The recirculated gases of the pyrolysis furnace uglevyzhigatelnuyu

 

The invention relates to chemical industry, in particular the heat-exchange chamber devices uglevyzhigatelnuyu furnaces. The invention consists in that the recirculation system pyrolysis gases uglevyzhigatelnuyu furnace camera including pyrolysis with flue pipes, the pipes of the intake and exhaust gas mixture and the exhaust fan, the inlet sampling gas mixture from the chamber of the pyrolysis placed at the ceiling of the chamber, and the nozzles of the ejection of the vapor-gas mixture into the chamber of the pyrolysis is carried out in them the outlets located at the hearth, along the walls of the chamber pyrolysis. The proposed system recycling pyrolysis gases can reduce the cycle time of the pyrolysis and to ensure uniformity of the processing of the pyrolysis of the raw material gas-vapor mixture. 1 Il.

The invention relates to chemical industry, in particular the heat-exchange chamber devices uglevyzhigatelnuyu furnaces.

Known uglevyzhigatelnuyu oven (A. C. 1250383, MKI With 10 1/06), in which the gas circulation system includes a furnace chamber of the pyrolysis and the chimney. The transfer of heat from the hot flue gases of the pyrolysis raw material is the result of a natural draught from the furnace to the chimney.

Negotating raw materials.

The closest in technical essence to the proposed solution is a system of recirculation gases of pyrolysis uglevyzhigatelnuyu furnace, consisting of a fan, the nozzles of the intake gas mixture and the flue gases from the chamber, the nozzles of the ejection of the gas mixture and the flue gases into the chamber, where it is an outdoor container with pyrolysis raw material (RF Patent 2088632, IPC 10 In 53/02, 1997).

A disadvantage of the known device is the placement of the nozzles of the fence hot furnace flue gases, mixed with the recirculated gases of pyrolysis, the floor of the chamber, with the release of these gases through the nozzles of the ejection of gases from the chamber arch that creates a counter-current gas flows in the chamber and reduces the time and completeness of the interaction of gases coming from the furnace, recycled gases and pyrolysis of raw materials.

The problem solved by the invention is the reduction in the duration of the pyrolysis cycle, ensuring the uniformity of processing of the pyrolysis of the raw material gas-vapor mixture.

This object is achieved in that the recirculation system pyrolysis gases uglevyzhigatelnuyu furnace camera including pyrolysis with flue pipes, the pipes of the intake and exhaust gas mixture and the exhaust fan according to the invention the pipe fence combined cycle salmenniemi them in the outlets located at the hearth, along the walls of the chamber pyrolysis.

The drawing shows uglevyzhigatelnuyu furnace in longitudinal section with the recirculated gases.

The recirculation system pyrolysis gases uglevyzhigatelnuyu furnace includes camera pyrolysis 1 arch 2, pod 3, flues 4, the furnace 5 with podduvalom, hog 6 with the outlet 7 and the recycling pyrolysis gases, consisting of a nozzle 8 of the intake gas mixture from the chamber of the pyrolysis 1, gazivoda 9, the exhaust fan 10, the nozzles 11 release recirculated gas mixture into the chamber of the pyrolysis of the output hole 12.

The recirculation system pyrolysis gases uglevyzhigatelnuyu furnace operates as follows.

Atmospheric air through the ash-pit enters the furnace 5. The resulting hot flue gases with a temperature of 900-1000oWith via the outlet port 7 of the pig 6 is received inside the chamber of the pyrolysis 1 and go up to the arch of the camera, giving heat to the pyrolysis feedstock, and fall to the hearth 3. From heated wood allocated water vapor, giving a mixture of gases, the gas-vapor mixture, the excess of which is removed from the chamber 1 through the flue pipe 4. For an intensification of evaporation of moisture from the pyrolysis of the raw material enters the exhaust fan 10. Through the pipe 8, the gas-vapor mixture Zab is Arsenii drying pyrolysis of the raw material gas-vapor mixture is transformed into gases of pyrolysis, the exhauster 10 at the stage of redpiraya continues to operate until the temperature reaches 400oC. the Exhauster 10 and the temperature reaches 400oWith disconnects, and, in the temperature range of 400-550oIn the process exothermic reaction, charcoal in the chamber reaches a condition, passes through a stage hardening, then, when deactivated, the recycling pyrolysis gases is cooled to a temperature of 45oWith cooled charcoal unloaded and served to stabilize.

Claims

The recirculation system pyrolysis gases uglevyzhigatelnuyu furnace camera including pyrolysis with flue pipes, the pipes of the intake and exhaust gas mixture and the exhaust fan, wherein the outlet of the intake gas mixture from the chamber of the pyrolysis placed at the ceiling of the chamber, and the nozzles of the ejection of the vapor-gas mixture into the chamber of the pyrolysis is carried out in them the outlets located at the hearth along the walls of the chamber pyrolysis.

 

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