Tunnel typed coking furnace with a movable sliding bed and the method using the same

Abstract

The invention refers to a tunnel typed coking furnace with a movable sliding bed and the method using the same belonging to the coking field, comprising a furnace body (48), a front sealing door (7), a back sealing door (25), a branch flue (10), a bottom flue (12) and a main flue (6), comprising a first preparation chamber (3) for coaling, a preheating segment (50), a carbonization segment (51), a coke dry quenching segment (52), and a second preparation chamber (23) for coke outlet; each part has different formation from the others, and are interconnected in series with the others; the sliding bed (37) for coaling and tamping coal material (44) passes through the abovementioned five segment in series in order to coke. The invention may realize a production coal material with fixed formation through formation process with pressure, so as to obtain the coke product with the same and big size, in addition to high strength, high utilization rate of heat energy, high degree of mechanization, and it also may realize the clean exhaustion of flue, so as to be able to protect the environment and water resource, and realize clean production.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The invention relates to an apparatus and a method for producing coke from coal and in particular to a tunnel typed coking furnace with a movable sliding bed and the method using the same, which can work successively, and may produce the production type coke and tamping coke, which also not only can realize the recovery of the chemical products but also may realize power generation utilizing the excess heat.[0003]2. Description of the Related Art[0004]The coking technology is mainly available in the conventional chemical recycling, top mount or side mount tamping coke machine,Its defect refers to high dependence on the type of coal selected, and high cost of raw materials, the sizes of cokes vary and can be very small, and the coal gas may runaway in the process of operation. The coking technology is also used in the heat recovery coking furnace in which the chemical product is not recovered, but the coking time for thi...

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Benefits of technology

[0006]In view of the above-described problem, this invention is to provide a coking furnace with reasonable structure, broad scope of selection of raw materials, high product quality, high yield, high utilization of heat, which is easy to repair and maintain and can recover coal gas and chemical products, and also may realize power generation with excess heat, and can be environmentally protective; and this invention also provides a method of using the same.

Problems solved by technology

Its defect refers to high dependence on the type of coal selected, and high cost of raw materials, the sizes of cokes vary and can be very small, and the coal gas may runaway in the process of operation.

The coking technology is also used in the heat recovery coking furnace in which the chemical product is not recovered, but the coking time for this type of furnace is very long, and it is unable to accurately control product temperature and rate even in the same carbonization chamber, the quality of different cokes may vary.

In addition, the two above mentioned coking furnace needs large equipments for coal charging, tamping, coke pushing, coke receiving, and the cost of equipments may be very high. and also the resistance for removing is very high and this results in the fact that the coal material may crack when tamping the same, so as to decrease the density and the sturdiness of coal material, and also break the coke when pushing out the coke with a huge force, finally, the mechanical means may abrase the bottom of furnace.

In addition, no complete sealing is formed between two tunnel kilns, or between the kiln bottom and the surroundings, and it also can not recover coal gas and chemical products, and also have the shortage of unreasonable heat utilization, low coking rate and low yield.

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