Semi-coke dry-quenching equipment of vertical internally-heated hollow carbonization furnace

Abstract

The invention relates to the semi-coke dry-quenching equipment of a vertical internally-heated hollow carbonization furnace, which consists of coke supporting plates, spray pipes/coke push rods, a large quenching groove, a buried scraper conveyor, a pressure adjustment valve, a first semi-coke cabin, a first switch, a second coke cabin, a second switch and a belt conveyor, wherein the porous spray pipes are arranged on the two sides of each semi-coke pile between each coke discharge opening and the corresponding coke supporting plates respectively, and each spray pipe is provided with an automatic control device; the coke push rods are arranged above the corresponding coke supporting plates; the large quenching groove is arranged below the coke supporting plates, and is provided with the pressure adjustment valve; the buried scraper conveyor is arranged at the bottom of the large quenching groove, and is connected with the first semi-coke cabin; the bottom end of the first semi-coke cabin is connected with the second semi-coke cabin; the bottom end of the first semi-coke cabin is separated from the second semi-coke cabin by the first switch; and the bottom end of the second semi-coke cabin is provided with the second switch, while a lower part is provided with the belt conveyor. The equipment simultaneously sprays water to red-hot carbonized semi-coke with the two spay pipes on the two sides of the coke supporting plate, generates steam after the water spray to quench the semi-coke and scrapes the quenched semi-coke out of the sealed large quenching groove with the buried scraper conveyor and the semi-coke has a water content about 8 percent, which saves a conventional drying procedure. For example, on a 75,000-ton semi-coke production line, about 44 m<3> water is saved every day, coal gases are saved and air pollution is reduced.

Description

technical field [0001] The invention relates to equipment for semi-coke production. Background technique [0002] Semi-coke is a deep-processing product of coal, which is fired from the high-quality Jurassic clean coal abundant in Shenfu Coalfield. As a new type of carbon material, semi-coke has gradually replaced metallurgical coke and is widely used in calcium carbide due to its characteristics of high fixed carbon, high specific resistance, high chemical activity, low ash content, low aluminum, low sulfur, and low phosphorus. It has become an irreplaceable carbon material in the production of products such as ferroalloy, ferrosilicon, and silicon carbide. [0003] The production of semi-coke widely adopts the method of hydra semi-coke, that is, "wet method": the coke quenching tank of the vertical internal heating fasting carbonization furnace is filled with water, and the coke discharge port is submerged in a water depth of about 350MM. When the carbonized semi-coke mo...

AI Technical Summary

Problems solved by technology

This process consumes a lot of water, and the extinguished semi-coke has a high moisture content (about 35%), and requires a secondary treatment process - ignite and dry with gas, and the process of making products is complicated, and consumes a lot of energy. environmental pollution

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