exhausting flue gases, an aerofont type fire chamber, installed in the housing coaxially and having a lifting pipe in the upper part, a pipe for supplying air blast and channels for supplying coolant to the furnace, characterized in that, in order to reduce energy consumption At the same time, it is equipped with a diffuser located between the pipe for supplying air blast and the furnace, and the channels for supplying coolant to the furnace are made in the outlet part of the diffuser. SU,. „1214715> 2. The apparatus pr. 1, distinguish join and with the fact that the diameter of the body is 5-6 diameters of the riser, the diameter of the furnace is 3-4 diameters of the riser, the length of the furnace is 5-7 diameters of the riser and the opening angle of the diffuser - 20-40.