A pyrolysis kiln heat exchange tube group support device

Abstract

The invention discloses a support device for heat exchange pipe sets of a pyrolysis kiln. The support device comprises an H-shaped support arranged on the inner wall of a rotary kiln barrel body. The H-shaped support is composed of two edge frames and a cross rod connecting the two edge frames. Pin shaft holes are distributed in each edge frame at intervals. Multiple interval blocks are arranged in a rectangular space in the height direction, wherein the rectangular space is defined by the two edge frames and the cross rod and is far away from the inner wall of the rotary kiln barrel body. A semicircular concave end and a flat plate end which can be connected with the adjacent interval blocks are arranged on each interval block. The semicircular concave ends on every two adjacent interval blocks are in butt joint with each other to form circular holes allowing heat exchange pipes to penetrate. An annular groove is formed in the flat plate end of each interval block in the length direction. The flat plate ends of every two adjacent interval blocks are in butt joint with each other to form through holes allowing pin shafts to penetrate. The through holes correspond to the pin shaft holes in the edge frames in position. The support device for the heat exchange pipe sets of the pyrolysis kiln is high in reliability, convenient to mount and overhaul and capable of guaranteeing long-term efficient operation of equipment.

Description

technical field [0001] The invention belongs to the coal chemical industry field of producing gas, tar and semi-coke by low-temperature pyrolysis of low-rank coal, and in particular relates to a support device for a heat exchange tube group of a pyrolysis kiln. Background technique [0002] Low-rank coal gas, tar, and semi-coke are produced through low-temperature pyrolysis, which is a better way for clean utilization of low-rank coal, which solves the shortcomings of low-rank coal that cannot be directly used, such as high moisture content and easy pulverization. Dry distillation The existing low-rank coal dry distillation equipment mainly includes vertical external heat furnace, vertical internal heat furnace, gas indirect heat exchange rotary kiln, etc. For the gas indirect heat exchange rotary pyrolysis kiln, there are several flue gas or steam pipes in the kiln, the heat medium passes through the pipes and heats the pipe wall, and the material passes through the cavity ...

AI Technical Summary

Problems solved by technology

At present, the fixed bracket of the heat exchange tube group is generally an integral cast steel structure, which generally has problems such as difficult installation and inconvenient maintenance.

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