Furnace capable of simultaneously producing semi coke by using small-particle coal

Abstract

The invention discloses a furnace capable of simultaneously producing semi coke by using small-particle coal. The furnace comprises a furnace body, wherein a charring chamber is arranged in the furnace body; the middle part and the lower part of the charring chamber are steel water jackets connected with water inlet and outlet pipes; and inlet pipes which are communicated with each other and are provided with control valves are distributed on the peripheral wall of the steel water jackets uniformly. The furnace has reasonable structure, can effectively control the burning temperature in the charring chamber, avoid the phenomenon that the small-particle coal is instantly burnt up because of overhigh temperature, and improve the semi coke yield.

Description

technical field [0001] The invention relates to a furnace for producing semi-coke, in particular to a furnace capable of simultaneously producing semi-coke with small particle coal (diameter 4mm). Background technique [0002] Semi-coke, also known as semi-coke, coke powder. It is made of high-quality Jurassic clean coal and has a massive structure. The particle size is generally above 3MM, and the color is light black. Blue carbon requires the characteristics of high fixed carbon, low ash content, low aluminum, low sulfur and low phosphorus. It can replace metallurgical coke, smokeless block and charcoal and is widely used in calcium carbide, metal silicon, ferroalloy, ferrosilicon, ferrochrome, In the production of silicon manganese, silicon carbide, chemical fertilizer and other products. In the process of producing blue carbon, the coal tar in the raw coal is simultaneously extracted as an industrial raw material, and the gas can be directly recovered and used for sme...

AI Technical Summary

Problems solved by technology

[0003] Previously, semi-coke was generally produced with lump coal, and the size of the raw material lump coal should not be too small (at least the size should be greater than 5 cm), otherwise the lump coal would be burned instantly due to the high temperature in the furnace. Ashes, cannot produce semi-charcoal products

In addition, during the production of semi-coke, the furnace of the production equipment will quickly coke due to coal tar, which will cover the pores in the furnace and hinder the normal production, requiring frequent shutdowns for maintenance

At the same time, in order to solve the problem of self-adhesiveness of the furnace when the furnace temperature is too high, 50% of the gas is wasted to dilute the oxygen

The overall problems are: long production process, high power consumption, large ash content, poor product quality, low benefit, waste of gas, small single furnace output, large floor area, and inability to produce blue carbon with small particle coal.

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