A Coke Oven Raw Gas Flame Furnace System

Abstract

The invention discloses a raw coke oven gas flame furnace kiln system. A blowing-in air blower is connected with a horizontal combustion improver quality-improving device (3) through a flow monitoring system; fuel gas (18) is connected with a primary horizontal combustion quality-improving device (16) and a secondary vertical combustion quality-improving device (15) through the flow monitoring system; the secondary vertical combustion quality-improving device (15) joins the horizontal combustion improver quality-improving device (3) and is connected with a burner (6) through a manually operated valve (4) and an electric control valve (5); the working end of the burner (6) is connected with a combustion furnace (8); the burner (6) is connected with an ignition device (7); a thermocouple (9) and an observation port (12) are arranged on the combustion furnace (8); the exhaust gas port of the combustion furnace (8) is connected with a smoke exhaust pipeline (10); a smoke exhaust fan (11) is arranged on the smoke exhaust pipeline (10); a monitoring control system (13) is in communication connection with a first flow monitoring system (2), a second flow monitoring system (17), the thermocouple (9), the electric control valve (5) and the smoke exhaust fan (11). The raw coke oven gas flame furnace kiln system is high in combustion efficiency, effectively saves energy sources, decreases the cost, and reduces the environmental pollution.

Description

technical field [0001] The invention relates to a flame furnace system, in particular to a coke oven raw gas flame furnace system. Background technique [0002] Coke oven raw gas is a by-product of industrial coking engineering, and each ton of dry coal can produce about 300-350m 3 Coke oven gas. Its main components are: H 2 、CH 4 , CO, C m h n , CO 2 , N 2 and O 2 etc., where the combustible component H 2 The content is about 55-60%, CH 4 The content is about 23-27%, CO and C m h n content of 5-8% and 2-4%, respectively, and the rest of the non-combustible components include CO 2 , N 2 and O 2 It accounts for about 4-10% in total, and the calorific value reaches 17-19MJ / m 3 Left and right are important secondary energy sources. [0003] The yield and composition of coke oven raw gas vary with the quality of coking coal and the coking process conditions, among which CO 2 , N 2 It neither participates in combustion to generate heat nor supports combustion. O...

AI Technical Summary

Problems solved by technology

At present, there are mainly the following problems: ①The flow of fuel and combustion-supporting air needs to be strictly controlled to prevent the explosion limit; ②The gas impurities are complicated, and the polluted gas needs to be purified; ③The energy consumption per unit product is high and the resource consumption is large; ④The kiln The energy utilization efficiency of the furnace is low; ⑤ There are many types of combustible components, and the combustion is unstable

[0007] In the conventional gas flame furnace combustion system, the normal temperature gas and the combustion air are often mixed and sprayed into the furnace, continue to mix in the furnace, and start to burn when the temperature is raised to the ignition point, but there will be an explosion problem for coke oven raw gas

Images