Hot junction type coal dry distillation furnace

Abstract

The invention discloses a hot junction type coal dry distillation furnace. A feeding device and a dry distillation fuel gas pipe are arranged on the top of a furnace body of the hot junction type coal dry distillation furnace; a discharging device is arranged at the bottom of the furnace body; the furnace body main body is provided with a dry distillation chamber, a narrow layer fire-resistant brick layer, a combustion chamber, a fire-resistant wall and a heat insulation layer from the inside to the outside; the heat insulation layer is made of heat insulation materials and ordinary bricks; an initial heating furnace is arranged at one side of the lower part of the furnace body; the dry distillation chamber consists of iron casting elements; the narrow layer fire-resistant brick wall is arranged on the periphery of the dry distillation chamber, and the width is 120 to 130mm; the 1 / 3 height part of the furnace body from the bottom of the furnace body is a solid fire-resistant brick wall; the other 2 / 3 height part of the furnace body is a pattern type fire-resistant brick wall; the combustion chamber surrounds the dry distillation chamber; flow guide plates are in staggered arrangement at the front side and the back side of the combustion chamber; the feeding device comprises a hopper, a discharging valve, a buffer chamber, a buffer material valve and a feeding opening; the discharging device comprises an outlet, a rotating gate, a water pool, a harrow type elevator and a briquette coal conveying belt.

Description

technical field [0001] The invention belongs to the technical field of dry distillation, and in particular relates to a heat-bonded briquette dry distillation furnace. Background technique [0002] At present, most of the retort furnaces used in my country are internal heat retort furnaces. Internal heat retort furnaces have the advantages of long operation period, reliable operation, the ability to use fixed carbon in semi-coke, and the ability to process low-grade oil shale. But, just can't use internal heating type carbonization furnace when developing thermally briquetted coal. Chinese patent 200910011013.8 discloses an externally heated retort furnace, which includes a vertical furnace body composed of a retort chamber and a generating section inside, a feeding device and a slagging device; There are several combustion chambers and regenerators respectively; the upper end of each combustion chamber communicates with the auxiliary coal box at the lower part of the charg...

AI Technical Summary

Problems solved by technology

The structure of the carbonization furnace is relatively complicated, and some structures have no effect on the carbonization of hot coal briquettes

However, the structure of the heat-bonded briquette carbonization furnace used in actual production is too simple and can only be operated intermittently. As a result, the volatile content of the hot-bonded briquette produced is as high as 15%, and the furnace box is easily deformed during the production process. Higher product quality, operating and maintenance costs

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