Large heating furnace needle coke equipment for sale

Large heating furnace needle coke equipment for sale

Product introduction

Influence of outlet temperature of heating furnace on the formation of needle coke

In coking production, the temperature requirement generally refers to the outlet temperature of the heating furnace. After the material enters the coking tower, the feed temperature is different due to the different pipe insulation, coke tower insulation and heat dissipation units, but the general principle is: the initial feed temperature control should be low, and the later feed temperature should be high.

The influence of temperature on the production of needle coke is as follows: the final formation process of asphalt into needle coke can be roughly summarized as: thick ring and macromolecular aromatics - mesophase sphere-spheroid grow up, and melt-gas coke forms fiber structure - solidifies into coke. Hydrogenation Project,Hydrogen Production Eguipment,Heating Furnace Equipment Since the reaction cycle of the delayed coking single tower is about 36 hours, the reaction time of the material in the initial stage of feeding is the longest, so the initial temperature control should be low to provide sufficient reaction time for the growth and melting of mesophase spheres. With the continuous feeding, the reaction time of the material becomes shorter gradually, and the reaction temperature needs to be increased accordingly to shorten the time for the mesophase spheres to grow into fibrous structures. Therefore, higher temperatures are required at the later stages of feeding. If the reaction temperature is too low, the coke strength and coke rate will be affected. If the reaction temperature is too high, the reaction will be too fast, which will affect the structural arrangement of the needle coke fibers.

Product parameter

Name: Needle coke heating furnace

Application: petrochemical industry

Design temperature: ≤800℃

Megawatt: 5-50 MW/unit

Specification：：Cylinder diameter 2-8 meters

The square can be customized in length, width and height

Note:

1. before opening the furnace should be furnace tube, parts, ancillary equipment, process pipelines, instruments and other instruments for a comprehensive inspection, confirm the process is correct, all equipment and parts intact, equipment and pipelines without debris, instruments and instruments flexible and convenient operation, real and accurate data;

2. Steam through the process pipeline and equipment of the furnace system to ensure smooth process flow. When all checks are qualified, the fuel gas line shall be completely replaced with nitrogen and then introduced to the fuel gas line. When fuel gas is introduced, pay attention to the oxygen content of air in the pipe <1%. Before ignition, the content of combustible gas in the fuel gas pipeline is detected, and the ignition operation is carried out after the ignition conditions are met.

3. Use steam stoves in strict accordance with operating rules;

4. Heating, close the steam valve, such as furnace and pressure, must be able to wait for the pressure to zero inch after the pot (box) to take.

Compared with other companies, the advantages of our products are: good thermal insulation effect, high thermal efficiency, good energy saving effect, low smoke exhaust temperature, adjustable dilution ratio, good selectivity, less high boiling substance; Emission standards, small pollution, small footprint.

Product process: blanking, assembly, welding, testing, anti-corrosion, installation, commissioning.