New environmental protection coking furnace based on the original coking furnace flue gas recovery unit, flue gas recycling can reach clean smokeless, after the flue gas can be recovered and light like liquefied petroleum gas, used for heating, cooking, also for the dryer.

The effect of new environmental protection coking furnace has used a dual-use, material also can be directly carbonized, also can be made good before they are carbonized.

1, volume 3 m3, inside the furnace materials out carbon rate of 40-60%, the yield more than 95%.

2, save work, save time, one person can several coking furnace operating at the same time, with the power of 1.5 km.

The characteristics of

Continuous carbonization furnace is the sawdust, rice husk, peanut shell, straw, bark carbon wood materials such as plants (below 15 mm granular size) in the furnace under the condition of high temperature carbonization, the problem of high rate of anaerobic coking and coking charcoal machine series equipment.

Continuous carbonization furnace used the material in the process of carbonization, carbon monoxide, methane, oxygen and other combustible gas recovery and purification, advanced circulating combustion technology. Namely solves the common coking oven in the coking process of smoke pollution to the environment, and can solve the problem of charcoal machine equipment for heat, fully achieve the autonomous self, the continuity of the equipment was improved, economy, make full use of agriculture and forestry residues, make its waste, to reduce the tension of supply and demand contradiction of forestry resources in our country, contributing to greening the environment to do more.

Carbonization process of coking furnace temperature carbonization process can generally be divided into the following five segments:

A, drying stage.

At this stage in 120-150 degrees Celsius, the temperature of pyrolysis speed is very slow, lumber moisture content is heavily dependent on external heat supply: evaporation, woodiness material chemical composition has changed little.

Second, Yu coking stage.

This stage, the temperature is 150-275 degrees Celsius, wood pyrolysis reaction is more noticeable, woodiness material chemical composition began to change, including the combination of unstable components, such as cellulose decomposition generates carbon dioxide, carbon monoxide and small amounts of substances such as acetic acid.

Third, coking stage.

This is 275-400 degrees Celsius temperature stage, in this phase, the woodiness material rapidly to carry on the thermal decomposition, generates a large amount of breakdown products, production of liquid products contain a large amount of acetic acid, alcohol and wood supporting oil. The generated gas carbon dioxide in water content reduce gradually, and methane, is rare, but gas condition more gradually, release a large amount of heat of reaction of this phase, so also known as the exothermic reaction stage.

Four, the calcine stage.

Temperatures to rise to 450-500 degrees Celsius, this stage depends on external supplies heat to calcine charcoal residues from the volatile substances in charcoal, fixed carbon content, improve the charcoal is one of the few generated liquid product.

Five, refined carbon phase.

This stage, the temperature is 500-1200 degrees Celsius, the key is the stage.