MODE AND A SYSTEM OF CONTINUOUS FEEDING OF SOLID MATERIAL INTO THE SYSTEM OF HIGH PRESSURE AND A JET FEEDING DEVICE (VARIANTS) Russian patent published in 2006 - IPC F23K3/14 

FIELD: the invention refers to a mode and a system of continuous feeding of solid material into a system of high pressure.

SUBSTANCE: the system in its essence is designed for continuous increasing pressure of solid material and its feeding in a high pressure reactor holding a bunker with material in it under primary pressure, a feeding device with input and output, whose output is connected with the bunker so that it is possible to serve into it separately and continuously a part of the material that is in the bunker, a first reservoir whose input is connected with the output of the feeding device in which the second excessive pressure is created. At that the second pressure is at least doubles the first pressure and the feeding device selectively and in essence continuously shifts the solid material from the bunker into the reservoir. The system also holds a capacity with an agent which is used for preparation of a suspension. This capacity is functionally connected with the first reservoir and a heat exchanger. At that a part of the agent containing in it is mixed up with the material at receiving suspension which is squeezed by a high pressure pump through the heat exchanger in which part of the agent is preliminary cooled in a definite manner and the suspension is heated. The system has a suspension separator in which a surplus of the agent used for preparation of the suspension is removed from the suspension passed through the heat exchanger and an inverse pipeline through which a surplus of the agent returns backwards into the first reservoir. At that at processing suspension in the separator the suspension pressure does not change essentially. The system has also an inverse pipeline connected with the feeding device. A part of the agent used for preparation of suspension returns along this pipeline into the feeding device in which this agent is used for shifting of a part of the material through the feeding device from the input into the feeding device to the output of the feeding device and also an evaporator functionally connected with an inverse pipeline. In the evaporator the agent for preparation of suspension is condensed before hitting the first reservoir is and turns into liquid. The system has a second reservoir which is connected with the first reservoir, a high pressure pump which squeezes the material from the first reservoir into the second reservoir along the pipeline and a heat exchanger installed on the pipeline for heating of squeezed material which comes to the second reservoir under. pressure which is essentially larger then in the first reservoir.

EFFECT: allows to create a system of continuous feeding of coal with using of cheap gaseous carbon dioxide for shifting the coal into a combustion chamber at ambient temperature and at bulk density equal to its bulk density in a piled up layer.

36 cl, 5 dwg