Environmentally friendly and energy-saving coke oven door brick

1. Energy Saving Effect Saving Energy

Prefabricated bricks use a composite structure of light and heavy materials. The bottom of the prefabricated brick is combined with a light-weight heat-insulating material. The overall performance is good, the brick sealing is less, and the comprehensive thermal conductivity coefficient is low. Our company designed the working layer of the door brick 400mm, Thermal conductivity 1.36w/m.k, Thickness of the composite insulation layer below the working layer 60mm ，体密 0.28g/CM3, Thermal conductivity: 0.06w/m.k.

The precast brick uses a composite structure, with the brick bottom composed of light thermal insulation material. The overall performance is good; during installation, the brick gap is minimal, resulting in a low comprehensive heat conduction coefficient. Our company designs the furnace door brick working layer at 400mm, with a thermal conductivity of 1.36w/m.k. The thickness of the composite insulation layer on the back face is 60mm, with a bulk density of 0.28g/CM3 and a thermal conductivity of 0.06w/m.k.

Through the combination of the working layer and insulation layer, the outer skin temperature of the furnace door is effectively reduced, resulting in good heat preservation. This saves energy, improves the coke quality of the furnace head, protects the side fire channel wall, and improves the working environment outside the coke oven. Additionally, reduced heat loss in the furnace allows for a moderate decrease in the side fire road gas volume, further saving energy. 700 吨标煤。

Through the combination of working layer and insulation layer, the outer skin temperature of the furnace door is effectively reduced, and the heat preservation effect is good. It not only saves energy, but also improves the coke quality of furnace head, protects the side fire channel wall and improves the working environment outside coke oven. In addition, the heat loss in the furnace is less, which can moderately reduce the gas volume of the side fire road and further save energy. It is estimated that the annual energy saving of each group of coke ovens is about 700 tons of standard coal compared with the traditional furnace doors.

2 Environmental protection effects Environmental protection

The composite furnace door brick, due to its large-scale design, 5 The coke oven door is assembled from fewer bricks, resulting in fewer gaps, high strength, resistance to damage, and good sealing performance. This prevents the leakage of toxic and harmful gases during the coking process, improving the worker's working environment and yielding significant social benefits.

Because of the large-scale design of the composite furnace door brick, the whole coke oven door is composed of 5 pcs furnace door bricks, with few gap , high strength, not easy to damage and good sealing performance, which avoids the leakage of toxic and harmful gases in the coking process. The working environment of workers has been improved, and the social benefits have been remarkable.

Using composite furnace door bricks reduces annual CO2 emissions by approximately 1820 tons, reducing SO2 emissions by approximately 16.8 tons, and reducing nitrogen oxide emissions by approximately 4.9 tons.

The annual CO2 emission, SO2 emission and nitrogen oxide emission are reduced by about 1820 tons, 16.8 tons and 4.9 tons, respectively.

3 Convenient installation and maintenance, reducing worker labor intensity

Convenient installation and maintenance to reduce the labor intensity of workers

The installation of the composite furnace door brick is very simple; replacing each furnace door takes only 3-4 hours. Electric hoists are used for all installations, allowing for quick replacement. Surface cleaning uses existing tools; carbon cleaning is convenient, simple, labor-saving, and time-saving, reducing worker labor intensity. The furnace door brick maintains its overall shape, without peeling or carbon leaching.

The installation job of the composite furnace door is very simple, and it takes only 3 hours to replace each door, and all of them are hoisting with electric hoist, which can be replaced quickly. Surface cleaning using existing tools, cleaning carbon is convenient, concise, labor-saving and time-saving, reduce the labor intensity of workers. The furnace door brick has a good shape and no peeling and carbon leaching.

Replacing a furnace door made of small refractory bricks takes approximately 2 days, requiring manual removal and cleaning with a wind pick, then rebuilding brick by brick, which is very labor-intensive.

It takes about 2 days for the door of small refractory brick to be replaced ( old & tradition refractory brick design ), and it needs to be removed and cleaned manually with wind pick, and then replace that one by one, and the amount of manual labor is very large.

4 Lightweight furnace door Furnace door total weight is light

The new furnace door brick eliminates the cast iron brick slot, reducing the weight of each furnace door by nearly 1 tons. The reduced weight of the entire furnace door reduces mechanical load and wear, making the removal of the furnace door more stable and safer during lifting and movement. Eliminating the cast iron brick slot simplifies on-site management and cleaning.

Because the new furnace door brick no need the cast iron brick slot, each furnace door loses weight by nearly 1 ton. With the reduction of the weight of the whole furnace door, the mechanical load and mechanical wear are reduced, and the removal of the furnace door is more stable and safe in the process of lifting and walking. The cast iron brick slot is removed, which makes the management and cleaning of masonry site very simple.

5 Extended furnace door lifespan Furnace door brick life is longevity

Fewer large furnace door bricks mean a longer lifespan, guaranteed by the manufacturer for more than  4  years. Small refractory bricks have many gaps, making them prone to coke and carbon buildup, difficult to clean, and prone to peeling and chipping, resulting in a lifespan of only 1.5-2 years.

The number of bricks in large furnace doors is small, and the service life of the production company is guaranteed to be more than 4 years. Small refractory brick not only has many gaps, easy to form coke & carbon attachment, very difficult to clean, easy to peel off & cut off blocks, service life is only 1.5-2 years.

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