Refractory Material for Coke Oven Introduction
Coke oven for refractory material is a thermal equipment for metallurgical coke. Coke oven is a large-scale industrial furnace with complex structure and continuous production. The coke oven is mainly composed of a carbonization chamber, a combustion chamber and a regenerator. Refractory material for coke oven is used to construct the lining around these areas. The quality of the coke oven refractory material directly affects the normal operation and service life of the coke oven.
Refractory Material for Coke Oven
1.
Silica Brick
1)Silica Brick Application
Silica brick application in carbonization chamber and combustion chamber partition wall, carbonization chamber bottom, ramp, flue.
2)Silica Brick Feature
Strong resistance to acid attack.
The load softening temperature is high.
Good thermal conductivity, no residual shrinkage.
Suitable for long-term high temperature conditions.
2.
Fire Clay Brick
1)Silica Brick Application
Silica brick is suitable for coke oven regenerator, refractory for furnace roof.
2)Silica Brick Feature
Have cost-effective
Have high refractoriness
Have good thermal shock performance
3.
High Alumina Brick
1)High Alumina Brick Application
High alumina brick is suitable for carbonization chamber burner
2)High Alumina Brick Feature
Strong acid-resistant slag.
High density and good wear resistance.
High refractoriness and high softening temperature.
4.
Sillimanite Brick
1)Sillimanite Brick Feature
High temperature of softening
Good thermal shock performance
High temperature volume stability, low creep rate
Coke Oven Masonry and Precautions
1.First, the quality of the furnace lining brick itself must meet the standard requirements.
2.The masonry of the working layer should be integrated masonry.
3.When building the masonry, follow the principle of “close, back, and strict”. The fire bricks should be tightly closed. The refractory brick joints should be less than 3-6mm, but the expansion joints must be left.
4.The bottom of the furnace should be kept level.
5.the regenerative dry refractory bricks should be aligned with the upper and lower holes.
6.For the regenerative type, ramp area, carbonization room and furnace roof, pay attention to the masonry number during construction.
7.The brickwork is made of “squeezing method” to ensure the refractory mud is full.
8.After the masonry is completed, the joint joint is double-stitched.
Coke Oven Lining Routine Maintenance
1.Lay the coke oven lining according to the construction standard to ensure the quality of the furnace.
2. Strict control of the oven process, in accordance with the heating curve oven, prohibiting the temperature rise too fast, affecting the service life of the lining.
3.Normally enter the production state after the oven.
4.Standard operation of daily positions, implementation of push-focusing plan, strengthening of furnace temperature management, and timely cleaning of graphite on the furnace wall.
5.Control the coking time and stabilize the number of cokes.
6.Determine the reasonable management of the iron parts of the furnace.
7. Optimize the charge to reduce the erosion of the inferior charge on the lining.
